Product Short Description
Product Name: 8MS-4 Series Synchronous Servo Motor (frame size “A4” family)
Product Introduction: A high power-density, compact synchronous servo motor from B&R’s latest 8MS-4 generation, designed for versatile servo applications requiring high efficiency, high precision and dynamic response.
Technical Specifications:
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Nominal speed: 3000–6000 rpm
Description
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Stall torque (M0): 6.45–10.16 Nm (for the A4 frame)
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Flange dimensions: 100 × 100 mm
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Centering diameter: 95h7
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Shaft diameter: 19k6
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Encoder options: EnDat 3, 32-line multi-turn, incremental, etc.
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Connector: New compact connector (Ytec system, angular rotatable)
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Protection class: IP64 (self-cooled, structure type A)
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Optional: Oil seal, holding brake, various shaft ends
Functional Features:
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Energy efficiency exceeding 95% (depending on duty cycle)
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Optimized design minimizing cogging torque
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Ultra-high bandwidth encoder for exceptional controllability and outstanding precision
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Integrated latest safety functions by default
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Standardized flange sizes for seamless integration with market-available mechanical parts
Application Scenarios: CNC machine tools, packaging machinery, printing machines, textile machines, beverage & food machinery, industrial robots, and general automation.
Working Principle: A permanent-magnet synchronous motor. The stator’s rotating magnetic field interacts with the rotor’s permanent magnets to generate torque. The rotor position is continuously fed back via a high-resolution encoder to the servo drive, enabling precise closed-loop control of position, speed and torque.
Installation Requirements:
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Use standardized flange for mounting.
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Install the appropriate holding brake if required for vertical-axis applications.
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Ensure proper connection via the angular rotatable connector.
Usage Precautions:
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The motor must be driven by a compatible B&R ACOPOS servo drive.
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Avoid exceeding the specified ambient temperature and thermal limits.
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Ensure the brake (if equipped) is correctly powered and released.
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Keep the encoder connection clean and secure to avoid signal loss.
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