Anti-snag system

High speeds and general performances of last generations quayside container gantry cranes require motors with high power. While rising up an empty spreader at max speed the kinetic energy accumulated in the driving system is enormous. In case of the spreader's engagement into the ship cells the kinetic energy becomes a potential high risk for mechanical and structural components of the crane.
In this eventuality our Anti-snag system is vital to prevent ropes and crane parts from damagement.

An efficient Anti-snag system can save cranes while operating on the ship.

Our Anti snag is perfectly integrated in our TLS system. Anti-snag is based on:
	Laboratory tests are essential to check and optimize the design and realisation of the components. Simulating the snag event we define exactly the type of solicitations occurring during the snag phase.
	Anti-snag valves made by Rima.
	TUV certification (German register) of the reaction time of the hydraulic system through oscilloscope tests.
	Studies about the interface/interaction with brakes/drives systems.
	Long experiences in application on many different types of cranes within many countries of destination. Even in case of giant power container cranes (lifting speeds up to 180 m/min).