Given the compact design of modern machines, the heat loss from electrical drives can have an adverse effect on the accuracy of machining. The resulting demands for cold motors with a high power density led to the development of the water-cooled 1PH4 motors.
Furthermore, a combination of high torque and small construction volume (low mass inertia) results in short acceleration and braking times, and thus in a reduction in non-productive time.
1PH4 motors are rugged, 4-pole asynchronous motors with squirrel-cage rotors. Power loss and noise emission are reduced to a minimum. Thanks to the compact design of the motors, high maximum speeds can be achieved.
The motors are equipped with an encoder system for sensing the motor speed and indirect position. In machine tools, the encoder system is capable of C-axis operation as standard – that is, an additional encoder is not required for C-axis operation.