Product Description:

Bosch Rexroth Indramat manufactures the MKE118D-027-AP0-KUN as part of the MKE Synchronous Motors series. The unit is a servo motor approved for use in potentially explosive zones, converting controlled drive current into regulated shaft torque for conveyors, mixers, and positioning modules. Its cast enclosure follows UL/CSA construction rules for hazardous locations, and the terminal box mounted on top of the frame simplifies downward cabinet wiring inside pressurized or purged machine compartments.

At a 60 K stator temperature rise, the motor can deliver a continuous shaft load of 48.0 Nm while drawing 22.1 A of RMS phase current. When rapid acceleration is required, the drive may call on a peak torque of 187.0 Nm. Speed regulation is possible up to 3000 rpm, and this limit corresponds to the 027 winding code, 5.70 mH inductance, and 0.350 Ω cold resistance. Environmental protection reaches the IP 65 level, so the housing, keyed shaft, and fitted shaft seal resist sprayed water and dust ingress. Because the motor is supplied without a holding brake, static positioning must rely on the drive itself or an external clamp. An optical single-turn Hiperface encoder with 128 increments transmits rotor position through conductors that exit via the top-mounted terminal box, and the internal discharge capacity of 20.2 nF forms part of the EMC ground path.

The electrical design supports a torque constant of 2.52 Nm/A, allowing the drive controller to predict load response accurately within an ambient range of 0 to +40 °C. A rotor inertia of 0.03620 kg·m² balances acceleration with speed stability, and the total mass of 65.0 kg helps reduce structure-borne noise, keeping the emitted sound level to 61.1 dB(A) ±3 at rated load. Class F insulation withstands the heat associated with a 154.5 V/1000 rpm back-EMF constant, and winding code 027 works with the listed inductance and resistance values to maintain linear current rise.