Product Description:

The MHD112D-027-PP0-LN is a servo motor manufactured by Bosch Rexroth Indramat as part of the MHD Synchronous Motors series. By combining permanent-magnet excitation with digital feedback, the unit supplies direct torque to machine shafts under drive controller supervision. In automated cells, it functions as a positioning or velocity axis, allowing repeatable motion profiles without mechanical gear stages. The motor is suited for applications that require controlled acceleration, steady speed regulation, and accurate response to changing load conditions during normal machine operation.

Its mechanical interface centers on a 130 mm pilot diameter that aligns the stator housing to mounting surfaces, while a square flange measuring 192 mm sets the bolt pattern for rigid frame attachment. At standstill, the motor can deliver 48.0 Nm of continuous torque, enabling direct drive of medium-inertia loads without overheating. Heat generated by copper losses is extracted through liquid cooling channels cast into the housing, so full torque is available even in sealed cabinets. This cooling method also helps keep thermal conditions stable during long duty cycles and frequent start-stop motion. The motor uses length code D, which indicates an extended active stack within the 112 frame size.

Position feedback is supplied by a digital servo encoder that provides absolute (>4096 revolutions) resolution, enabling the drive to recover shaft angle immediately after power-up. The power leads exit the stator housing to the left through a molded power connector, which can simplify cable routing in multi-axis cabinets. A keyed shaft transmits torque and works with the integrated shaft seal to help block lubricant ingress from attached gear sets. Because the motor is shipped without a holding brake, an external locking device is required for vertical axes when power is removed. Identification for drive parameter sets is stored under winding code 027, so the matching drive can be set with the correct motor data. This arrangement supports reliable closed-loop motion control in systems that depend on accurate shaft position and stable torque delivery.