Constant torque winding machine with an AC Flux Vector Drive. Engineered for those who require a versatile coil winder with extra high pulling power, and an infinitely variable speed range. Perfect for customers winding shaped wire and large heavy coils. The Flux Vector Drive gives you soft, smooth starting and stopping. Controlled acceleration from zero to full speed prevents shock loads, which could break the wire. Up to 8000 lbs. can be loaded on the HD coil winding machine WITHOUT outboard support.