Siemens SIMOTICS M 1FE1 Built-In Synchronous Motor Rotor

Siemens SIMOTICS M 1FE1 Built-In Synchronous Motor Rotor About

The Siemens 1FE1041-6WU30-8BW2 is a SIMOTICS M 1FE1 built-in synchronous motor spare part, rotor only, designed for high-speed precision spindle and machine-tool applications. It is a 6-pole permanent-magnet synchronous motor rotor for a 600 V DC-link, with water cooling, a 105 K thermal rating, and IP00 protection as an individual component. The rotor corresponds to a 25 kW rated motor, with 56 Nm rated torque and 56 A rated current at a rated speed of 4,300 RPM. Its maximum permissible speed is 12,000 RPM, and a Voltage Protection Module (VPM) is required. The rotor uses overhead encapsulation with universal protection, including two temperature sensors, NTC PT3-51F, and NTC K227. It is supplied without a rotor sleeve and is intended to be integrated with the matching stator and cooling system. This rotor is suitable for CNC spindles, high-speed machining centers, precision machine tools, grinding equipment, and other industrial applications requiring high power density, high rotational speed, and reliable thermal monitoring. Siemens' official Industry Mall identifies this exact MLFB as a rotor-only spare part.