MST130C-0050-FT-N0CN-D303 Bosch Rexroth Indramat
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MPN: R911332860
The Bosch Rexroth Indramat MST130C-0050-FT-N0CN-D303 is a synchronous torque motor from the MST Synchronous Torque Motors series. It delivers a maximum torque of 50 Nm, has a rated torque of 25 Nm, and operates at a rated speed of 500 rpm. The stator mass is 5.1 kg, and rated power output is 1.31 kW.
Internal Product Review
The MST130C-0050-FT-N0CN-D303 is a synchronous torque motor rated for 25.0 Nm at 500 rpm. Current scaling is well matched, with 6.1 A rated current and 12.5 A maximum current for stable continuous operation and useful peak capacity. The 50 Nm maximum torque makes the unit a strong choice for precise direct-drive applications.
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Product Description:
The MST130C-0050-FT-N0CN-D303 is a frameless synchronous torque motor stator produced by Bosch Rexroth Indramat for the MST Synchronous Torque Motors series. Units in this series are intended to be built directly into rotary tables, indexing heads, or low-speed drive shafts so that mechanical gearboxes can be eliminated and position accuracy improved. By delivering high continuous torque at comparatively low rotational speed, the stator forms the electromagnetic core of a direct-drive system used in industrial automation and machining centers.
Under continuous operation, the stator reaches its rated operating point at 500 rpm; at this speed, it produces a stable output of 25.0 Nm, corresponding to 1.31 kW of mechanical power. The electrical demand for that condition is a rated phase current of 6.1 A. A torque constant of 4.30 Nm/A links the developed torque linearly to the applied current, while the phase winding inductance of 40 mH shapes current rise time and aids controller stability. Copper losses are governed by a winding resistance of 10.3 Ω, and those losses are carried away by a liquid circuit that must deliver 2.0 L/min through the integrated cooling jacket. The motor connects to the drive via AWG 16 power leads, a size selected to keep voltage drop low at rated current.
During acceleration or process upsets, the stator can generate up to 50 Nm of peak torque when the inverter supplies a short-term current of 12.5 A. Thermal energy created under such overloads is limited by a power dissipation capacity of 1.40 kW and removed by coolant admitted at a maximum inlet pressure of 6 bar. Because its thermal time constant is only 2.5 min, any temperature rise appears quickly, allowing tight control of duty cycles. The electromagnetic assembly weighs 5.1 kg, a mass light enough for compact rotary axes yet heavy enough to damp vibration.
