Epiroc has expanded its range of demolition attachments with two new Combi Cutters designed for low noise, low vibration and precise handling and cutting.
The CC 2300 model is for excavators in the 20- to 30-ton operating weight class, and the CC 3100 is for the 25- to 40-ton class.
The new models have universal and steel-cutting jaw options. The universal jaw is for light- to medium-duty building demolition and heavy-duty industrial demolition involving heavily reinforced concrete. The steel-cutting versions are for cutting steel profiles in general steel structures. Both jaw versions can be used in secondary reduction and material separation, the company says.
Both cutters also have replaceable and reversible cutting blades and can be equipped with jaws of different sizes.
Their hydraulic drive provides endless 360-degree rotation.
Each jaw on the cutters moves independently. That eliminates displacement forces on the excavator and the cutter, enabling controlled demolition of unstable concrete walls, the company says.
The cutters each have two hydraulic cylinders that deliver near constant closing force even when the jaws are almost closed, Epiroc says. The cylinders feature integrated speed valves to increase cycle times and are protected by piston rod guards.
A built-in pressure valve automatically adjusts the cutter jaw in the correct position when grabbing material at an oblique angle, and it protects the excavator and the cutter from potentially damaging reaction forces, the company says.
The jaws can be easily changed on the jobsite because they have a modular design and are mounted on one central bearing pin. They can quickly be removed and fitted as one unit with Epiroc’s CAPS coupling and positioning system. A special guide system that comes with the cutters allows for easy jaw refitting, the company says.