Mechanical Clamshell Bucket
APR Bright Industries manufacturer the high-quality and performable mechanical clamshell grab bucket to handle heavy-duty bulk material in port, dredging, and other industrial environments. Custom design available in single-rope, two-rope, and four-rope as per requirements from grab handles 1 to 10 tons loads. It is designed with high-tensile steel and reinforced scoops, to handle the material like iron ore, coal and clinker, ensuring 20- 28% increase in loading and unloading cycles compared to other mechanical designs.
Technical Specifications & Requirements
| Lifting Capacity | 1 Ton to 10 Ton (Customizable to 30T) | Scales for EOT and Port Cranes |
| Material Grade | High-Tensile Mild Steel / Hardox 500 Wear Plates | Reduced downtime in abrasive environments |
| Rope Systems | Single, Two, or Four-Rope Touchdown | Compatible with all ship & deck crane types |
| Unloading Efficiency | 20% Faster Cycle Time via FEA Design | Higher throughput for port operations |
| Closing Mechanism | Gravity-based Strong Closing Force | Zero external power required; low maintenance |
| Color | Golden Yellow |
Principle of Operation
We have meticulously designed grab buckets to ensure superior functionality and longevity. Also, the inner surface features with high-quality tensile steel to handle charging and discharging of materials including mud, clay. External framework of the scoop is reinforced with an additional sheet, against wear and tear, and work in abrasive environments.
Types of Mechanical Clamshell Buckets
Single-Line Touchdown Mechanical Grabs
Single rope touchdown grabs bucket is designed for cranes with the specifications of single hoisting drum to open and close the grabs bucket. Grabs used for underwater operation through single cable shipboard cranes.
Two-Rope Operated Clamshell Buckets
A two-rope grab buckets required a cranes with two different hoisting drum for holding rope, and closing rope. Grab buckets commonly used in port, docks, and industrial sites for loading and unloading the variety of bulk material including sand, gravel, coal, iron ore, powder.
Four-Rope Dual Scoop Grabs
Four-rope touchdown grab bucket used to handle heavy duty material with two holding, and two closing ropes. Holding ropes support the bucket’s weight and closing rope deliver the force to ensure the opening and closing motion.
Applications of Mechanical Clamshell Buckets
In many industrial material loading and unloading activities mechanical clamshell bucket is indispensable grab bucket known for their robust design, gripping force, and versatile to handling a wide range of material including granular, sand, gravel, crushed stone, and ballast, road building, wheat, corn, rice, seeds, coal coke, iron ore, bauxite, limestone, debris, soil, remove silt, sediment, and debris,
jetties, etc.
Key Features and Advantages of Our Clamshell Grabs
APR Bright Industries introduced the next generation ship grabs or radio remote to load and unload the material easily when mount on crane. Our grab bucket enhance the productivity and support the crane to lift more during the operations. Made with high-quality material and excellence engineering for a longer operational life and reduce the frequency of repairs and replacements.
Frequently Asked Question
Q: How do you choose between a single-rope and a four-rope clamshell bucket?
Ans: It is depend up[on the cranes drum configuration and single-rope is ideal for shipyard cranes with one hoisting drum. Also, four-rope grabs bucket used for heavy-duty industrial EOT cranes require precise control and maximum closing force.
Q: What materials are best handled by a mechanical clamshell bucket?
Ans: Design and custom specification ensure the handling of material including coal, iron ore, bauxite, sand, gravel, and power with tight-seal to prevent leakage.
Q: Are APR Grabs suitable for underwater dredging?
Ans: Sealed pivot points and corrosion-resistant coatings, ensure the under water operation. Many of our grabs are operating at ship cranes.