Why Choose Our Hydraulic Power Pack for Jack？
- Each hydraulic power pack for jack will undergo a pressure test at 110% of the rated pressure, simulating a real lifting cycle.
- We use high-precision CNC centers to independently manufacture hydraulic manifold blocks, making the flow channels are free of burrs.
- F-class insulation, 100% pure copper coil motor, with excellent heat dissipation performance.
- Using precision double lip seals and O-rings, it can withstand extreme temperature differences and vibrations, avoiding oil leakage problems.
Your Reliable China Manufacturer of Hydraulic Power Pack for Jack
As a factory specializing in the production of hydraulic components, we have independent research and development, production, and assembly capabilities. We know that different application scenarios of jacks have different requirements for the pressure, flow rate, power, and size of hydraulic power packs.
Therefore, in addition to the standard model, we can also provide you with OEM and ODM customized solutions for the hydraulic power pack for jack. From design, production, assembly to testing, we strictly control every step to make sure that each hydraulic power pack can provide long-term stable power for your jack.
Specially designed for jacks that require control of power return, supporting bidirectional power output.
Larger flow and higher power, suitable for jack systems that require faster lifting cycles
Suitable for most hydraulic jacks and lifting equipment
Features of the Hydraulic Power Pack for Jack
Easy to install on various vehicle chassis or fixed equipment
Protecting the system from overload during heavy-duty lifting operations
Control the lifting and lowering at a safe distance
Accurate flow control and minimizing the risk of internal leakage
Double Security Guarantee
Our hydraulic power pack for jack is equipped with integrated pilot-operated check valves and a precision relief system. In case of power interruption or pipeline accidents, this structure can prevent the piston rod of the jack from retracting and stabilize the heavy object in its current position. This makes sure safety during heavy-duty lifting.
Precise Flow Control
Pressure fluctuations and operational vibrations can easily cause damage to the lifted object and the jack. We keep smooth hydraulic oil transmission by optimizing the flow channels of the manifold block, thereby reducing system pressure pulsation and turbulence. By using a precision gear pump and a damping solenoid valve, the hydraulic power pack for jack can achieve a smooth transition of lifting action, avoiding the impact caused by sudden pressure changes.
Enhanced Heat Dissipation Capability
The hydraulic power pack for jack is equipped with a large heat dissipation area hydraulic tank and is combined with a motor with optimized cooling fins, thereby enhancing the heat dissipation efficiency. This makes the system maintain the oil temperature within the ideal range during continuous high load operation cycles, preventing viscosity reduction and seal aging caused by oil overheating.
Applications of the Hydraulic Power Pack for Jack
The hydraulic power pack can provide continuous and stable hydraulic pressure for the jack, driving it to lift vehicles or heavy workpieces.
At the logistics center, the dock and the storage site, the hydraulic power pack can drive the jack to complete the operations of loading and unloading goods, stacking and positioning.
The compact DC hydraulic power pack can directly obtain energy from the vehicle battery to drive the jack. Its portability provides immediate lifting capability for rescue vehicles.
In large-scale projects such as bridge lifting or structural adjustment, hydraulic power packs can provide stable and controllable power for multiple jacks, achieving millimeter level synchronous lifting.
Some Reference Configurations
| Power Source | DC 12V/24V, AC 110V/220V/380V, or as required |
| Power | 0.75 kW, 1.6kW, 2.2 kW, or as required |
| Max Pressure | 2950 psi, 3200 psi, 10,000 psi, or as required |
| Flow Rate | 0.8 L/min, 3.5 L/min, 8 L/min, or as required |
You need to be clear about the following points. One factor is the working pressure required by the jack. This determines the maximum output pressure of the hydraulic power pack. The second is the flow rate of the jack. You can calculate the required flow rate based on your desired lifting speed. The third point is the power supply conditions at your site, such as AC and DC. Note that you also need to leave a certain safety margin.
For extremely cold environments, we recommend that you use a special hydraulic oil with a low freezing point and consider installing an oil preheating device. For high-temperature environments, you need to strengthen the cooling system. You can choose to install higher power air-cooled or water-cooled radiators. It is also recommended to use hydraulic oil with higher viscosity and better resistance to high-temperature oxidation to keep stable system performance.
The daily maintenance of the hydraulic power pack for jack focuses on monitoring and keeping it clean. You need to regularly check the level of the hydraulic oil and make sure that it is sufficient. Observe the color and condition of the oil, and replace the hydraulic oil and filter elements according to the recommended cycle. In addition, you should keep the motor cooling fins and the surface of the oil tank clean. You also need to check for any leaks at the connections of all the pipes.
Most hydraulic power packs are designed for vertical installation to make sure that the pump can draw in oil fully and facilitate heat dissipation. If you need to install a horizontal installation, we will also adjust the suction pipe and internal partition of the fuel tank.
The operating noise of hydraulic power packs usually originates from pump vibration or fluid pulsation. We suggest that you use shock absorbers to isolate the power pack from the mounting base and use flexible high-pressure hoses instead of hard pipes for connection.
What is the Hydraulic Power Pack for Jack?
The hydraulic power pack for jack is an independent and integrated hydraulic energy source device. It is used to provide the required high-pressure hydraulic power for hydraulic jacks. The hydraulic power pack for jack can provide reliable power for jacks in various industrial, construction, and maintenance scenarios without a central hydraulic system.
How does the Hydraulic Power Pack for Jack Work?
After the drive motor in the hydraulic power unit is activated, it drives the hydraulic pump to operate. The hydraulic pump draws hydraulic oil from the oil tank and compresses it into high-pressure hydraulic oil through the internal structure of the pump.
The high-pressure hydraulic oil is regulated by the valve group and delivered to the hydraulic cylinder of the jack. This drives the piston in the cylinder to make linear motion, which in turn drives the top rod of the jack to rise, achieving the lifting operation of the load.
When it is necessary to lower the load, the control valve group switches the direction of the oil circuit, and high-pressure hydraulic oil slowly flows back to the oil tank through the pressure relief circuit. The piston resets under the action of load gravity or spring tension, driving the jack rod to smoothly fall back.
The hydraulic valve group will adjust the pressure and flow of hydraulic oil in real time to keep a smooth and safe operation throughout the entire process.
Troubleshooting of the Hydraulic Power Pack for Jack
The Hydraulic Jack is Unable to Lift.
Fault Phenomenon
The motor of the hydraulic power pack is running normally, but the jack has no lifting action.
Possible Cause
The hydraulic oil level in the tank is too low, and the hydraulic pump cannot extract enough oil.
The oil filter of the hydraulic pump is clogged, preventing the oil from flowing normally into the pump body.
The directional valve is stuck and unable to switch the oil circuit, resulting in the inability to deliver high-pressure oil to the jack.
Inspection Steps
You can first check the oil level in the fuel tank. If the oil is insufficient, you need to replenish the hydraulic oil to a reasonable range.
If the hydraulic oil is sufficient, you can remove the oil filter element for cleaning or replace it with a new one.
If the jack still doesn’t work, you can disassemble the directional valve, clean the impurities inside the valve body, and check the flexibility of the valve core.
The Hydraulic Jack is Moving Slowly.
Fault Phenomenon
After the hydraulic power pack is started, the lifting speed of the jack is slow or is unable to lift the corresponding tonnage load. The pressure gauge shows that the pressure is lower than the rated value.
Possible Cause
The relief valve is not properly adjusted, and the set pressure is lower than the rated pressure of the equipment.
The hydraulic pump is severely worn, and the sealing performance of the pump body decreases, resulting in internal leakage.
The viscosity of the hydraulic oil is abnormal, the fluidity of the oil has deteriorated, and the pressure transmission is obstructed.
Inspection Steps
You can first make minor adjustments to the relief valve, gradually increasing the pressure to the rated value, and then observe whether the jack operates normally again.
If the pressure still cannot be increased, check the color and viscosity of the hydraulic oil, and replace it with a new hydraulic oil that meets the requirements of the hydraulic power pack.
If the problem persists, you need to check the internal wear and seal condition of the hydraulic pump and replace the worn parts.
Excessive Noise and Vibration
Fault Phenomenon
The motor produces harsh or dull noises during operation, and the equipment vibrates violently.
Possible Cause
Air enters the hydraulic pump, causing cavitation noise.
The coaxiality of the connecting shafts between the motor and the hydraulic pump has deviated, causing interference during operation.
The fuel tank is not securely fixed, causing resonance during equipment operation.
There are impurities in the hydraulic oil, which cause the pump body or valve group components to wear out and result in abnormal noises during operation.
Inspection Steps
You can open the fuel tank vent valve to expel the air from the oil circuit and refill the hydraulic oil to the standard level.
Check the connection between the motor and the hydraulic pump, adjust the coaxiality, and tighten the fixing bolts.
Reinforce the fuel tank support to prevent resonance.
If the noise persists, check the cleanliness of the oil, replace the hydraulic oil and filter elements.
Inspect the wear condition of the pump body and valve group, and replace the damaged components in time.
Oil Leak
Fault Phenomenon
When the hydraulic power pack is in operation or at rest, there is hydraulic oil leakage at the oil tank, pipe interface, valve group or hydraulic pump. In the short term, the oil needs to be replenished frequently.
Possible Cause
The seals have aged and become damaged.
The pipe connections are loose.
Inspection Steps
First, you need to observe the location of the oil leakage. If it is at the joint, tighten the joint bolts. If the leakage persists, replace the sealing gasket.
If oil leaks from the seal of the fuel tank or pump body, remove the corresponding component and replace it with new seals.
If there is leakage in the valve group, check the fixing bolts of the valve group, clean the impurities on the sealing surface, reinstall and tighten them.
At the same time, you also need to inspect the surrounding components of the leakage area to prevent damage caused by the corrosion of the oil.
System Overheating
Fault Phenomenon
After continuous operation of the jack for a period of time, the body, fuel tank, and pipeline temperature of the hydraulic power pack increased abnormally. In severe cases, the power pack will automatically shut down.
Possible Cause
The cooling system is malfunctioning, such as the blockage of the cooling fins by dust and impurities.
The hydraulic oil is insufficient, resulting in reduced oil circulation, and it is unable to dissipate heat.
The hydraulic power pack for jack has been operating under an overloaded condition for a long time, with the pressure remaining consistently above the rated value.
Inspection Steps
You need to stop the device first, cool it down, and clean the debris on the surface of the heat sink.
Check the oil level in the fuel tank and replenish the hydraulic oil in time.
You should control the duration of each continuous operation to avoid long-term overload.