Product Description:

The Bosch Rexroth Indramat MKE118D-027-DG0-KUN is a servo motor for potentially explosive areas in the MKE Synchronous Motors series. It converts drive current into rotational motion for conveyors, mixers, and positioning axes that operate under hazardous-duty regulations. The housing follows UL/CSA requirements and carries an IP65 seal, so it can be mounted on machinery without an extra enclosure. A plain shaft with a frontal centering hole transmits torque, and power is routed through a top-mounted terminal box.

At a 60 K winding rise, the motor delivers a continuous standstill torque of 48.0 Nm while drawing 22.1 A. The 027 winding has a torque constant of 2.52 Nm/A, an inductance of 5.70 mH, and a resistance of 0.350 Ω; these values influence current demand, dynamic stiffness, and copper loss in the connected drive controller. Peak speed reaches 3000 rpm, and an optical multiturn EnDat 2.1 encoder, model M2, provides 2,048 increments for absolute position feedback. A discharge capacity of 20.2 nF helps reduce shaft voltage, and the shaft seal helps prevent lubricant escape. Because the motor is supplied without a holding brake, mechanical locking must be provided externally when fail-safe stopping is required.

Dynamic events are handled with a maximum torque of 187.0 Nm and a corresponding RMS current ceiling of 99.6 A, giving the drive reserve for acceleration spikes in explosive-zone duty cycles. The laminated rotor has a moment of inertia of 0.03620 kg·m², allowing responsive speed changes without oscillation. Thermally, insulation class 155 F and an ambient range of 0 to +40 °C support continuous service. The motor weighs 65.0 kg, generates 61.1 dB[A] ±3 of sound pressure, and uses a DIN 332 DS thread on the plain shaft for secure coupling, while the voltage constant of 154.5 V/1000 rpm helps the controller predict back EMF.