Profile: CAT Scientific manufactures scientific laboratory equipment such as homogenizers, magnetic hotplate stirrers, overhead stirrers, and bottletop burettes. Overhead stirrer is used when the operations involve moderate viscosity (i.e. 50 Ncm torque) samples for commercial laboratory & classroom research. Steplessly adjustable from 50 to 1600 rpm to avoid splashing, the quietly operating 85 watt R50 D 100-liter overhead stirrer is tailor made for operations requiring reproducible stirring processes under comparable conditions, or for parallel experiments involving simultaneous operation of several stirrers. Our versatile R50D overhead stirrer is protected against overload & overheating through an automatic reduction of power. The 10.5 mm corrosion resistant chuck will accommodate stirring rod shafts of 6, 8, and 10 mm in a variety of configurations including propellers & blades.