An excavator grapple is a hydraulically actuated gripping attachment designed for use in conjunction with an excavator; it grasps bulk materials through the synchronized opening and closing of its buckets or jaws. Based on their shape, these grapples are classified into two types: clamshell grapples and orange-peel grapples. The former consists of two bucket-shaped components, while the latter is composed of three or more individual jaws. In terms of operational characteristics, they are categorized into two types: non-rotating and rotating. The non-rotating type utilizes the excavator's existing hydraulic circuitry, whereas the rotating type requires the installation of an additional hydraulic valve block and associated piping. This attachment is suitable for a variety of applications, including the excavation of building foundation pits, operations within confined spaces, and the loading and unloading of bulk materials from ships and vehicles.
An excavator grapple comprises several key components, including hydraulic cylinders, the bucket body, and connecting columns; the quality of the welding directly impacts the structural integrity and service life of the unit, with the hydraulic cylinders serving as the critical driving components. Its manufacturing process requires specialized equipment-such as CNC plasma cutters and plate rolling machines-to execute the cutting, welding, and assembly stages.
