TORQUE LIMITER IS AN INDISPENSABLE SAFETY DEVICE FOR CRANES

Overload couplings for crane applications have the following features:

(1)The comprehensive error of the overload safety devices is not greater than 5%, and the number of lifting and lifting weight can be recorded.

(2)When the load reaches 90% of the rated lifting capacity, the torque-limiting systems should send out an alarm signal;When reaching 100-110% of the rated lifting capacity, the torque-limiting systems should automatically cut off the power supply through interlock control to control the lifting of the hoisted object.

(3)The overload couplings must not be adjusted or canceled without authorization. Routine inspection and maintenance must be in place and calibrated regularly.

Torque limiter

(1)The safety coupling is used for luffing lifting equipment such as truck cranes, crawler cranes, and tower cranes.

(2)The comprehensive error of the torque limiting clutches should not be greater than 10%.

(3)After the torque limiter couplings is installed on the lifting machinery, it should be adjusted or adjusted according to its performance and accuracy.When the load torque reaches the rated hoisting torque, the overload couplings automatically cuts off the hoisting or luffing power supply and issues a prohibition alarm signal.

Can torque limiters be used on vertical lifting equipment?

Conventional torque limiter couplings cannot be applied to vertical lifting equipment. torque limiter with stop devices can be applied to vertical lifting equipment to ensure that the displacement of the torque limiter can be detected by a mechanical switch and stop operation.Within a short period of time after separation, the internal "Stoppers" causes the safety coupling to immediately stop separation and recombine, thus avoiding the occurrence of "back slip".This technology is very suitable for lifting systems; it is widely used in hoists, lifts, ship lifts, industrial elevators and other occasions where it is necessary to "prevent back slip"; At the moment of overload, the attached "signal sensor" quickly sends out an electrical signal for emergency shutdown.