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Clamshell Grab Bucket

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Bucket Grab Crane Grab Buckets Crane Grab Grab Bucket Hydraulic Grab Bucket (2)

Clamshell Grab Bucket

1.Efficient Symmetrical Clamshell Design

The clamshell grab features a symmetrical two-shell structure that opens and closes smoothly with balanced force distribution. This ensures stable material handling and controlled discharge, delivering reliable performance even in confined or restricted working areas.

2.High Grabbing Efficiency

The optimized shell geometry improves material penetration and filling efficiency, effectively reducing empty grabs and material spillage. As a result, the grab achieves higher single-cycle loads and significantly improves overall operating efficiency..

3.Strong and Durable Construction

Manufactured from high-strength structural steel and reinforced at critical stress points, the clamshell grab offers excellent resistance to wear, impact, and fatigue. It is well suited for continuous, heavy-duty operations..

4.Wide Compatibility and Customization

The clamshell grab can be supplied in mechanical, electric, or electro-hydraulic versions. It is compatible with overhead cranes, gantry cranes, and various port handling equipment, with customizable designs to meet specific operating conditions..

The clamshell grab is an efficient and reliable solution for bulk material handling. The balanced dual-shell design supports stable operation. The optimized structure improves filling efficiency. The durable construction extends service life. Together, these features reduce material loss and support consistent performance across a wide range of industrial applications.

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Model Volume（m3） Required Crane Capacity(t) Electric Power (KW) Opening & Closing Time（S） Self Weight（t） Dimensions(mm)
A B C
DYD8-12 2.5 8 18.5 13/11 3.7 2950 2700 2300
DYD10-12 3.5 10 22 17/14 4.5 3150 2900 2550
DYD15-12 4.5 15 22 18/15 5 3200 2950 2660
DYD20-12 6.8 20 28 18/15 7 3700 3360 3050
DYD25-12 8.1 25 37 18/15 9.3 3890 3500 3350
DYD32-12 10 32 55 19/16 14.5 4400 4100 3400

Clamshell Grab Bucket Drawing

Crane Grab Buckets
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Clamshell-Grab-Bucket-product-features

Product Features and Applications

Features：

1.Balanced Clamshell Structure:

The symmetrical dual-shell design ensures balanced force during grabbing and lifting. This structure reduces swing and improves overall operational stability.

2.Optimized Bucket Shape:

The well-designed shell curvature increases material filling efficiency. It also reduces the risk of material spillage during lifting and transportation.

3.High-Strength Construction:

The grab is manufactured from high-strength steel plates. Key load-bearing areas are reinforced to provide strong resistance to deformation and impact.

4.Smooth and Reliable Operation:

Precise mechanical or hydraulic drive systems ensure synchronized opening and closing of the shells. This allows controlled and accurate material handling.

5.Flexible Configuration Options:

The grab supports mechanical, electric, and electro-hydraulic drive types. Bucket capacity, opening width, and structural dimensions can be customized to suit specific working conditions..

Applications​

The clamshell grab bucket is widely used in ports, shipyards, power plants, steel mills, cement plants, and bulk storage yards. It is suitable for handling free-flowing bulk materials such as coal, sand, gravel, ores, fertilizers, and grain. This wide use makes the grab a practical solution for many material handling tasks.

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Clamshell Grab Bucket details

Product Details

The clamshell grab bucket is designed and manufactured with a clear focus on durability, operating performance, and long-term reliability. The bucket shells are made using CNC precision cutting and full-penetration welding. This process ensures accurate dimensions and strong overall structural integrity. Key load-bearing areas are reinforced to handle frequent operating cycles and heavy impact loads.

For high-wear working conditions, the cutting edges and other wear-prone parts use high-strength wear-resistant steel. This material choice helps reduce wear and extends service life. The opening and closing mechanism follows a well-balanced structural design. It operates smoothly and ensures synchronized movement of the bucket shells. This design reduces mechanical shock and lowers maintenance needs.

To meet different operating requirements, the grab bucket can be equipped with mechanical, electric, or electro-hydraulic drive systems. The hydraulic system uses reliable and proven components. It responds quickly and provides precise control. This ensures stable operation and supports safe and efficient material handling.

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Product Support

Hanko Heavy Industry clamshell grab bucket is a proven solution for efficient and reliable bulk material handling. It is engineered with a reinforced steel structure and precision welding to ensure stable performance under continuous and heavy-duty operation. High-wear areas are protected with wear-resistant steel to extend service life and reduce downtime. The grab features smooth and synchronized opening and closing, which improves grabbing accuracy and operating safety. With options for mechanical, electric, or electro-hydraulic drives, Hanko clamshell grab buckets are widely trusted in ports, steel plants, power stations, and bulk handling terminals worldwide.

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Hanko Heavy Industry production equipment about Clamshell Grab Bucket

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Complete Guide

About Hanko

Hanko products are manufactured using high-strength materials and go through strict quality inspections to ensure durability and operational safety.

We offer custom manufacturing services for non-standard parts based on customer drawings or specific requirements.

Our products meet international standards and are exported worldwide, earning the trust of clients across Asia, the Middle East, Europe, and beyond.

What are the advantages of a clamshell grab compared with an orange peel grab?
A clamshell grab has a simpler structure and lower maintenance costs. It is well suited for regular bulk materials and high-efficiency continuous handling. An orange peel grab is more suitable for irregular or difficult-to-grab materials.
Common drive options include mechanical, electric, and electro-hydraulic systems. The choice depends on site power conditions, operating frequency, and control requirements..
Clamshell grabs are mainly used for bulk materials such as coal, ore, sand, gravel, grain, fertilizer, and cement clinker. They perform best with materials that have uniform particle size and good flowability.
The grab capacity should be selected based on the crane’s rated lifting capacity, material density, and handling efficiency requirements. Both the grab’s own weight and the full-load weight must be considered.

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