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 in S1 duty
Higher torque – up to 60 % – with the same active component volume, consequently more compact machine design compared to SIMOTICS M-1PH2
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 – of advantage with regard to the bar capacity of automatic turning machines and results 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-1FE built-in motor, drive control and CNC offers further opportunities for rationalization, such as shorter workpiece machining times and fewer clamping faces.
