The Eldan Super Chopper is a heavy duty pre-chopper designed as first step in any recycling process used for initial size reduction of the input material to be further processed in upcoming equipment. A low speed and high torque makes the Super Chopper suitable for processing of tough materials. It is powered directly by Hägglund hydraulic motor and power unit enabling automatic reverse for overload protection thus minimizing knife damages. Adjustable knife clearance optimizes the cutting function. The knives can be reground multiple times on a “flat-bed” grinder ensuring long life time and low operation costs. Unique rotor manufactured and designed for minimum wear.