Product Description:

The MKE118B-024-NP1-KUN is a three-phase servo motor built by Bosch Rexroth Indramat for the MKE Synchronous Motors series. Classified as a servo motor for potentially explosive areas, it supplies closed-loop rotary actuation to handling stations, mixers, and similar automated equipment installed in zone-rated production cells. Its explosion-protected housing, together with UL and CSA compliance, allows high-torque motion to be integrated without adding external flameproof enclosures.

At a 60 K winding rise, the motor can sustain a continuous torque of 28.0 Nm while drawing a continuous standstill current of 15.3 A; these values let the drive hold loads without exceeding thermal limits. When acceleration peaks are requested, the controller may command up to 102.0 Nm of torque and 69.1 A RMS, keeping the shaft within its permissible stress range. The maximum mechanical speed is 4000 min⁻¹, so standard 1:1 belt stages can be retained in fast indexing modules. Electrical terminations are routed upward because the connections are on top of the cast terminal box, simplifying vertical cabinet layouts. The 024 winding has an inductance of 0.580 mH and a resistance of 7.60 Ω at 20 °C, and these values influence current loop tuning. The motor weighs 45 kg without the brake, operates in ambient temperatures from 0 °C to +40 °C, and uses class 155 F insulation to tolerate elevated copper temperatures. A shaft with a DIN 6885 keyway handles torque transfer, and a shaft seal is fitted to limit ingress during washdown cleaning.

A spring-applied brake supplies 32 Nm of holding torque to secure vertical axes when power is removed. The torque constant of 2.12 Nm/A provides predictable force per ampere, while the back-EMF constant of 130.0 V/min⁻¹ assists the drive in voltage estimation for field-weakening regions. Dynamic response benefits from a rotor inertia of 0.01940 kgm², balancing load matching against rapid reversals. The 10.3 nF discharge capacity provides a path for static charges in hazardous atmospheres. Sound pressure stays near 61 dB(A), reducing acoustic impact in surrounding work areas.