Product Description:

The MKE118B-058-PP1-KE6 synchronous servo motor is produced by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Classified as a servo motor for potentially explosive areas, it meets the ATEX housing standard for use on mixers, conveyors, or filling machines located in hazardous zones that contain flammable vapors. By converting regulated three-phase current into accurately controlled torque, the unit supplies closed-loop motion for repeatable process control in industrial automation cells. This arrangement supports applications that need steady speed regulation and consistent positioning while operating in areas with stricter safety requirements.

At a 60 K winding temperature rise, the motor supplies 28.0 Nm continuously while drawing 28.4 A. For acceleration, it can reach 102.0 Nm and 127.6 A. Top speed is 4500 rpm, which suits high-cycle machine axes that need quick motion between indexed positions. The 70 V/1000 rpm voltage constant links motor speed to back EMF, and the 1.15 Nm/A torque constant shows the torque produced per ampere. Inductance of 0.170 mH and resistance of 2.20 Ω support responsive current control, while a discharge capacitance of 10.3 nF helps reduce bearing-current effects. A sound pressure level of 61.1 dB[A] keeps operation relatively quiet for a motor in this output class.

The integrated holding brake applies 32 Nm of static torque to secure the load when power is removed. Rotor inertia of 0.01940 kgm² supports stable motion with a balance between dynamic response and load smoothing during speed changes. Class 155 F insulation supports reliable winding operation, and the motor operates within an ambient temperature range of 0 to +40 °C. Electrical terminations enter a top-mounted terminal box through cables sized from 17.0 mm to 19.5 mm, which helps routing where side clearance is limited. A keyed shaft machined to DIN 6885 transmits torque without slip, the 058 winding code identifies the electromagnetic setup, and the fully assembled unit weighs 45.0 kg. A shaft seal is fitted to help limit dust or fluid ingress around the output shaft.