The Var-Spe speed variator allows you to make adjustments from zero rpm up to the speed of the electric motor with a ratio of 1:30 and up to 1:35 with 60 Hz motors (no inverter or mechanical variator can reach such wide speed ranges).
The Var-Spe variator has an adjustable torque limiter that is triggered in the event of an overload. As soon as the jam ceases, the variator starts working again. If you wish, it is also possible to provide for a more sophisticated solution with a simple and inexpensive pressure switch that can turn the electric motor off or trigger an alarm in case of prolonged jams.
We can supply our variators with remote controls. In this case, an electronic board will monitor the variator adjustment system that allows using a 4-20 mA reference signal (other possible signals are 0-10V, potentiometer, digital signals). Click here to learn more.