The Benchmark Rotating Mixer provides gentle to vigorous mixing of laboratory samples up to 50ml. with an adjustable speed of 1-40 rpm and tilt angle, the Rotating Mixer is ideal for a variety of applications, from mixing blood samples to the preparation of homogenous dispersions. Intense mixing, a unique reversing mode is available. In reversing mode, the mixer rotates for up to 360° then stops and rotates in the reverse direction. This back and forth motion occurs repeatedly until the set time has expired