The Powerscreen® 1150 Maxtrak Pre-Screen is a high performance, medium sized track mobile rock crusher with an independent pre-screening system. At the heart of the Maxtrak is the Automax® cone crusher with hydraulic setting, tramp release & unblocking system. Its unique crushing action provides excellent capacity, high reduction & good product cubicity for the production of high quality aggregate & sub-base materials. The added pre-screen option allows a sized product or dirt to be removed from the feed prior to entering the cone, thus maximising output capacity and quality.