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Why is the crane the size of two hooks

Oct 26, 2017

On the premise of the capacity of crane motor, the more the pulley group, the higher the weight, but the slower the lifting speed.

In order to adapt to different lifting speed under different weight, the size and size of the two hooks are set, both of which are run by one motor.

The little hook is small, but the lifting speed is fast.

The big hook is the other way around.