Our AC motor systems exceed others in wide range torque, power and velocity performance. Because we style and build these systems ourselves, we have complete knowledge of what goes into them. Among other things, we maintain knowledge of the components being used, the suit between the rotor and shaft, the electrical design, the natural frequency of the rotor, the bearing stiffness ideals, the component stress amounts and heat transfer data for various parts of the engine. This allows us to push our designs with their limits. Combine all this with this years of field experience relative to rotating machinery integration and it is easy to see how we can give you the 
ultimate benefit in your powerful equipment.
We have a huge selection of standard designs of powerful motors to pick from in an array of cooling and lubrication configurations. And we lead the industry in lead situations for delivery; Please note that we possess the capability to provide custom designs to meet your specific power curve, speed performance and interface requirements. The tables below are performance characteristics for standard electric motor configurations; higher power, higher rate, and higher torque levels can be achieved through custom design.
Externally, the Zero-Max Adjustable Speed Drive consists of a rugged, sealed cast case, an input shaft, output shaft and speed control. Velocity of the result shaft is regulated precisely and easily through a control lever which includes a convenient locking mechanism or a screw control to carry speed at a desired setting. Adjustable speed drive models are available with output in clockwise or counter-clockwise rotation to meet up individual swiftness control requirements. Two adjustable swiftness drive models are equipped with a reversing lever that allows clockwise, neutral and counter-clockwise operation.
The general Variable Speed Electric Motor principle of operation of Zero-Max Adjustable Speed Drives gives infinitely adjustable speed by changing the length that four or even more one-way clutches rotate the output shaft when they move backwards and forwards successively. The amount of strokes per clutch per minute depends upon the input rate. Since one rotation of the insight shaft causes each clutch to move back and forth once, it is readily apparent that the input quickness will determine the number of strokes or urgings the clutches give the output shaft each and every minute.