Product Description:

The MHD115C-059-PG1-AA is a servo motor manufactured by Bosch Rexroth Indramat for the MHD Synchronous Motors series. As a permanent-magnet motor, it supplies regulated rotary torque to machine tools, packaging stations, and material-handling axes where closed-loop positioning is required. Digital servo feedback inside the housing reports absolute rotor position to the drive controller, allowing the motor to integrate into multi-axis automation with minimal external sensors. Because the feedback system is built into the motor, the drive can monitor rotor angle directly without a separate external transducer on the axis.

The motor can produce a continuous standstill torque of 70.0 Nm, giving it the ability to hold large inertial loads without additional gearing. Its cast-aluminum enclosure carries a protection rating of IP65, so dust ingress and water jets do not affect operation when the unit is mounted outside control cabinets. A flange diameter of 192 mm matches standard machine interfaces and helps position the motor securely on the mounting face. Heat is removed by natural convection, so no blower or liquid cooling circuit is required. This cooling method keeps the housing layout simple and avoids the need for auxiliary airflow hardware around the motor body. Class F winding insulation withstands elevated winding temperatures and supports stable operation during changing load conditions.

The permitted operating ambient range is 0 to 40 °C, and an optical encoder system keeps composite positioning error within ± 0.5 angular minutes. Absolute multi-turn feedback with a range of more than 4096 revolutions eliminates the need for a homing routine after power-up. A centering diameter of 180 mm aligns the shaft precisely, while the plain shaft and a factory-installed shaft seal help protect the bearing area from coolant splash. The motor also includes a 70 Nm holding brake that engages on power loss to secure vertical loads. Electrical power is routed to side A through an output connector, which supports orderly cable routing in compact machine frames. Installation is allowed up to 1000 m above mean sea level, and storage temperatures range from -20 to +80 °C. Winding code 059, motor length C, and motor size 115 identify the electromagnetic and mechanical format used by this motor.