... biological fields. we have different kinds of agitatorsbottom magnetic agitator with propeller impeller, speed from 50-400rpm or 50-800rpm. ... eyedrop, injection, CIP liquid, water, etc...top mechancial agitator with propeller impeller, speed at fix 71rpm or adjustable 20-200rpm ... high viscosity , such as suspension, oil, fat emulsification , etc.... stainless steel blending tank/small mixing tank