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1
USE OF ENERPAC HYDRAULIC EQUIPMENT
PRESENTED BY: HARDISH TRIVEDI
2
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
PRESENTED BY: HARDISH TRIVEDI
3
WORKING PRINCIPLE OF HYDRAULICS
PRESENTED BY: HARDISH TRIVEDI
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SINGLE ACTING CYLINDER
PRESENTED BY: HARDISH TRIVEDI
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SINGLE ACTING SPRING RETURN CYLINDER
Advance Port
PRESENTED BY: HARDISH TRIVEDI
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DOUBLE ACTING PUSH AND PULL TYPE SOLID CYLINDER
PRESENTED BY: HARDISH TRIVEDI
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DOUBLE ACTING PUSH AND PULL TYPE HOLLOW CYLINDERS
PRESENTED BY: HARDISH TRIVEDI
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TYPES OF PUMPS
• Hand pumps.
• Electric Pumps.
• Air-Driven pumps.
• Battery and gas
powered pumps.
PRESENTED BY: HARDISH TRIVEDI
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- 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
PRESENTED BY: HARDISH TRIVEDI
10
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
PRESENTED BY: HARDISH TRIVEDI
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3/8” High Flow couplers
PRESENTED BY: HARDISH TRIVEDI
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1/4” COUPLER
PRESENTED BY: HARDISH TRIVEDI
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- 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
PRESENTED BY: HARDISH TRIVEDI
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SIMPLE HYDRAULIC CIRCUIT FOR SINGLE ACTING CYLINDER
PRESENTED BY: HARDISH TRIVEDI
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SIMPLE HYDRAULIC CIRCUIT FOR DOUBLE ACTING CYLINDER
PRESENTED BY: HARDISH TRIVEDI
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ADVANCE - HOLD - RETRACT.Single Acting Double Acting
PRESENTED BY: HARDISH TRIVEDI
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ADVANCE - HOLD - RETRACT.Single Acting Double Acting
PRESENTED BY: HARDISH TRIVEDI
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ADVANCE - HOLD - RETRACT.Single Acting Double Acting
T
B
PRESENTED BY: HARDISH TRIVEDI
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PULL CYLINDERS.
PRESENTED BY: HARDISH TRIVEDI
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PULL CYLINDER - APPLICATION
PRESENTED BY: HARDISH TRIVEDI
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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
22
• 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
PRESENTED BY: HARDISH TRIVEDI
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• 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
PRESENTED BY: HARDISH TRIVEDI
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• 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
PRESENTED BY: HARDISH TRIVEDI
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• 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
PRESENTED BY: HARDISH TRIVEDI
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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)
A
D
C
B
D1
PRESENTED BY: HARDISH TRIVEDI
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• F = Plunger Rod
Diameter.
• G = Oil inlet thread
• H = Cylinder Bottom
to advance port.
• I = Cylinder top to
retract Port.
• J = Saddle Outside
Diameter.
KEY TO CYLINDER DIMENSIONS.
PRESENTED BY: HARDISH TRIVEDI
28
• K = Cylinder Rod Protrusion at
collapsed height.
• L = Plunger center to side of
base.
• M = Mounting holes to Plunger
Center
• N = Length of smaller
cylinder Part.
KEY TO CYLINDER DIMENSIONS.
PRESENTED BY: HARDISH TRIVEDI
29
• 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
PRESENTED BY: HARDISH TRIVEDI
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• 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)
PRESENTED BY: HARDISH TRIVEDI
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• 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?
PRESENTED BY: HARDISH TRIVEDI
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• 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
PRESENTED BY: HARDISH TRIVEDI
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• Duty cycle.
• Required usable oil
capacity.
• Available voltage
• Lifting Speed.
• Type of Control
• Type of Actuation
/Function.
How to Select Pumps?
A. Electric Pump
PRESENTED BY: HARDISH TRIVEDI
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• 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?
PRESENTED BY: HARDISH TRIVEDI
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MULTILIFTING APPLICATION THROUGH COMMON MANIFOLD
PRESENTED BY: HARDISH TRIVEDI
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The amount of force a
hydraulic cylinder can
generate is equal to the
hydraulic pressure times
the effective area of the
cylinder
FORCE
PRESENTED BY: HARDISH TRIVEDI
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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
PRESENTED BY: HARDISH TRIVEDI
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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
PRESENTED BY: HARDISH TRIVEDI
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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
PRESENTED BY: HARDISH TRIVEDI
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WEIGHT MEASUREMENT BY
HYDRAULIC JACKS
PRESENTED BY: HARDISH TRIVEDI
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OFFSET CORRECTION
PRESENTED BY: HARDISH TRIVEDI
42PRESENTED BY: HARDISH TRIVEDI
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ENERPAC JACK & PUMP SELECTION
PRESENTED BY: HARDISH TRIVEDI
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• 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
PRESENTED BY: HARDISH TRIVEDI
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Dos & Don’ts
PRESENTED BY: HARDISH TRIVEDI
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Dos & Don’ts
PRESENTED BY: HARDISH TRIVEDI
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Dos & Don’ts
PRESENTED BY: HARDISH TRIVEDI
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Dos & Don’ts
PRESENTED BY: HARDISH TRIVEDI
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Dos & Don’ts
PRESENTED BY: HARDISH TRIVEDI
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Dos & Don’ts
PRESENTED BY: HARDISH TRIVEDI
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Dos & Don’ts
PRESENTED BY: HARDISH TRIVEDI
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Dos & Don’ts
PRESENTED BY: HARDISH TRIVEDI
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• Couplers should be pressurized only when completely connected.
• Always keep Plastic dust caps on coupler head.
HIGH PRESSURE HYDRAULIC COUPLERS
PRESENTED BY: HARDISH TRIVEDI
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• 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
PRESENTED BY: HARDISH TRIVEDI
55
• 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
PRESENTED BY: HARDISH TRIVEDI
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IMPROPER STORAGE (JACK)
PRESENTED BY: HARDISH TRIVEDI
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IMPROPER STORAGE (PUMP)
PRESENTED BY: HARDISH TRIVEDI
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LACK OF MAINTENANCE
PRESENTED BY: HARDISH TRIVEDI
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LACK OF MAINTENANCE
PRESENTED BY: HARDISH TRIVEDI
60PRESENTED BY: HARDISH TRIVEDI