Product Description:

The MST160C-0050-FT-N0CN-D303 stator comes from Bosch Rexroth Indramat and belongs to the MST Synchronous Torque Motors series. As part of a frameless direct-drive platform, it functions as the stationary winding assembly that generates high continuous torque for rotary tables, extruders, and other low-speed positioning axes in industrial automation. When combined with a matched rotor and drive, the unit eliminates gearboxes, reducing mechanical play while delivering smooth torque at moderate rotational speeds.

At its continuous operating point, the stator supplies 70 Nm of electromagnetic torque while turning at 500 rpm; together these values correspond to a mechanical output of 3.67 kW. The phase windings draw a nominal current of 13 A, so drive sizing must accommodate that load along with the winding resistance and thermal limits. Rotor inertia matching is aided by the stator’s rotational equivalent inertia of 0.0108 kg·m², which helps produce a predictable acceleration profile for servo loops. Physical dimensions include an 80 mm inner bore that accepts large-diameter shafts, a 145 mm axial stack length for increased copper volume, and a 3.5 ± 0.2 mm round cable that exits through pre-stripped stranded wires. The primary power conductors use AWG 14 and meet the minimum 1.0 mm² cross-section requirement to limit resistive losses during sustained duty.

The stator reserves headroom for dynamic events with a peak capability of 180 Nm, and the associated surge current is limited to 40 A, which sets the drive’s protective trip points during rapid indexing or load shocks. Thermal management must also consider the stator mass of 9.6 kg, and the housing’s 180 mm outside diameter provides substantial surface area for conduction to the machine frame. The unit is suited for compact rotary tables or drum casings where brief overloads can occur during short acceleration or indexing cycles.