1.Automaticreset design of piston, suitable for frequent use.

2. Suitable for single specification bolt stretch, high precision. 

3.Can be equipped with manual hydraulic pump, pneumatic hydraulic pump, electric hydraulic pump, multiple stretchers can be used simultaneously. 

4. Standard working pressure 150MPa. 

Application:Bolt fastening and disassembly in ship, steel, thermal power, hydropower, nuclear power and other large equipment.