Brushless synchronous electric torque motor
CyTec
Torque motors are permanent energized synchronous motors, designed as outer rotors. The rotor is positioned as an outer race around the stator, so that the magnetic force attacks on a bigger diameter. That is why the resulting torque is significantly higher compared to inner rotors with the same dimension. With operation with clamped A- and C-axis, e.g. rough machining, the rotor works as a brake with high stall torque. In addition, the rotor is mechanically clamped by a hydraulically charged brass bush.
With swivelling speeds up to 360°/sec and rotational speed up to 100 r.p.m. in connection with the fast linear axes, a real 5-axis simultaneous machining is possible.
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