MST130G-0035-NS-N0CN-D303 Bosch Rexroth Indramat
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MPN: R911307820
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The Bosch Rexroth Indramat MST130G-0035-NS-N0CN-D303 is a synchronous torque motor from the MST Synchronous Torque Motors series. It delivers a rated power of 1.20 kW, a rated torque of 31.5 Nm, and operates at a rated speed of 350 rpm. The motor has a maximum current of 18.0 A, features natural convection cooling, and provides IP00 protection.
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Product Description:
The MST130G-0035-NS-N0CN-D303 is a frameless, low-speed torque motor in the MST Synchronous Torque Motors series. Designed for direct-drive rotary axes in automation equipment, the stator and rotor can be integrated directly into a machine structure so gear reduction is unnecessary. This arrangement provides high positioning accuracy and eliminates backlash in indexing tables, printing cylinders, and similar assemblies where continuous rotation at controlled speed is required. Because the motor is frameless, the active parts can be built directly into the axis, which helps reduce drivetrain compliance and saves installation space.
The motor operates at a rated speed of 350 rpm while delivering a continuous torque of 31.5 Nm; this corresponds to a mechanical output of 1.20 kW. A phase current of 4.9 A is required to reach that operating point, and the electromagnetic conversion efficiency is characterized by a torque constant of 6.43 Nm/A. Internal copper loss is influenced by a winding resistance of 17.4 ohms, which affects heat generation under load. Heat is removed by natural convection, so no external fan or liquid circuit is involved. The stator weighs 10.6 kg and uses standard encapsulation, which supports passive cooling and straightforward mounting. Ten pole pairs produce the magnetic field density needed for high torque at low speed, while the axial cable outlet with equal outer diameters simplifies routing inside a housing with an IP00 protection rating.
During transient motion, the motor can supply up to 80 Nm, and that limit is reached when the drive briefly raises phase current to 18.0 A. When the shaft is locked, a standstill torque of 34 Nm resists external loads without a mechanical brake, allowing stable holding on vertical or oscillating axes. The 0.520 V/rpm voltage constant keeps back EMF modest at low speed, which helps the motor operate with a compact inverter. These characteristics make the motor suitable for direct-drive applications that need steady low-speed torque and short-term overload capability.
Frequently Asked Questions about MST130G-0035-NS-N0CN-D303:
Q: What is the maximum torque capacity of the MST130G-0035-NS-N0CN-D303?
A: The MST130G-0035-NS-N0CN-D303 provides a maximum torque output of 80 Nm for demanding applications.
Q: What type of cooling does the MST130G-0035-NS-N0CN-D303 utilize?
A: This motor operates with natural convection cooling, requiring no external forced cooling systems.
Q: What is the rated power output of the MST130G-0035-NS-N0CN-D303?
A: The MST130G-0035-NS-N0CN-D303 is rated for a continuous power output of 1.20 kW.
Q: What degree of protection does the MST130G-0035-NS-N0CN-D303 offer?
A: This model features a protection rating of IP00, offering no protection against dust or water ingress.
Q: What is the rated current requirement for the MST130G-0035-NS-N0CN-D303?
A: The rated current for this torque motor is 4.9 A during continuous operation.
