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The Enjue clamshell grab bucket is a hydraulic grabbing device used for bulk material handling. Its name comes from its clamshell-like opening and closing structure. This device is typically mounted on cranes, excavators, or specialized grab buckets for the efficient grabbing, lifting, and dumping of bulk materials.
Working Principles of the clamshell grab
The clamshell grab bucket uses a hydraulic system to drive two or more buckets to open and close:
Closed State: The hydraulic cylinder retracts, pulling the buckets to close and grab material.
Opening State: The hydraulic cylinder extends, pushing the buckets to open and release material.
Control System: A hydraulic system consisting of a hydraulic pump, control valves, and an oil tank ensures smooth and powerful opening and closing.
| No | Item | Qty | Details |
|---|---|---|---|
| 1 | BUCKET S/ASSY | 2 | Grab flap assembly |
| 2 | COULDER ASSY | 4 | Winch or hoisting mechanism |
| 3 | FRAME S/ASSY | 1 | Frame assembly |
| 4 | HYDRAULIC OIL TANK | 1 | Hydraulic tank |
| 5 | CABLE CONTAINER | 1 | Cable container |
| 6 | SHACKLE | 1 | Shackles are used to connect lifting equipment. |
tech data
| Item | Parameters | Detailed Specify |
|---|---|---|
| Grab capacity | 3 CBM | Rated loading volume |
| Motor power | 25 HP(~18.6 kW) | Drive the hydraulic pump |
| Hydraulic pump flow | 45 LPM(L/Min) | Hydraulic system oil supply |
| Hydraulic oil tank capacity | 170 L(~) | Store hydraulic oil |
| work system | Continuous(Continue Working) | Suitable for long working hours |
| Rated lifting capacity | 10 TON S.W.L. | SWL~10t |
| Closed length | 3220 mm | Total length when the grab is closed |
| Opened length | 2316 mm | Generally, the opening length should be greater than the closing length. |
Application Scenarios of the clamshell grab
Clamshell grabs are widely used across a range of industries and applications, including:
Port loading and unloading – handling bulk cargo such as coal, ore, grain, and fertilizer.
Mining – grabbing ore, gravel, and sand.
Construction sites – moving sand, cement, and construction waste.
Metallurgical industry – handling scrap steel and slag.
Ceramics and building materials industry – transporting clay and raw material powders.
Waste disposal – material handling at landfills or incinerators.
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