Product Description:

The MKE118D-035-PP3-KUN is a three-phase servo motor made by Bosch Rexroth Indramat for the MKE Synchronous Motors series. Classified as a motor for potentially explosive areas, it combines spark-free construction with an integral holding brake so position security is maintained during power loss. In automated material handling cells, filling stations, or mixers located in Zone 2 or Class I Div 2 environments, the unit converts drive controller commands into precise rotary motion while meeting the manufacturer’s UL/CSA housing standard.

The housing is sealed to IP 65, so dust ingress and water jets do not reach the internal windings during washdown. At standstill and with a 60 K winding temperature rise, the shaft can deliver 48.0 Nm, which is the continuous torque the motor supports without overheating. Sustaining that torque draws a continuous current of 29.8 A from the inverter. When fast indexing or acceleration is needed, the electromagnetic system tolerates a peak torque of 187.0 Nm and a corresponding maximum current of 134.3 A, so the connected drive must be sized to match that current limit. The mechanical section is balanced for a top speed of 3000 rpm, enabling direct coupling to gearboxes or belt stages without overspeeding the rotor. A DIN 6885 keyway on the output shaft transfers torque, and a shaft seal helps prevent vapor ingress along the journal.

The magnetic circuit produces torque in proportion to the current, quantified by a constant of 1.87 Nm/A, so closed-loop regulators can predict load response precisely. Dynamic response is aided by the rotor moment of inertia of 0.03620 kgm², and this moderate value supports rapid speed changes while damping oscillations in larger load trains. Even with the brake excluded, the frame weighs 65.0 kg, adding thermal mass that slows winding temperature rise during long duty cycles. The added mass also helps the assembly resist vibration on structurally flexible machines.