Siemens SIMOTICS M 1FE1 Built-In Synchronous Motor

Siemens SIMOTICS M 1FE1 Built-In Synchronous Motor About

The Siemens 1FE1084-6WR31-6NA2 is a SIMOTICS M 1FE1 built-in synchronous motor designed for high-performance spindle and precision machine-tool applications. It is a 4-pole permanent-magnet synchronous motor with a 600 V DC-link voltage, 105 K thermal rating, and IP00 protection. The motor consists of individual stator and rotor components and is designed for water-cooled operation. It provides 31 kW rated output power, 130 Nm rated torque, and 60 A rated current at a rated speed of 2,300 RPM. Its maximum permissible speed is 9,000 RPM, and a Voltage Protection Module (VPM) is required. The motor is intended for integration into specialized spindle assemblies rather than conventional standalone mounting. Its high torque and power density make it suitable for CNC machine tools, heavy-duty spindles, precision machining centers, grinding equipment, and other industrial applications. The water-cooled construction supports effective heat dissipation during continuous operation, while the permanent-magnet synchronous design provides precise speed control and high dynamic performance. The exact MLFB is confirmed as a Siemens SIMOTICS M built-in synchronous motor configuration.