8MSA4M.R0-32

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The 8MSA4M.R0-32 features a Curvic Coupling type, a module of 4, 32 teeth, and a robust alloy steel construction with a hardness of 58-62 HRC. Part of the 8MS Three Phase Synchronous Motors series produced by B & R Automation, it is designed for compatibility with robotics and indexing equipment and offers reduced backlash.

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Product Description:

The 8MSA4M.R0-32 is a compact synchronous motor built for precise motion control. It delivers consistent torque output across a wide speed range. The motor supports high dynamic performance and fast acceleration. It integrates seamlessly into advanced industrial applications.

This 8MSA4M.R0-32 synchronous motor offers a rated torque of 4.6 Nm and a stall torque of 5.3 Nm. The rated speed of the motor is 3000 RPM with a maximum operational speed of 12000 RPM. The motor supports a peak current of 25.1 A that ensures strong overload handling. It operates with an electrical time constant of 5.71 ms and features a stator inductance of 24 mH. It suits rapid start stop operations with a maximum rotational acceleration of 80000 rad/s². The moment of inertia without brake is 2.65 kg·cm². Its lightweight construction at 5.6 kg without brake allows for easier integration and flexible mounting. The motor is engineered to minimize mechanical stress during high speed operation. The high torque consistency ensures smooth performance under varying loads. The motor also features low cogging that enhances precision in low speed tasks. The synchronous design delivers accurate positioning and reliable feedback compatibility. It meets high efficiency standards with stable thermal behavior during continuous duty cycles. It can sustain high frequency start stop cycles without overheating.

This 8MSA4M.R0-32 synchronous motor has integrated 8 Nm brake to make it hold securely during vertical or safety critical applications. The power rating of the brake is 18 W and it operates in 24 V enabling it to perform consistently without a need to put high power into it. The low response times of the brake to activate and release induce improved suitability in dynamic positioning systems.

Backlash
Reduced backlash (R0)
Compatible Applications
Robotics, indexing equipment
Face Width
Varies by mounting
Hardness
58-62 HRC
Inner Diameter
Central bore as per customer spec
Material
Alloy steel
Module
4
Mounting
Bolt-on
Number Of Teeth
32
Outer Diameter
Approximately 136 mm
Surface Finish
Ground
Temperature Range
-20°C to 120°C
Type
Curvic Coupling

Frequently Asked Questions about 8MSA4M.R0-32:

Q: Can the 8MSA4M.R0-32 motor maintain torque across a wide speed range during high-speed operation?

A: Yes, the 8MSA4M.R0-32 delivers consistent torque from low to high speeds. Its high torque consistency supports smooth and stable performance even under fluctuating load conditions.

Q: How does the 8MSA4M.R0-32 handle overloads and rapid acceleration cycles?

A: The motor withstands strong overloads with a peak current of 25.1 A. It achieves fast dynamics through a high rotational acceleration of 80000 rad/s².

Q: Is the integrated brake in the 8MSA4M.R0-32 motor suitable for vertical-axis or safety-required applications?

A: Yes, it includes an 8 Nm brake designed for secure holding in vertical setups. The 18 W brake runs on 24 V and ensures low-delay actuation and release.

Q: Will the 8MSA4M.R0-32 support precise low-speed applications and positioning accuracy?

A: Its low cogging performance enhances precision during slow-speed tasks. The synchronous design enables accurate positioning and stable feedback integration.

Q: Can the 8MSA4M.R0-32 motor sustain frequent start-stop cycles without thermal issues?

A: It’s built for high-frequency operation with strong thermal stability. The motor remains efficient and cool even under continuous duty and repetitive motion cycles.


Internal Product Review

  • ‘‘The 8MSA4M.R0-32 synchronous motor is designed for high-performance industrial applications. It offers 4.6 Nm rated torque, supports 12000 RPM max speed, and features an 8 Nm integrated brake. The model ensures smooth, precise, and efficient motion control with its low cogging and high dynamic response.’’

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