Motor-Hydraulic clamshell bulk grab is chiefly used in single hooks crane. Which is a kind of efficient tool for loading and unloading coal, fertilizers, mineral powers etc small granular materials. It mainly consists of main body of grab structure, hydraulic power system and electronic control system. The closing force of grab depends on the power of hydraulic power system and the proper designing structure of the grab. The grab operation is very easy, only by operating the handle on operation control box equipped in electronic control system. It runs with 380-440 Volt power supply. Manufactured in the range of 1 to 30 cubic meter capacities.