HL Tensioner

Hydratight's topside tensioners.


The HL tensioner provides a simple, safe, accurate and time saving method for tightening bolts and studs, maximising economy and versatility by utilising common hydraulic heads with interchangeable bridges, sockets and pullers.

This enables the maximum number of bolt diameters to be covered with the minimum number of tools. Colour-coding of the hydraulic heads ensures easy identification of the tools.

Maximum tool operating pressure 1034 bar (15,000 psi).


Accurate tension of bolted connections requires knowledge and experience. Our products have patented solutions that combine both speed and accuracy.


Quality is our trademark, and the proof is in our satisfied customers. kNm Hydraulics holds its subcontractors and their products to a high standard. We manufacture our equipment in the USA, UK, Sweden, and Germany.