Glas-Col's variable-speed homogenizer drives feature totally enclosed motors. 
 
For high-speed operations, the direct-drive shaft is recommended. The geared shaft, on the other hand, generates high tourque and lower speeds. 
 
The homogenizer drive's electronic motor controller delivers versatile and reliable performance and maintains speed. This controller also provides: 

1. Smooth rotation and repeatability, reduced motor temperature, and reduced noise thanks to filtered circuitry. 
   
2. a switch for reversing pestle direction during homogenizing or allowing either motor shaft to rotate in the proper direction for use with the quick change chuck. 
   
3. cord connection to the motor so control can be placed away from corrosive hood environments for ease of access.