The 1PM4 motors are induction motors with a hollow shaft. They satisfy the highest demands on maximum speed, smooth-running and vibration properties. The motors are prepared for the mounting of a rotary inlet for feeding liquids (cooling lubricants) through the rotating motor shaft for the internal tool cooling. The motors are optimized for applications with extreme ambient conditions (temperature, pollution, humidity) that do not permit air cooling.

1PM4 induction motors - the liquid-cooled hollow shaft motors

1PM4 induction motors - overview of the product range

1PM4 induction motors - typical areas of application

Main spindle drive for machine tools (directly coupled) with internal tool cooling or directly driven tools with internal cooling.
For applications