GRL Designs
Manufacturers of Crane Overload Sensors

GRL Designs have been manufacturing Limitload crane overloads for more than 30 years providing a very reliable low cost solution to overload protection.

The original LS design is electro mechanical using a micro switch to detect overload or slack rope conditions.

An updated LSW version is fitted with 2 syncronised switches providing additional safety and satisfying the requirements of BS EN12077-2 & BS EN13849-2.

These compact units simply bolt onto a static wire rope and detect the load. Units are available up to 100kN (10,200kg) load on the rope and rope diameters up to 24mm


Recently launched is a range of Load Cell (LC) versions. These have been developed to satisfy the future market where safety monitoring is becoming more necessary. These products fit within the same envelope as the existing product range but provide multiple switching and optional outputs.