Three new Cat® B-Series Mobile Shears_S320B, S325B and S340B_round out the six-model lineup of Caterpillar® designed shears. The new shears feature a redesigned lower jaw, wider jaw opening, new knife-retention system, new jaw-adjustment system, greater hydraulic power and boom or stick mounting options. The overall design assures optimum productivity, reliability and serviceability in the toughest metal reduction applications.

The new Cat B-Series models, featuring a robust 360-degree hydraulic-rotation system, match the capabilities of a broad range of Caterpillar hydraulic excavators used in scrap-metal processing and in demolition operations that require reduction of large structural elements.

Increased hydraulic power in the new Cat B-Series models allows a wider jaw opening to handle a greater volume of material, such as large structural steel pieces, large diameter pipe and bundles of pipe. In addition, the larger opening provides improved visibility for the operator when working at a distance and aligning the jaws around material.

High-strength retaining bolts thread directly into the knife sections of both the upper and lower jaws. Bushings around the bolts help prevent loosening, and a slotted shim plate, which slips over the bushings, simplifies knife changes. The four main knives, plus the side and front knives, are fully reversible and provide four long-lasting cutting edges. The weld-on piercing tip at the end of the upper jaw is made of extremely durable hardened steel. The tip can be repeatedly hardfaced (or easily replaced) to maintain upper jaw effectiveness.

The Cat B-Series shears also feature a newly designed adjustable hub to maintain an optimum cutting position between the upper and lower jaws as the knives wear. The new hub uses thicker (5 mm) shims for easier adjustment and has a new bolt-retention system that keeps the assembly tight.

In addition, a new housing protects the jaw cylinder through its complete cutting cycle, and a replaceable (bolt-on) wear plate protects the outside of the upper jaw. Large access panels (top, bottom and sides) and a jaw service lock assure fast and safe routine maintenance.