The machine used to determine the resistance to wear of aggregates. It consists of a steel frame suitable to house four 200 mm dia.x 154 mm length cylinders (EN 1097-1) or two 200 mm dia.x 400 mm length cylinders (EN 13450). The top machine is enclosed in a sound proof and safety cabinet conforming to CE requirement and stops automatically when the cover is open. The machine is equipped with an automatic counter, which can be preset to the required number of revolutions of the drum or the total working time.

The four standard cylinders 200 mm dia.x 154 mm length are included.

The 400 mm long cylinders and steel spheres are not included and have to be ordered separately. See accessories.