Oil tank free DC hydraulic power unit

1、 Product Overview

This is a compact oil-free DC hydraulic power pump set, which eliminates the need for an independent external oil tank and adopts an integrated direct connection structure of motor, gear pump, and integrated valve block. It is equipped with an external electromagnetic reversing valve and is compatible with DC12V/24V car DC power supply. It relies on the device's built-in oil circuit or small oil storage chamber to supply oil and is suitable for installation in extremely small car and mobile hydraulic equipment with extremely limited space.

2、 Core component analysis

High power DC permanent magnet motor

Black painted DC motor with external heat dissipation rib structure, high heat dissipation efficiency, and low risk of overheating during high current start-up; Equipped with metal electromagnetic starting relay (orange fixed bracket), sufficient starting torque, stable starting in low temperature and bumpy vehicle environment; The whole machine is sealed and dustproof, suitable for outdoor dusty conditions of trucks and small mobile machinery.

External electromagnetic directional valve assembly

Independently installed electromagnetic directional valve with metal valve body and wiring terminals, electrically controlled oil circuit switching, precise control of oil cylinder rise and fall; The valve group can be equipped with a single/dual channel structure as needed, with built-in overflow pressure regulating structure, overload automatic pressure relief, and protection of pipelines and oil cylinders.

High pressure dual gear pump

Front end aluminum alloy double gear pump, high volumetric efficiency, rated working pressure up to 16MPa, stable oil supply flow, wear-resistant and anti leakage, suitable for small and medium-sized lifting loads; External thread standard oil outlet, can be directly connected to high-pressure oil pipe, easy to assemble.

Integrated oil circuit valve block

Precision forged aluminum alloy integrated valve block, with reserved standard interfaces for oil inlet, return, and pressure oil, compact layout, reducing the risk of external joint leakage; The valve block integrates a one-way pressure maintaining valve, which can temporarily maintain pressure under load after shutdown to prevent the oil cylinder from automatically falling back.

Horizontal fixed base

The bottom of the motor is integrally formed and installed as a base, which can be directly bolted to the equipment rack and truck chassis. The shock-absorbing structure reduces the loss of the pump unit caused by vehicle driving vibration.

3、 Core advantages of the product

✅  Non fuel tank ultra compact structure, ultimate space saving

Eliminating the need for an independent fuel tank, the overall length of the machine is significantly reduced, making it suitable for installation scenarios where the frame is narrow and there is no space inside the equipment to place the fuel tank.

✅  DC on-board power supply, suitable for mobile devices

Support 12V/24V vehicle battery power supply, no need for industrial power supply, widely compatible with various types of trucks and small mobile hydraulic tools.

✅  External solenoid valve is easy to maintain

The directional valve is independently external, and in case of malfunction, there is no need to disassemble the pump body. It can be disassembled and replaced separately, resulting in lower maintenance costs.

✅  Double gear pump with high flow output

The dual pump design provides a larger oil supply flow rate, faster lifting speed of the oil cylinder, and better lifting efficiency than the single pump power unit.

✅  Flexible non-standard customization

Supports DC12V/24V voltage, single/dual solenoid valves, different flow pump bodies, extended control cables, and customized installation holes.

4、 Typical application scenarios

Box type truck accessories: small wing truck, light truck tailboard, hydraulic system for micro dump truck compartment

Small special vehicles: RV micro support legs, small obstacle clearing vehicle auxiliary lifting mechanism

Portable hydraulic tools: small hydraulic lifting frame, micro hydraulic clamping fixture

Agricultural machinery supporting equipment: small agricultural self dumping, agricultural machinery lifting auxiliary hydraulic pump set

Equipment built-in hydraulic system: Small automated mobile equipment with built-in hydraulic power source

5、 Standard technical parameters

Working voltage: DC12V/DC24V

Motor power: 1.6kW/2.2kW/2.5kW optional

Pump body structure: Double high-pressure gear pump

Rated working pressure: 8-16MPa (adjustable pressure)

Fuel supply form: No independent fuel tank, equipment comes with its own oil storage system

Control mode: External electromagnetic control lifting, optional manual emergency pressure relief

Applicable medium: 46 # anti-wear hydraulic oil

Installation form: Horizontal base fixed with bolts

6、 Instructions for Use and Maintenance

Add sufficient 46 # anti-wear hydraulic oil to the internal oil circuit of the equipment to ensure sufficient oil suction of the pump body and avoid idling wear;

The inlet and outlet of the pump unit are respectively connected to the equipment return oil and oil cylinder pipes, and the joints are fully tightened to resist the vibration and leakage of the driving;

Distinguish the positive and negative wiring of the battery, and connect the solenoid valve and relay circuits to the onboard control handle;

No load trial operation, adjust the overflow valve to set the system working pressure, and prohibit long-term operation beyond the rated pressure;

Check the cleanliness of hydraulic oil every 150 hours, replace impurities and oil stains in a timely manner, and regularly clean the surface dust of motors and solenoid valves.

7、 After sales guarantee

Factory stock supply, supporting non-standard customization of voltage, pump flow rate, and valve number, providing technical guidance for vehicle wiring, installation, and commissioning; The whole machine has a 12-month warranty, and the motor, gear pump, solenoid valve, and relay accessories are long-term matched. Remote troubleshooting is available, and a complete set of micro hydraulic solutions for oil cylinders and high-pressure oil pipes can be matched.

Introduction to E-commerce Short Version (1688/Cross border Platform)

Compact DC hydraulic power unit without fuel tank, 24V high-power DC motor with dual gear pump, external independent electromagnetic reversing valve, compact size of the whole machine, suitable for small installation space, used for light trucks and small mobile lifting equipment. Voltage and pump flow can be customized, and the manufacturer provides a one-year warranty for the whole machine.