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CNC ROTARY TABLE RCD series RCD

CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

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Page 1: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Dealers

http://www.sankyo-seisakusho.co.jp

* Product specifications may be changed without prior notice. Before ordering, please contact our sales department.

All patent rights and copyrights for parts of mechanisms described in this catalog andfor trademarks, images, drawings etc. belong to Sankyo Seisakusho Co.

"RollerDrive" is a registered trademark of Sankyo Seisakusho Co. in Japan.

CNC ROTARY TABLE

RCD series

RCD

Page 2: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Cam followrRoller gear cam (input)

Turret(output)

Preload mechanism

The Ultimate CNC Rotary Table

Zero-backlash Technology Delivers Unsurpassed MotionThe RollerDrive CNC is a rotary table designed to meet the requirements of machine tool manufacturers for greater speed and accuracy. The RollerDrive—Sankyo's zero-backlash reducer—delivers accurate output motion that stands up to external disturbances, unlike gearmotors or torque motors. It offers excellent rotary positioning accuracy of 10 seconds or less, and can hold up to heavy cutting forces on hard steel.The heavy-duty RollerDrive CNC has no internal part wear and no loss of accuracy over long-term use, thus eliminating the need for regular calibration or adjustments.

Theory of Operation of the RollerDriveThe RollerDrive uses the roller gear mechanism, one of the finest motion control mechanisms available. The unit is constructed from an input shaft (the roller gear cam) and a turret (output shaft) fitted with roller followers. The roller followers are preloaded against a screw-like input shaft to completely eliminate backlash. Our proprietary adjustment mechanism provides optimum preload.The roller followers planted in the turret use internal roller bearings to transfer torque while rotating. This ensures zero backlash, outstanding precision, and excellent efficiency without causing wear, while providing long-term consistent accuracy.

Exclusive zero-backlash construction

Features

No backlash (play).

High accuracy and good efficiency.

Preloadable for high rigidity.

Clampless machining reduces positioning time.

No deterioration of accuracy over time, initial accuracy is maintained for an extended period.

Rolling contact

Preload

1

Page 3: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Unclamp Clamp ProcessingRotateworkpiece

Processing

Positioning time reduced toabout one thirdPositioning time reduced toabout one third

Rotateworkpiece

Conventionalworm gear (with clamp)

RollerDrive

0

5

10

15

20

25

30

RollerDrive

Worm gear

Var

iatio

n in

pos

ition

ing

accu

racy

[sec

] Variation after 5 million indexes:

24.2sec

0.9sec

1 Million 2 Million 3 Million 4 Million 5 Million

Variation in positioning accuracy

200

100

01 2 3 4 5 6 7 year

①Worm gear rotary tables require maintenance twice a year.②Assumes an annual running cost of 3% (oil changes, etc.) for both types.

Cost simulations are based on a table diameter of about 200 mm.

Initial Cost versus Annual Maintenance Costs

Worm gear rotary tableRoller gear rotary table

Cost becomes less than the wormgear table in three years.

30

20

10

00 1 Million 2 Million 3 Million 4 Million 5 Million

Operating cycles

Positioning Accuracy Aging Test

→High P

ositioning Error

 

Low →

The RollerDrive graph is based on internal testing. (Center distance of test unit: 170)

(arc sec)

RollerDrive

Requires maintenanceat regular intervals

Drop in accuracyover time

Consistent long-term accuracywithout maintenance.

Maintenance

Maintenance

Worm gear rotary t

able

(example)

Extended Accuracy

Time comparison for 90° positioning

Conventional worm gearClamping using hydraulic pressure or air pressure is required to suppress backlash.

RollerDriveZero backlash and high rigidity eliminate the need for clamping.Compared to the worm gear type, positioning time is reduced to about one third.

Consistent long-term accuracy without maintenance.

Worm gear modelsAccuracy declines over time. Requires maintenance to achieve initial accuracy.

RollerDriveAccuracy is consistent with no maintenance even after 5 million operation cycles.

Cost Comparison with a Worm Gear Rotary Table

Offers Long-term Use without Maintenance

Worm gear modelsMaintenance costs occur once or twice a year to adjust the backlash.

RollerDriveLong-term use is possible without any mechanical maintenance.Beats the cost of a worm gear even after adding annual running costs to the initial investment cost. Price performance continues thereafter.

(Based on internal calculations.)

Shorter positioning time

No Maintenance and Excellent Price Performance

(Based on in-house calculations)

Compared against a worm gear for over 5 million indexes.

Test conditions· Table size: Output table diameter: 170 mm· Load inertia: 0.5 kgm2

· Index angle: 36° (unidirectional)· Indexing time: 0.35sec

Results after 5 million indexes:Item Worm gear RollerDrive

Variation in positioning accuracy 24.2sec 0.9sec

Backlash (measured at R60) 18 μm (15 μm 33 μm) -

(Based on internal testing data.)

2

Page 4: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

RCD Heavy duty & versaitile model(Upright / Sideways mount)

Motor rear surface mounting type

Motor top surface mounting type

Support table

φ105 φ170 φ200 φ250 φ300 φ 400

Tail stock

Product Lineup

Auxiliary equipment

HORIZONTAL VERTICAL

Product Lineup / Applications

Cutting tool grinding

Higher accuracy by

Zero-backlash movement

Automotive parts

Improving productivity by

speed of 0.4sec / 90 deg.

Molding parts

High speed & accurate

continuous cutting

Turbine blade

High acceleration

processing

Medical parts

Compact 5 axis

Applications

3

Page 5: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

Product Code

Rotary table1 RCD105 - 2 A 3 R 4 B 5 F 6 1 7 H

1 2 3 4 5 6 7

ModelServo motor

Motor mounting side Connector position Connector type Table shape PostureWith brake Without brake*1

RCD105 A A1 FANUC R Right B Rear F*7 Flexible 1 Tapped holes H*9,*10 Horizontal position

RCD170 B*2 B1*2 MITSUBISHI L Left S*5 Side R Receptacle 2*6 T slot V*10 Upright position

RCD200 C C1 ― *15 B*4 Rear T*6 Top surfaceRCD250 D*3 D1*3 Sanyo Brother type T*4 Top surfaceRCD300 E E1 OKUMARCD400 X X1 Others(Custom)

- 8 EC - 9 M1 10 W - 11 X

8 9 10 11

Options Mounting clamps User-supplied items( Motor, MP scale, A/D converter ) Standard / Custom

C Air / Hydraulic clamping M1 Keys(14 mm width) W No user-supplied items (supplied by Sankyo) Blank Standard

CH*11,*13 Air / Hydraulic clampingExternal rotary joint

M2 T-slot nuts(14 mm width)Y MP scale, A/D converter

User suppliedX Custom

M3 Mounting clamps(14 mm width)

CJ*11 Air / Hydraulic clampingBuilt-in rotary joint

M4 Keys, T-slot nuts(14 mm width) Z User-supplied motorM5 Keys, Mounting clamps(14 mm width)

Blank Motor, MP scale, A/D converterUser supplied

E*11 With MP scale(MPRZ-536A)

M6 Mounting clamps, T-slot nuts(14 mm width)

M7 Keys, Mounting clamps, T-slot nuts(14 mm width)

EC*11 With MP scale(MPRZ-536A)Air / Hydraulic clamping

M8*14 Mounting clamps(14 mm width)[For option J horizontal placement]

M9*14 Keys, Mounting clamps(14 mm width)[For option J horizontal placement]

F*11 With MP scale(MPI-536A)MA*14 Mounting clamps, T-slot nuts(14 mm width)

[For option J horizontal placement]FC*11 With MP scale(MPI-536A)

Air / Hydraulic clampingMB*14 Keys, Mounting clamps, T-slot nuts(14 mm width)

[For option J horizontal placement]H*11,*13 External rotary jointJ*11 Built-in rotary joint MC Keys(18 mm width)

G*11,*12With MP scale(MPRZ-536A)

Air / Hydraulic clampingBuilt-in rotary joint

MD T-slot nuts(18 mm width)ME Mounting clamps(18 mm width)MF Keys, T-slot nuts(18 mm width)

K*11,*12With MP scale(MPI-536A)

Air / Hydraulic clampingBuilt-in rotary joint

MG Keys, Mounting clamps(18 mm width)

*1 If motor brake control is not possible, select a servo motor without brake.*2 The standard Sankyo-supplied motor for motor code B1 (B) is HF□□□ (B) S-A48.*3 For RCD105, select "Without brake". For RCD170 to RCD300, select "With

brake". RCD400 is not available with the Sanyo Brother type motor.*4 RCD105 is not available in the motor top surface type or motor rear surface type.*5 Models of the motor top surface type are not available with the side connector

position.*6 Only models of the motor top surface type are available with the top surface

connector position.*7 If "Flexible" is selected, the flexible cable code must also be selected.*8 For RCD105, the T slot table cannot be selected.*9 Models of the motor rear surface type and motor top surface type are not

available with the horizontal placement posture.*10 Models supporting both postures are available (custom).*11 There is no hollow bore in the table when the MP scale (high-accuracy model) or

rotary joint is installed.*12 Options G and K are only available for RCD250 to RCD400 models of the motor

top surface type. MP scales (high-accuracy type) and rotary joints can’t be used together in models of other types.

*13 Options CH and H are not available for models of the motor rear surface type and motor top surface type.

*14 Options M8 to MB and MJ to MM are only available for models RCD105 to 200 of the motor right/left mounting type.

*15 Contact Sankyo for information about the external controller type.

MH Mounting clamps, T-slot nuts(18 mm width)

MI Keys, Mounting clamps, T-slot nuts(18 mm width)

Blank No optionsMJ*14 Mounting clamps(18 mm width)

[For option J horizontal placement]

MK*14 Keys, Mounting clamps(18 mm width)[For option J horizontal placement]

ML*14 Mounting clamps, T-slot nuts(18 mm width)[For option J horizontal placement]

MM*14 Keys, Mounting clamps, T-slot nuts(18 mm width)[For option J horizontal placement]

MN Keys(22 mm width)MO T-slot nuts(22 mm width)MP Mounting clamps(22 mm width)MQ Keys, T-slot nuts(22 mm width)MR Keys, Mounting clamps(22 mm width)MS Mounting clamps, T-slot nuts(22 mm width)

MT Keys, Mounting clamps, T-slot nuts(22 mm width)

Blank No mounting clamps

Motor mounting side Connector position Connector type / shape Table shape

R B F

S:Straight A:Angled

1

A

B

A BRCD105 (4)M8× 1.25, 16DP 75RCD170 (8)M8× 1.25, 14DP 140RCD200 (8)M8× 1.25, 14DP 170RCD250 (8)M10× 1.5, 18DP 210RCD300 (8)M10× 1.5, 18DP 250RCD400 (8)M12× 1.75, 24DP 355

L S R

B

T

T 2*8 P7~ 8:Table with RCD dimensions

4

Specifications /D

imensions

Options for RCD model tables

Compatible Servo M

otor Models

/ Precision RatingsA

uxiliary equipment

Control methods for air /

hydraulic table clamping

Guidelines for rotary table selection / Check sheet for rotary table specifications

Technical Information /

PrecautionsProduct Lineup /A

pplications Product Code

Page 6: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Flexible cable1 CD-105 - 2 A 3 A 4 S 5 3 6 R - 7 X

1 2 3 4 5 6 7

ModelServo motors for rotary tables Type of flexible connector

at rotary table sideType of connector at

customer side Length Flexible material Standard / CustomWith brake Without brake*1 Manufacturer

CD-105 For RCD105 A A1 FANUC S Straight S Straight 3 3m R Resin Blank StandardCD-170 For RCD170 B B1 MITSUBISHI A Angled A Angled 5 5m M Metal X CustomCD-200 For RCD200 C C1 ― *6

CD-250 For RCD250 and RCD300 D*2 D1*2 Sanyo Brother type

CD-400 For RCD400 E E1 OKUMAX X1 Others(Custom)

*1 If motor brake control is not possible, select a servo motor without brake.*2 For RCD105, select "Without brake". For RCD170 to RCD300, select "With brake"RCD400 is not available with the Sanyo Brother type motor.*6 Contact Sankyo for information about the external controller type.

Support table1 ST105A - 2 1 - 3 CH - 4 M1 - 5 X

1 2 3 4 5Model Table shape Options Mounting clamps Standard / Custom

ST105A For RCD105 1 Tapped holes C Air / Hydraulic clamping M1 Keys(14 mm width) Blank Standard

ST170A RCD170、For 200 2*3 T slotCH*4 Air / Hydraulic clamping

External rotary jointM2 T-slot nuts(14 mm width) X Custom

ST250A For RCD250 and RCD300M4 Keys

T-slot nuts(14 mm width)ST400A For RCD400CJ*4 Air / Hydraulic clamping

Built-in rotary joint MC Keys(18 mm width)H*4 External rotary joint MD T-slot nuts(18 mm width)

J*4, *5 Built-in rotary jointMF Keys

T-slot nuts(18 mm width)Blank No options

MN Keys(22 mm width)MO T-slot nuts(22 mm width)

MQ KeysT-slot nuts(22 mm width)

Blank No mounting clamps

*3 For ST105A, the T slot table cannot be selected.*4 There is no hollow bore in the table when a rotary joint is mounted.*5 Option J is not available (is the same as option H) for ST400A.

Table shape

1

A

B

A B

ST105A (4)M8× 1.25, 16DP 75ST170A (8)M8× 1.25, 14DP 140ST250A (8)M10× 1.5, 18DP 210ST400A (8)M12× 1.75, 24DP 355

2*3 P21~ 22:Table with ST dimensions

Tail stock1 TSS105 - 2 M 3 R - 4 M1 - 5 X

1 2 3 4 5

Model Type Handle side Mounting clamps Standard / Custom

TSS105 For RCD105 M Manual R Right M1 Keys(14 mm width) Blank Standard

TSS135 For RCD170 and RCD200 L Left M2 T-slot nuts(14 mm width) X Custom

TSS185 For RCD250 and RCD300M4 Keys

T-slot nuts(14 mm width)TSS230 For RCD400MC Keys(18 mm width)MD T-slot nuts(18 mm width)

MF KeysT-slot nuts(18 mm width)

MN Keys(22 mm width)MO T-slot nuts(22 mm width)

MQ KeysT-slot nuts(22 mm width)

Blank No mounting clamps

Product Code

5

Page 7: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

Specifications (RCD models of motor side surface mounting type)

Specifications RCD105 RCD170 RCD200 RCD250 RCD300 RCD400

Table diameter mm Φ 105 Φ 170 Φ 200 Φ 250 Φ 300 Φ 400

Table pilot bore diameter mm Φ 60 + 0.03 0 Φ 60 + 0.03

0 Φ 60 + 0.03 0 Φ 110 + 0.035

0 Φ 110 + 0.035 0 Φ 150 + 0.04

0

Center height mm 105 135 135 185 185 230

Table T slot width mm ― 12 + 0.018 0 12 + 0.018

0 12 + 0.018 0 12 + 0.018

0 14 + 0.018 0

Keyway width mm 14 0- 0.011 14 0

- 0.011 14 0- 0.011 18 0

- 0.011 18 0- 0.011 18 0

- 0.011

Clamp type (air 0.5 MPa, hydraulic 3.5 MPa) Air / Hydraulic Air / Hydraulic Air / Hydraulic Hydraulic Hydraulic Hydraulic

Clamp torque*1 N・m 210 310 310 1100 1100 1850

Motor shaft equivalent inertia*2, *3 × 10-4 kg・m2 0.56 2.96 3.15 5.70 5.70 25.76

Motor model (FANUC) α iS2/5000-B(A06B-2212-B400)

α iS4/5000-B(A06B-2215-B400)

α iS8/4000-B(A06B-2235-B400)

α iS8/4000-B(A06B-2235-B400)

α iS8/4000-B(A06B-2235-B400)

α iS22/4000-B(A06B-2265-B400)

Minimum setting unit deg 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001

Maximum table speed min-1 100 70 70 60 60 60

Gear ratio*2 1/50 1/50 1/50 1/60 1/60 1/60

Indexing accuracy arc.sec ± 15 ± 15 ± 15 ± 10 ± 10 ± 10

Repeatability arc.sec 8 8 8 4 4 4

Net weight kg 30 51 59 110 115 263

Allowable payload

Upright position*4

W

kg 50(100) 70(140) 70(140) 255(510) 255(510) 295(590)

Horizontal position Wkg 100 140 140 510 510 590

Allowable load

F F

N 18200 21000 21000 52000 52000 58500

F× Lwith clamping

F

LN・m 210 310 310 1100 1100 1850

Continuous holding torque*2, *5 N・m 122 236 416 512 512 1400

Maximum output torque*2, *5, *6 N・m 221 362 544 987 987 2400

F× LF

L

N・m 900 1300 1300 5500 5500 7800

Allowable workpiece inertia kg・m2 0.5 1.1 1.1 8.3 8.3 15

Extenal rotary joint (number of ports)*7 6+1 6+1 6+1 10+1 10+1 12+1

Internal rotary joint (number of ports)*7 4 6 6 8 8 10

MP scale (high-accuracy model)*7MPRZ-536A (MHI)

MPI-536A (MHI)

*1 Values for RCD105, RCD170, and RCD200 are clamping torques when using an air hydro booster with a air pressure of 0.5 MPa as the supply source.*2 Values for motor shaft equivalent inertia, gear ratio, and continuous / maximum holding torque are given for Fanuc motors. Please contact Sankyo if a different motor is to be used.*3 Motor shaft equivalent inertia does not include the inertia of the motor shaft.*4 The allowable payload value for upright mounting shown in brackets applies when a tail stock or support table is used.*5 The continuous / maximum holding torque is the allowable load torque when a clamp is not used.*6 Maximum holding torque should not exceed 10 seconds with 20% duty.*7 Simultaneous use of the MP scale (high-accuracy model) and the rotary joint is not supported.

6

Options for RCD model tables

Compatible Servo M

otor Models

/ Precision RatingsA

uxiliary equipment

Control methods for air /

hydraulic table clamping

Guidelines for rotary table selection / Check sheet for rotary table specifications

Technical Information /

PrecautionsSpecifications /

Dim

ensionsProduct Lineup /A

pplications Product Code

Page 8: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Dimensions (RCD models of motor side surface mounting type)

RCD105

RCD170

RCD200

RCD250

RCD300

60°

45°

47.575

198 77

.510

5

81.5 284373

177

64

40

(50) 20.5

134.5 0.5

φ10

5

10

145

229

92

20

φ60+

0.0

3

0 φ33+

0.0

25

0

14 0 - 0.018 15

(4)M8×1.25, 16DP

(6)M4×0.7, 8DP

φ10+ 0.015 0

41 ± 0.05

, 10DP

20135

241

253

14 0-0.018

91110

13.7217.5

341.2441

5 157

229.5

φ60

+0.

03 0

32.7

101 40 20.5

161.5

φ33

+0.

025

0

φ35

95

21

9

12+0.018 0

20

17090

229.9

5 157

441

217.513.7

341.2110

91

14 0-0.018

25328

5

9513

5

20

φ60

+0.

03 0

32.7

101 40 20.5161.5

φ33

+0.

025

0

φ35

21

9

12+0.018 0

20

20090

20530

31 107 5110

273

1955

140375135

12+

0.01

8 0

φ25

0

φ11

0+

0.03

5 0

φ11

0+0.0

35 0

φ14

0

199

518.5

330

185

25

18 0-0.018

17

21

12+0.018 0

917

21

12+0.018 0

9

170

20530

31 107 5110

273

1955

140375135

12+

0.01

8 0

φ30

0

φ11

0+

0.03

5 0

φ11

0+0.0

35 0

φ14

0

199

518.5

330

185

25

18 0-0.018

170

Table T slot groove width

Table T slot groove width

Table T slot groove width

Table T slot groove width

7

Page 9: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

RCD400

30

410

30292.3

682

15 261

180

180

502.3171

230

346.8

15 43 192 20

270

251123

225

18 0-0.018

14+

0.01

8 0 14 +0.018

0

φ150

+0.

04 0

φ135+0

.04

0

φ400

φ180

The drawings apply to the following specifications: Fanuc motor, R side mounting, rear connector.

8

Product Lineup /Applications

Product CodeOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Auxiliary equipm

entControl m

ethods for air /hydraulic table clam

pingGuidelines for rotary table selection /

Check sheet for rotary table specificationsTechnical Inform

ation /Precautions

Specifications /D

imensions

Page 10: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Specifications (RCD models of motor rear surface mounting type)

Specifications RCD170 RCD200 RCD250 RCD300 RCD400

Table diameter mm Φ 170 Φ 200 Φ 250 Φ 300 Φ 400

Table pilot bore diameter mm Φ 60 + 0.03 0 Φ 60 + 0.03

0 Φ 110 + 0.035 0 Φ 110 + 0.035

0 Φ 150 + 0.04 0

Center height mm 185 185 185 185 230

Table T slot width mm 12 + 0.018 0 12 + 0.018

0 12 + 0.018 0 12 + 0.018

0 14 + 0.018 0

Keyway width mm 14 0- 0.011 14 0

- 0.011 18 0- 0.011 18 0

- 0.011 18 0- 0.011

Clamp type (air 0.5 MPa, hydraulic 3.5 MPa) Air / Hydraulic Air / Hydraulic Hydraulic Hydraulic Hydraulic

Clamp torque*1 N・m 310 310 1100 1100 1850

Motor shaft equivalent inertia*2, *3 × 10-4 kg・m2 6.14 6.33 10.90 11.10 47.76

Motor model (FANUC) α iS8/4000-B(A06B-2235-B400)

α iS8/4000-B(A06B-2235-B400)

α iS8/4000-B(A06B-2235-B400)

α iS8/4000-B(A06B-2235-B400)

α iS22/4000-B(A06B-2265-B400)

Minimum setting unit deg 0.0001 0.0001 0.0001 0.0001 0.0001

Maximum table speed min-1 70 70 60 60 60

Gear ratio 1/50 1/50 1/60 1/60 1/60

Indexing accuracy arc.sec ± 15 ± 15 ± 10 ± 10 ± 10

Repeatability arc.sec 8 8 4 4 4

Net weight kg 78 80 133 138 305

Allowable payload

Upright position*4

Wkg 70(140) 70(140) 255(510) 255(510) 295(590)

Allowable load

F FN 21000 21000 52000 52000 58500

F× Lwith clamping

F

LN・m 310 310 1100 1100 1850

Continuous holding torque*2, *5 N・m 416 416 512 512 1400

Maximum output torque*2, *5, *6 N・m 544 544 987 987 2400

F× LF

L

N・m 1300 1300 5500 5500 7800

Allowable workpiece inertia kg・m2 1.1 1.1 8.2 8.2 15

Internal rotary joint (number of ports)*7 6 6 8 8 10

MP scale (high-accuracy model)*7MPRZ-536A (MHI)

MPI-536A (MHI)

*1 Values for RCD170, RCD200 are clamping torques when using an air hydro booster with a air pressure of 0.5 MPa as the supply source.*2 The values shown for motor shaft equivalent inertia and continuous/maximum holding torque apply when using a Fanuc motor. Contact Sankyo if using a different motor.*3 Motor shaft equivalent inertia does not include the inertia of the motor shaft.*4 The allowable payload value for upright mounting shown in brackets applies when a tail stock or support table is used.*5 The continuous / maximum holding torque is the allowable load torque when a clamp is not used.*6 Maximum holding torque should not exceed 10 seconds with 20% duty.*7 Simultaneous use of the MP scale (high-accuracy model) and the rotary joint is not supported.

9

Page 11: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

Dimensions (RCD models of motor rear surface mounting type)

RCD170

RCD200

RCD250

▲RCD300

RCD400

188177

3605(85.8) 239.5

24191 150

12110

135

5020

40 20.5101

303

280 φ17

0

360

185

161.5

32.7

φ60

φ35

φ33

14

920

21

12

90909090

188177

3605(85.8) 239.5

24191 150

12110

135

5020

40 20.5101

303

280

φ20

0

360

185

161.5

32.7

φ60

φ35

φ33

14

920

21

12

90909090

1955

20140207135

(35.8) 342

31 107 5110

18

223

423

12

φ25

0

25

185

330

199

φ14

0

φ11

0

φ11

0

9

12

21

17

170170170170

1955

20140

207135(35.8) 342

31 107 5110

18

223

423

12

φ30

0

2518

5

330

199

φ14

0

φ11

0

φ11

0 17

21

12

9

170170170170

1522180265171

43 105 35 52 2015

261

14

φ40

0

18

436

3023

041

0

(34.1)

553

277

φ15

0

φ16

5

135

φ17

5

φ18

0

270

14

23

2311

225225225225

+0.

03 0

+0.

025

0

0-0.018

+0.

018

0

+0.0

35 0+

0.03

5 0

+0.018 0

0-0.018

+0.

018

0

+0.0

35 0

+0.

035

0

+0.018 0

+0.

018

0

0-0.018

+0.

04 0

+0.

04 0

+0.018 0

+0.018 0

+0.

03 0

+0.

025

0

0-0.018

+0.018 0

0-0.018

The drawings apply to the following specifications: Fanuc motor, side connector.

10

Product Lineup /Applications

Product CodeOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Auxiliary equipm

entControl m

ethods for air /hydraulic table clam

pingGuidelines for rotary table selection /

Check sheet for rotary table specificationsTechnical Inform

ation /Precautions

Specifications /D

imensions

Page 12: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Specifications (RCD models of motor top surface mounting type)

Specifications RCD170 RCD200 RCD250 RCD300 RCD400

Table diameter mm Φ 170 Φ 200 Φ 250 Φ 300 Φ 400

Table pilot bore diameter mm Φ 60 + 0.03 0 Φ 60 + 0.03

0 Φ 110 + 0.035 0 Φ 110 + 0.035

0 Φ 150 + 0.04 0

Center height mm 135 135 185 185 230

Table T slot width mm 12 + 0.018 0 12 + 0.018

0 12 + 0.018 0 12 + 0.018

0 14 + 0.018 0

Keyway width mm 14 0- 0.011 14 0

- 0.011 18 0- 0.011 18 0

- 0.011 18 0- 0.011

Clamp type (air 0.5 MPa, hydraulic 3.5 MPa) Air / Hydraulic Air / Hydraulic Hydraulic Hydraulic Hydraulic

Clamp torque*1 N・m 310 310 1100 1100 1850

Motor shaft equivalent inertia*2, *3 × 10-4 kg・m2 2.96 3.15 5.70 5.70 25.76

Motor model (FANUC) α iS4/4000-B(A06B-2215-B400)

α iS8/4000-B(A06B-2235-B400)

α iS8/4000-B(A06B-2235-B400)

α iS8/4000-B(A06B-2235-B400)

α iS22/4000-B(A06B-2265-B400)

Minimum setting unit deg 0.0001 0.0001 0.0001 0.0001 0.0001

Maximum table speed min-1 70 70 60 60 60

Gear ratio 1/50 1/50 1/60 1/60 1/60

Indexing accuracy arc.sec ± 15 ± 15 ± 10 ± 10 ± 10

Repeatability arc.sec 8 8 4 4 4

Net weight kg 61 69 120 125 291

Allowable payload

Allowable load*4

W

kg 70(140) 70(140) 255(510) 255(510) 295(590)

Upright position

F FN 21000 21000 52000 52000 58500

F× Lwith clamping

F

LN・m 310 310 1100 1100 1850

Continuous holding torque*2, *5 N・m 236 416 512 512 1400

Maximum output torque*2, *5, *6 N・m 362 544 987 987 2400

F× LF

L

N・m 1300 1300 5500 5500 7800

Allowable workpiece inertia kg・m2 1.1 1.1 8.2 8.2 15

Extenal rotary joint (number of ports)*7 6+1 6+1 10+1 10+1 12+1

Internal rotary joint (number of ports)*7 6 6 8 8 10

MP scale (high-accuracy model)*7MPRZ-536A (MHI)

MPI-536A (MHI)

*1 Values for RCD170, RCD200 are clamping torques when using an air hydro booster with a air pressure of 0.5 MPa as the supply source.*2 The values shown for motor shaft equivalent inertia and continuous/maximum holding torque apply when using a Fanuc motor. Contact Sankyo if using a different motor.*3 Motor shaft equivalent inertia does not include the inertia of the motor shaft.*4 The allowable payload value for upright mounting shown in brackets applies when a tail stock or support table is used.*5 The continuous / maximum holding torque is the allowable load torque when a clamp is not used.*6 Maximum holding torque should not exceed 10 seconds with 20% duty.*7 Models RCD105, RCD170, and RCD200 do not enable the use of MP scales (high-accuracy type) together with rotary joints.

11

Page 13: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

Dimensions (RCD models of motor top surface mounting type)

RCD170

RCD200

RCD250

▲RCD300

RCD400

φ60

32.7101 40 20.5161.5

φ33

φ35

2013

524

523

1.2

135247.3

95 1114

φ17

012

5 157

229.5

20

12

9

21

90909090

2013

524

523

1.2

1351495 55

291.3

20

12

9

21

90909090

φ60

32.7101 40 20.5161.5

φ33

φ35

5 157

φ20

0 12

229.9

31 107 5110

1955

φ11

0

φ 110

φ14

0

199

235

568.

532

518

525 185

330

18

273

12φ

250

917

21

12

31 107 5110

18

33018525

185

325

568.

523

5

199

φ14

0

φ 110

φ11

0

170170170170 12

21

179

1955

φ30

0 12

273

43 105 35 52 2015

322.

341

0

26115

φ15

0

φ16

5

135

φ17

5

φ18

0

270

740.

7

230

30

410230

18

φ40

0 14

347

1123

23

14

+0.0

35 0 +0

.035

0

0-0.018

+0.

018

0

485

0-0.018

+0.

03 0

+0.

025

0

+0.

018

0

+0.

03 0

+0.

025

0

485

0-0.018

+0.0

18 0

+0.018 0

0-0.018

0-0.018

+0.0

35 0

+0.0

4 0

+0.0

4 0

+0.0

35 0

+0.

018

0+

0.01

8 0

+0.018 0

+0.018 0

+0.018 0

+0.018 0

The drawings apply to the following specifications: Fanuc motor, rear connector.

12

Product Lineup /Applications

Product CodeOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Auxiliary equipm

entControl m

ethods for air /hydraulic table clam

pingGuidelines for rotary table selection /

Check sheet for rotary table specificationsTechnical Inform

ation /Precautions

Specifications /D

imensions

Page 14: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

RCD model table mounting clamps (accessories)

a

3

φ7

φ11

1022

14 0-0.018

b

3φ7

φ1110

22

18 0-0.018

c

φ7

φ11

18 0-0.018

22 0-0.021 12

6.5

22

5

d

φ7

φ11

14 0-0.018

18 0-0.018

22

3

104.5

e

φ7

φ11

18 0-0.018

14 0-0.018

22

3

105.5

g

30

40

30

20

15

121248

96

φ14

h

φ14

3050

40

1530

20

15

22.5

45

i

φ18

38

53

25

40

1917.5

35

j

1512

1248

96

φ14

30

40

55

45

k

φ1415

22.5

45

50

40

4055

45

30

l

φ14

38

53

25

40

1917.5

35

m

φ181917.5

35

3665

29 3044

50

o

M12

13.5

22.2

8.5

2915.8

p

M12

11.1

3219.1

17

28.6

q

M16

11.1

3219.1

17

28.6

r

38

25.4

21.5

36

14.2

M16

13

Page 15: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

RCD model table mounting clamp combinations

RCD105, 170, 200 Keys T-slot nuts Mounting clamps

M1 Keys (14 mm width) a:2 pcs. - -

M2 T-slot nuts (14 mm width) - o:2 pcs. -

M3 Mounting clamps (14 mm width) - - g, h:1 pc. each

M4 Keys, T-slot nuts (14 mm width) a:2 pcs. o:2 pcs. -

M5 Keys, Mounting clamps (14 mm width) a:2 pcs. - g, h:1 pc. each

M6 Mounting clamps, T-slot nuts (14 mm width) - o:2 pcs. g, h:1 pc. each

M7 Keys, Mounting clamps, T-slot nuts (14 mm width) a:2 pcs. o:2 pcs. g, h:1 pc. each

M8*1 Mounting clamps (14 mm width)[For option J horizontal placement] - - j , k:1 pc. each

M9*1 Keys, Mounting clamps (14 mm width)[For option J horizontal placement] a:2 pcs. - j , k:1 pc. each

MA*1 Mounting clamps, T-slot nuts (14 mm width)[For option J horizontal placement] - o:2 pcs. j , k:1 pc. each

MB*1 Keys, Mounting clamps, T-slot nuts (14 mm width)[For option J horizontal placement] a:2 pcs. o:2 pcs. j , k:1 pc. each

MC Keys (18 mm width) d:2 pcs. - -

MD T-slot nuts (18 mm width) - p:2 pcs. -

ME Mounting clamps (18 mm width) - - g, h:1 pc. each

MF Keys, T-slot nuts (18 mm width) d:2 pcs. p:2 pcs. -

MG Keys, Mounting clamps (18 mm width) d:2 pcs. - g, h:1 pc. each

MH Mounting clamps, T-slot nuts (18 mm width) - p:2 pcs. g, h:1 pc. each

MI Keys, Mounting clamps, T-slot nuts (18 mm width) d:2 pcs. p:2 pcs. g, h:1 pc. each

MJ*1 Mounting clamps (18 mm width)[For option J horizontal placement] - - j , k:1 pc. each

MK*1 Keys, Mounting clamps (18 mm width)[For option J horizontal placement] d:2 pcs. - j , k:1 pc. each

ML*1 Mounting clamps, T-slot nuts (18 mm width)[For option J horizontal placement] - p:2 pcs. j , k:1 pc. each

MM*1 Keys, Mounting clamps, T-slot nuts (18 mm width)[For option J horizontal placement] d:2 pcs. p:2 pcs. j , k:1 pc. each

RCD250, 300 Keys T-slot nuts Mounting clamps

M1 Keys (14 mm width) e:2 pcs. - -

M2 T-slot nuts (14 mm width) - o:4 pcs. -

M3 Mounting clamps (14 mm width) - - l:4 pcs.

M4 Keys, T-slot nuts (14 mm width) e:2 pcs. o:4 pcs. -

M5 Keys, Mounting clamps (14 mm width) e:2 pcs. - l:4 pcs.

M6 Mounting clamps, T-slot nuts (14 mm width) - o:4 pcs. l:4 pcs.

M7 Keys, Mounting clamps, T-slot nuts (14 mm width) e:2 pcs. o:4 pcs. l:4 pcs.

MC Keys (18 mm width) b:2 pcs. - -

MD T-slot nuts (18 mm width) - q:4 pcs. -

ME Mounting clamps (18 mm width) - - i:4 pcs.

MF Keys, T-slot nuts (18 mm width) b:2 pcs. q:4 pcs. -

MG Keys, Mounting clamps (18 mm width) b:2 pcs. - i:4 pcs.

MH Mounting clamps, T-slot nuts (18 mm width) - q:4 pcs. i:4 pcs.

MI Keys, Mounting clamps, T-slot nuts (18 mm width) b:2 pcs. q:4 pcs. i:4 pcs.

RCD400 Keys T-slot nuts Mounting clamps

MC Keys (18 mm width) b:2 pcs. - -

MD T-slot nuts (18 mm width) - q:4 pcs. -

ME Mounting clamps (18 mm width) - - m:4 pcs.

MF Keys, T-slot nuts (18 mm width) b:2 pcs. q:4 pcs. -

MG Keys, Mounting clamps (18 mm width) b:2 pcs. - m:4 pcs.

MH Mounting clamps, T-slot nuts (18 mm width) - q:4 pcs. m:4 pcs.

MI Keys, Mounting clamps, T-slot nuts (18 mm width) b:2 pcs. q:4 pcs. m:4 pcs.

MN Keys (22 mm width) c:2 pcs. - -

MO T-slot nuts (22 mm width) - r:4 pcs. -

MP Mounting clamps (22 mm width) - - m:4 pcs.

MQ Keys, T-slot nuts (22 mm width) c:2 pcs. r:4 pcs. -

MR Keys, Mounting clamps (22 mm width) c:2 pcs. - m:4 pcs.

MS Mounting clamps, T-slot nuts (22 mm width) - r:4 pcs. m:4 pcs.

MT Keys, Mounting clamps, T-slot nuts (22 mm width) c:2 pcs. r:4 pcs. m:4 pcs.

*1 Options M8 to MB and MJ to MM are only available for models RCD105 to RCD200 with right/left-mounted motors.

14

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsCom

patible Servo Motor M

odels / Precision Ratings

Auxiliary equipm

entControl m

ethods for air /hydraulic table clam

pingGuidelines for rotary table selection /

Check sheet for rotary table specificationsTechnical Inform

ation /Precautions

Options for RCD model tables

Page 16: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

With brake

FANUC MITSUBISHI*2 Sanyo Brother type OKUMA

RCD105α iS2/5000-B

(A06B-2212-B400)HF75BS-A48

- BL-ME24M-50SB/M[ HG75BS-D□□ ]

RCD170α iS4/5000-B

(A06B-2215-B400)HF104BS-A48

R2AAB8100FCPGYM BL-MT40M-40SB/M[ HG104BS-D□□ ]

RCD200α iS8/4000-B

(A06B-2235-B400)HF104BS-A48

R2AAB8100FCPGYM BL-MT40M-40SB/M[ HG104BS-D□□ ]

RCD250α iS8/4000-B

(A06B-2235-B400)HF154BS-A48

R2AA13180HCP9CM BL-MT40M-40SB/M[ HG154BS-D□□ ]

RCD300α iS8/4000-B

(A06B-2235-B400)HF154BS-A48

R2AA13180HCP9CM BL-MT40M-40SB/M[ HG154BS-D□□ ]

RCD400α iS22/4000-B

(A06B-2265-B400)HF354BS-A48

- BL-MT200M-40SB/M[ HG354BS-D□□ ]

Without brake*1

FANUC MITSUBISHI*2 Sanyo Brother type OKUMA

RCD105α iS2/5000-B

(A06B-2212-B100)HF75S-A48

R2AAB8075HXPGYM BL-ME24M-50SN/M[ HG75S-D□□ ]

RCD170α iS4/5000-B

(A06B-2215-B100)HF104S-A48

- BL-MT40M-40SN/M[ HG104S-D□□ ]

RCD200α iS8/4000-B

(A06B-2235-B100)HF104S-A48

- BL-MT40M-40SN/M[ HG104S-D□□ ]

RCD250α iS8/4000-B

(A06B-2235-B100)HF154S-A48

- BL-MT40M-40SN/M[ HG154S-D□□ ]

RCD300α iS8/4000-B

(A06B-2235-B100)HF154S-A48

- BL-MT40M-40SN/M[ HG154S-D□□ ]

RCD400α iS22/4000-B

(A06B-2265-B100)HF354S-A48

- BL-MT200M-40SN/M[ HG354S-D□□ ]

*1 If motor brake control is not possible, select a servo motor without brake. However, since the mechanism is not self-locking, please note that the table may rotate depending on the position in case of a power failure or similar.*2 The standard Sankyo-supplied motor for motor code B1 (B) is HF□□□ (B) S-A48. The □□ characters at the end of each HG series motor model name shown in square brackets [ ] are machine tool manufacturer-specific codes.*3 Contact Sankyo for information about the external controller type.

Compatible Servo Motor Models

15

Page 17: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

Precision Ratings

NO. Measurement Method RCD105 RCD170 RCD200 RCD250 RCD300 RCD400

1Parallelism between table top and reference surface for upright mounting

0.015mm 0.015mm 0.015mm 0.02mm 0.02mm 0.02mm

2 Runout of table top 0.01mm 0.01mm 0.01mm 0.01mm 0.01mm 0.01mm

3 Runout of table reference bore

0.01mm 0.01mm 0.01mm 0.01mm 0.01mm 0.01mm

4Perpendicularity between table top and reference surface for upright mounting

0.02mm (must not lean

forward)

0.02mm (must not lean

forward)

0.02mm (must not lean

forward)

0.02mm (must not lean

forward)

0.02mm (must not lean

forward)

0.02mm (must not lean

forward)

5

Parallelism between rotary axis and guide blocks for reference surface for upright mounting

0.02mm/150mm

0.02mm/150mm

0.02mm/150mm

0.02mm/150mm

0.02mm/150mm

0.02mm/150mm

6

Deviation between rotary axis and guide blocks for reference surface for upright mounting

0.02mm 0.02mm 0.02mm 0.02mm 0.02mm 0.02mm

7Parallelism between rotating center and reference surface for upright mounting

0.02mm/150mm

0.02mm/150mm

0.02mm/150mm

0.02mm/150mm

0.02mm/150mm

0.02mm/150mm

8 Indexing accuracy ± 15arc.sec ± 15arc.sec ± 15arc.sec ± 10arc.sec ± 10arc.sec ± 10arc.sec

9 Repeatability 8arc.sec 8arc.sec 8arc.sec 4arc.sec 4arc.sec 4arc.sec

By mounting a commercially available MP scale to the rotary table, fully closed loop control can be realized.Direct detection of the table's rotation angle enables indexing with high accuracy.

Rotary table

Servo motor

MP scale A/D converter

Servo amplifier

Machining centerMP scale configuration

MP scale A/D converterNC support

FANUC MITSUBISHI

Absolute(MPRZ)

ADB-K70F ○ ×

ADB-K70M × ○

Incremental(MPI)

ADB-K60F ○ ×

ADB-K60M × ○

Notes 1. With the incremental specification, absolute detection is possible by combination with an absolute type servo motor. 2. Refer to the documentation of the respective manufacturer for operation instructions and information on the connection between the A/D converter and higher-level equipment. 3. "MITSUBISHI" in the "NC support" column refers to Mitsubishi CNC.

Options for RCD model tables — high-accuracy type

16

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsA

uxiliary equipment

Control methods for air /

hydraulic table clamping

Guidelines for rotary table selection / Check sheet for rotary table specifications

Technical Information /

PrecautionsCom

patible Servo Motor M

odels / Precision Ratings

Options for RCD model tables

Page 18: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

RCD105

RCD170, 200

4×Rc1/4

13.5

AA

B

BC

CD

D

61.537.5

37.5

0

61.5

25 145

5+ 0.05 0

4×φ

8.2

P.C

.D.4

7.5

+ 0

.05

0

φ60

+ 0

.03

0

1.4 ±0.05

φ20

0

25 162

12

14

45°

45°

6×φ

8.2

47.5

φ60

1.4

5

11.5

61.536.511.5

61.536.5

0

6×Rc1/4

(φ

170)

ABC

DEF

AB

C

E D

F

+0.0

5 0

+0.0

3 0

±0.05

+0.05 0

Options for RCD model tables — rotary joints

Internal type (RCD models of motor side surface mounting type)

Specifications

Product type SizeMax. number of ports Maximum actuation Maximum actuation

pressureInternal type External type

RCD(Motor right/left)

105 4 6+ 1*1

Fluid:Air 0.7 MPa /

Hydraulic 6 MPa

170 6 6+ 1*1

200 6 6+ 1*1

250 8 10+ 1*1

300 8 10+ 1*1

400 10 12+ 1*1

RCD(Motor rear surface)

170 6 -

200 6 -

250 8 -

300 8 -

400 10 -

RCD(Motor top surface)

170 6 -

200 6 -

250 8 -

300 8 -

400 10 -

*1 The +1 indicates the port in the center bore.*2 Make sure to furnish a line filter in the air supply line.*3 Under prolonged use a small amount of actuation oil may leak from the oil port toward the adjacent air port. If possible, the adjacent ports should be left open for use as drain ports.

17

Page 19: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

RCD250, 300

RCD400

RCD105

RCD170, 200

8×Rc1/42515

45 200

A

B

C

D

E

F

G

H

ABCD

EFGH

1118151210

215181

111

φ30

400

φ10

83

(φ

250)

φ12

.2+

0.0

5

12.2

+ 0

.05

0

1.4 ±0.05

1.4 ±0.05

Rc1/4

30°

60°

30°

30°

30°

G

Rc1/4G

5 + 0.05 0

±0.05

6×φ8.2+

0.0

5

0

6×φ8.2+

0.0

5

0

φ10.2

+ 0

.05

0

φ10.2

φ60

+ 0

.05

0

P.C.D.22

φ60

145

+ 0

.03

0

G

A

B

CD

E

F

6×Rc1/4

6×Rc1/4

ACE

BDF

430 75 107

171.6

59 91 123

φ200(φ170)

162171.6

22

5

1.4

43

107

750

59 123910

F D B

E C ABCD

EF A

G

+0.05 0

1.4 ±0.05

27645

17

18

138108784818

1381087848

0

JIHGF

EDCBA

10xRc1/4

AB

C

D

EF

G

H

I

J

External type (RCD models of motor side surface mounting type)

Internal type (RCD models of motor side surface mounting type)

18

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsCom

patible Servo Motor M

odels / Precision Ratings

Auxiliary equipm

entControl m

ethods for air /hydraulic table clam

pingGuidelines for rotary table selection /

Check sheet for rotary table specificationsTechnical Inform

ation /Precautions

Options for RCD model tables

Page 20: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

RCD250, 300

RCD400

RCD170, 200

RCD250, 300

10×Rc1/4

25°25°

Rc1/4K

B

A

D

C

DEF

GH

I K

J

FHJ

A

B

CEGI

49.5

85.5

121.5

157.5

193.5

00

67.5

103.5

139.5

175.5

211.5

270 200

1.4 + 0.05

1.4 ±0.05

5+ 0.05 0

φ46 φ300(φ250)

φ70

φ400

(φ170)

φ200

(φ250)

φ300

φ83

φ12.2

+ 0

.05

0

φ12.2

+ 0

.05

0

φ12.2

+ 0

.05

0

φ26

+ 0

.06

0

6×φ8.2+

0.0

5

0

φ60

+ 0

.03

0

5+ 0.05 0

φ80

+ 0.

03

0

27656.5

12.5

12.5

137.5112.587.562.537.512.5

137.5112.587.562.537.5

0

12×Rc1/4

ABCDEF

GHIJKL

Rc1/2M

ABC

D

EFG

H

I

J

KL

M

25 162

14

12

45°

45°

47.5

11.5

61.536.511.5

61.536.5

0

FED

CBA

6×Rc1/4

AB

C

ED

F

45 200

15

25

21

111815121

1118151

0

HGFE

DCBA

8-Rc1/4

H

G

F

E

D

A

B

C

1.8 ±0.05

1.4 ±0.05

1.4 ±0.05

Internal type (RCD models of motor rear surface mounting type)

External type (RCD models of motor side surface mounting type)

Options for RCD model tables — rotary joints

19

Page 21: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

RCD400

RCD170, 200

RCD250, 300

RCD400

45 276

17

180

48

138108784818

13810878

10×Rc1/4

ABCDE

FGHIJ

AB

C

D

EF

G

H

I

J

162 25

14

45°

45°

11.5

61.536.511.5

61.536.5

0

6×Rc1/4

(φ170)

ABC

DEF

F

DE

C

BA

47.5

1525

45 200

21

111815121

1118151

0

ABCD

EFGH

8-Rc1/4

H

G

F

E

D

C

B

A

27645

17

18

138108784818

1381087848

0

10×Rc1/4

ABCDE

FGHIJ

AB

C

D

EF

G

H

I

J

1.4 ±0.05

5+ 0.05 0

φ100

φ400

φ200

φ83

φ300

(φ250)

φ400

φ100

φ12.2

+ 0

.05

0

φ12.2

+ 0

.05

0

φ12.2

+ 0

.05

0

6×φ8.2+

0.0

5

0

φ80

+ 0

.03

0

1.4 ±0.05

1.4 ±0.05

1.4 ±0.05

Internal type (RCD models of motor top surface mounting type)

Internal type (RCD models of motor rear surface mounting type)

20

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsCom

patible Servo Motor M

odels / Precision Ratings

Auxiliary equipm

entControl m

ethods for air /hydraulic table clam

pingGuidelines for rotary table selection /

Check sheet for rotary table specificationsTechnical Inform

ation /Precautions

Options for RCD model tables

Page 22: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

ST105A

45°

14

62.5 62.5

77.5 77.5

51510

5

190

φ10

5

106

29.5 87

4×12

12 63

φ60

33

40

64

105.5 0.5

(21)

20.5

41

75

(4)M8×1.25, 16DP φ10 , 10DP

0-0.018

+0.

03 0

+0.

025

0

±0.05

+0.015 0

Auxiliary equipment — Support table specifications

Specifications ST105A ST170A ST250A ST400A

Rotary table model RCD105 RCD170 RCD200 RCD250 RCD300 RCD400

Table diameter mm Φ 105 Φ 170 Φ 250 Φ 400

Table pilot bore diameter mm Φ 60 + 0.03 0 Φ 60 + 0.03

0 Φ 110 + 0.035 0 Φ 150 + 0.04

0

Center height mm 105 135 185 230

Table T slot width mm ― 12 + 0.018 0 12 + 0.018

0 14 + 0.018 0

Keyway width mm 14 0- 0.011 14 0

- 0.011 18 0- 0.011 18 0

- 0.011

Clamp type (air 0.5 MPa, hydraulic 3.5 MPa) Air / Hydraulic Air / Hydraulic Hydraulic Hydraulic

Clamp torque*1 N・m 210 310 1100 1850

Inertia of rotating output part × 10-2kg・m2 0.54 2.10 20.00 106.40

Maximum table speed min-1 100 70 60 60

Net weight kg 14 24 54 144

Allowable payload*2

W

kg 100 140 510 590

Allowable load*2

F F

N 16400 18900 46300 52600

F × Lwith clamping

F

L

N・m 420 620 2200 3700

Continuous holding torque*3 N・m 122 236 416 512 1400

Maximum holding torque*3, *4 N・m 221 362 544 987 2400

External rotary joint (number of ports) 6+1 6+1 10+1 12+1

Internal rotary joint (number of ports) 4 4 6 ―

*1 Values for ST105A and ST170A are clamping torques when using an air hydro booster with a air pressure of 0.5 MPa as the supply source.*2 The allowable payload and allowable load values apply to the entire set including the rotary table.*3 The continuous / maximum holding torque is the allowable load torque when a clamp is not used.*4 Maximum holding torque should not exceed 10 seconds with 20% duty.

Auxiliary equipment — Support table dimensions

21

Page 23: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

ST170A

ST250A

ST400A

φ33

0.5120

20.535.564

32.7

φ60

11215.5

127.5

120.5

12

φ17

0

237

135

205

114103.5

62.562.5

14

12 88

4×12

21

9

12

20

90

100 100

137.5 137.5

1405

11015

31 52 5110

305

φ25

400

145

18

144

φ14

0

185

327.

5

9

12

21

17

170

+0.

025

0

+0.

03 0

+0.

018

0

0-0.018

+0.018 0

18 0-0.018

18 0-0.018

12+

0.01

8 0

14+

0.01

8 0

φ11

0+

0.03

5 0

φ18

0

φ15

0+0.

04 0

φ13

5+0.

04 0

φ11

0+

0.03

5 0

+0.018 0

14 +0.018 0

15 43 20

224

146

18515

18

15 215

230

125 125

165.5 165.5

535

230

430

2311

25

225

Table T slot groove width

Table T slot groove width

22

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Control methods for air /

hydraulic table clamping

Guidelines for rotary table selection / Check sheet for rotary table specifications

Technical Information /

PrecautionsA

uxiliary equipment

Page 24: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Auxiliary equipment — Support table mounting clamps (accessories)

n

M10

13.5

22.2

8.5

2915.8

o

M12

13.5

22.2

8.5

2915.8

q

M16

11.1

3219.1

17

28.6

r

38

25.4

21.5

36

14.2

M16

s

M10

11.1

3219.1

17

28.6

t

φ6.8

φ11

14 0-0.018

14

8.8

15.3

u

φ6.8

φ11

14 0-0.018

18 0-0.018

14

8.8

15.34.5

v

φ6.8

φ11

14 0-0.018

18 0-0.018

20

8.5

156

w

φ6.8

φ11

18 0-0.018

20

8.5

15

x

φ6.8

φ11

18 0-0.018

22 0-0.018

20

10.5

178

Support table mounting clamp combinations

ST105A, 170A Keys T-slot nuts Washers

M1 Keys (14 mm width) t:2 pcs. - -

M2 T-slot nuts (14 mm width) - n:4 pcs. M10:4 pcs.

M4 Keys、T-slot nuts (14 mm width) t:2 pcs. n:4 pcs. M10:4 pcs.

MC Keys (18 mm width) u:2 pcs. - -

MD T-slot nuts (18 mm width) - s:4 pcs. M10:4 pcs.

MF Keys、T-slot nuts (18 mm width) u:2 pcs. s:4 pcs. M10:4 pcs.

ST250A Keys T-slot nuts Washers

M1 Keys (14 mm width) v:2 pcs. - -

M2 T-slot nuts (14 mm width) - o:4 pcs. M12, 16:4 pcs. each

M4 Keys、T-slot nuts (14 mm width) v:2 pcs. o:4 pcs. M12, 16:4 pcs. each

MC Keys (18 mm width) w:2 pcs. - -

MD T-slot nuts (18 mm width) - q:4 pcs. M16:4 pcs.

MF Keys、T-slot nuts (18 mm width) w:2 pcs. q:4 pcs. M16:4 pcs.

ST400A Keys T-slot nuts Washers

MC Keys (18 mm width) w:2 pcs. - -

MD T-slot nuts (18 mm width) - q:4 pcs. M16:4 pcs.

MF Keys、T-slot nuts (18 mm width) w:2 pcs. q:4 pcs. M16:4 pcs.

MN Keys (22 mm width) x:2 pcs. - -

MO T-slot nuts (22 mm width) - r:4 pcs. M16:4 pcs.

MQ Keys、T-slot nuts (22 mm width) x:2 pcs. r:4 pcs. M16:4 pcs.

23

Page 25: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

Support table options — Rotary joint

Internal type External type

▲ ▲

ST105A ST105A

▲ ▲

ST170A ST170A

▲ ▲

ST250A ST250A

116.514.5

12.5

5

1.4

φ60

47.5

4×φ8.2

37.5

61.537.5

61.5

0

4×Rc1/4

DC

BA

D

C

B

A

106171.6

60°

51.4

φ6022

φ10.2

6×φ8.2

59 123910

43

10775

G

F D

E C

B

A

Rc1/4 6×Rc1/4

G

F

EDC

BA

12.5

18 127.5

4×φ8.2

47.5

φ60

1.4

5

37.5

61.537.5

61.5

0

4×Rc1/4

AB

CD

A

B

C

D

171.6 120.5

60°

6×φ8.2

φ10.2

22

φ60

1.4

559 123910

43

10775

F D B

E C A

GRc1/4 6×Rc1/4

ABC

DE

F

G

45 145

φ83

12.522.5

φ250

1.4

φ12.2

15

754515

7545

0

ABC

DEF

A

B

C

D

E

F

6×Rc1/4

25°25°

270 145

5

φ46

φ80

φ250

φ12.2

1.4

49.5

193.5

157.5

121.5

85.5

0

67.5

211.5

175.5

139.5

103.50

Rc1/4

10×Rc1/4

ACEGI

BDFHJ

ABC

DEF

GHIJ

K

K

+0.05 0

±0.05

+0.

03 0

+0.

05 0

+0.05 0

±0.05

+0.

03 0

+0.

05 0

+0.

05 0

±0.05

+0.05 0

+0.

05 0

+0.

03 0

±0.05

+0.05 0

±0.05

+0.

05 0

+0.05 0

+0.

03 0

+0.

05 0

±0.05

30°

30°

30°

30°

Specifications

Product type SizeMax. number of ports Maximum actuation

pressureInternal type External type

ST

105A 4 6+ 1*1

Fluid: Air 0.7 MPa /

Hydraulic 6 MPa

170A 4 6+ 1*1

250A 6 10+ 1*1

400A - 12+ 1*1

*1 The "+1" indicates a port using the center bore.*2 Be sure to use a line filter in the air supply.*3 During prolonged use, a small amount of actuation oil may leak from an oil port

to an adjacent air port. If possible, the adjacent port should be left open as a drain port.

24

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Control methods for air /

hydraulic table clamping

Guidelines for rotary table selection / Check sheet for rotary table specifications

Technical Information /

PrecautionsA

uxiliary equipment

Page 26: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

TSS105

TSS135

ST400A

97

14 14

19.5

φ40

41.5 244

φ80

135

20

100

14 105

50 285.5

215

MT3

Right hand (R)

97

19.5

50

φ40

285.5

41.5 244

135

220

14

φ80

100

14

165

25

14

MT3

Right hand (R)

14 0 - 0.018

14 0 - 0.018

ABCDEFGHIJKL

ABCDE

FGHIJKL

M

φ70

φ400

φ12.2

+0.

05 0

φ26

+0.

06

0

1.4±0.05

1.8±0.05

12.5

102.5 230

12.5

137.5112.587.562.537.512.5

137.5112.587.562.537.5

0

MRc1/2 12xRc1/4

External type

Auxiliary equipment — Tail stock dimensions

25

Page 27: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

TSS185

TSS230

Right hand (R)

Right hand (R)

φ50

φ14

0

MT4

18 0 - 0.018

18 0 - 0.018

35560

30550

2751623

0

30

270

18

120

122

17 17

17

100

18

18521

5

25

φ40

17

23014.5

41.5

50

97

303.5

262

φ12

5

MT3

26

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Control methods for air /

hydraulic table clamping

Guidelines for rotary table selection / Check sheet for rotary table specifications

Technical Information /

PrecautionsA

uxiliary equipment

Page 28: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Auxiliary equipment — Tail stock mounting clamps (accessories)

a

3

φ7

φ11

1022

14 0-0.018

b

3φ7

φ1110

22

18 0-0.018

c

φ7

φ11

18 0-0.018

22 0-0.021 12

6.5

22

5

d

φ7

φ11

14 0-0.018

18 0-0.018

22

3

104.5

e

φ7

φ11

18 0-0.018

14 0-0.018

22

3

105.5

o

M12

13.5

22.2

8.5

2915.8

p

M12

11.1

3219.1

17

28.6

q

M16

11.1

3219.1

17

28.6

r

38

25.4

21.5

36

14.2

M16

Tail stock mounting clamp combinations

TSS105, 135 Keys T-slot nuts Washers

M1 Keys (14 mm width) a:2 pcs. - -

M2 T-slot nuts (14 mm width) - o:2 pcs. M12:2 pcs.

M4 Keys、T-slot nuts (14 mm width) a:2 pcs. o:2 pcs. M12:2 pcs.

MC Keys (18 mm width) d:2 pcs. - -

MD T-slot nuts (18 mm width) - p:2 pcs. M12:2 pcs.

MF Keys、T-slot nuts (18 mm width) d:2 pcs. p:2 pcs. M12:2 pcs.

TSS185, 230 Keys T-slot nuts Washers

M1 Keys (14 mm width) e:2 pcs. - -

M2 T-slot nuts (14 mm width) - o:2 pcs. M12, 16:2 pcs. each

M4 Keys、T-slot nuts (14 mm width) e:2 pcs. o:2 pcs. M12, 16:2 pcs. each

MC Keys (18 mm width) b:2 pcs. - -

MD T-slot nuts (18 mm width) - q:2 pcs. M16:2 pcs.

MF Keys、T-slot nuts (18 mm width) b:2 pcs. q:2 pcs. M16:2 pcs.

MN Keys (22 mm width) c:2 pcs. - -

MO T-slot nuts (22 mm width) - r:2 pcs. M16:2 pcs.

MQ Keys、T-slot nuts (22 mm width) c:2 pcs. r:2 pcs. M16:2 pcs.

27

Page 29: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

CNC rotary tableControl methods for air / hydraulic table clamping

Table clamping

Application Serves for holding the table at the stop position during machining.

Recommended application After checking the in-position signal of the drive motor, output the clamp command for

the table clamp and check pressure with the pressure sensor. After a specific interval,

establish the clamp complete (positioning complete) state.

Using a machine tool

servo motor

In principle, servo should be ON, but it is recommended to make provision for servo to be

switched OFF if the table clamp was activated while unbalanced torque is generated and

the motor current exceeds 70% of the rated value. (The servo motor should be designed for

absolute movement and the operation commands must also be issued as absolute values.)

Using a general type

servo motor

The following two types of servo motor control are recommended.

(1) If servo ON is to be maintained, change proportional integral control to proportional

control. This will prevent overload problems.

(2) If servo is to be set to OFF, the servo motor's coordinates would be lost if the servo

motor is designed for relative movement. To prevent this, an absolute movement type

servo motor must be used, and commands must be issued as absolute values.

Points to note The system is designed for the following operation sequence:

Air/Hydraulic pressure ON Clamp, Air/Hydraulic pressure OFF Unclamp. Clamping

can therefore not be performed when power or the air pressure source will go OFF. Motor braking

Application Serves for holding the table at the stop position during power off or servo off.

Recommended application Use a servo amplifier or a servo ON/OFF signal from higher-level equipment to turn the motor

brake on or off. Braking operation is taken to be completed after a specific interval has elapsed.

Using a machine tool

servo motor

The ON timing should be as follows. First use the servo ON signal to enable servo, verify

that servo is ON, then release the brake. After a specific interval for brake release has

elapsed, the operation is taken to be completed. The OFF timing should be as follows.

Use the servo OFF signal to set the brake to ON, and take servo OFF to be completed

after a specific interval has elapsed.

Using a general type

servo motor

Points to note Due to the characteristics of the motor brake function, it cannot be used for holding the

table in the stop position during machining or for table control.

Otherwise machining accuracy may be affected.

Introduction

This section provides information as well as precautions about generally recommended control methods that

can be used with Sankyo CNC rotary tables that support air or hydraulic table clamping or motor braking.

Because the RollerDrive type CNC rotary tables do not have any structural backlash, clamping is not

necessary within certain conditions. This approach eliminates the time required for clamping and unclamping.

It allows positioning at maximum speed, while also consuming no energy for a air or hydraulic system.

However, if a very high holding torque to maintain the table at the stop position is required, table clamping can be

selected as an optional specification.

* In actual use, the characteristics of the equipment installed by the customer and the functions that are targeted are also relevant.

Please use the information provided here as a reference in setting up the appropriate control sequence for the specific application.

28

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Guidelines for rotary table selection / Check sheet for rotary table specifications

Technical Information /

PrecautionsControl m

ethods for air /hydraulic table clam

pingA

uxiliary equipment

Page 30: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Start positioning

Positioning complete

Servo ON command(brake release command)

Check forclamp OFF

100 ms delay

Unclamp command

*1

*1

*1

No

No

No

No

Yes

Yes

Yes

Yes

Yes

No

250 ms delay

*1250 ms delay

Move command

Clamp command

250 ms delay

Check forunclamp ON

Check forin-position

Check forunclamp OFF

Check forClamp ON

The timing should be as follows. Use servo ON signal to enable servo, verify that servo is ON, then release brake.

*1 This value is given only for reference and will depend on actual conditions. Also check the servo motor documentation for recommended values.

After a specific interval for brake release has elapsed, the operation is taken to be completed.

Issue the unclamp command for the hydraulic clamp.

Check for clamp OFF with pressure sensor (1).

Check for clamp ON with pressure sensor (2).

The operation is taken to be completed after a specific interval has elapsed.

The operation is taken to be completed after a specific interval has elapsed.

Issue the move command (index command).

Verify that the in-position (move complete) state has been reached.

Issue the clamp command for the hydraulic clamp.

Check for clamp ON with pressure sensor (2).

Check for clamp OFF with pressure sensor (1).

The move operation is taken to be completed after a specific interval has elapsed.

Control flowchart (for type with table clamp, motor brake, and machine tool servo motor)

29

Page 31: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

Guidelines for rotary table selection

< Check workpiece and tool dimensions >・ The diameter of the workpiece and tools should not exceed the

diameter of the rotary table.

< Check workpiece and tool weight >・ The workpiece and tool weight should not exceed the allowable

payload of the rotary table.

< Check machining load >(Please note that the payload rating is different depending on whether the rotary table has an output clamp or not.)

・ Ensure that the machining load when the table is stopped does not exceed the allowable load.・ Ensure that the machining load when the table is rotating does

not exceed the allowable load. (The machining load torque during rotation must not exceed the continuous holding torque of the rotary table.)

< Check workpiece and tool inertia >・ The workpiece and tool inertia should not exceed the allowable

workpiece inertia of the rotary table.

< Check for machining center interference >・ Ensure that the rotary table does not interfere with the cover,

column, ATC etc. when moving.・ Check the motor mounting position.

< Check machining center table maximum payload >・ The combined weight of the workpiece, tools, and rotary table

(support table weight) must not exceed the maximum payload of the machining center table.

< Check performance of high indexing frequency model >・ Check the performance aspects of the rotary table and motor with

regard to the following items: Workpiece and tool inertia Unbalanced load Drive motor model Table rotation speed, acceleration and deceleration time during

positioning, or positioning rotation angle and positioning time Stop (machining) time after positioning Required service life (number of positioning operations per day)

x (operation days per year) x (operation years)

Rotary table specifications (Motor side surface mounting type)

RCD105 RCD170 RCD200 RCD250 RCD300 RCD400

Table diameter mm Φ 105 Φ 170 Φ 200 Φ 250 Φ 300 Φ 400

Center height mm 105 135 135 185 185 230

Allowable payload

Mounted upright kg 50 70 70 255 255 295

Mounted sideways kg 100 140 140 510 510 590

kg 100 140 140 510 510 590

Allowable load

F N 18200 21000 21000 52000 52000 58500

F N 16400 18900 18900 46300 46300 52600

F× Lwith clamping

N・m 210 310 310 1100 1100 1850

Continuous holding torque*1, *2 N・m 122 236 416 512 512 1400

Maximum holding torque*1, *2, *3 N・m 221 362 544 987 987 2400

F× L N・m 900 1300 1300 5500 5500 7800

Allowable workpiece inertia kg・㎡ 0.5 1.1 1.1 8.3 8.3 15

Net weight kg 30 51 59 110 115 263

*1 The continuous / maximum holding torque values are given for Fanuc motors. Please contact Sankyo if a different motor is to be used.*2 The continuous / maximum holding torque is the allowable load torque when a clamp is not used.

*3 Maximum holding torque should not exceed 10 seconds with 20% duty.

Support table

ST105A ST170A ST250A ST400

Table diameter mm Φ 105 Φ 170 Φ 250 Φ 400

Net weight kg 14 24 54 144

W

W

W

F

F

F

L

FL

30

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Auxiliary equipm

entTechnical Inform

ation /Precautions

Guidelines for rotary table selection / Check sheet for rotary table specifications

Control methods for air /

hydraulic table clamping

Page 32: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

[ Check sheet for rotary table specifications ]

Machine tool manufacturer Model name

Installation orientation □ Upright mount □ Sideways mount □ Upright/Sideways mount □ Other(           )

Motor manufacturer□ FANUC □ MITSUBISHI □ External controller type

□ Sanyo Brother type □ OKUMA □ Other(        )

Motor model □ Sankyo standard (Motor brake: □ Yes □ No) □ Special*1: Model(        )

Motor supplied by □ Supplied by customer □ Supplied by Sankyo

Motor mounting side □ Right □ Left □ Rear □ Top surface

Connector position □ Rear □ Side □ Top surface

Connector type □ Flexible plastic □ Flexible metal □ Receptacle

Table shape □ Tapped holes □ T slot (RCD105: tapped holes specification only)

MP scale requirement □ Not required □ Required: □ Supplied by customer □ Supplied by Sankyo

MP scale type □ Absolute □ Incremental

Clamp requirement □ Not required □ Required: □ Air 0.5 Mpa*2   □ Hydraulic 3.5 Mpa

Rotary joint requirement □ Not required □ Required: □ Internal         □ External   

Key stock □ Not required □ Required

Mounting clamps □ Not required □ Required

Fastening T nut (for main unit mounting clamps) □ Not required □ Required

Coating color □ Sankyo standard □ Specified(                             )

Cable □ Not required □ Required

Cable length □ 3m □ 5m □ Specified:(      )m

Flexible cable connector (table side) □ Straight □ Angled

Cable MS connector (customer side) □ Straight □ Angled

Cable MS connector pinout □ Sankyo standard □ Specified(                             )

Support table □ Not required □ Required

Clamp requirement □ Not required □ Required: □ Air 0.5 Mpa*3   □ Hydraulic 3.5 Mpa

Rotary joint requirement □ Not required □ Required: □ Internal         □ External   

Key stock □ Not required □ Required

Fastening T nut □ Not required □ Required

Coating color □ Sankyo standard □ Specified(                             )

Tail stock □ Not required □ Required

Handle side □ Right □ Left

Key stock □ Not required □ Required

Fastening T nut □ Not required □ Required

Coating color □ Sankyo standard □ Specified(                             )*1 If specifying a motor, select a keyless, straight shaft type equipped with oil seal and brake.*2 Air type is available for RCD105, RCD170, and RCD200 only. For the air type, an air hydro booster is required separately.*3 Air type is available for ST105A and ST170A only. For the air type, an air hydro booster is required separately.

Other special requests/requirements

RCD-2018/10-S

Name of contact at Sankyo:

Attention:

Contact person:

Date:

31

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CNC RCDseries

Technical Information

Backlash, lost motion, hysteresis loss

< General hysteresis graph >

Rated torque

Rated torque

Lost motion

Torque acting on output

* Backlash Rotation angle which can arise even with zero torque (looseness) Lost motion Torsion angle of the midpoint of the hysteresis curve width which arises when applying ±3% rated torque Hysteresis loss Torsion angle where there is no complete return, when torque is applied in both forward and reverse directions

Tors

ion

angl

e

y

Backlash

Hysteresis loss

-3% +3% 50%

x

-+

< hysteresis graph >

Torque acting on output [N・m]

Tors

ion

angl

e [r

ad]

-0.0003-100 -50 0 50 100

0.0003

-0.0002

0.0002

-0.0001

0.0001

0.0000

Table diameter 250 mm

For a general reducer, the hysteresis graph can be obtained by applying torque to the output shaft, and plotting the

generated torsion angle. Backlash, lost motion and hysteresis loss can each be defined from the hysteresis graph,

as indicated above. Lost motion and hysteresis loss depend on the material characteristics, and occur in all types of

structures. Backlash on the other hand occurs only when there are gaps or looseness in the structure. Backlash has

a major effect on accuracy, servo gain and similar factors, and must be minimized. With the using

Sankyo's exclusive preload construction, backlash is completely eliminated and lost motion and hysteresis loss are

controlled to extremely small values, based on the results of research on optimizing materials and structures.

32

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Auxiliary equipm

entControl m

ethods for air /hydraulic table clam

pingTechnical Inform

ation /Precautions

Guidelines for rotary table selection / Check sheet for rotary table specifications

Page 34: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Efficiency

This indicates the percent of input power which is

transmitted to the output. The motion

mechanism has high efficiency because it employs rolling

contact. Efficiency varies depending on conditions such

as load torque, rotation speed and temperature.

Durability

< Test of changes in positioning accuracy over time >

Exactness, forward direction (CCW)Exactness, reverse direction (CW)Repeat accuracy, forward direction (CCW)Repeat accuracy, reverse direction (CW)

00

10

20

30

620,000 1,320,000 1,500,000 2,000,000 2,700,000 3,000,000 4,000,000 5,000,000

Out

put

pos

ition

ing

accu

racy

[arc

. sec

.]

Number of cycles

Test conditions

RollerDrive size Test machine with table diameter 250 mm

Output load weight 152 kg (Φ 500mm)

Output load moment of inertia 4.69 kg·m2

Output rotation angle 0 - 345 degrees (reciprocating)

Output maximum rotation speed 100 min-1

Acceleration time 0.100 sec

Uniform speed time 0.475 sec

Deceleration speed time 0.100 sec

In the , all rotating elements operate in a state of rolling contact, and thus there is almost no wear, or

degradation in accuracy over time. There is almost no change in positioning accuracy after testing operation 5 million

times. This shows that the outstanding accuracy of the can be maintained over the long term.

Ef�

cien

cy [%

]

Torque [N・m]

< Table diameter 250 mm >

02000 400

5 min-1

Output rotation speed

10 min-1

20 min-1

50 min-1

10

20

30

40

50

60

70

80

90

100

33

Page 35: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

CNC RCDseries

Precautions

Air supply

Sankyo's CNC rotary tables come standard equipped

with an air purge outlet. (Use it to blow out condensation

and coolant to prolong the life of electrical parts and

prevent rust in the motor housing.) Supply clean air for

the air purge by referring to the drawing shown.

(Do NOT block the exhaust outlet.)

Lubrication

Sankyo's CNC rotary tables use high-performance lubrication oil. Although the lubricant is chemically and thermally

stable, it should be changed every 3,000 hours of operation in order to ensure longer product life. Even if operated less

than 3,000 hours, the oil should be changed once per year. The condition of the oil can be checked with the oil level

gauge while the unit is in the stop condition. Check the oil level and color. If the level is low or the color has changed,

change the oil regardless of the number of operation hours. Some air bubbles may form in the oil during operation. This

is normal and does not affect quality.

* Be sure to use only the lubricant specified below. Otherwise service life may be reduced and parts may deteriorate.

Specified lubricant: Mobil SHC629 (VG150)

Use in grinding machines

When used in grinding machines, the seal device on the outer periphery of the table may become damaged. The

warranty does not cover such damage.

Maximum rotation speed

The maximum rotation speed for the table given in the specifications refers to the indexing speed. Consult with Sankyo

if the table is to be rotated continuously. Otherwise, the table will heat up and lose accuracy, causing overload alarms

with the servo motor.

General Precautions

■ Under the Japanese trade regulation, RollerDrive CNC can be restricted to supply or export to a country which may

produce weapons or related products.

■ Dimensions and specifications are subjected to be modified without notice.

■ Contents of this catalogue is published in February 2020.

■ Whole or part of the contents, mechanisms, logos, drawings belongs to Sankyo-Seisakusho, Japan. No part of the

catalogue is allowed to copy or redistributed to the third party without the permission of Sankyo Seisakusho.

AC20C-01CG-A (SMC)(Pressure Gauge G36-2-01)* Reference Model

Air combination

IN

OUT

Pressure setting: 0.02 MPaAir consumption: 15 L/min

34

Product Lineup /Applications

Product CodeSpecifications /

Dim

ensionsOptions for RCD m

odel tablesCom

patible Servo Motor M

odels / Precision Ratings

Auxiliary equipm

entControl m

ethods for air /hydraulic table clam

pingGuidelines for rotary table selection /

Check sheet for rotary table specificationsTechnical Inform

ation /Precautions

Page 36: CNC ROTARY TABLE...Roller gear cam (input) Cam followr Turret (output) Preload mechanism The Ultimate CNC Rotary Table Zero-backlash Technology Delivers Unsurpassed Motion The RollerDrive

Dealers

http://www.sankyo-seisakusho.co.jp

* Product specifications may be changed without prior notice. Before ordering, please contact our sales department.

All patent rights and copyrights for parts of mechanisms described in this catalog andfor trademarks, images, drawings etc. belong to Sankyo Seisakusho Co.

"RollerDrive" is a registered trademark of Sankyo Seisakusho Co. in Japan.

Group CompanySANKYO AMERICA INC.10655 State Route 47 Sidney, Ohio, 45365 U.S.A.PHONE:+1-(0)937-498-4901・FAX:+1-(0)937-498-9403E-mail:[email protected]

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[ WUHAN BRANCH OFFICE ]Room 2301, Taihe Square, No.134 Wusheng Road, Wuhan, Hubei Province ChinaPHONE:+86-(0)27-8568-5818・FAX:+86-(0)27-8568-2818

HANGZHOU SANKYO MACHINERY CO., LTD.No.2518 Jiang Dong 2 Road, Hangzhou Jiang Dong Industrial Park,Xiaoshan Zone, Hangzhou, Zhejiang, ChinaPHONE:+86-(0)571-8283-3311・FAX:+86-(0)571-8283-1133

RODAX VIETNAM CO., LTD.Plot No. M1, Thang Long Industrial Park IIDi Su, My Hao, Hung Yen, Viet NamPHONE:+84-(0)221-3-589701・FAX:+84-(0)221-3-589708

SANKYO WORKS (THAILAND) CO., LTD.9/31 Moo 5, Phaholyotin Road, Klongnueng,Klong Luang, Patumthani 12120 ThailandPHONE:+66-(0)2-516-5355・FAX:+66-(0)2-068-0931E-mail:[email protected]

RODAX VIETNAM CO., LTD.

SINGAPORE

ITALY

SANKYO WORKS(THAILAND)CO., LTD.

TAIWAN

OFFICEHEAD OFFICE

FACTORY

SANKYO AMERICA INC.

AGENT

SANKYO KOREA CO., LTD.

THAILAND

SANKYO MIYAGI SEISAKUSHO CO.

HANGZHOU SANKYO MACHINERY CO., LTD.

SANKYO CHINA TRADING CO., LTD.

SANKYO SHIZUOKA SEISAKUSHO CO.SANKYO SEISAKUSHO CO.

Contact us

■ Head Office 3-37-3 Tabatashinmachi, Kita-ku, Tokyo, Japan 114-8538 PHONE: +81-(0)3-3800-3330 FAX: +81-(0)3-3800-3380 E-MAIL: [email protected]

■ TAIWAN No.21, Ln.152, Jianxing Rd., Sanhe Vil., Daya Dist., Taichung City 42876, Taiwan (R.O.C.) PHONE. +886-(0)4-2359-4048 FAX. +886-(0)4-2359-4720 E-MAIL: [email protected]

Mon-Fri AM8:30-12:00 PM13:00-17:30 UTC + 09:00 (JST)(Except public holidays and company holidays)

(International department )

Global network

RCD-2020/02E(AZ)