The dredging grab is an ideal tool for dredging operations such as harbor deepening, silt cleaning, and land reclamation. It can demonstrate consistent and stable cleaning capabilities in marine, river, and port environments.
YFM dredging grab is primarily designed for dredging sludge, iron plate sand, and stone. Given the high resistance posed by underwater debris, the grab must be constructed from high-quality materials to ensure durability and effectiveness. To address these demanding conditions, our company utilizes advanced Japanese technology, which enhances the grab's resilience and extends its operational lifespan.
The grabs can be approved by CE, ISO, etc.
Specifications
Our dredging grabs are designed to operate efficiently under various environmental conditions, with capacities ranging from 2 to 20 cubic meters, depending on the specific application and equipment size. Advanced models can achieve closing forces exceeding 500 kN and perform multiple dredging cycles per hour, optimizing productivity and reducing operational costs. By incorporating Japanese technology, we ensure that our grabs offer superior performance and extended durability, meeting the rigorous demands of underwater dredging operations.
Technical Specification
- Crane lifting capacity：23Tons
- Grab SWL: 15Tons
- Grab dead weight: 8Tons
- Grab volume: 10m3
- Diameter of ropes: 32mm
- Diameter of pulley: 650mm
- Rope multiple: 5
Painting
Special anti-abrasion paint with 3 coats:
- 1st coat => The first layer uses epoxy zinc-rich primer. (with a dry thickness of 60 microns) because it has excellent adhesion.
- 2nd coat => The second layer uses epoxy micaceous iron oxide intermediate paint. Dry thickness 100 microns.
- 3rd coat => The third layer uses polyurethane topcoat. – Signal Yellow RAL 1003. Dry thickness 80 microns.
Features
YFM dredging grabs are engineered with specialized features to handle the challenging properties of underwater materials. For example, they may include reinforced wear-resistant liners to manage the high forces involved in dredging. Additionally, using high-strength alloy steels and advanced coatings helps reduce wear and tear, ensuring longer service intervals and reduced maintenance needs.
high-tensile wear-resistant steel
Forged from high-tensile wear-resistant steel and complemented by reinforced structural welding, our dredging grabs can withstand extreme impacts and corrosive environments. Critical stress points are equipped with double-layer wear plates, extending service life by 40% compared to conventional designs.
Superior Grabbing Force and Penetration, clamshell design
The optimized dual-jaw geometry ensures maximum bucket filling efficiency (up to 98%), even in compacted clay or rocky substrates. The synergistic operation of the crane's winch, wire ropes, and pulleys guarantees uniform closing pressure, enabling clean and efficient material retrieval.
High Volume:5-20+ cubic meters
Can be customized to match your operational scale.
Deep-Water Operational, up to 50 meters
Engineered for a maximum operating depth of 50 meters, the sealed heavy-duty slewing bearings and corrosion-resistant components ensure efficient operation even under high hydrostatic pressure.
Flexible Compatibility, Universal mounting interfaces
Universal mounting interfaces (compatible with equipment such as DEMAG and LIEBHERR) enable seamless integration with excavators, cranes, or dedicated dredging vessels.
Maintenance Efficiency, modular design
The modular design and quick-release jaw assemblies reduce downtime by 70%. Field-replaceable wear parts eliminate the need for costly returns to workshops for repairs.
Dredging Grabs
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