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Crane Grab
Introduction
Main parameters
| Grab capacity | 5~30 m³ (depending on the specific model) |
Multi-flap crane grab bucket is a heavy-duty attachment designed for efficient grabbing of irregular bulk materials. It is widely used in scrap steel recycling, garbage disposal, mining and port operations. The grab bucket adopts a 4-8-flap jaw structure, which has stronger material adaptability and grabbing stability than the traditional double-flap grab bucket. It is especially suitable for handling complex materials such as scrap metal, construction waste, and industrial waste. Its modular design allows the type of jaw to be replaced according to different working conditions, greatly improving the utilization rate of the equipment.
The product uses high-strength wear-resistant steel to manufacture the jaws, and the key stress-bearing parts are reinforced to ensure the structural reliability under heavy load impact. The optimized hydraulic drive system provides balanced closing force and penetration force, allowing the grab bucket to easily bite large pieces of material. Some high-end models are equipped with intelligent pressure regulation function, which can automatically adapt to different material densities to prevent overload damage. In addition, the unique staggered jaw layout effectively reduces the material shedding rate, and improves the operating efficiency by at least 15% compared with traditional grab buckets.

The multi-flap crane grab bucket offers significant advantages in material handling efficiency and versatility. Its innovative multi-flap design ensures a wider grabbing range and more uniform force distribution, enabling efficient loading of bulk materials like coal, grain, or minerals with minimal spillage. The synchronized flap mechanism provides faster cycle times compared to traditional grabs, while the robust construction ensures durability in heavy-duty operations. Its adaptability to various crane systems and ability to handle diverse material types (from fine powders to coarse aggregates) make it ideal for ports, construction sites, and industrial facilities. The design also promotes better material containment during lifting, reducing waste and environmental impact.
parameter
| Parameter category | Parameter description |
| Model range | Depending on the capacity, common models: 5m³, 8m³, 10m³, 12m³, 15m³, 20m³ (customizable) |
| Applicable materials | Bulk materials such as coal, ore, sand and gravel, grain, scrap steel, industrial waste, etc. |
| Grab capacity | Grab bucket 5~30 m³ (depending on the specific model) |
| Working level | Comply with FEM/ISO standards, usually M5~M8 (medium-heavy to heavy duty) |
| Rated load | 5~50 tons (depending on the size of the grab and the crane match) |
| Opening and closing method | Hydraulic drive/electric wire rope control (optional) |
| Number of flaps | 4~8 petals (common 6-petal design to ensure uniform grabbing and sealing) |
| Material | High-strength wear-resistant steel (Q345B, Hardox, etc.), key parts are strengthened |
| Sealing | The gap after multi-petal closure is <5mm to reduce material leakage |
| Applicable crane | Gantry crane, overhead crane, port crane, etc. |
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