Product Description:

The MKE118D-027-BG0-KI4 is a servo motor manufactured by Bosch Rexroth Indramat for the MKE Synchronous Motors series. Certified for potentially explosive areas, it supplies closed-loop torque and speed to conveyors, mixers, or processing axes in hazardous industrial zones where ignition sources must be minimized. Integrated optical feedback and flameproof construction allow the unit to fit directly into automation cells without auxiliary enclosures while still supporting precise axis control.

Rated performance includes a continuous standstill torque of 48.0 Nm, produced while the windings carry 22.1 A at a 60 K temperature rise. For brief overload, the motor can reach a peak torque of 187.0 Nm and accelerate up to 3000 rpm. A torque constant of 2.52 Nm/A links drive current to shaft output, and winding data of 5.70 mH inductance with 0.350 Ω resistance supports inverter matching. The induced voltage at rated speed is 154.5 V, and the motor’s discharge capacity is 20.2 nF for EMC planning. The S2 optical encoder provides 2,048 increments in single-turn EnDat 2.1 format for precise commutation. Operation is permitted between 0 °C and +40 °C ambient, insulation class 155 F limits internal temperature, and the motor is supplied without a holding brake.

Cabling enters through a 13–16 mm gland on the top-mounted terminal box, and the conductors must tolerate a maximum current of 99.6 A. The rotor inertia of 0.03620 kg·m² balances dynamic response against load smoothing, while the housing mass of 65.0 kg helps with heat dissipation and vibration damping. The motor has an IP 65 rating. It also uses a plain shaft with a frontal centering hole, a DIN 332 “DS” thread, and a shaft seal. Connection direction is top, winding code is 027, and the discharge path is sized for hazardous-area grounding requirements, while the measured sound pressure level is 61.1 dB(A).