Product Description:

The MST360E-0008-FT-N0CN-NNNN torque motor stator is manufactured by Bosch Rexroth Indramat and belongs to the MST Synchronous Torque Motors series. Intended as a direct-drive element, it converts electrical energy into high torque at very low speed for indexing tables, winding stations, and plastic processing machines. Its frameless construction lets the rotor mount directly on the load, which removes reducers and helps improve positional accuracy in closed-loop automation tasks. This layout also suits compact rotary assemblies where a conventional housed motor would add extra length.

At its continuous operating point, the stator delivers 875 Nm of torque while turning at 80 rpm, favoring force over speed for heavy rotary duties. That output requires 7.30 kW of mechanical power and a phase current of 21.0 A, which set the drive amplifier and conductor size. Liquid cooling removes heat, and the circuit must supply 6.0 L/min through the internal channels to keep winding temperature under control. A 260 mm inside diameter leaves clearance for feed-through shafts, and cabling exits on the stator side through a larger connector for 2.5 mm² leads. Because the unit is supplied without an encoder, an external feedback device must be fitted, and the windings are embedded in resin for thermal encapsulation.

The coolant channel holds 0.69 L, and inlet pressure must stay below 6.0 bar to protect the seals. The stator has an outer diameter of 385 mm, so surrounding machine structures must provide enough radial space for mounting and coolant routing. With a mass of 40.3 kg, the assembly needs stable handling during installation to avoid stress on the lamination stack. The liquid-cooled design supports applications that need sustained torque without adding gear stages between the motor and the driven load.