Drill & Blast

Tracked mobile crushing and screening line debuts at CONEXPO

Attendees of the 2011 CONEXPO/CONNAGG in Las Vegas in late March were the first to see Atlas Copco?s new line of track-mounted mobile crushers and screens. The product range, previously owned and managed by Hartl Powercrusher in Germany, includes 11 different models of rock crushers ? comprising jaws, impactors and cones – with a crushing capacity of 242 to 606 tonnes per hour and six screener models with a capacity of 242 to 485 tonnes per hour.

Atlas Copco?s four jaw crusher models incorporate the exclusive Quattro movement, which is made possible by an up-thrust toggle plate position. This causes a figure eight motion in the moving jaw, which increases the feeding capacity and produces a post-crush at the crusher outlet.

The smallest of the mobile jaw crushers is the PC3 and the largest is the PC6, with a larger PC8 in development. The PC3, which crushes primary rock or recycled material, can produce up to 330 tonnes of aggregate per hour while the PC6 can produce up to 500 tph.
There are six Atlas Copco Powercrusher impact crusher models, all of which use optimised geometry in the crusher box with hydraulically adjustable swing beams. The result is a minimal percentage of oversized material, and high reduction ratios and throughputs.
The lone mobile cone crusher ? the PC1000 – features cones designed to accept an ?all-in? feed. This increases the particle on particle crushing, which in turn increases the quality of the end material shape, decreases wear and eliminates the need for pre-screening.
Eric Amberson, the US product line manager for Powercrusher, said that Atlas Copco?s acquisition of Powercrusher was a ?natural progression? because the features of the product fit well with its drill rig business.

He said that where most other mobile plant brands offer remote control operation as an option for customers, this will be standard on the Powercrusher line.

?We don?t do options,? Eric declared. ?If we are going to supply a product, we want you to have it all. We want it to be the best product that you can buy. So we take all the optional features out and we say they?re standard. Even if you intend to use the machine for primary rock and won?t run steel through it, the machine will have a magnet on-board that will enable you to use it for recycling applications if you change your mind.?

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