1. Double cylinder design, suitable for narrow space conditions.

2. Suitable for single specification of the bolt stretch, high precision, easy to operate. 

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.

Round nut：

Stud bolt tighten device：