The RM5 is a versatile heavy duty roller mixer capable of turning large drums, barrels or a carrier carousel. By altering the fixing points in the carousel, different mixing actions can be obtained, including end-over-end, roll as well as tilt and roll. Carousels to secure virtually any tube, flask, bag or tube rack can be supplied. The long-life polyurethane rollers are mounted on heavy duty shafts with precision ball bearings and are driven by a custom microprocessor controlled drive system, the large digital display can show set speed or actual speed. The inbuilt electronic timer can be set for 0-99 minutes or 0-99 hours, memory buttons allow for up to 3 speed / time patterns to be stored.