Product Description:

The MKE118B-058-AG0-KE4 is a synchronous servo motor produced by Bosch Rexroth Indramat and supplied within the MKE Synchronous Motors series. Classified as a servo motor for potentially explosive areas, it is intended for closed-loop drive tasks on mixers, pumps, and material-handling axes that operate in ATEX-regulated zones. The motor couples to an external drive controller to translate electrical commands into precise mechanical power while maintaining safe surface temperatures in environments where flammable gases may be present.

During continuous standstill with a 60 K winding temperature rise, it can draw 28.4 A and generate a holding torque of 28.0 Nm, so the shaft can support static loads without overheating. For rapid acceleration or large load steps, the drive may momentarily supply up to 127.6 A, enabling a peak torque of 102.0 Nm that overcomes high breakaway friction. Once motion is underway, the rotor can reach 4500 rpm, giving adequate speed headroom for centrifugal equipment. Dynamic response is influenced by a rotor moment of inertia of 0.01940 kg·m², which balances quick ramp times with stable velocity control. All terminations are made in a sealed terminal box located on the top of the housing, and cabling between 13 mm and 16 mm outer diameter can be clamped through the gland to preserve the motor’s IP protection.

The motor has a torque constant of 1.15 Nm/A, so each ampere of drive current produces predictable rotational force, while a back-EMF constant of 70.0 V min⁻¹ supports overspeed detection in the controller. The motor mass is 45.0 kg, so the mounting structure must support that load during operation. Additional characteristics include F-class insulation, single-turn Hiperface optical feedback with 128 increments, a plain shaft with a DIN 332 DS thread, and operation between 0 °C and 40 °C without derating.