Shanghai ENJUE Machinery Equipment Co., Ltd is one of the most experienced manufacturers and suppliers of Clamshell Dredging Grab in China. If you're going to buy custom Clamshell Dredging Grab made in China, welcome to get more information from our factory. For price consultation, contact us.
ENJUE's full line of highly adaptable excavation and clamshell dredging grab. Leveraging modular design, innovative materials, and intelligent control technology, these grabs provide precise solutions for sand and gravel handling, river desilting, port maintenance, and industrial sludge management. Through scientific classification and technological innovation, these grabs cover a wide range of materials, from lightweight sand to high-viscosity sludge, significantly improving operational efficiency and equipment life.
High-Efficiency Sand Handling Series of the Clamshell Dredging Grabs (SG-Series)
Applications of the
Port channel maintenance, beach replenishment, and dry sand mining
Technical Highlights:
Streamlined bucket design: Utilizing a sturgeon jaw curve. Combined with the honeycomb-shaped filter holes at the bottom, it achieves rapid sand and water separation.
High-Strength, Wear-Resistant Liner: Tungsten carbide alloy inserts in the bucket teeth extend the liner's life to 2,000 hours when handling dry sand and gravel.
Lightweight Structure: Topology optimization reduces weight, shortening cycle time to 8 seconds.
Soft Clay and Fine Aggregate Composite Processing Series of The Clamshell Dredging Grab(EJ-Series)
Applications: River dredging, agricultural water conservancy, and urban pipeline maintenance
Technical Breakthroughs of Our Dredging Grabs:
Double-layer hopper structure: The outer layer is constructed of Q355B low-alloy steel, while the inner layer is composed of a polymer elastomer.
Vibration-assisted unloading system: A built-in micro-vibration motor automatically activates when the material viscosity exceeds 8000 mPa·s, significantly reducing unloading time.
Intelligent Pressure Sensing: A thin-film pressure sensor installed on the bottom of the hopper monitors material density changes in real time and automatically adjusts the closing force.
Hard Substrate and Gravel Processing Series of the Clamshell Dredging Grab (Dredging grab-Series)
Applications: Rock wharf maintenance, mine tailings disposal, building foundation excavation
Engineering Innovations:
Serrated tooth array: Made of heat-treated CrMo alloy steel, with tooth tip hardness reaching HRC52, capable of crushing gravel with a diameter of ≤300mm.
Hydraulic buffer system: When encountering rock formations with a hardness greater than 8MPa, the hydraulic cylinder automatically releases pressure to protect the main structure from impact.
Replaceable bucket bottom: Available in three tooth spacing configurations (50mm/100mm/150mm) to accommodate materials of varying particle sizes.
High-Viscosity Sludge and Organic Matter Treatment Series of the Clamshell Dredging Grab (SL-Series)
Applications: Industrial sedimentation tank cleaning, municipal sludge disposal, and aquaculture bottom modification
Environmental Protection:
Screw Extrusion Structure: An Archimedean screw is integrated within the hopper, simultaneously squeezing and dehydrating the sludge as it is collected.
Anti-Corrosion Coating System: Graphene-modified epoxy coating with a 10-year coating lifespan in corrosive environments with a pH of 2-12.
Enclosed Design: An elastic sealing strip is installed on the top of the hopper to prevent sludge splashing during operation, meeting CE certification Level 2 leakproof standards.
ENJUE Dredging Grab offers comprehensive customization services for clamshell Dredging Grab, covering the following dimensions:
Material Adaptation: Bucket tooth geometry, liner material, and closure profile are precisely tailored based on customer-supplied material samples.
Environmental Adaptation: Specialized features - including corrosion resistance, explosion-proof certification, and low-temperature startup capability (down to −40°C) - are engineered to suit harsh operating conditions.
Interface Adaptation: Full compatibility with a wide range of excavators, cranes, and dredging vessel lifting systems ensures seamless plug-and-play integration.
Data Integration: Industrial protocol interfaces - such as Modbus TCP/IP and CANopen - are provided to enable effortless connection with customers' IoT platforms.
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