Sale and installation of a Berti CKT/SB80 model crusher or shredders, mounted on a customer's excavator. Several models of hydraulic mulching head for mini excavators from 3.5 to 5.5 tonnes, Designed to mulch grass, stems and bushes up to a diameter of 3 to 4 cm. Compact and very efficient, this machine can be used for the maintenance of green spaces, agriculture, etc.