1FE built-in motors

Built-in synchronous motors for high speeds and high torque applications

1FE built-in motors

The 1FE motors are built-in synchronous motors for high-performance motor spindles. Rotor and stator are ready for installation and have a liquid cooling. The motors are suitable for the highest demands on machining quality, accuracy and smooth running. The spindle drive can be delivered in a high-torque or high-speed version.

1FE built-in motors - the motors for high speeds and high torque applications

  • Compact construction through the elimination of mechanical components

  • Short ramp-up and braking times

  • High degree of shaft stiffness through large inner rotor hole

1FE built-in motors - overview of the product range

* Depending on the version and type
"The detailed technical data can be found on the right-hand side via All about... --> Technical Info --> Technical Overview"

High Speed

High Torque



M-1FE1, M-1FE2

Max. speed*:

Up to 40,000 rpm

Up to 20,000 rpm

Rated power*:

6 - 94 kW

4 - 159 kW

Rated torque*:

up to 300 Nm

up to 1,530 Nm

1FE built-in motors - typical areas of application

Main spindle drive for machine tools with applications for short ramp-up times and high speeds, e.g. lathes, grinding and milling machines.