Product Description:

The MST160C-0050-FT-N0CN-NNNN is a frameless stator from the MST Synchronous Torque Motors series produced by Bosch Rexroth Indramat. As a liquid-cooled direct-drive component, it is intended for rotary tables, printing cylinders, and similar applications where high continuous torque must be generated at low shaft speeds without gearboxes. Its cable-conducted axial terminals allow the stator to be embedded inside a machine housing, while the integrated cooling jacket channels coolant around the windings to keep thermal rise under control during sustained duty. The frameless format also allows the surrounding machine structure to provide the final bearing and housing arrangement.

At nominal duty, the stator delivers a continuous torque of 70 Nm at a synchronous speed of 500 rpm. To reach this operating point, the windings draw a rated current of 13 A, and each ampere contributes predictable drive force through a torque constant of 5.5 Nm/A. Copper loss during operation is influenced by the winding resistance of 3.7 ohms, which affects heat generation when current flows. This operating point supports steady low-speed torque production in direct-drive applications without relying on a gearbox.

Additional performance margins support dynamic moves beyond the continuous point. The motor can supply up to 180 Nm for short periods, and mechanical components may accelerate safely until rotor frequency corresponds to 1000 rpm. Transient current demand is supported by a maximum current of 40 A, while electrical dynamics are influenced by an inductance of 15.1 mH, which affects current rise time and drive tuning. The stator mass of 9.6 kg adds thermal inertia and supports mounting in vertical frames. A liquid circuit supplying 3 l/min at 3 bar passes through the cooling jacket, and fifteen pole pairs set the electrical commutation frequency relative to the mechanical shaft speed. This helps the stator maintain smooth torque production under vector control during sustained cycling.