RC/A5-1 suits all kinds of Guy Derrick, which offers main working status of claw cranes accurately to the operator by LED. Also can display radius, angle, weight, visual-audible alarm when the load or radius reach rated weight or moment, meanwhile enforce corresponding movement.

This system occupies small space, easy installation, no need change any structures of original tower cranes, with double protection function. RC system conforms to the request from <GB12602-90 hoisting machinery overload protection device safety technical specifications>and <GB7959-1999 cantilever crane hoisting torque general technology >, which issued by the national technical supervision bureau.