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Technical Specifications – 2–4 Rope Mechanical Rock Grabs
NG-MRG series rock grabs are designed for handling bulk materials such as stone, ore, and heavy waste using 2-rope and 4-rope crane systems. Engineered for durability and impact resistance, these clamshell-type mechanical grabs are ideal for ports, construction yards, and mining operations.| Model | Capacity (m³) | Shell Width (mm) | Closed Height (mm) | Weight (kg) | Rope System | Application |
|---|---|---|---|---|---|---|
| NG-MRG1000 | 1.0 | 1100 | 1600 | 1300 | 2-rope | Stone, Sand |
| NG-MRG2000 | 2.0 | 1400 | 1900 | 2000 | 2-rope | Gravel, Scrap |
| NG-MRG3000 | 3.0 | 1700 | 2200 | 2800 | 4-rope | Ore, Rock |
| NG-MRG5000 | 5.0 | 2000 | 2500 | 4000 | 4-rope | Bulk Rock, Heavy Waste |
2–4 Rope Mechanical Rock Grabs – Heavy-Duty Clamshells for Cranes
NG Attachments offers a full range of mechanical rock grabs operated by 2, 3, or 4 rope systems, specifically designed for cranes used in ports, quarries, mines, and industrial loading applications. These robust clamshell grabs provide high-capacity, low-maintenance solutions for bulk material handling in harsh environments. Our mechanical grabs are made of high-strength steel with wear-resistant blades and reinforced hinge systems. Each model is designed for optimal penetration and secure grip on rocks, gravel, scrap, and aggregates. NG's mechanical rope grabs are compatible with various crawler cranes, gantry cranes, and overhead cable systems.Key Features
- 2, 3, or 4 Rope Operation: Compatible with standard lifting and closing cable configurations
- High Wear Resistance: Blades and shells made of Hardox or ST52 steel
- Large Volume Handling: Available in capacities from 0.5 m³ up to 20 m³
- Fully Mechanical: No hydraulic or electric components required
- Proven in the Field: Used in port terminals, mining operations, and heavy-duty construction
Applications
- Rock and stone loading in quarries
- Scrap and waste handling in recycling yards
- Bulk cargo unloading in ports
- Aggregate transfer for concrete and asphalt plants
Why Choose NG?
- Experienced Manufacturer: Decades of production experience in mechanical clamshells
- Customization Available: Adjusted pin spacing, bucket width, and shell profile
- Global Shipping: Crate-packed for safe international transport
- OEM and Replacement Grabs: Compatible with major crane brands
