Dangerous hoisting and crane overload situations may occur when the lifted load‘s weight is unknown. However, even when the weight is known, dangerous overload may still occur.
Attempting to lift equipment which is anchored.
Lack of coordination between the various staff responsible for lifting.
Addition of equipment at a later stage (after the total lifted load has been calculated and approved).
Unbalanced distribution of the load when several lifting points are used to lift a single load: Even if the total load does not exceed the combined SWL of all the lifting points, some of the lifting points may carry less load while others are overloaded.
Crane overload is very dangerous and must be prevented. The Ron Crane Scale series help to detect overload and prevent it.
Crane overload control and prevention may be achieved by either a weighing system or a load limit switch (overload switch):
1. Weighing systems are electronic crane scales that weigh the load, display the measured value and trigger an overload warning whenever an overload situation is detected. Wireless overload prevention is possible thanks to our wireless crane scales and tension dynamometers.
2. A crane overload switch is a crane load limit switch that helps to detect overload and prevent it by triggering an overload warning or alarm whenever the preset threshold is reached.