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Hydraulic bolt tensioner, abbreviated as hydraulic tensioner, is an advanced tool for pre tightening and disassembling bolts. It is easy to operate, convenient to use, and highly safe, widely used for pre tightening large diameter bolts. The hydraulic tensioner is powered by a hydraulic pump and determines the tensile force based on the tensile strength and elongation of the material used.

working principle:
The hydraulic tensioner is mainly composed of a hydraulic pump, a working head, and a high-pressure hose. The hydraulic pump is the power source, and the working head completes the bolt tension execution work. The high-pressure hose connects the hydraulic pump and the tensioner body.
Tightening characteristics:
The hydraulic tensioner uses pure tension to directly pull bolts, suitable for pre tightening or disassembling various types of bolts. It can control the pre tightening force of bolts, improve work efficiency, and meet the requirements of balanced bolt stress. The hydraulic tensioner has high precision and is safe to use. One type of tensioner can be adapted to multiple different types and specifications of bolts by replacing the stretching head.
Usage restrictions:
Hydraulic tensioners require sufficient elongation, therefore they are limited in situations where the axial space is narrow. It can also be customized according to customer needs and special requirements.
Application areas:
Hydraulic tensioners are widely used in fields such as wind power, hydropower, petroleum, mining, or large machinery.