B&R 8MSA3L

Technical Specifications

• Cooling Method: Self‑cooling
• Stall‑torque Range: Approximately 1.15 Nm (variant‑dependent)
• Nominal Speed Range: Up to 6000 rpm
• Feedback Device Options: Resolver, EnDat encoder
• Degree of Protection: IP65 (shaft‑end and connector)
• Shaft Options: Smooth shaft, keyed shaft; optional holding brake
• Certifications: CE, UL, UKCA

Functional Features

• Ultra‑low cogging‑torque magnetic‑circuit design for high‑position‑accuracy performance
• High‑dynamic acceleration capability for fast‑cycle‑time production equipment
• Supports openSAFETY network‑based functional‑safety motion‑control
• Embedded motor‑data chip for automatic drive‑recognition
• Compact‑size high‑power‑density mechanical‑design
• Multiple encoder and mechanical‑option combinations for flexible machine‑design

Application Scenarios Packaging machinery, textile‑automation equipment, small‑sized robotic manipulators, printing‑machinery servo‑axes, high‑speed automated‑assembly stations.

Material Composition

• Housing: Aluminum‑alloy die‑cast housing
• Rotor: Rare‑earth permanent‑magnet rotor
• Stator: Laminated silicon‑steel‑sheet stator with copper windings
• Output shaft: Alloy‑steel high‑strength shaft
• Connector: Metal‑shielded industrial servo‑connector

Structural Characteristics Compact square‑flange mounting‑structure. Self‑cooling fin‑type housing. Rear‑end accommodates feedback‑encoder unit; optional integrated holding‑brake. Rotatable angled connector for flexible cable‑routing.

Working Principle Permanent‑magnet synchronous motor operation. Servo‑drive outputs three‑phase sinusoidal current to stator windings to produce rotating magnetic‑field, driving permanent‑magnet rotor. Feedback sensor feeds real‑time position‑speed data back to drive for closed‑loop motion‑control.

Installation Requirements

• Flange‑mount installation, ensure mounting‑surface flatness
• Reserve natural‑air‑circulation clearance for heat dissipation
• Use matched shielded power‑cable and feedback‑cable
• Observe shaft radial‑axial load limits from datasheet
• Reliable protective‑earth connection

Usage Notes

• Avoid mechanical‑shock damage to shaft and encoder‑end during transportation‑installation
• Do not operate beyond rated peak‑torque and maximum‑speed limits
• For brake‑equipped variants, strictly follow brake‑voltage specifications
• Implement proper EMC grounding for motor‑cable shielding