Product Description:

The MKE118B-024-BP0-KE4 belongs to the MKE Synchronous Motors series from Bosch Rexroth Indramat and is a servo motor for potentially explosive areas. This configuration is intended for controlled motion in hazardous locations where flammable gases or dust may be present. Its ATEX-compliant housing allows operation in these zones, and the unit is intended for ambient temperatures from 0 to +40 °C. A terminal box on the top of the frame accepts power and feedback lines through 13–16 mm cable glands. The shaft has a DIN 6885 keyway and a shaft seal, and the motor is supplied without a holding brake. The motor also has insulation class 155 F and a sound pressure level of 61.1 dB(A).

At standstill with a winding temperature rise of 60 K, the motor can deliver 28.0 Nm of torque while drawing 15.3 A. These continuous values come from winding code 024, which pairs a resistance of 7.60 Ω with an inductance of 0.580 mH for stable current control. The torque-to-current constant is 2.12 Nm/A, and velocity regulation is supported up to 4000 rpm. Position data are generated by an optical S2 single-turn EnDat 2.1 encoder with 2,048 increments per revolution, and the encoder gives the drive precise single-turn position feedback for closed-loop operation. A discharge capacitance of 10.3 nF aids electromagnetic compatibility, and the voltage constant is 130.0 V/1000 rpm, which affects back EMF at speed.

For short-term demands, the drive may reach 102.0 Nm and an RMS phase current of 69.1 A, which provides added headroom during acceleration in explosive-zone machinery. Dynamic response benefits from a rotor inertia of 0.01940 kg·m², which helps limit overshoot when the motor is coupled to low-mass loads. Mechanical stability is supported by a weight of 45.0 kg, and the sealed shaft helps prevent lubricant migration into the hazardous area. The motor is suited for pumps, mixers, and handling axes installed in ATEX-classified production areas.