Product Description:

The MKE118D-035-BG3-KE6 is a synchronous servo motor produced by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Classified as a servo motor for potentially explosive areas, it is intended for axis drives in chemical or paint lines where compliance with hazardous-area rules is required. By converting regulated three-phase power into torque, the unit supplies closed-loop motion to conveyors, mixers, or positioning tables that must maintain precision in flammable atmospheres.

Electrical performance at standstill includes a continuous torque of 48.0 Nm that can be produced while drawing 29.8 A with a 60 K winding temperature rise. For short-duty periods, the drive can supply up to 187.0 Nm, and the matching inverter must tolerate a peak phase current of 134.3 A. Speed regulation extends to 3000 rpm, supported by a torque constant of 1.87 Nm/A and a back EMF constant of 114.5 V per 1000 rpm, both matched to the 035 winding. The stator’s 0.210 Ω resistance and 3.20 mH inductance affect current ripple, and a discharge capacitance of 20.2 nF helps limit voltage transients. Position feedback comes from an optical single-turn EnDat 2.1 encoder, model S2, delivering 2,048 increments for precise digital commutation.

The housing meets IP 65 ingress protection, and the motor carries ATEX certification for hazardous locations. A permanent-magnet rotor with an inertia of 0.03620 kg·m² is paired with a brake that adds 70 Nm of static holding capacity to secure vertical loads. Operation is permitted from 0 °C to 40 °C, and insulation class 155 F supports the associated thermal rise. Power and signal conductors enter through a top-mounted terminal box sized for 17.0–19.5 mm glands, and the motor uses a plain shaft with a frontal centering hole, a DIN 332 DS thread, and a shaft seal. Sound pressure is 61.1 dB(A), and weight including options is 65.0 kg.