Hydra-Pac Synchronous Power Units

  • Pressure gauges and pressure reliefs on each circuit
  • Manually operated master control valve and individual circuit control valves
  • Features include a steel safety guard to protect the hydraulic table and valves, lifting lugs, forklift pockets, wheels, and a braking handle

Technical Specifications

Diesel Engine

Model Number 20-2-4D 48-6-6D 59-8-8D
No. of Advance Ports 4 6 8
No. of Retract Ports 4 6 8
Engine Power 25 hp 48 hp 59 hp
Flow Rate (All Ports) 0.5 gal/min 1.0 gal/min 1.0 gal/min
Flow Rate (Paired Ports)* 1.0 gal/min 2.0 gal/min 2.0 gal/min
Usable Oil Volume 18 gal 18 gal 18 gal
Maximum Operating Pressure 10,000 psi 10,000 psi 10,000 psi
Length 84" 104" 104"
Width 42" 42" 42"
Height 56" 56" 56"
Weight 2050 lb 2650 lb 2675 lb

*On Hydra-Pac power units, ports can be combined in pairs to double the available flow rate

Propane Engine

Model Number 23-2-4P 48-6-6P 59-8-8P
No. of Advance Ports 4 6 8
No. of Retract Ports 4 6 8
Engine Power 31 hp 48 hp 59 hp
Flow Rate (All Ports) 0.5 gal/min 1.0 gal/min 1.0 gal/min
Flow Rate (Paired Ports)* 1.0 gal/min 2.0 gal/min 2.0 gal/min
Usable Oil Volume 18 gal 18 gal 18 gal
Maximum Operating Pressure 10,000 psi 10,000 psi 10,000 psi
Length 84" 104" 104"
Width 42" 42" 42"
Height 63" 63" 63"
Weight 1920 lb 2650 lb 2675 lb

*On Hydra-Pac power units, ports can be combined in pairs to double the available flow rate

Electric Motor

Model Number 15-1.5-4E 30-3-6E 40-6-8E
No. of Advance Ports 4 6 40-6-8E
No. of Retract Ports 4 6 8
Motor Power 15 hp 30 hp 40 hp
Voltages Available† 230/460 V – 60 Hz – 3 – phase
575 V – 60 Hz – 3 – phase
208/415 V – 60 Hz – 3 – phase
Variable Frequency Drive VFD15 VFD30 VFD40
Flow Rate (All Ports) 0.4 gal/min 0.7 gal/min 0.8 gal/min
Flow Rate (Paired Ports)* 0.8 gal/min 1.4 gal/min 1.6 gal/min
Usable Oil Volume 18 gal 18 gal 18 gal
Maximum Operating Pressure 10,000 psi 10,000 psi 10,000 psi
Length 84" 104" 104"
Width 42" 42" 42"
Height 56" 56" 56"
Weight 1915 lb 2550 lb 2650 lb

†Other voltage options may be available upon request
*On Hydra-Pac power units, ports can be combined in pairs to double the available flow rate

Diesel Engine

Model Number 20-2-4D 48-6-6D 59-8-8D
No. of Advance Ports 4 6 8
No. of Retract Ports 4 6 8
Engine Power 18.5 kW 36 kW 44 kW
Flow Rate (All Ports) 1.9 L/min 3.8 L/min 3.8 L/min
Flow Rate (Paired Ports)* 3.8 L/min 7.6 L/min 7.6 L/min
Usable Oil Volume 68 L 68 L 68 L
Maximum Operating Pressure 700 bar 700 bar 700 bar
Length 2.13 m 2.64 m 2.64 m
Width 1.07 m 1.07 m 1.07 m
Height 1.42 m 1.42 m 1.42 m
Weight 930 kg 1200 kg 1210 kg

*On Hydra-Pac power units, ports can be combined in pairs to double the available flow rate

Propane Engine

Model Number 23-2-4P 48-6-6P 59-8-8P
No. of Advance Ports 4 6 8
No. of Retract Ports 4 6 8
Engine Power 23 kW 36 kw 44 kW
Flow Rate (All Ports) 1.9 L/min 3.8 L/min 3.8 L/min
Flow Rate (Paired Ports)* 3.8 L/min 7.6 L/min 7.6 L/min
Usable Oil Volume 68 L 68 L 68 L
Maximum Operating Pressure 700 bar 700 bar 700 bar
Length 2.13 m 2.64 m 2.64 m
Width 1.07 m 1.07 m 1.07 m
Height 1.60 m 1.60 m 1.60 m
Weight 870 kg 1200 kg 1210 kg

*On Hydra-Pac power units, ports can be combined in pairs to double the available flow rate

Electric Motor

Model Number 15-1.5-4E 30-3-6E 40-6-8E
No. of Advance Ports 4 6 40-6-8E
No. of Retract Ports 4 6 8
Motor Power 11 kW 22 kW 30 kW
Voltages Available† 230/460 V – 60 Hz – 3 – phase
575 V – 60 Hz – 3 – phase
208/415 V – 60 Hz – 3 – phase
Variable Frequency Drive VFD15 VFD30 VFD40
Flow Rate (All Ports) 1.4 L/min 2.5 L/min 2.8 L/min
Flow Rate (Paired Ports)* 2.8 L/min 5.0 L/min 5.7 L/min
Usable Oil Volume 68 L 68 L 68 L
Maximum Operating Pressure 700 bar 700 bar 700 bar
Length 2.13 m 2.64 m 2.64 m
Width 1.07 m 1.07 m 1.07 m
Height 1.42 m 1.42 m 1.42 m
Weight 870 kg 1150 kg 1200 kg

†Other voltage options may be available upon request
*On Hydra-Pac power units, ports can be combined in pairs to double the available flow rate

Support

Synchronous power units are simpler and safer than some other hydraulic pumps for jacking and skidding operations. First, they are designed for field conditions—no computers, wires, or transducers to set up or calibrate. The system is built with manual, mechanical controls. Second, they provide synchronous movement of cylinders on individual ports. The ports are not connected to each other and will give equal flow to each line regardless of the weight of the load or the pressure in that circuit.

One of the keys to the synchronous function is the split-flow, checkball piston pump. It incorporates multiple independent pistons driven by a common shaft, which ensures that each piston generates the same flow rate. Because of the relative incompressibility of oil and the sealing ability of the checkballs, the flow rate is virtually unaffected by the pressure.

Yes it is. Our Hydra-Pac power units are equipped with counterbalance valves on the pressure ports. These function to control the lowering of a cylinder that is under load by using the return-side pressure to open the valve. They act as a brake. When using single-acting jacks, there is no return line, and so we control the lowering speed by using a separate flow control. The flow control valves allow free flow in one direction (towards the cylinder) and control the flow in the other (back from the cylinder). The hydraulic hose is connected from the return port of the pump (with the flow control valve) to the cylinder port. The flow control valve is closed so that oil can only flow to the cylinder. When you wish to lower the cylinder, the flow control valve is opened gradually to allow oil to flow out of the cylinder and lower it in a controlled manner. Keep in mind that when lowering single-acting jacks, they will not necessarily be synchronized.

Looking  for
more support?

We can help.

Contact Us

Frequently Used Together

Hydraulic Jacks

We work with some of the top manufacturers of high-quality, field-proven hydraulic cylinders. We proudly offer a range of PowerTeam double-acting steel jacks and Orbit double-acting aluminum jacks for lifting and lowering applications. Other models may be available on request.

Climbing Jacks

Hydra-Jack™ Climbing Jacks incorporate a hydraulic cylinder inverted inside a specially designed load casing. As the jacks are extended and retracted, block piles are progressively built under the jack for a fast and safe means of raising or lowering large loads or structures.

How to Buy

Information on product purchasing, lead time, shipping, and more.

Call Us

+1-519-900-1450

Send a Message

Contact Us