MST160E-0050-FT-N0CN-D303 Bosch Rexroth Indramat
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MPN: R911343160
The Bosch Rexroth Indramat MST160E-0050-FT-N0CN-D303 is part of the MST Synchronous Torque Motors series and delivers a maximum torque of 270 Nm with a rated speed of 550 rpm. It features a rated power of 6.90 kW and a rated current of 19.5 Amps. The motor has a winding resistance of 3.24 Ohms and a winding inductance of 13.1 mH.
Internal Product Review
The MST160E-0050-FT-N0CN-D303 is a synchronous torque motor engineered for smooth low-speed drive performance, with 6.90 kW rated power at 550 rpm. Rated torque of 120 Nm and maximum torque of 270 Nm give the motor strong overload capacity and steady output in demanding motion applications. A 6.15 Nm/A torque constant highlights efficient current-to-torque conversion for precision torque control.
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Product Description:
The MST160E-0050-FT-N0CN-D303 is a frameless torque motor segment produced by Bosch Rexroth Indramat. It belongs to the MST Synchronous Torque Motors series. Designed for direct-drive rotary tables, printing cylinders, and similar low-speed workstations, the unit delivers high continuous torque without mechanical gear reduction, which simplifies drive trains in automated machinery. Its frameless format allows direct integration into machine assemblies where a conventional motor housing would take additional space.
Under nominal operating conditions, the motor supplies 120.0 Nm of torque at a shaft speed of 550 rpm. Together, these values represent its rated mechanical operating point and yield a rated output of 6.90 kW. Supplying that load requires a line current of 19.5 A, which affects inverter sizing and cable thermal limits. For short overload periods, the rotor can withstand up to 270 Nm, enabling fast indexing or breakaway of static loads without damage. Electrical design parameters include a leakage capacitance of 17.5 nF that must be considered in EMC filters, a winding inductance of 13.1 mH that influences current ripple, and a winding resistance of 3.24 Ω that affects copper losses. The stator terminals accept power conductors with a 2.5 mm² cross-section, matching the continuous current and permissible temperature rise.
At standstill, the motor provides a holding torque of 145 Nm while drawing 21.4 A, allowing precise positioning without mechanical brakes. During rapid acceleration, the solid-state driver may deliver up to 60.0 A, a ceiling that protects both semiconductor switches and magnet insulation. Thermal saturation develops quickly because the laminated stack reaches its rated temperature in 7.0 min, so forced cooling or duty-cycle control may be required in tight enclosures. Each ampere in the windings produces torque at a constant of 6.15 Nm/A, which simplifies closed-loop current regulation. A back-EMF gradient of 0.433 V per min⁻¹ supports the speed feedback model used by observers.
