Product Description:

The MKE118D-035-PP0-KE6 is a synchronous servo motor manufactured by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Intended for potentially explosive areas, it provides closed-loop rotary motion for conveyors, mixers, and filling machines that require ATEX-rated drives. The motor serves as the driving element in hazardous-zone automation, converting inverter current into controlled torque and speed.

With a 60 K winding temperature rise, the motor delivers a continuous standstill torque of 48.0 Nm while drawing 29.8 A of phase current from the drive. The 035 winding has 3.20 mH inductance and 0.210 Ω resistance at 20 °C, values used for current-loop tuning. For short bursts, the shaft can reach 187.0 Nm and the inverter may source up to 134.3 A; with adequate bus voltage, this enables speeds up to 3000 rpm. The discharge capacity of 20.2 nF limits common-mode voltage on the cable. Connections are made in the terminal box mounted on top of the frame, and the gland accepts 17.0 mm to 19.5 mm conductors. Class F (155 °C) insulation protects the stator, the housing is rated IP65 against dust and water jets, and operation is permitted between 0 °C and +40 °C. The motor is supplied without a holding brake, uses a shaft with a DIN 6885 keyway, includes a shaft seal, and produces 61.1 dB[A] sound pressure.

The enclosure uses a protection concept that helps prevent ignition sources in hazardous installations. A torque constant of 1.87 Nm/A allows the controller to translate commanded current directly into load torque, while the back EMF slope of 114.5 V/min⁻¹ helps set voltage demand at higher speed. Dynamic performance benefits from the rotor's 0.03620 kgm² inertia, balancing rapid acceleration with smooth running of connected machinery. Overall mass is 65.0 kg, which helps damp vibration and store heat during intermittent overloads.