Clamshell bucket

An attachment for handling sand, stone, minerals and other bulk solids. Vertical grabbing allows it to work with stockpiles, hoppers, silos, trucks and barges, depending on the installation. The design is adapted to the material, the discharge point and the carrier machine.

Unlike a standard bucket, which works best on open faces, the clamshell bucket descends vertically, closes on the material, lifts it and discharges it at a specific point: less spillage, more control and fewer manoeuvres.

The bucket is part of a system: capacity, shell geometry, hydraulic system, rotator and quick coupler are assessed together with the machine and the material. The applications presented include sand operations, aggregate plants, port facilities, barges and industrial projects.

Its work cycle has three steps:

• Vertical grab: descends and closes on the material;
• Lifting: transport without losing the load;
• Controlled discharge: opens at the exact point.

It integrates with:

• Conveyor belts;
• Hoppers and silos;
• Trucks and bodies;
• Barges.

It handles materials such as:

• Sand;
• Aggregates;
• Grain;
• Fertilisers;
• Loose soil;
• Sludge;
• Bulk solids.

Technical specifications:

• Capacity: from 0.07 to 16 m³, depending on the configuration.
• Discharge height: from 12 to 14 m.
• Grab: vertical.
• Quick coupler made by Tosama.
• Configurable to the operation: bucket capacity, shell geometry, type of material, hydraulic system, rotator and quick coupler.
• Robust structure, with plate and reinforcements for intensive use.
• Suitable hydraulics: cylinders and circuit matched to the machine.
• Simple maintenance, with accessible greasing and wear points.
• Spare parts available: bushings, pins and blades.
• Technical assistance: workshop support in Argentina.

Technological innovations

Designed to handle, not just to load. Its optimised kinematics and robust construction deliver higher handling performance; the quick coupler, made by Tosama, makes the most of the machine’s capacity and speeds up the work cycle; and the vertical grab picks up the load without dragging it, even in confined spaces.

Each bucket is modelled, validated and built in our workshop, to suit the machine and the material: from 3D modelling to the scale prototype and manufacture.