850 psi Hydraulic Hand Pump, 450cc Oil Reservoir

Factory price hydraulic hand pump with gauge featuring single-stage speed. The manual hydraulic hand pump has advantages of small size, light weight, easy to carry and high security.

Specification

Features

• Hydraulic hand pump has a single-stage oil output design, it can provide power for hydraulic tools under no electricity, portable and practical.
• Manual operation mode, optional length of oil tube, with quick coupling.
• The pressurization can be stopped in the middle of operation, with pressure maintaining function.

Hydraulic Hand Pump Structure Diagram

Hydraulic Hand Pump Usage

1. Connect the high-pressure oil pipe female joint of the main pump and the male joint of the sub-machine oil pressure cylinder, and tighten them.
2. Tighten the oil return switch of the pump clockwise, shake the handle repeatedly to advance piston until the work is completed.
3. After completion, loosen the oil return switch counterclockwise to reset the piston.

Tips: Working principle of hydraulic hand pump.

The cam is rotated by the motor. When the cam pushes the plunger to move upward, the sealing volume formed by the plunger and the cylinder is reduced, and the oil is squeezed out from the sealing volume and discharged to the required place through the one-way valve. When the cam rotates to the descending part of the curve, the spring forces the plunger downward to form a certain degree of vacuum, and the oil in the tank enters the sealing volume under the action of atmospheric pressure. The cam makes the plunger rise and fall continuously, the sealing volume decreases and increases periodically, and the pump continuously absorbs and discharges oil.