How should the electric hoist overload limiter be selected?

At present, the electric hoist overload limiter on the market all uses the force (weight sensor) of the lifting structure of the electric hoist to feed back to the instrument for collection, comparison, reading, and judgment after displaying the current weight and responding to it. Working conditions indicate that when the rated weight is exceeded, quickly cut off the hoisting circuit of the electric hoist Crane Hook, so that the electric hoist cannot lift heavy objects, so as to protect the safety of the electric hoist and the operator. According to the structure of the electric hoist, the electric hoist overload limiter is mainly divided into an integrated type (represented by WTZ-A20 electric hoist overload limiter) and split type (represented by WTZ-A60 electric hoist overload limiter).

The integrated electric hoist overload limiter sensor is bundled with the display instrument, and the main sensor used is the side pressure sensor. Take WTZ-A20 as an example. When selecting this type of overload limiter, it is necessary to pay attention to factors such as electric hoist load, wire rope magnification, wire rope diameter and available power supply. The overall error is generally ±0.02% F.S. The advantages of the integrated electric hoist overload limiter are easy installation and low price. Suitable for wire rope electric hoist.

The split type electric hoist overload limiter generally uses a pin type sensor, an S type sensor or a plate ring type sensor. According to the structure of the electric hoist, select a sensor that is convenient for taking force. Take WTZ-A60 as an example. When selecting this type of overload limiter, when providing data such as electric hoist load, wire rope magnification, wire rope diameter and available power supply, it is also necessary to provide relevant parameters for installing the corresponding sensor to facilitate the purchase The overload limiter can be put into normal use. The advantage of the split electric hoist overload limiter is that it is more free to take power and can solve the safe overload problem of the more complicated electric hoist. Suitable for electric Chain Hoist.