B&R 8MSA4X

Technical Specifications

• Rated Voltage: 200‑600 VAC
• Stall Torque: 5.0‑7.0 N·m (winding‑dependent)
• Rated Speed: Up to 3000‑6000 rpm
• Protection Class: IP54 / IP67 optional
• Flange Size: Size 4 (100 mm series)
• Encoder: EnDat 3 absolute encoder
• Cooling Method: Self‑cooled
• Weight: Approximately 5 kg (brake adds 0.9 kg)
• Functional Features
• Ultra‑high power density, compact frame size reduces machine installation space
• Low cogging torque optimizes shaft‑output positioning accuracy
• Integrated STO safety function compatible with B&R SafeMotion solution
• Modular configuration: holding brake, oil seal, different shaft‑end styles are optional
• High energy efficiency exceeding 95% under typical working cycles
• Standardized flange interface for seamless connection with standard mechanical components on the marketB& R Indus…
• Application Scenarios: Packaging machinery, textile equipment, machine tool auxiliary axes, robotic handling systems, printing machines, new‑energy production equipment, high‑speed positioning automation lines Performance Parameters: Fast dynamic response, short settling time for position loop; high‑bandwidth encoder guarantees repeat positioning accuracy; supports high‑cycle continuous operation under variable load conditions.
• Material Composition: Aluminum alloy motor housing, high‑grade silicon‑steel sheet stator core, high‑strength neodymium‑iron‑boron permanent‑magnet rotor, reinforced insulated winding, metal‑reinforced industrial connectors.
• Structural Characteristics: Flange‑mounted structure; integrated rear‑end encoder chamber; compact hybrid connector interface; internal optional friction‑type holding brake assembly; sealed housing structure for dust‑proof and water‑proof performance.
• Working Principle: Based on permanent‑magnet synchronous motor theory; servo drive outputs variable‑frequency three‑phase current to generate rotating magnetic field; interacts with rotor permanent magnet to produce torque; high‑resolution encoder feeds back rotor position and speed to realize closed‑loop precise speed and position control.
• Installation Requirements: Flange mounting with precision‑tolerance mounting surface; keep sufficient convection clearance around motor housing for heat dissipation; strictly follow torque specification for connector tightening; match encoder cable and power cable with drag‑chain‑rated cables for moving‑cable applications.