Hydraulic bolt tensioner SLT series

The spring return design enables automatic piston retraction at the end of the tensioning sequence, ensuring the tools are prepared and ready for the next cycle. In comparison to manual return tensioners, our range of Spring Return Tensioners allow greater efficiency and warrant ease of use for the operator due to the improved design including the anti-slip tool surface to enhance grip. Working pressure 1500 bar /21755 psi. Special seal kit, piston/cylinder mis-alignment compensation. Piston stroke of SLT1=8mm, the other model is 10mm. Built-in stroke limit valve prevent over stroke. Fully enclosed load cell to prevent debris into cylinder Spring return, fast, safety.