Product Description:

The MKE118D-027-AG0-KE4 from Bosch Rexroth Indramat is a servo motor in the MKE Synchronous Motors series for use in potentially explosive areas. By supplying closed-loop rotational power to actuators and conveyors, it fits hazardous-zone automation where ignition sources must be tightly controlled. The motor’s ATEX-compliant housing, plain shaft with a frontal centering hole, and terminal-box wiring allow installation on geared or belt-driven machinery in chemical or paint environments. This layout supports use where protected cable entry and enclosed motor surfaces are important around volatile vapors or combustible residues.

At a 60 K winding temperature rise, the motor supplies a continuous shaft torque of 48.0 Nm while drawing 22.1 A. For acceleration bursts, the winding tolerates up to 99.6 A RMS and can produce a peak torque of 187.0 Nm. The rated mechanical speed reaches 3000 rpm. A torque constant of 2.52 Nm/A, an inductance of 5.70 mH, and a resistance of 0.350 Ω help the drive match current response to the motor. A 20.2 nF discharge capacitance helps filter transients at the terminal box, and these electrical values describe the load behavior the inverter must accommodate.

The rotor moment of inertia is 0.03620 kg·m², which balances response time with load damping. A single-turn Hiperface optical encoder, model S1, provides 128 increments, and the top-mounted connections route the conductors upward through a terminal box sized for 13 to 16 mm cables. The enclosure maintains an IP65 seal, and a shaft seal helps protect the bearing area from dust and moisture. Operation is specified from 0 °C to +40 °C, and insulation class 155 F supports the generated heat while sound pressure remains at 61.1 dB[A] ±3 dB. The plain shaft has a DIN 332 "DS" thread, the motor is supplied without a holding brake, the overall mass is 65.0 kg, and the back-EMF constant is 154.5 V/min⁻¹.