Product Parameters
Parameter Category |
Multi-Jaw Grab Specifications |
Capacity Volume |
0.5-25 m³ |
Capacity Weight |
5-30 tons |
Jaw Configuration |
Typically 4, 6, or 8 jaws |
Width Closed/Open |
Closed: 1,500-5,000 mm
Open: Up to 2x closed width |
Jaw Thickness |
15-40 mm |
Empty Grab Weight |
800-20,000 kg |
Rope Requirements |
4-8 ropes |
Hydraulic Options |
Jaw opening/closing
Rotation optional
Pressure control |
Material Suitability |
Scrap metal
Municipal waste
Sludge/sticky materials
Demolition debris |
Key Advantages |
Better material retention
Penetrates uneven surfaces
Handles wet/sticky waste |
Critical Design Notes |
Jaw tips replaceable/welded
Requires higher crane capacity
Avoid overloading |
Product Description
A crane grab bucket is a heavy-duty attachment designed for handling bulk materials like coal, gravel, and scrap metal. Built from high-strength, wear-resistant steel, it features hinged jaw flaps (typically 2-6 segments) that open and close to securely grasp materials. Compatible with various crane systems, it operates via electric (380V), hydraulic, or wire-rope mechanisms, offering load capacities from 100 kg to 50+ tonnes.
Engineered for durability, it includes hardened steel edges and replaceable liners to withstand abrasive environments such as steel mills and ports. The grab bucket ensures efficient operation with fast 5-7 second opening/closing cycles and a 2.5x safety factor for overload protection. Customizable jaw designs (clamshell, orange peel, scrap grapple) adapt to different materials, while optional automation features enhance precision in modern industrial applications. Ideal for demanding material handling, it balances strength, speed, and reliability.
Application Scenarios
Bulk Material Handling - Efficiently loads/unloads loose materials like coal, sand, and gravel at ports and construction sites.
Scrap Metal Recycling - Specialized scrap grapples handle shredded metal, wrecked vehicles, and industrial waste in recycling yards.
Agricultural Operations - Transfers grain, feed, and fertilizer in silos or storage facilities.
Waste Management - Processes municipal solid waste and demolition debris at recycling plants.
Mining Operations - Excavates and transports minerals, ores, and tailings in mining areas.
Steel Mill Logistics - Handles hot/cold scrap, pig iron, and raw materials in foundries.
Dredging & Salvage - Recovers underwater debris, sediments, or sunken materials in marine operations.

Our Advantages
High-Efficiency Material Handling
Processes 3-5x faster than manual methods with 5-7 second cycle times.
Superior Durability
Engineered for superior durability, the steel construction resists wear for 10,000+ hours in abrasive conditions.
Adaptive Jaw Configurations
Interchangeable clamshell/orange peel/scrap designs handle 50+ material types.
Precision Load Control
±2cm positioning accuracy with anti-sway hydraulic synchronization.
Overload Protection
2.5:1 safety factor exceeds ISO 4301 standards for heavy-duty operations.
Low Maintenance Design
Quick-change wear parts reduce downtime by 60% versus fixed buckets.
Automation Readiness
IoT-enabled models feature auto-weight tracking and collision avoidance.
Packaging & Shipping
Crane grab buckets undergo rigorous export-ready packaging starting with heavy-duty steel frame crates (8mm beams) lined with VCI anti-corrosion paper and desiccant bags to prevent moisture damage during transit, where critical components like hydraulic cylinders are vacuum-sealed while jaw flaps are secured by high-tensile nylon straps to eliminate vibration damage; the entire unit is then wrapped in waterproof PE film for maritime transport with options for containerization (disassembled units in 20'GP containers) or RORO handling for oversized grabs, supported by full documentation including EN 13155 load certificates, NDT weld reports, and HS code 8431.31.00 labeling-all shipments comply with IMDG Code standards with FCL/LCL sea freight choices, land transport via low-bed trailers (4.2m height clearance), and mandatory pre-shipment protocols like hydraulic pressure release and IP66 connector capping to ensure risk-free delivery within 15-30 days ex-works, including all-risk insurance recommendations for ocean voyages.
FAQ
Q1: What's the informtion should l provide when inquiry?
The more details or drawings, the better. Such as Lifting capacity, Lifting height, Span, Voltage or others special requirements.
Q2: Can you provide custom service?
Yes, of course. We are manufacturer and we have our own engineer group They can out customized design according to your requirement. You just need to tell us your requirements.
Q3: Are there professional technicians to assist in the installation?
Yes.We have a professional installation team and have been to many countries to assist in installation. lf you need us to provide this service, please let us know in advance and we will provide you with the best solution.
Q4: How do you guarantee the quality?
We will constantly check the quality during the manufacturing process, and strictly test the equipment before shipment, and we will also send you aquality certificate.