Product Description:

The MSS182A-0100-FA-N0CN-NNNN is a water-cooled synchronous servo motor produced by Bosch Rexroth Indramat for the MSS Synchronous IndraDyn H Motors series. It uses an external liquid circuit to extract heat, allowing it to deliver constant torque at low operating temperatures. In industrial automation, the unit couples directly to machine shafts, so it supplies precise rotational motion without mechanical gear reduction, making it suitable for packaging axes, material-handling gantries, and other high-duty-cycle drives.

At its rated operating point, the motor turns at 1000 rpm and produces a continuous water-cooled torque of 12 Nm, which corresponds to a mechanical output of 1.25 kW. When fast acceleration is required, it can reach a peak of 30 Nm while drawing up to 11 A from the drive controller. Four embedded pole pairs create the synchronous magnetic field, and the IP00 construction places all connections inside the machine enclosure where an external fan or coolant loop already exists. Standstill current with water cooling is 3.7 A, and total power loss into the coolant is limited to 0.27 kW, so most electrical energy is converted into usable shaft power.

Magnetic and thermal parameters affect how quickly the motor reaches its operating values. The torque constant is 3.02 Nm/A, so each ampere commanded by the inverter yields predictable shaft torque. A back-EMF, or voltage constant, of 297 V/krpm matches the motor to high-voltage drive amplifiers, reducing current demand during normal rotation. Dynamic behavior depends on the internal inductances; the direct-axis value is 56.34 mH, while the quadrature axis rises to 127.9 mH, giving the current regulator clear decoupling between axes. Copper losses are set by a winding resistance of 15.47 Ω measured at 20 °C. Heat absorbed by the jacketed water exits the stator within a thermal time constant of 7.9 min, allowing rapid recovery after overload events and maintaining insulation integrity during cyclic production.