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Grab, with "grab" as its English name, is a type of grab bucket capable of opening and closing to grasp sand, mud, and various bulk cargoes. It is a lifting tool that primarily relies on the opening and closing of two combined buckets or multiple jaws to grasp and discharge bulk materials. The grab operates by opening and closing two combined buckets or multiple jaw plates on the left and right sides to grasp and discharge bulk materials. A grab composed of multiple jaw plates is also known as a claw grab. Classification:

Based on shape, it can be divided into shell grabs and orange flap grabs. The former consists of two complete buckets, while the latter is made up of three or more jaw plates.

According to the driving method, it can be categorized into hydraulic grabs and mechanical grabs.