3 Cubic Meters Double-Claw Mechanical Grab Bucket for Sand Handling

With the continuous expansion of port logistics, dredging projects, and construction material transportation, the demand for reliable bulk material handling equipment has grown rapidly. Sand and sediment are among the most frequently handled bulk materials in ports and yards, requiring equipment that can operate efficiently under high-frequency, heavy-load conditions.

While hydraulic and electro-hydraulic grabs offer automation, many operators still prefer mechanical grab buckets due to their simple structure, lower failure rate, and reduced maintenance costs. In particular, double-claw mechanical grab buckets remain a proven solution for ports and yards that prioritize durability, operational stability, and cost control.

The customer is a port and yard operator primarily engaged in the loading and unloading of sand and sediment for regional construction projects. Daily operations involve transferring bulk sand from barges to storage yards and from yards to trucks.

The customer faced several operational challenges:

• Inconsistent grabbing efficiency when handling loose sand
• High maintenance costs associated with complex hydraulic systems
• The need for equipment compatible with existing crane systems
• A requirement for stable performance under continuous operation

To address these challenges, the customer sought a mechanical grab bucket that could deliver strong grabbing force, reliable operation, and long service life without relying on external power systems.

We supplied a 3 Cubic Meters Double-Claw Mechanical Grab Bucket specifically designed for sand and sediment handling. The grab features a left-and-right combined bucket structure with multiple jaw plates, enabling it to close tightly and evenly around loose bulk materials.

With a lifting capacity of 10,500 kg, the grab can efficiently handle high-density materials within a wide material density range. Its purely mechanical design eliminates the need for hydraulic or electrical components, significantly reducing maintenance requirements and simplifying daily operation. The robust steel structure ensures durability even in harsh port and yard environments.

After commissioning, the customer reported smoother operations and more consistent grab filling compared to their previous equipment. The mechanical grab demonstrated stable opening and closing performance during repeated lifting cycles, helping to improve overall handling efficiency. Operators also appreciated the simplicity of the system, which reduced downtime and maintenance workload.

Key Technical Parameters

• Grab Type: Double-claw mechanical grab bucket
• Capacity: 3 cubic meters
• Lifting Capacity: 10,500 kg
• Material Density Range: 1.25 – 1.8 t/m³
• Dead Weight: 4,700 kg
• Application Materials: Sand, sediment, and various bulk goods

Operational Results

• Improved grabbing efficiency for loose sand
• Reduced equipment downtime and maintenance costs
• Stable performance without hydraulic or electrical systems
• Easy transportation and seamless integration with existing cranes

The customer expressed strong satisfaction with the grab bucket’s reliability and durability. They confirmed that the equipment met their expectations for both efficiency and ease of operation and stated that the mechanical grab significantly reduced operational complexity in daily handling tasks. The customer also indicated interest in deploying similar grab buckets in future expansion projects.