The dual powered J-1175 portable crusher offers the main electric connection or the onboard genset powerpack configuration. The plant uses the Terex JW42 electrically driven, single-toggle jaw chamber and a heavy-duty VGF feeder. The jaw chamber is hydrostatically driven, which allows reversible operation for clearing blockages, and also provides variable chamber speed. Heavy-duty vibrating grizzly feeder with integrated pre-screen separates material. Material from the pre-screen can be diverted to a stock pile via the by-pass conveyor, or it may join the crushed product on the main belt. The large 11.7-cubic-yard hopper has hydraulically folding sides. A variable speed and independently driven pre-screen with automatic control regulates the feed into the crusher as an option.