The new Terex® Finlay J-1170 is a high performance primary mobile jaw crusher built around the Terex® 1100 x 700 mm (44“ x 28“) jaw crusher, with a proven track record in recycling, aggregate production and mining applications (Fig.).
The Terex 1100 x 700 mm (44“ x 28“) jaw chamber provides excellent material reduction and product sizing in the processing of blasted quarry rock and ore material. The jaw chamber is also available with optional hydraulic release, an excellent feature when crushing construction and demolition debris. The hydraulic release option has an automatic overload protection system to prevent damage by uncrushable items in the feed material. The machine is powered by either a Tier 3/Stage 3A Caterpillar C9 261 kW (350 hp) or a Tier 4i Scania DC9 70A 257 kW (350 hp).
Hydrostatic transmission of the jaw chamber offers operators reversible operation in the event of a blockage. The hydrostatic system also provides variable chamber speed to suit given applications. The crusher features hydraulic assist Chamber CSS (Closed Side Setting) adjustment, and can be changed in a matter of minutes. The machine has a heavy duty variable speed vibrating grizzly feeder (VGF) with integrated pre-screen, providing an aggressive action to separate fines material efficiently. The variable speed VGF ensures continuous choke feeding of the crushing chamber for optimal productivity. Material from the pre-screen can be diverted to a stock pile via the on board by-pass conveyor, or join the crushed product on the main belt. The large 9.6 m³ (12.55 yd³) hopper has hydraulically folding sides and an innovative hydraulic self-locking mechanism to provide efficient and faster machine set up and tear down times.