Abrasive belt grinding machine on 2-speed contact wheel for grinding and sanding operations. Height adjustment of the head for a better working position, with absolute freedom of movement for the operator around the contact wheel as the motor is positioned in the rear area. Grooved rubber contact wheel for maximum removal capacity and better exploitation of the width of the abrasive belt. Prepared for the connection of a self-filtering suction system, it can be configured with forks of different diameters compared to the standard one up to 150 mm (version L)