The Burr King 20 dis grinder comes in 3 Phase, 60 Hertz electronic options.
- Model 20 : Disc Speed fixed at 1725 RPM
- Model 20B : Fixed speed with a 10 ft. lb. mechanical disc brake
- Model 20VB : Continuously adjustable from 170 to 1725 RPM with an adjustable electronic disc brake.
The Model 20VB speed controller includes all control and overload features of a standard magnetic starter in addition to the solid state frequency controller and electronic brake.
