Type of crane lifting limiter

overhead bridge crane overload protection devices according to their different functions can be integrated into automatic stop-and-two. Classified according to their institutional forms, there are two kinds of electrical and mechanical type.

Auto-stop type. It refers to lifting the quality of more than nominal weight, they can stop the crane to unsafe direction (lifting, outriggers, drop arm, etc.) continues to operate, while allowing the crane to a safe direction movements.

Integrated lifting limiter. When lifting the quality is reached nominal weight of about 90% can be audible or visual alarm signal, lifting weight of more than nominal weight, they can stop the overhead gantry crane  unsafe direction to continue action, concurrent sound and light alarm signals, and allow the crane to a safe direction movements.

Electric-type lifting limiter. Refers to mechanical energy to electrical energy conversion between, to achieve protection. That the detected amount of the load and other mechanical converted into corresponding electrical signals, and then zoom, comparing, computing and processing. Habits become electronic, electric, electromechanical and microprocessor-based products are of this.

Mechanical load limiter. Refers to the conversion of mechanical energy and switch between fit to achieve protection.bridge gantry crane Machinery products is relatively simple, using leverage, eccentric, spring or hydraulic system to detect load, through limit switch (control valve) the product movements.