Electric (hydraulic grab) is the best equipment for loading and unloading stacking of wood, grass and reed as raw materials and unstacking operations, dual power system has an internal combustion engine and electric 380V swap operations, can quickly replace the hydraulic grab different, the terminal electric hydraulic grab consumption low cost saving, low use cost, because electricity than oil. The price is low.

Many of the common safety accidents in Wharf and port are caused by the crane grab, and the hydraulic grab takes on the function of connecting the crane and the heavy load, so the maintenance work must be paid attention to. For this reason, when the hoisting height, position limiter or hook locking device of the hydraulic grab is failed or damaged, it must not be used again. As for the case without license, the leadership responsibility shall be investigated.

Hook can depending on its shape, divided into singleanddouble hookhook two; and according to their different manufacturing process, divided into pieces of hook, hook hook forging casting three. At present, the common hooks are forged single hooks, and the cast hooks are not allowed on the crane. The hooks are made of low carbon steel and carbon alloy steel to solve the problem of resistance and crack.

Safety is the most important factor that should be paid attention to when crane equipment is operated. The attention is paid to the use of ropes, and the wear of the hook should be paid attention to to ensure the safety in production and improve the work efficiency.