1-Saddle CNC Lathe

1 2

Birth of the LB that transcends LBOkuma's LB series of NC lathes have always been pioneers,

leaving a path for others to follow behind.The LB series thus has an obligation to respond to the needs of the times, open

possibilities for the next generation, and deliver new value to customers worldwide. That means constantly developing LBs that transcend LB.

Okuma's advanced technology in its SPACE TURN EXII series continues to write new pages in world standards for machining quality, speed, power & torque,

multitasking, ease of operation, and more.

Photo includes optional speci�cations.

Standard window size differs by market region.

The machine against whichall others will be measured

� Application of Thermo-Friendly Concept

� Slanted-box bed construction

Highest Quality

� Equipped with new high-power, high-torque motor

� Combination of larger and faster spindle

� Large through-hole diameter, large working range

� Top rotation speed, horsepower, and torque in its class

Super Rigidity Speed

� Satisfaction from complete control of a machine tool

� Operator-friendly OSP-P300L

Easy Operation

� Abundant series variation

� NC tailstock standard equipment

Extreme Versatility

3 4

0 mm-4.0

-2.0

0.0

2.0

4.0

(μm)

0.50 1.00 1.50

0.3 μm

0.4 μm

2,000 min-1

0

-10

-5

0

5

2 4 6 8 10 12

Elapsed time (Hr)

OD

cha

nge

(øμ

m)

14 16 18 20 22 24

OD dimensional change

ø7 μm

8Cº changeRoomtemp

Thermo-FriendlyConcept

Highest Quality

Machining dimensional change

over time: ø7 mActual data [LB4000 EX turning] (MY) (ambient temperature: 8Cº change)

● Cycle time: 60 sec

● Cutting conditions

● Workpiece material: BsB

X-axis travel: 60 mm3 repetitions/cycle

Spindle speed : 4,000 min-1

Cutting depth : 0.1 mmFeed : 0.05 mm/rev

High accuracy specifications overall assuremachining with high dimensional stability

Thermo-Friendly Concept forunparalleled dimensional stability

Slanted-box bed configuration withsuperior construction and rigidity

Okuma's Thermo-Friendly Concept is used on all the LB EX machines for extraordinary machining accuracy, using our unique machine design and thermal deformation control technology. Outstanding dimensional stability in long-time continuous operation, multitasking, and even Y-axis machining without troublesome compensation or warming up.

The next evolution of the slanted-box bed construction that has been highly praised as a "rugged, Okuma-like construction" in the SPACE TURN series. The primary units of headstock and turret on a box bed is optimally placed for outstanding thermal dimensional and high rigidity. Exhibits stable machining accuracy even in heavy cutting.

Thermo-Friendly Concept

Simple machlneconstructionSymmetrically built

Thick walls

Highly Accurate Control Technology

(on MY machines only)TAS-C

Machine designs thatequalize ambient

temperaturesMachine covers

Peripheral equipment placementMachine “hot spots” diffused

Optimized X-axis feed element

Thermal deformation minimized on Z-axis

Heat sources eliminated and thermal deformation suppressed from the machine's construction

Slanted-box bed achieves outstanding dimensional stability and high rigidity

Material: BsB

● Standard spindle: 0.3 μm/at 2,000 min-1● Standard spindle

0.4 μm/at 2,000 min-1

Standard spindleMaterial: BsB

2000 min-1 Outer perimeter

Tool nose uniformity (for better surface roughness) [Actual data*]Roundness [Actual data*]

* The “actual data” referred to above for this brochure represent examples, and may not be obtained due to differences in speci¦cations, tooling, cutting and other conditions.

5 6

Huge reduction in machining time with an original

high power motor and faster machine movements

Previous machine

LB4000 EX

0 500 1,000 (Sec)

20.4 minutes

16.5 minutesTurning Milling

Non-cutting time

3.9 minutes (20% less)Workpiece

ø140

ø50

6-M12, 20 deep40126

Powerful motor on the spindle gives turning capacity of 6.3 mm2

Reduced operation time achieved with higher speed machine movements

Cylindrical, heavy-duty cutting

Drilling

[Actual data*]

Super Rigidity Speed

Spindle with a larger bearing internal diameter of ø140 mm can accommodate larger workpieces, and a turning capacity of 6.3 mm2 is achieved with a high-speed, wide-area full power motor. Stable, high quality machining, from heavy to high speed cutting.

Bearing ID ø140 (bore ø91)

4,200 min-1

30 kW (40 hp)

700 N-m (515 ft-lbf)

X: 25 m/min (984 ipm)

Z: 30 m/min (1,181 ipm)

4.4 sec (4,200 min-1)

0.2 sec/index

12 m/min (472 ipm)● Spindle size

● Rapid traverse

● Spindle start/stop

● Turret rotate

● NC tailstock rapids

● Spindle speed

● Output

● Torque

Integral motor/spindle—Okuma's own powerful motor—retains full power over a wide area. There are no gears or belts that can cause vibration or bending, for stable machining without chatter.

JIS A2-8

(40/30 hp)Motor output 30/22 kW

ø91

ø140

(ø3.

58)

(ø5.

51)

6.3 mm2 (0.01 in.2)Cutting speed V: 150 m/min (492 fpm)

Cutting depth t : 10 mm (0.39 in.)

Feedrate f : 0.63 mm/rev (0.02 ipr)

ø63 (ø2.48) carbide insert drillCutting speed V: 179 m/min (587 fpm)

Feedrate f : 0.25 mm/rev (0.01 ipr)

Turning 6.3 mm2

(Workpiece: S45C)

ø140, 4,200 min-1

30/22 kW (30 min/cont)

700 N-m (515 ft-lbf)

Standard spindle

ø160, 3,000 min-1

37/30 kW (30 min/cont)

1,178 N-m (866 ft-lbf)

High power specs

Motor/spindle variations

Improved productivity: 20% shorter cycle time*

* Previous machine comparison

* The “actual data” referred to above for this brochure represent examples, and may not be obtained due to differences in speci¦cations, tooling, cutting and other conditions.

50 100 500 1,000 5,000

500

1,000

300

100

50

10

50

30

10

5

1

50 100 500 1,000 5,000

500

300

100

50

10

50

30

10

5

1

N-m kW

Out

put

Spindle speed min-1

Torq

ue

N-m kW

Out

put

Torq

ue

Spindle speed min-1

30 kW (30 min)22 kW (cont)

42 410 840 4,200

700 N-m (30 min)512 N-m (cont)

341 N-m (30 min)250 N-m (cont)

37 kW (30 min)

30 kW (cont)

30 300 900 3,000

1,178 N-m (30 min)

955 N-m (cont)

393 N-m (30 min)

318 N-m (cont)

7 8

Compact, high-power, high-torque PREX motor also used for milling spindle of the multitasking V12 radial turret. This combined with a powerful, highly rigid bolt clamp system greatly increases multitasking speed.

6,000 min-1

PREX 7.5 kW (10 hp)

58.1 N-m (42.7 ft-lbf)

JIS A2-8 10-in. chuck

12-in. chuck

12-in. chuck

15-in. chuck

JIS A2-11

0.2 sec/ index

0.4 sec (6,000 min-1)

1.5 sec

Wide working range

Max machining dia: ø480 mm (M turret: ø430 mm)

End millingChip volume 200 cm3/min (12.2 in.3/min)ø20 7-�ute carbide end millCutting speed V: 200 m/min (656.2 fpm)Cutting depth t : 20 x 2.5 mm (0.79 x 0.09 in.)Feedrate f : 1.26 mm/rev (0.05 ipr)

Face millChip volume 177 cm3/min (11 in.3/min)ø80 face mill 8-bladeCutting speed V: 312 m/min (1,024 fpm)Cutting depth t : 1.6 x 56 mm (0.06 x 2.2 in.)Feedrate f : 1.6 mm/rev (0.06 ipr)

Drillingø28 carbide insert drillCutting speed V: 90 m/min (295.3 fpm)Feedrate f : 0.2 mm/rev (0.01 ipr)

Tapping M24 P3(Synchronized tapping)

Spindle thru hole: Bigger

Distance between centers: 770/1,520 mm

● M spindle

● Output

● Torque

● Turret rotate

● M-spindle start/stop

● M-M switch

Milling tool spindle

● Standard spindle

● Big-bore spindle

Greater efficiency with highest milling performance in its class and fast tool change times

Compact new PREX motor gives milling performance of 200 cm3 /min

Reduced operation time achieved with higher speed machine movements

Out

put

Torq

ue

6,000 min-1

PREX 7.5/4.3 kW (25 min/cont)

58.1 N-m (43 ft-lbf)

● Standard spindle: ø91 mm (ø3.59 in.)

● Big-bore spindle: ø112 mm (ø4.41 in.)

Milling capacity 200 cm3/min(Workpiece: S45C)

[Actual data*]

* The “actual data” referred to above for this brochure represent examples, and may not be obtained due to differences in speci£cations, tooling, cutting and other conditions.

50 100 500 1,000 5,000

100

50

10

10

5

1

45 1,240 4,040 6,000

N-m

Spindle speed min-1

kW

7.5 kW (25 min)

4.3 kW (cont)

58.1 N-m (25 min)

33 N-m (cont)

OSP-P300L Okuma Sampling Path Control

Satisfaction from complete controlof a machine tool

Virtual machine (collision check)

Machining Navi L-g (Optional)

Cutting condition search for turning

Collision Avoidance System (Optional)

Collision prevention

■World’s first “Collision-Free Machine”CAS prevents collisions in automatic or manual mode, providing risk-free protection for the machine and great con�dence for the operator.

■Chatter-free applications for maximum performanceChatter is suppressed by navigating to the best amplitude and wavecycle—without decreasing spindle speed. This helps customers to boost productivity.

What you want to see and do, conveniently come together in a “single-mode operation.”First, select one of three operation screens.Then simply touch the screen or press a function key to see and do your job.

■Setup operations

■Trial/continuous cuts■Programming ■Tool preparations

Fine tuning zone

Chatter graphed

9 10

Easy Operation

Okuma Control [for Lathes]

As a “machine & control” builder, Okuma makes further strides in machine tool manufacturing with this superb control featuring “Easy Operation.” Okuma took a close look at the way machinists actually operate machine tools, to help them create smoother and more effective ways of producing parts. Novice operators as well as professional machinists get complete control—and satisfaction.

11 12

Extreme Versatility

Up to 10 pairs of tailstock positions can be set, enabling continuous machining of workpieces with 10 different lengths without setup. In addition, thrust can be switched between high and low without resetting the workpiece. (Tailstock thrust high/low switch: option) High accuracy positioning is also possible with a high speed linear guide employing a ball screw guide.

● Tailstock thrust

● Rapid traverse

● Approach

● Retract

1 to 7.5 kN (Opt: 1.5 to 10 kN)

12 m/min (472 ipm)

10 m/min (394 ipm)

12 m/min (472 ipm)

Providing rich variation and optimum ease of use

NC tailstock that shortens setup and automates center work is standard equipment

Note: Please select a hyrdraulic quill for face driver machining applications.

A variety of milling operations can be accommodated with high-accuracy, wide-range Y-axis travel using a double slide system. Achieves complete multitasking with a single chucking (MY speci�cations).

Automation can be achieved easily with a simple mechanism in which the bucket swings and discharges workpieces outside the machine.

Complete multitasking with Y-axis functionsOne chuck machining even with irregularly shaped workpieces

●Travel 140 mm (+70 to -70)[5.51 in. (+2.76 to -2.76]

●Y-axis rapid traverse 12.5 m/min (492 ipm)

Y-axis

X-axis

X•Y plane Radial Y-axismachining examples

Y-axis

7070

X-axis

Ys-axis

Simple automation with parts catcher (Optional)

Front door with large window provides outstanding visibility

* Front door with large window shown here is a standard speci�cation for the European market region.

(Optional) *

13 14

Machine Specifications

Swing over bedSwing over saddleDistance between centersMax turning diaMax work lengthX axisZ axisY axisC axisSpindle speedSpeed rangesSpindle noseSpindle bore dia / Front bearing diaTypeNo. of toolsOD tool shankID tool shank diaTurret rotationSpindle speedSpeed rangeRapid traverseTailstock rapidsRapid traverse (C)Cutting (X-Z-Y)Tapered bore typeQuill travelMain spindle (30 min/cont)Milling tool spindleAxis driveTailstock travelCoolant pumpHeightFloor spaceWeight (w/ CNC)

mm (in.)mm (in.)

mmmm (in.)

mmmm (in.)

mmmm (in.)

degmin-1 (rpm)

mm (in.)

mm (in.)mm (in.)

sec/indexmin-1 (rpm)

m/min (ipm)m/min (ipm)min-1 (rpm)

mm/rev (ipr)

mmkW (hp)kW (hp)kW (hp)kW (hp)kW (hp)

mmmm (in.)

kg

Capacity

Travels

Spindle

Turret

Milling tool

Feedrates

Tailstock

Motors

Machine size

CNC

ModelT

—

380

—

——

—

6,000

Cx750

770

750

780

6,300

LB4000 EX (L)

ø670 (ø26.38)ø480 (ø18.90)

ø480 (ø18.90)

300 (11.81)

——

42 to 4,200 [30 to 3,000]In�nitely variable × 2 auto ranges (motor coil switching)

JIS A2-8 [JIS A2-11]ø91 [ø112] / ø140 [ø160] (ø3.58 [ø4.41] / ø5.51 [ø6.30])

V12 NC turretL: 12

25 × 25 (1 × 1)ø40 (ø1-1/2)

0.2——

X: 25, Z: 30 (984, 1,181)

—0.001 to 1,000.000 (0.00004 to 39.37)

30/22 (40/30) [37/30] ([50/40])—

X: 3.5 / Z: 4.6 (4.73/6.21)

OSP-P300L

Cx1500

1,520

1,500

1,590

12 (472)

MT 51,530

2.9SD*: 0.25 (0.34)

2,1574,175 x 2,390 (164 x 94)

8,200

Cx2000

2,170

2,150

2,240

2,180

SD*: 0.8 (1.08)2,005

5,515 x 2,490 (217 x 98)11,000

Name

[ ]: Big-Bore spindle specs

T

—

380

—

——

—

6,000

840

SD*: 0.25 (0.34), RD*: 0.8 (1.08)1,955

3,050 x 1,900 (120 x 75)

840

SD*: 0.25 (0.34), RD*: 0.8 (1.08)2,320

3,050 x 1,900 (120 x 75)

Cx750

770

750

780

6,300

LB4000 EX (M)

—

X: 25, Z: 30 (984, 1,181)

X: 3.5 / Z: 4.6 (4.73/6.21)

Cx1500

1,520

1,500

1,590

12 (472)

MT 51,530

2.9 (3.9)SD*: 0.25 (0.34)

2,1574,175 x 2,390 (164 x 94)

8,200

Cx2000

2,170

2,150

2,240

2,180

SD*: 0.8 (1.08)2,005

5,515 x 2,490 (217 x 98)11,000

ø670 (ø26.38)ø480 (ø18.90)

300 (11.81)

360 (0.001 increments)42 to 4,200 [30 to 3,000]

In�nitely variable × 2 auto ranges (motor coil switching)JIS A2-8 [JIS A2-11]

ø91 [ø112] / ø140 [ø160] (ø3.58 [ø4.41] / ø5.51 [ø6.30])M-V12 NC turret

L / M: 1225 × 25 (1 × 1)ø40 (ø1-1/2)

0.245 to 6,000

In�nitely variable (PREX motor)

200

30/22 (40/30) [37/30] ([50/40])PREX 7.5/4.3 (10/5.7) (25 min/cont)

T

—

380

—

——

—

6,400

Cx750

770

750

780

6,700

LB4000 EX (MY)

140 (±70)

X: 25, Z: 30, Y: 12.5 (984, 1,181, 492)

X: 3.5 / Z: 4.6 / Ys: 3.5 (4.73/6.21/4.73)

Cx1500

1,520

1,500

1,590

12 (472)

MT 51,530

2.9 (3.9)SD*: 0.25 (0.34)

2,5224,175 x 2,390 (164 x 94)

8,600

Cx2000

2,170

2,150

2,240

2,180

SD*: 0.8 (1.08)2,370

5,515 x 2,490 (217 x 98)12,000

ø430 (ø16.93)

0.001 to 1,000.000 (0.00004 to 39.37)

OSP-P300L

Standard Specifications & Accessories Chucking Kit Chuck tableModelSpeci�cations

Spindle

Turret

Milling toolspindleTailstock

Standardaccessories

StandardaccessoriesCNC

T

–

L

V12 bolt clamp

–

T

–

LB4000 EXM

A2-8 42 to 4,200 min-1

30/22 kW (40/30 hp) (30 min/cont)NC indexing

Coolant system (water soluble)Work lamp (LED)

Full enclosure shieldingJack screws, foundation washers

Hand toolsDoor interlock (standard)

Lube monitor (A-1 + oil source pressure detector)OSP-P300L

NC operation panel, 15-in. color TFT (touch panel)Program storage; over 2 GBOperation buffer; over 2 MB

M-V12 radial45 to 6,000 min-1

PREX 7.5/4.3 kW (10/5.7 hp) (25 min/cont)

T

–

MY

840

SD*: 0.25 (0.34), RD*: 0.8 (1.08)1,955

3,050 x 1,900 (120 x 75)

Chuck

Drive

B kit: *1 E kit: *2 D kit: *3Hollow 10 in.

BB210A8

SS1881

Hollow 10 in.

B-210A8

SS1770

Hollow 12 in.

B-212A8

SS1881

Chucking Kit / Tooling KitModelSpeci�cations

Chuck

DriveSoft jaws, ASoft jaws, BHard jawsOD-IOD-IIID-H40DS MT No.1-H40DS MT No.2-H40DS MT No.3-H40DS MT No.4-H40BS 10-H40BS 12-H40BS 16-H40BS 20-H40BS 25-H40BS 32-H40Axial mill/drill unitRadial mill/drill unitDummy holderRevolving center MT 5*

Std ChuckingKit

Solid 10 in.N-10A8SS1770

LStd Tooling

Kit

426

1

22

Chucking Kit

BB kit: *1 E kit: *2 D kit: *3

5316361111222222

M

Chucking Kit

BB kit: *1 E kit: *2 D kit: *3

531624

1

2222222231

MY

Chucking Kit

BB kit: *1 E kit: *2 D kit: *3

531624

1

2222222231

LB4000 EX

* Not available for T model speci�cations

* SD: Side discharge, RD: Rear discharge

C

NC travelDead

quill MT 5

C

NC travelDead

quill MT 5

C

NC travelDead

quill MT 5

LB4000 EX (M)

Tool Interference Drawings

LB4000 EX (L)

LB4000 EX (MY)LB4000 EX (MY)

Axial mill/drill unit

OD-I, II

■ Chip conveyor types and application

Various chip conveyors

Note: Machine platform may be necessary depending on the type of conveyor.

Name

Application

Features

Shape

Hinge type Scraper type Magnet scraper type Hinge scraper type

● For castings

● Magnet scraper for sludge processing

● For steel ● For castings● For steel, castings,

nonferrous metal

● General use ● Suitable with sludge ● Not suitable for

nonferrous metals

● Filtration of long and short chips and coolant

15 16

Magnet

● Easy for maintenance ● Blade scraper

With drum �lter

78

ø207

ø257

ø266ø252

ø228

Max turning ø430

Max swing dia ø650

380 75

ø245ø234

ø207

30085

ø290

ø240

21519019035

ID-40

OD-II

OD-I

380 85 30060

14070

70

ø26

240

Max turning ø430

190

ø248

ø264

ø214

ø420

190

Max swing dia ø650

36.8

ø420

ø220

ø270 72

8

ø238

ø214

ø252

Axial drillEnd mill holder

Spindle centerRadial drillEnd mill holder

OD-I

OD-II

ID-H40,Axial mill/drill unit

ø237

ø252

ø214ø238

380190 190

ø237

ø220ø270

ø420

ø248

Axial mill/drill unit

*DBC: Distance between centers

ø214

ø264

ø420

4.7

27.9

OD-I

ID-40

OD-II

Max swing dia ø710

Max turning ø430

Spindlecenter

70

3535

ø260

ø250

ø40

60

ø250

57

ø530

ø245

ø650 (DBC 750)

Max swing

Max swing dia ø710

ø650 (DBC 750)

Max swing

300st240

230 35205300st

505

60

3 5

16.5

14.1

OD-IID-40

Max swing dia ø710

OD-II

Max turning ø480

Spindlecenter

Tooling System

LB4000 EX (L)

OD-I

V12 turret(460 across �ats)

(18.11)

● OD tool shank25 x 25 (1 x 1)

● Commercially available items

OD TurningID Turning

●Boring bar shank diameters

OD-II

Boring bar sleevesBS 8-H40BS 10-H40BS 12-H40BS 16-H40

BS 20-H40BS 25-H40BS 32-H40

ø 8ø10ø12ø16

ø20ø25ø32

ø5/16ø3/8ø1/2ø5/8

ø3/4ø1ø1-1/4

● Boring bar ø40(ø1-1/2)

● DrillMT 1MT 2MT 3MT 4

* ID-H40

Drill sleeve DS MT 1-H40DS MT 2-H40DS MT 3-H40DS MT 4-H40

LB4000 EX (M/MY)

Axial mill/drill unit

Dummy holder

V12 turret(380 across �ats)

(14.96)Radial

mill/drill unit

● Collets[ø4~26, ø1 mm pitch]

OD-I

OD-II

ID-H40 ● Commercially available items

Mill/DrillTurning

* Select an ID oil-hole toolholder base (optional) for oil-hole drills and boring bars.* LB400 same tooling, except for ID-H40.

Boring bar sleevesBS 10-H40BS 12-H40BS 16-H40

BS 20-H40BS 25-H40BS 32-H40

● Boring bar ø40 (ø1-1/2)

Drill sleeves DS MT 1-H40DS MT 2-H40DS MT 3-H40DS MT 4-H40

Select an ID oil-hole toolholder base (optional) for oil-hole drills and boring bars.New tooling not compatible with LB400-M.

* *

17 18

Headstock

Chucking

Gauges

Tailstock

Steadyrests

Lubrication

Big-Bore spindleSpindle bearing ID ø160 JIS A2-11 30 to 3,000 min-1 Spindle motor 37/30 kW (30 min/cont)

Chuck auto open/close con�rmChuck high/low pressure switchWork stopper in spindleIn-process gauging systemTouch setter M (manual), A (auto)Revolving center: MT 5Tailstock taper: Built-in center MT 4 Threaded center MT 4Tailstock taper: Built-in center MT 5 Threaded center MT 5High thrust specsTailstock thrust hi/low switch specsRollers (�xed position)Auto steadyrest (self-centering)Lube monitor B-2, C-1, C-2

Shower coolant A, BSpindle ID coolant A, BCoolant pump, 0.8 kWCoolant high pressure switchCoolant sludge controlCoolant detection; �ow volume, levelMist collectorCoolant gunAir blow (blast; chuck, center, spindle ID, turret)Front door auto open/closeChip pan side rearChip conveyor side rear discharge L, HChip bucket L, HAir purge, double wiperBar feederBar pullerNC robotsNC loaders

Optional Specs & AccessoriesCoolant

AirCoverChip handling *1

DustproofingAutomation

Front doorwith large window *2

Working Ranges

LB4000 EX@ (M, MY)

LB4000 EX@ (L)Floor Space

Thermo-Friendly Concept

Energy-saving function Energy-saving technology

Environmental economic effect of Thermo-Friendly Concept

( ) for C x 1500, [ ] for C x 2000; with different tailstock (minor dimensions may vary)

( ) for C x 1500, [ ] for C x 2000; with different tailstock (minor dimensions may vary)

Small machine footprint of 5.8 m2 for effective use of plant floor space.

Some photos include parts that differ from speci�cations

*When speci�cation for distance between centers is 750

With a mere 5.8 m2 (62 ft2) required for installation, workpieces of up to ø480 x 750 mm (18.9 x 29.53 in.) can be accommodated. This enables maximum use of limited factory space.

In environments with normal temperature changes, machining accuracies equivalent to those in temperature-controlled rooms are achieved.As long as the operator is comfortable, there is no need for air conditioning to ensure accuracy.

■ Amount of energy consumed for temperature-controlled room

Per year Savings of approximately 135,000 kWh Prevents CO2 emissions equivalent to about 7,500 beech trees

(*1)

Ecology & EconomyMachines and technology to achieve eco-friendly "monozukuri" *2

■ Uses PREX motor· Energy-saving control during no-load turning

· Lightweight, low inertia, etc.

■ High-performance single CPU configuration

■ Energy savings from simple design

■ Energy-saving display device

Energy-saving servo, NC units

■ Power-saving functionPeripheral device power shutoff after completion of automatic operation

· Spindle cooler, etc.

Energy-saving function

*1. Calculations are examples only, and may differ from actual circumstances. Temperature-controlled room capacity: 10 m × 10 m × H3 m ±2ºC *2. Monozukuri: Making things—better than ever

Energy-savings from PREX motorPREX motor developed by Okuma eliminates rotor winding and achieves small size and efficiency.High output, low heat generation spindle drive system is used.

■ Energy efficiency 5% increase ■ Power consumption 10% decrease(compared with previous model) (compared with previous model)

3,050 mm(120 in.)

1,900 mm(75 in.)

*1. Rear discharge is not available with C × 1500, C × 2000 speci�cations*2. Standard for the European market.

OD-I ID-H40

OD-I Axial mill / drill unit

5869 6

290

230

60

MA

X 5

05(M

IN 2

05)

915 (1665) [2315]

Turret rotation center

102 46840 (1590) [2240] Z-axis travel

300 21

585

w/o revolving center and release nut

1147 (1897) [2547]1001 (1751) [2401]

780 (1530) [2180]773 (1523) [2173]

X-axis travel

6346

ø254

22

20

Tailstock retract limit43

[101]

146152

238418 18N-10A0801A

w/ revolving center

24020127

5853

34

20

1147 (1897) [2547] 43[101]

1001 (1751) [2401] 146780 (1530) [2180]168

600 (1350) [2001]

926 (1676) [2326]

102 46

N-10A0801A

ø254

254

X-axis travel

Tailstock retract limit

840 (1590) [2240] Z-axis travel

300

11033

300

190

110

215 18

728

85

MA

X 5

15(M

IN 2

15)

Turret rotation center

31

ø254

5829

1147 (1897) [2547]1001 (1751) [2401]

780 (1530) [2180]787 (1537) [2187]

192

727 (1477) [2127]

102 46

N-10A0801A

w/ revolving center

w/o revolving center and release nut

110

300

2015

4945

57

275

190

85

240

60

MA

X 5

15(M

IN 2

15)

Tailstock retract limit43

[101]146

113

Turret rotation center

27853

926 (1676) [2326]

X-axis travel

840 (1590) [2240] Z-axis travel

50

7

300

230

70

MA

X 5

05(M

IN 2

05)

915 (1,665) [2,315]

Turret rotation center

X-axis travel

840 (1590) [2240] Z-axis travel

4020127

5868

Tailstock retract limit1147 (1897) [2547] 43

[101]

1001 (1751) [2401] 146780 (1530) [2180]153

656(1403) [2056] 144 239

102 46

N-10A0801A

ø254

300 20

5 166

3920 7595

(height from �oorapprox 1,935)

Power inlet

4,038

3,453 585

1,050

0.8KW

427

844

2,02

81,

440

588

700

499

971

675

2,41

5

Coolant �lter

Coolant pump

NC

Hydraulic unit

Chuck open/close foot switch

600(800)

1,345 61

5,515

6,445 (6,935)

53

710(1,022)

930(1,420)

220 (398)

700

(1,0

00)

822

(1,3

62)

500

30

(option)Chip bucket

(option)

Chip conveyor(side discharge)

Tailstock

V12 turret

Operationpanel

Headstock

Hyd chuckpressurevalve

Maintenancespace

2,505

675

585 1,470700

243

2,145

1,087383

360

1,035892143

2,37

01,

220

1,15

0

805

345

770

450

514

5

Space for sidetank removal

(2,0

33)

1,050 2,650 375100

499

Hydraulic unit

Power inlet (height from�oor approx 1,935)

1,03

984

41,

900 1,44

046

055

0

NC

Space for sidetank removal

500

Maintenancespace

Door open

5,005 (5,495)

830(1,320)

705(1,017)

125 (303)

700

(1,0

00)

(800)600

4,175

1,015 61 1,678

Headstock

V12M turret

Operationpanel

Tailstock

Chip bucket(option)

53

460240

460

1,470

1,930

2,390

1,24

951

475

9

1,15

01,

220

152

2,52

2

1,015 92861

1,050 1,900100

Hydraulic unit

Space for sidetank removal

844

1,90

0 1440

460

550

NC

Power inlet (height from�oor approx 1,935)

Door open2,920 (3,320)

620(1,020)

786(1,098)

234 (322)

460240 1,440 400

1850

1,900

700

(1,0

00)

755

(1,2

95)

(800)6001,

150

770

365

35

1,92

040

0

2,32

0 Chip bucket(option)

Space for rear chipconveyor removal

500

Maintenancespace

3,980 (4,470)

930(1,420)

805

(1,117)

125 (303)

700

(1,0

00)

822

(1,3

62)

(800)600

3,050

Headstock

V12M turret Operationpanel

Tailstock

Chip bucket(option)

53

600(800)

1,345 61

5,515

6,345 (6,835)

53

702 (1,014)

830 (1,320)

128 (306)

700

(1,0

00)

822

(1,3

62)

500

2,327

(option)

Chip conveyor(side discharge)

Tailstock

V12 turret

Operationpanel

Headstock

Maintenancespace

Door open

4,038

3,453 585

1,050

0.8KW

427

844

2,02

81,

440

588

700

499

971

675

Coolant pump

NC

(height from �oor approx 1,935)

Power inlet

Hydraulic unit

Coolant �lter

2,505

675

585 1,4702,055700

243

2,1453601,035892143

2,00

585

51,

150

514

5

Space for sidetank removal

100 1,050

NC

844

1,90

01,

039

1,44

0

499

(2,0

33)

460

550

3,0252,650 375

Power inlet (height from�oor approx 1,935)

700

(1,0

00)

822

(1,3

62)

1,678V12M turret Operation panel

Tailstock

Chip bucket(option)

Headstock

1,015

4,175 830(1,320)

705(1,017)

53

600(800)

125 (303)

500 5,005 (5,495)

Maintenancespace

61Door open

2157

1,15

01,

249

514

394

855

152

550

460 1,930

1,470460

2,390

240

Space for side tank removal

1,95

51,

150

770

755

(1,2

95)

700

(1,0

00)

460

240

1,440 400 620(1020)

1,900 786 (1098)

2,920 (3,320)

Chip bucket(option)

600(800)

1850Space for rear chipconveyor removal

234 (322)

V12 turret

3,050

3,980 (4,470)

930 (1,420)

805 (1,117) 125 (303)82

2(1

,362

)

700

(1,0

00)

500

Maintenancespace

Chip bucket(option)

(option)

Chip conveyor(side discharge)

HeadstockLube tank

Operationpanel

Tailstock

Hyd chuckpressure valve

600(800)

50

1,015

100 1,050 1,900

550

1,90

084

4

92861

Power inlet (height from�oor approx 1,935)

(rear discharge)Coolant pump 0.8 KW

Hydraulic unitNC

1,44

046

0

Door open

(option)

Chip conveyor(rear discharge)

Chip conveyor(side discharge)(option)

(option)Chip bucket

(option)

Chip conveyor(side discharge)

(option)

Chip conveyor(rear discharge)

822

(1,3

62)

(option)

Chip conveyor(side discharge)

2,327Door open

Dimensional Drawings

LB4000 EX@(L / M) Specifications × 750

LB4000 EX@(L / M) Specifications × 1,500

LB4000 EX@(MY) Specifications × 2,000

19 20

( ) dimensions for H chip conveyor ( ) dimensions for H chip conveyor

LB4000 EX@(MY) Specifications × 1,500

LB4000 EX@(MY) Specifications × 2,000

LB4000 EX@(MY) Specifications × 750

21 22

A simple function key operation is all it takes to shift a zero offset to either the left or right end of a workpiece. The required zero offset will be calculated automatically based on jaw and workpiece lengths. (when the tool offset is set with reference to the turret tool mounting surface)

Templates like this make it easy to set required jaw shape, tool, and cutting conditions.

Part programming not required to do this.

Easy Operation

OSP-P300L Okuma Sampling Path Control

Operation screen split into four displays

Forming soft jaws Zero offsets

Simultaneous display includes setup work, current position needed in con�rming movement in trial machining, NC program, and graphic simulation.

Tool registration

Register data for all of your tools. Since the registered tool data is also used by Okuma auto programming (Advanced One-Touch IGF) and a collision check function (Collision Avoidance System), this screen will complete the entire registering process.

When loading a tool in the machine, simply select it from among the registered tools.ATC manual operation does not require inputting the tool number. Just select the tool from the list and press the function key.

Okuma Control[for Lathes]

OSP-P300LBasic Specs

Operations

Communications/NetworksHigh speed/accuracy

Turning: X, Z simultaneous 2-axis, Multitasking: X, Z, C simultaneous 3-axisOSP full range absolute position feedback (zero point return not required)8-digit decimal, ±99999.999 to 0.001 mm (±3937.0078 to 0.0001 in.),0.001˚ Decimal:1 μm, 10 μm, 1 mm (0.0001,1 in.) (1˚, 0.01˚, 0.001˚)Override: 0 to 200%Direct spindle speed commands (S4) override 50 to 200%Constant cutting speed, optimum turning speed designateTool selection: 32 sets, tool offset: 32 sets15-inch color display operational panel, touch panelAutomatic diagnostics and display of program, operation, machine, and NC system problemsProgram storage: 2 GB, operation buffer: 2 MBProgram management, edit, multitasking, scheduled programs, �xed cycles, special �xed cycles, tool nose R compensation, M-spindle synchronized tapping,�xed drilling cycles, arithmetic functions, logic statements, trig functions, variables, branch statements, auto programming (LAP4), programming help“Single-mode operation” to complete a series of operationsAdvanced operation panel/graphics facilitate smooth machine controlMDI, manual (rapid traverse, manual cutting feed, pulse handle), load meter, operations help, alarm help, sequence, return, manual interrupt & auto return, threading slide hold, data I/O, chuck open/close during spindle rotation, spindle orientation (electric)Machining Management: machining results, machine utilization, fault data compile & report, external outputUSB ports, Ethernet, RS232C interface (1 channel)Hi-G control

ControlPosition feedbackMin / Max inputs

FeedSpindle control

Tool compensationDisplaySelf-diagnosticsProgram capacityPrograming

Easy Operation

MachineoperationsMacMan

Standard Specifications■

Optional Specifications

ItemKit Specs *1

New Operations

Advanced One-Touch IGF-L *2

Advanced One-Touch IGF-L Multitasking *2

Circular threading

Program notes

User task 2 I/O variables, 8 each

Common variables 1,000 sets (Std: 200 sets)

Thread matching (spindle orientation required)

Threading slide hold (G34, G35)

Variable spindle speed threading (VSST)

Inverse time feed

Spindle synchronized tapping (rigid tapping)

Helical cutting (within 360 degrees)

Real 3-D simulation

Cycle time over check

Load monitor (spindle, feed axis)

Load monitor no-load detection (load monitor ordered)

Tool life management

Tool life warning

Operation end buzzer

Chucking miss detection

NC operation monitor (counter, totaling)

NC work counter (stops at full count with alarm)

Status indicator (triple lamp) Type C [Type A, Type B]

In-process work gauging

Z-axis automatic zero offset by touch sensor

C-axis automatic zero offset by touch sensor

Gauge data output

Post-processwork gauginginterface

Touch setter [M, A]

Item

External Input/Output and Communication Functions

Additional RS-232-C channel

2 channels (Std 1 channel)

DNC link

USB (additional)

Auto power shutoff MO2, alarm

Warmup function (by calendar timer)

Tool retract cycle

Okuma loader (OGL) interface

Bar feeders

Cycle timereduction *3

1/10 μm control *3

Pitch error compensation

AbsoScale detection *3

Hi-Cut Pro

Super-NURBS

Collision Avoidance System (CAS)

One-Touch Spreadsheet

Machining Navi L-gHarmonic spindle speed control (HSSC)

Spindle dead-slow cutting

Spindle speed setting

Spindle S command 0.1 min-1

Manual cutting feed

Spindle power peak cutting

Short circuit breaker

External M signals [2 sets, 4 sets, 8 sets, ( )]

Edit interlock

OSP-VPS (virus protection system)

■

Programming

10 sets

50 sets

100 sets

Tool compensation 64 sets

Tool compensation 96 sets

Tool compensation 200 sets

Tool compensation 999 sets

Work coor-dinate systemselect

Tool compen-sation(Std: 32 sets)

Monitoring

Count only

Cycle stop

Start disabled

Power ON

Spindle rotation

NC operating

Milling machinespecs

Coordinate convert

Pro�le generate

Flat turning

3-dimensional coordinate conversion

Work counters

Hour meters

Measuring

File output

Set levels (5-level, 7-level)

BCD

RS-232-C (dedicated channel)

Included in machine specs

Included in machine specs

Included in machine specs

*1. NML: Normal, 3D: Real 3D simulation, OT-IGF: One-Touch IGF, OTM: One-Touch M

E: Economy, D: Deluxe

*2. Real 3-D Simulation included

*3. Engineering discussions required.

Note: Triangle items for M function (milling tool) machines only.

Externalprogramselections

High-Speed/High-Accuracy Functions

Other Functions

DNC-T3

DNC-C/Ethernet

DNC-DT

2 additional ports possible

A (pushbutton) 8 types

B (rotary switch) 8 types

C (digital switch) BCD, 2-digit

C2 (external input) BCD, 4-digit

Type B (machine)

Type C (robot and loader)

Type D

Type E

Bar feeder

Interface only

Operation time reduction

Chuck open/close during spindle rotation

Tailstock advance/retrat during spindle rotation

Linear axis

Linear axis + rotary axis

Included in machine specs

Including loader specs

OTM Kit Specs *13D

E D E D E D E D

OT-IGFNML

Automation/Untended Operation

OT-IGF OTMNML 3D

DE D E D E DE

This product is subject to the Japanese government Foreign Exchange and Foreign Trade Control Act with regard to security controlled items; whereby Okuma Corporation should be noti�ed prior to its shipment to another country.

, OGUCHI-CHO, NIWA-GUN, AICHI 480-0193, JAPAN • TEL (0587) 95-7825 • FAX (0587) 95-6074

To protect your factory and equipment from �re and assure continued safe operation, observe the following �re safety precautions whenever you operate machinery. Whenever possible, avoid the use of oil-based coolants for cutting operations. Sparks caused by hot chips, tool friction, and grinding can cause �res. Always observe the following safety measures to ensure safe operation when machining �ammable materials or when performing dry machining.

Before machining any material designated by law as a �ammable substance, e.g., plastic, rubber, wood, acquaint yourself with the special characteristics of the material in terms of �re prevention, and observe the precautions given in (2) above to ensure safe operation. Example: When machining magnesium, there is a danger that magnesium chips and water-soluble coolants will react to produce hydrogen gas, resulting in an explosive �re if any chip should ignite.

Dry machining is a �re hazard because workpieces, tools, and chips are not cooled. To ensure safe operation, do not place any �ammable objects near the machine and do not allow chips to over accumulate. In addition, be sure to check cutting tools to make sure of their service life and the condition of the tool edge, and observe the precautions regarding oil-based coolants given in (2) above.

(1) Use nonflammable cutting fluid coolant. (2) When the use of an oil-based coolant is unavoidable:

Before you begin machining, check cutting tools to make sure of their service life and the condition of the tool edge, and choose cutting conditions that will not cause a �re. Periodically clean the coolant �lter to maintain suf�cient coolant discharge, and frequently verify that coolant is discharging normally. Take measures to control the outbreak of �re: Place a �re extinguisher near the machine, have an operator constantly monitor operation, and install an automatic �re extinguishing system. Do not place �ammable materials near the machine.Do not allow chips to over accumulate. Periodically clean the inside of the machine and the area surrounding it.Check that the machine is operating normally. Never run the machine unattended. Since an automatic �re extinguishing system and other peripherals are needed for grinding operations, please let us know as soon as possible if you plan to perform such operations.

Fire Safety Precautions

1. Oil-based coolant

2. Precautions regarding machining of potentially flammable materials

3. Dry machining

•

•

•

•

•

•

•

•

•

When using O

kuma p

roducts, alw

ays read the safety p

recautionsm

entioned in the instruction m

anual and attached

to the prod

uct.

� The sp

eci�cations, illustrations, and d

escriptions in this b

rochure vary in different m

arkets and

are subject to change w

ithout notice.P

ub N

o. SP

AC

E TU

RN

LB4000 E

X -E

-(11a)-300 (Feb 2014)

1-Sad

dle C

NC

Lathe