IRock's Magnum force

By Lindsay Gale24 September 2013

IRock now offers three models in its Magnum range of primary impact crushers

IRock now offers three models in its Magnum range of primary impact crushers

IRock Crushers has introduced a new three model line-up of primary impact crushers in the shape of the Magnum 15, 20 and 30, which it says perform well when processing material arisings from quarrying, demolition waste or recycling.

All three feature Cat Tier 3/Stage IIIA engines delivering 261 kW (350 hp), 328 kW (440 hp) and 410 kW (550 hp) and offer a maximum throughput of 350, 500 and 650 tonnes/hour respectively. Each includes three auxiliary outlets for transfer or stacking conveyors and is fitted with a PT Tech clutch that decreases power loss and increases fuel efficiency, said Irock. The three units can be fitted with Irock’s patented Hydraset Hopper that operates from an internal power pack that allows it to be easily detached and placed on a trailer in minutes without the need for a lifting device. This is essential on the Magnum 30, since it cannot be legally transported without removal of the hopper as a result of weight limitiations.

A vibrating feeder with heavyd duty two-stage tapered grizzly removes fines to allow only large material into the hopper. Feed openings on the three machines range in size from 1 x 0.8 m (40 x 32 inch) to 1.4 x 1 m (56 x 43 inch). Hydraulically adjustable aprons with three stage crushing allow better control over sizinf and the four-bar impactor design offers maximum material reduction that minimises wear and enhances performance and production, says the company.

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