Mixes, homogenizes and emulsifies a fixed volume of liquid; maintains a constant speed despite changes in sample viscosity; may introduce airborne contaminants into samples.

Compact and economical basic dispersers feature an infinitely variable manual speed control; ideal for use in a wide range of analytical research applications.

Stepless dispersers offer homogenization and emulsification flexibility by meeting allowing a fluid speed control; users can refine the speed range in lower increments.