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- Compact design (e.g. for turning machines and vertical milling machines) by dispensing with mechanical components, such as motor switch armature, belt drive, gearbox and spindle encoder
- High power density thanks to water cooling
- Maximum speeds up to 40000 rpm, torques up to 1530 Nm (1128 lbf-ft) in S1 duty
- Higher torque – up to 60 % – with the same active component volume, consequently more compact machine design compared to SIMOTICS M-1PH2 (asynchronous motors)
- Extremely short ramp-up and braking times (50 %) thanks to higher torque compared to SIMOTICS M-1PH2
- Cold rotor due to excitation using permanent magnets in the lower speed range and lower power losses in the rotor, resulting in reduced bearing temperature rise and spindle expansion
- The stator and rotor are ready to install, no finishing is necessary
- The absence of drive transverse forces permits extremely high accuracy on the workpiece thanks to smooth, accurate spindle motion even at very low speeds
- Larger rotor inner bore than squirrel-cage rotor of asynchronous motors, but with the same outer diameter – advantageous with regard to the bar capacity of automatic turning machines and resulting in higher spindle stiffness due to larger shaft diameters for milling spindles
- Increased rigidity of the spindle drive, achieved by mounting the motor components between the main spindle bearings
- Less cooling capacity required for the same power compared to SIMOTICS M-1PH2, i.e. greater efficiency
- Only one encoder (hollow-shaft measuring system) for sensing motor speed and spindle position
- Simple servicing by replacing complete motor spindles
- Compatible system of SINUMERIK, SINAMICS S120 and motor, therefore fast commissioning is ensured
- Higher machine productivity:
The permanently excited motor spindles (PE spindles) increase the power density and economic efficiency of CNC machines. The optimized combination of SIMOTICS M-1FE1 built-in motor, drive control and CNC offers further opportunities for rationalization, such as shorter workpiece machining times and fewer clamping faces.
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