Product Description:

The MKE118D-035-NG0-KE6 belongs to the MKE Synchronous Motors series from Bosch Rexroth Indramat. As a servo motor intended for potentially explosive areas, it supplies position and speed control to automation axes installed in chemical, paint, or gas-handling zones where ignition sources must be limited. The motor integrates into certified drive packages and provides closed-loop torque generation without external gear reduction.

Its thermal reference point of 60 K supports a continuous torque of 48.0 Nm while drawing a continuous standstill current of 29.8 A, giving the drive system a baseline for inverter sizing and heat dissipation. For short-duty peaks, the winding can accept up to 134.3 A RMS, allowing a momentary torque rise to 187.0 Nm. The shaft can accelerate to 3000 rpm without leaving the permitted mechanical range. Winding code 035 identifies the motor's electromagnetic layout; the electrical values include 3.20 mH of inductance, 0.210 Ω of resistance, and 20.2 nF of capacitance, which support current-loop tuning and filter selection. Operation is permitted between 0 °C and +40 °C ambient, and the insulation system is rated Class 155 F to tolerate internal hot-spot temperatures when the motor is mounted without a holding brake.

Mechanical features also support operation in ATEX-rated zones. A rotor inertia of 0.03620 kg·m² balances rapid indexing with manageable drive rigidity, and the electromagnetic design yields a torque constant of 1.87 Nm/A together with a back-EMF constant of 114.5 V/min⁻¹ for predictable servo tuning. The plain shaft includes a front centering hole, a DIN 332-compatible DS thread, and a shaft seal, while the housing carries IP65 protection against dust and water jets. Connections exit at the top through a terminal box that accepts 17 to 19.5 mm cable glands, which eases routing inside flameproof enclosures. The motor frame limits airborne noise to 61.1 dB(A), and its mass of 65.0 kg adds thermal mass that helps absorb cyclic loads.