Features: 1) "H" type structural steel frame, with high stability can be dismounted for store or transportation 2) With winch and pulley, press bed can be lifted or lowered easily 3) Oil cylinder is highly sealed 4) Fast lifting 5) Pressure gauge on the eye-catching place of frame can observe pressure directly and easily 6) Height limit valve: when the piston rod reaches its limit, it can stop automatically 7) Pump can be operated by hand or with air, which make operation become more convenient and labor saving