The flagship of the multipurpose road construction attachments is able to crush rocks, grind asphalt and do soil stabilization as well as milling slabs - with a working depth up to 50cm. When designing this unit, special attention was given to the development of the variable displacement crushing chamber. Two special piston-cylinders allow a perfect synchronization of the rotor when penetrating the soil. the crushing chamber bolt-on protections and the adjustable counter blade will guarantee the highest performance in the crushing process.