Electric hydraulic clamshell grab is used for single hook type cranes. It drives the hydraulic oil station through an external power supply connected to the motor, causing the force generated by the oil cylinder to open or close the bucket, especially for bulk cargo with a high density, the gripping effect is particularly prominent. It has advantages such as strong gripping force, fast gripping speed, good gripping effect, and easy clearance. Widely used in ships, environmentally friendly power plants, steel mills, etc., grab materials including coal, sand, ore, etc.