GT Lightweight Compact Single-Stage Bolt Tensioner

The GT lightweight compact single-stage bolt tensioner provides a reliable and straightforward solution for high-strength bolt pre-loading across a wide variety of industrial assembly and maintenance applications. Its single-stage hydraulic cylinder design delivers clean axial tensile force directly to the bolt, achieving consistent and accurate pre-load without the torque friction losses that affect conventional tightening methods. The compact form factor and low weight make it easy to handle and position, even in locations with limited overhead clearance.

A high-quality corrosion-resistant surface treatment on all external components protects against moisture, chemical exposure, and the environmental conditions typical of outdoor industrial sites. The interchangeable tensioning nut system allows a single tensioner body to be used across multiple bolt thread sizes and standards by simply exchanging the appropriate nut insert, reducing the total number of tools required on site and simplifying equipment management.

Gravity reset returns the cylinder to its starting position automatically after pressure release, eliminating the need for manual retraction and speeding up cycle time in repetitive tensioning operations. Multiple tensioners can be connected to and operated simultaneously from a single pump, enabling full-circle simultaneous tensioning for applications such as flange joints and bearing housings where uniform pre-load distribution across all bolts is critical to sealing integrity and structural performance.