The apparatus consists of a motorized drive unit mounted on a baseplate and connected to two or four drums which rotate at a speed of 20 r.p.m. This test method has been developed for assessing the deterioration of rocks over a period of time when subjected to water immersion.

The test drums are manufactured from 2.00 mm mesh, 140 mm dia. x 100 mm long. Two drums are already included, while two additional ones can be ordered separately, see accessories. The drums can be mounted / disassembled easily with the quick-release drive units.

The machine mounts a digital display for the visualization of the residual testing time. The tank assemblies are filled with water to a level 20 mm below the drum axis. The water level is indicated by a mark.

Overall dimensions (lxdxh) considering the two extra drums (4 in total): 1151x413x305 mm

Overall dimensions (lxdxh) with two drums standard included: 733x413x305 mm

Overall weight considering the two extra drums (4 in total):  33.5 kg

Overall weight: 22.5 kg.