The versatile, end-over-end tube roller and Rotators are designed for mixing samples in both a vertical and horizontal plane. They can be placed in an environment temperature ranges from 5 to 40° and the rotation speed is adjustable, from 0 to 99 rpm. Tube Rollers, Rotators and Rocker are designed to deliver salient performance, accuracy, and reproducible results for all your application needs. - Unique combination of adjustable rotating frame. - A variety of rotation modes, from mild type to somersault type rotation mode. - With reciprocating oscillation function from 20 angel to 99 angle. - Widely used in molecular biology, histo-chemistry, bio-chemistry, clinical applications, etc.