HFG - SINGLE ACTING FAILSAFE LOCK RING CYLINDERS

Capacities from 50 to 520 tonnes Stroke lengths from 50 to 152mm Working pressure 700 Bar

The HFG single acting failsafe lock ring cylinder range combines all the versatility and efficiency of hydraulic power with the safety of mechanical load support. Ideally suited for applications requiring sustained load holding for extended periods, such as bridge support work, the HFG range features a single acting, load return piston, threaded throughout it's stroke length to suit the integral threaded mechanical load holding lock ring. Simply jack up the load, wind down the mechanical lock ring until it comes into contact with the cylinder body, release the hydraulic pressure and sustain the load mechanically. All models are suitable for vertical lifting only and are supplied with tilting saddles as standard to reduce the risk of side loading the cylinder. Standard models are featured in this catalogue, however other stroke and tonnage options are available on request.

» Single acting load return design » Surface treated cylinder bore » Low friction bearing surfaces » Surface treated piston rod » Anti-extrusion seals » Tilting saddle fitted as standard » Overstroke restrictor port