Torque motors are synchronous motors that are similar in design to asynchronous motors. The main difference is the rotor. It is equipped with permanent magnets. With their high torque and very high efficiency even in partial load ranges, torque motors are particularly well suited as direct drives for mixing tools.
Less maintenance, reduced noise and vibrations, and significant energy savings - in the foundry industry probably up to 25 percent - are advantages that win customers over.
Even upgrading from asynchronous motors to torque motors is possible without a problem. The retrofitting, including the converter technology, takes about a weekend. The result is a practically maintenance-free motor.