MKE118D-027-BG3-KE4 Bosch Rexroth Indramat
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MPN: R911308969
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The Bosch Rexroth Indramat MKE118D-027-BG3-KE4 is a servo motor from the MKE Synchronous Motors series, designed for potentially explosive areas and compliant with ATEX housing standards. It features a continuous torque of 48.0 Nm at standstill, a maximum torque of 187.0 Nm, and operates with an IP65 rating and insulation class F. The motor comes with a plain shaft, a holding brake providing 70 Nm of torque, and uses an optical singleturn EnDat2.1 encoder with 2,048 increments.
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Product Description:
The MKE118D-027-BG3-KE4 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the MKE Synchronous Motors series. It is intended for potentially explosive areas where motion axes must meet ATEX zone requirements in chemical mixing systems, paint booths, and solvent handling lines. The unit converts commanded drive current into controlled mechanical output so conveyors, mixers, and positioning tables can operate with regulated torque and speed in ambient temperatures from 0 to +40 °C.
At a 60 K winding temperature rise, the motor sustains a stall torque of 48.0 Nm while drawing a continuous current of 22.1 A. This operating point is matched to winding code 027, which uses 0.350 Ω resistance and 5.70 mH inductance to balance copper loss and dynamic response. When controlled by the drive, the rotor can reach a maximum speed of 3000 rpm. An optical single-turn EnDat 2.1 encoder with 2,048 increments monitors position and velocity. A torque constant of 2.52 Nm/A provides a linear relationship between phase current and shaft output, and the IP 65 housing helps protect the motor against dust and low-pressure water jets while the top-mounted terminal box accepts 13–16 mm cable glands for power and feedback wiring.
For brief overloads, the drive can supply up to 187.0 Nm of peak torque and 99.6 A RMS without exceeding the thermal limit. The rotor has a moment of inertia of 0.03620 kg m², which supports stable response during rapid motion changes with limited overshoot. A spring-applied brake provides 70 Nm of holding torque so vertical loads remain secure when power is removed. The motor also has a plain shaft with a DIN 332 DS thread, a front centering hole, 20.2 nF discharge capacitance for EMC, a sound pressure level of 61.1 dB(A), a weight of 65 kg without the brake, and ATEX-compliant construction.
