B&R 8LSA55

Product Name: 8LS Series Self‑cooling Synchronous Servo MotorB& R Indus… Product Brief: Mid‑high‑torque self‑cooling permanent‑magnet synchronous servo motor of B&R 8LS motor series. It delivers high continuous‑torque output and excellent dynamic response for demanding industrial motion‑control applications, cooperating with ACOPOSmulti servo drivesB& R Indus…

Category:
Description

Technical Specifications

  • Cooling Method: Self‑cooling (Cooling Type A)
  • Pole‑pair Quantity: 4
  • Nominal Speed: 3000 rpm
  • Nominal Torque: 11.6 Nm
  • Stall Torque: 12.5 Nm
  • Maximum Torque: 41.4 Nm
  • Nominal Power: 3644 W
  • Maximum Permissible Speed: 9000 rpm
  • Feedback Options: Resolver, single‑turn / multi‑turn EnDat inductive encoder
  • Shaft Options: Smooth shaft, keyed shaft; optional holding brake
  • Degree of Protection: IP65 for shaft‑end and connector
  • Certifications: CE, UKCA, UL cURus E360421 servo‑motor‑component certificationB& R Indus…

Functional Features

  • Low‑cogging‑torque magnetic‑circuit design for ultra‑smooth low‑speed operation
  • High‑overload capability for dynamic acceleration‑deceleration cycles
  • On‑board parameter chip supporting automatic drive‑side motor‑parameter identification
  • Rotatable angled SpeedTec connector for flexible cable‑installation layout
  • Optional reinforced bearings, shaft oil‑seal, spring‑type holding‑brake
  • High power‑density aluminum‑housing construction for reduced overall machine footprint

Application Scenarios Heavy‑duty packaging machines, metal‑processing equipment, gantry‑robot axes, large‑format printing machinery, injection‑molding‑machine auxiliary servo axes, logistics automated‑handling systems.

Material Composition

  • Housing: Die‑cast aluminum alloy with cooling fins
  • Rotor: Rare‑earth permanent‑magnet rotor assembly
  • Stator: Silicon‑steel‑sheet laminated stator with copper windings
  • Output shaft: High‑strength alloy‑steel shaft
  • Connector assembly: Shielded industrial SpeedTec rotary connector

Structural Characteristics Flange‑mounted self‑cooling servo‑motor structure. External cooling fins on aluminum housing. Non‑drive‑end integrates feedback‑encoder unit; optional holding‑brake module can be installed. Rotatable angled connector supports cable‑direction adjustment during installation.

Working Principle Three‑phase sinusoidal current output from servo‑drive creates rotating magnetic‑field inside stator. Magnetic‑field interacts with rotor permanent‑magnets to generate driving torque. Position‑speed feedback signal is sent back to drive unit to realize high‑precision closed‑loop motion‑control.

Installation Requirements

  • Install via standard flange‑mounting holes; ensure mounting‑face flatness
  • Reserve natural‑convection cooling clearance around motor housing
  • Use B&R‑specified shielded power and feedback cables
  • Comply with motor‑shaft allowable radial‑axial load limits
  • Reliable protective‑earth connection required
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