Duo Multi-stage Tensioners

Duo series multi-stage tensioners are versatile and reliable hydraulic bolt tensioners suitable for applications with high loads and limited space.

Optimized for use on wind turbines, they are designed for long service life and low maintenance. They can be used on individual bolts or linked together for simultaneous tightening of multiple bolt connections.

Duo tensioners are widely used for slewing rings, power generation, construction work, and all critical bolted connections.