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Terex Finlay, based in Northern Ireland, has introduced its new primary mobile jaw crusher to its line of tracked mobile crushing, screening and recycling equipment. The company’s J-1170AS is a high-performance mobile jaw crusher built around the company’s 1100-millimeter-by-700-millimeter jaw crusher, with a proven track record in recycling, aggregate production and mining applications, according to Terex. Terex says a key new feature of this model is the on-board detachable sizing screen.
The J-1170AS jaw chamber provides material reduction and product sizing in the processing of blasted quarry rock and ore material. The jaw chamber also is available with an optional hydraulic release, which the company says is helpful when crushing construction and demolition debris, Terex says. The hydraulic release option has an automatic overload protection system to prevent damage by uncrushable items in the feed material.
The machine can be powered by either a Tier 3-Stage 3A Caterpillar C9 350-horsepowered engine or a Tier 4i Scania DC9 70A 350-horsepowered engine.
Hydrostatic transmission of the jaw chamber offers operators reversible operation in the event of a blockage. Terex says the hydrostatic system also provides variable chamber speed to suit given applications.
The machine has a heavy-duty variable speed vibrating grizzly feeder (VGF) with integrated prescreen, providing an aggressive action to separate fines material efficiently, Terex describes. The variable speed VGF ensures continuous choke feeding of the crushing chamber for optimal productivity, according to Terex. Material from the prescreen can be diverted to a stock pile via the on board by-pass conveyor, or can join the crushed product on the main belt.
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Terex says the large hopper has hydraulically folding sides and an innovative hydraulic self-locking mechanism to provide efficient and faster machine set up and tear down times.
“The J-1170AS with its onboard sizing screen will enable operators to produce a spec’d product without the need for a secondary screen,” says Nigel Irvine, Terex sales and marketing director.
Irvine continues, “The sizing screen can also be detached without the need for additional lifting gear, which means that the machine can be used as ‘straight’ J-1170 jaw crusher, giving the operator versatility for applications that do not require sizing. When you combine these factors with the excellent crushing capabilities and the ease with which the machine can be transported, it ensures the demands of owner-operators and crushing contractors are easily met.”
Additional features of the primary mobile jaw crusher include:
- on-board after screen delivers a single-sized product removing the need for a second machine;
- after screen system can be removed quickly, allowing the operator to use as a standard unit, and giving the operator versatility depending on the application;
- automatic variable speed VGF ensures continuous choke feeding of the crushing chamber for optimal productivity;
- high-powered hydrostatic drive ensures precise chamber control and reverse functionality for clearing blockages and assisting in demolition and recycling applications;
- hydraulic assisted closed side setting adjustment minimizes downtime and offers quick adjustment;
- compact dimensions and quick setup make the J-1170AS the ideal solution for contract crushing as well as demanding in-pit applications’
- hydraulically assisted closed side setting adjustment minimizes downtime and offers quick adjustment; and
- safe, quick and easy service points for regular maintenance.
Visit www.terex.com/mobile-processing-equipment/en/index.htm for more information.