MKE118D-027-AG3-KE4 Bosch Rexroth Indramat
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MPN: R911308514
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The Bosch Rexroth Indramat MKE118D-027-AG3-KE4 is a servo motor from the MKE Synchronous Motors series designed for potentially explosive areas. This motor features a plain shaft with frontal centering hole, a holding brake with 70 Nm torque, and an IP65 rating with ATEX housing standard compliance. It offers a continuous torque at standstill of 48 Nm, a maximum torque of 187 Nm, and a maximum velocity of 3000 per minute, with a weight of 65 kilograms without brake.
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Product Description:
The MKE118D-027-AG3-KE4 is a servo motor manufactured by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Classified as a servo motor for potentially explosive areas, it supplies regulated torque and speed to industrial equipment such as agitators, conveyors, and filling systems operating where ignition risks are present. Its design combines explosion-proof construction with precise electrical control so automation tasks can proceed without compromising plant safety.
At standstill, the motor produces 48.0 Nm while drawing 22.1 A, a pairing based on the 027 winding’s 0.350 Ω resistance and 5.70 mH inductance. During peak acceleration, output rises to 187.0 Nm with a crest current demand of 99.6 A, and the electromagnetic circuit provides 2.52 Nm/A, making current feedback a direct torque reference. Position data come from an S1 optical single-turn Hiperface encoder that delivers 128 increments, and its 20.2 nF discharge path helps keep signal levels stable. A 70 Nm holding brake locks the plain shaft when power is removed. Mechanical coupling is supported by the DIN 332 DS thread, a front centering hole, and a shaft seal that helps block lubricant escape. Cables enter through 13.0 mm to 16.0 mm glands on the top-mounted terminal box, and the 0.03620 kg·m² rotor inertia supports quick response without excessive drive demand. Operating noise remains 61.1 dB[A] ±3.
The motor reaches 3000 rpm, and a back-EMF constant of 154.5 V per 1000 rpm allows the inverter to size its DC link for controlled braking. An IP65 enclosure shields internal parts from dust and water jets, while the cast housing meets ATEX requirements so the unit can operate in Zone 2 gas atmospheres at ambient temperatures from 0 °C to +40 °C. The motor uses insulation class 155 F and permits a 60 K winding rise. The motor weighs 65.0 kg without the brake, and the top cable orientation helps reduce space conflicts during vertical or horizontal mounting.
Frequently Asked Questions about MKE118D-027-AG3-KE4:
Q: What is the allowable ambient temperature range for the MKE118D-027-AG3-KE4 motor?
A: The MKE118D-027-AG3-KE4 operates safely in ambient temperatures between 0 and +40 °C.
Q: What are the key shaft features of the MKE118D-027-AG3-KE4 motor?
A: This model features a plain shaft with a frontal centering hole and a DIN 332 compliant 'DS' thread.
Q: What is the maximum torque produced by the MKE118D-027-AG3-KE4?
A: The MKE118D-027-AG3-KE4 provides a maximum torque output of 187.0 Nm.
Q: How much holding brake torque is available on the MKE118D-027-AG3-KE4?
A: The holding brake delivers a torque of 70 Nm for secure shaft locking.
Q: What level of ingress protection does the MKE118D-027-AG3-KE4 have?
A: This motor is rated IP65, offering dust-tight construction and protection against water jets.
