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An excavator shell bucket, also called a clam bucket or clamshell bucket, is a specialized attachment designed for excavators. Shaped like a clam's shell, it consists of two or more hinged halves that open and close to scoop, lift, and transport materials.
Key Features
- Hinged Design: Two symmetrical shells (or "clams") connected by a pivot, allowing them to close tightly to hold materials.
- Teeth/Edges: Reinforced edges or teeth on the shell openings for gripping loose materials like soil, sand, gravel, or debris.
- Hydraulic Operation: Driven by the excavator's hydraulic system to control opening/closing, ensuring precise material handling.
Working Principle
The shell bucket opens wide to dip into materials (e.g., soil or gravel), then closes to trap the load. The excavator lifts and transports the bucket to a target location, where the shells open again to dump the material.
Main Applications
- Material Handling: Loading/unloading gravel, sand, or construction debris in ports, yards, or construction sites.
- Dredging: Scooping sediment or silt from water bodies (e.g., rivers, ponds) for excavation or cleanup.
- Precise Digging: Suitable for narrow or deep areas where traditional buckets are less effective, such as trench digging or foundation work.
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