USE OF ENERPAC HYDRAULIC EQUIPMENT

PRESENTED BY: HARDISH TRIVEDI

Pressure applied at any point upon a confined liquid, is transmitted equally in all the directions & acts perpendicular to the surfaces with equal force.

PASCAL’S LAW

WORKING PRINCIPLE OF HYDRAULICS

SINGLE ACTING CYLINDER

SINGLE ACTING SPRING RETURN CYLINDER

Advance Port

DOUBLE ACTING PUSH AND PULL TYPE SOLID CYLINDER

DOUBLE ACTING PUSH AND PULL TYPE HOLLOW CYLINDERS

TYPES OF PUMPS

• Hand pumps.

• Electric Pumps.

• Air-Driven pumps.

• Battery and gas

powered pumps.

- Max. Operating Pressure = 10,000 psi(700 Kg/Cm2)

- Length availability = 2 to 50 ft.( 0.6m to 15m)

- Inside diameter = 0.25” to 0.38”(6mm to 9.5mm)

- End connections = 1/4” NPT

= 3/8” NPT

Note : When using greater hose lengths, it is sometimes

necessary to fill the pump reservoir after filling the hoses.

HIGH PRESSURE HYDRAULIC HOSES

1/4” COUPLER

- For use with small cylinders and hand

pumps.

- Includes female dust caps.

3/8” High Flow couplers

- Standard accessory on most of Enerpac

Cylinders

- Includes “2-in-1” dust cap for use on male

female coupler halves.

HYDRAULIC COUPLERS

3/8” High Flow couplers

1/4” COUPLER

- Hydraulic Cylinder : Applies Hydraulic Force.- Cylinder Base Plate : For application like lifting

where additional cylinder stability is required.

- Pump : Develops hydraulic pressure.- Hose : Transport hydraulic fluid.- Male Coupler : For quick connection of the

hose to system components.- Female Coupler : For quick connection of the

hose end to the system components.

- Gauge : To monitor pressure of the hydraulic circuit.

BASIC SYSTEM SET-UP

SIMPLE HYDRAULIC CIRCUIT FOR SINGLE ACTING CYLINDER

SIMPLE HYDRAULIC CIRCUIT FOR DOUBLE ACTING CYLINDER

ADVANCE - HOLD - RETRACT.Single Acting Double Acting

PULL CYLINDERS.

PULL CYLINDER - APPLICATION

Cylinders : Capacity/ Stroke Price

1. RC- 1006 100 MT/ 6” Rs. 45,000/-2. RCS-502 50 MT/ 2” Rs. 25,000/-3. RCS-1002 100 MT/ 2” Rs. 35,000/-

4. CLR-2006 200 MT/ 6” Rs.1,10,000/-

Pumps :1 Hand Pump P-464 Rs. 45,000/-2 Motorized Pump PER-3410E Rs.1,60,000/-

LIST OF HIGH PRESSURE HYDRAULIC EQUIPMENT COMMONLY USED AT

L&T HAZIRA WORKS

RC-1006

RCS-502

RCS-1002

CLR-2006

Hand Pump

Motorized pump PRESENTED BY: HARDISH

TRIVEDI

• Model No. = RC-1006

(Single acting)

• Cylinder Effective Area = 20.65 in2(133 sq cm)

• Oil Capacity = 136.91 in3(2.25 liter)

• Collapsed Height = 14.06 in.

(35.7cm)

• Extended Height = 20.69 in.

(52cm)

• Weight = 132 lbs.(60kgs)

SPECIFICATIONS OF RC-1006 CYLINDER

• Model No. = RC-502 (Single

acting)

• Cylinder Effective Area = 9.63 in2 (63 sq cm)

• Oil Capacity = 22.91 in3 (0.375 liter)

• Collapsed Height = 4.81 in. (12cm)

• Extended Height = 7.10 in. (18cm)

• Weight = 24 lbs. (10.9kgs)

SPECIFICATIONS OF RCS-502 CYLINDER

• Model No.= RCS-1002 (Single acting)

• Cylinder Effective Area = 19.61 in2(126.5 sq cm)

• Oil Capacity = 44.25in3 (0.725 liter)

• Collapsed Height = 5.56 in. (14cm)

• Extended Height = 7.81 in. (19.8cm)

• Weight = 50 lbs. (22.6kgs)

SPECIFICATIONS OF RCS-1002 CYLINDER

• Model No.= CLR - 2006 (Double acting)

• Cylinder Effective Area= 44.31 in2 (Push) (285.8 sq cm)

• Cylinder Effective Area= 19.69 in2 (Pull ) (127 sq cm)

• Oil Capacity = 244 in3 (Push) (4 liter)

• Oil Capacity = 116 in3 (Pull) (2 liter)

• Collapsed Height = 12.21 in. (31 cm)

• Extended Height = 18.11 in.. (46 cm)

• Weight = 203 lbs. (92kgs)

SPECIFICATIONS OF CLR-2006 CYLINDER

KEY TO CYLINDER DIMENSIONS.

• A = Collapsed Height

• B = Extended height

• C = Cyl. Body length

• D = Cylinder outside

diameter.

• D1=Cylinder inside

diameter• T= Cylinder Thickness

(D-D1)

• F = Plunger Rod

Diameter.

• G = Oil inlet thread

• H = Cylinder Bottom

to advance port.

• I = Cylinder top to

retract Port.

• J = Saddle Outside

Diameter.

• K = Cylinder Rod Protrusion at

collapsed height.

• L = Plunger center to side of

• M = Mounting holes to Plunger

Center

• N = Length of smaller

cylinder Part.

• Model No. = P- 464

• Oil Capacity = 453 in3 (7.42 liter)

• Pressure Rating = 10,000 psi.(700kg/cm2)

• Max. handle effort = 110 lbs. (49.9 kgs)

• Weight = 61 lbs. (27.7 kgs)

SPECIFICATIONS OF HAND - PUMP

• Model No. = PER-3410

• Type = Double Acting

• Valve function = Adv/hold/retract

• Reservoir Oil Cap.= 10 gallon.

• Motor HP = 1.5

• Pressure Rating = 10,000 psi.

• Flow Rate = 60 to120 in3/min. ( 1 to 2 liter/min.)

• Weight = 246 lbs.

SPECIFICATIONS OF MOTORISED-PUMP

( cm3)

(700 kg/ cm2)

( 112 kgs)

• Total force required in Tons.

• No. of cylinders required.

• Force per cylinder in Tons.

• Stroke required.

• Single / Double acting

• Type of plunger required.

• Collapsed height required.

• Cylinder attachments.

How to Select Hydraulic Cylinder?

• Single or double

acting operation.

• 2 way valve for single

acting application.

• 4 way valve for

double acting

application.

How to Select Pumps?

A. Hand Pump

• Duty cycle.

• Required usable oil

capacity.

• Available voltage

• Lifting Speed.

• Type of Control

• Type of Actuation

/Function.

How to Select Pumps?

A. Electric Pump

• No. of Hoses & Length

required.

• Manifold or Tee

• Extra hose per Manifold.

• Gauges ( PSI )

• Fittings, Pressure relief valve

& Load holding valves.

• Hydraulic Oil (Servo-68)

How to Select System Components?

MULTILIFTING APPLICATION THROUGH COMMON MANIFOLD

The amount of force a

hydraulic cylinder can

generate is equal to the

hydraulic pressure times

the effective area of the

cylinder

Pressure :

1 PSI = 0.069 Bar

1 Bar = 14.50 PSI

1 kPa = 0.145 PSI

Volume :

1 In3 = 16.387 cm3

1 Cm3 = 0.061 in3

1 Liter = 61.02 in3

1 Liter = 0.264 gal

MEASUREMENTS

Weight :

1 Pound = 0.4536 Kgs.

1 Kg = 2.205 lbs...

1 Metric Ton = 2,205 lbs...

1 Ton = 2,000 lbs...

1 Ton MT = 1000 Kgs.

MEASUREMENTS

Example 1. An RCS-502 Cylinder with 9.63 in2 effective area operating at 8000 psi. will generate what force?

Force = Pressure x Effective Area. = 8000 x 9.63

= 77040 lbs. (35 ton)Example 2. An RCS-1002 Cylinder lifting 14000 lbs. load with effective area of 19.67 in2, what is the operating pressure require?

Force = Pressure x Effective Area. 14000 = Pressure x 19.67

Pressure = 711.75 psi. (50 kg/cm2)

CALCULATIONS OF ACTUAL LOAD

WEIGHT MEASUREMENT BY

HYDRAULIC JACKS

OFFSET CORRECTION

42PRESENTED BY: HARDISH TRIVEDI

ENERPAC JACK & PUMP SELECTION

• Use only genuine

Hydraulic oil. The use

of any other fluid may

affect our cylinder,

pumps and coupler life.

• For more details ask oil

specification chart from

maintenance dept.

HYDRAULIC OIL

Dos & Don’ts

• Couplers should be pressurized only when completely connected.

• Always keep Plastic dust caps on coupler head.

HIGH PRESSURE HYDRAULIC COUPLERS

• Thread Sealer : To seal NPT threads use Teflon paste.

• When using: TeflonTape, apply the tape one thread from the end of fitting to prevent it from winding up in the hydraulic system.

HIGH PRESSURE HYDRAULIC COUPLERS

• Do not exceed maximum pressure of

10,000 psi.

• Do not handle hoses which are under

pressure.

• When using longer hose length, it is

sometimes necessary to fill the pump

reservoir after filling the hoses.

HIGH PRESSURE HYDRAULIC HOSES

IMPROPER STORAGE (JACK)

IMPROPER STORAGE (PUMP)

LACK OF MAINTENANCE

60PRESENTED BY: HARDISH TRIVEDI

USE OF ENERPAC HYDRAULIC EQUIPMENT

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