There are no wheels or gears in a Tirfor. Two jaw blocks alternate to drive a wire rope through the Tirfor moving an attached load in a chosen direction, like two hands pulling a rope. The jaws are self-tightening, the greater the load, the stronger their grip, giving immediate progressive and safe tension on the wire rope.

A disengagement mechanism allows the wire rope to be inserted and removed from between the jaws.

• Certified for man riding according to EN 1808
• Blocstop BSA on secondary safety rope
• Quick installation
• There is no limitation of rope length
• It is quickly installed in any location and can be used where there is no power supply
• Shear pin overload protection incorporated in the forward lever handle