Kollmorgen 6SM57M‑3

• Standstill Torque: 8.0 Nm
• Rated Speed: 3000 rpm
• Rated Operating Current: 4.3 A
• Protection Class: IP65
• Cooling Method: Natural convection cooling
• Insulation Class: Class F
• Feedback Device: Resolver or optional encoder feedback
• Optional Accessory: 24 VDC electromagnetic holding‑brake
• Mounting Form: Flange‑mount
• Operating Ambient Temperature: −20 °C ~ +40 °C

Functional Features

• High‑torque‑density magnetic‑circuit‑design provides large‑continuous‑torque output within medium‑frame‑size housing
• Brushless‑synchronous‑structure, high‑operating‑efficiency, low‑heat‑generation under long‑time continuous‑operation
• Resolver feedback realizes stable‑position‑detection under high‑vibration‑industrial‑conditions
• Built‑in winding‑thermal‑monitoring‑contact for over‑temperature‑fault‑detection
• Optional 24 VDC holding‑brake implements power‑off‑position‑holding for vertical‑axis‑application
• Low‑cogging‑torque‑design ensures smooth‑motion‑performance under low‑speed‑working‑condition

Application Scenarios

• Medium‑load feed‑axes of CNC‑machine‑tools and machining‑centers
• Robotic‑joint‑driving, heavy‑duty‑packaging‑machinery servo‑axes
• Printing‑machinery, textile‑machinery main‑drive‑axes
• Material‑handling‑equipment with medium‑heavy‑load‑requirement

Performance Parameters

• Matched‑rotor‑inertia balances dynamic‑acceleration‑capacity and load‑driving‑ability
• Sufficient short‑time‑overload‑torque‑capacity for dynamic‑motion‑profile execution
• Natural‑convection‑cooling for S1 continuous‑duty‑cycle‑operation under rated‑ambient‑temperature

Material Composition

• Housing: High‑strength aluminum‑alloy housing
• Stator: Laminated‑silicon‑steel‑sheet‑core with high‑quality‑copper‑wire‑winding
• Rotor: Laminated‑iron‑core embedded‑with neodymium‑permanent‑magnet
• Output‑shaft: High‑strength‑precision‑alloy‑steel‑shaft

Structural Characteristics

• Standard‑size flange‑mount‑interface, key‑way‑output‑shaft
• Separate‑power‑connector and feedback‑signal‑connector on housing‑side‑surface
• Feedback‑sensor unit installed inside motor‑rear‑end‑housing
• Optional‑brake‑module assembled at motor‑rear‑end

Working Principle

• Servo‑amplifier outputs three‑phase‑sinusoidal‑current‑to‑stator‑windings, generates rotating‑magnetic‑field, interacts with rotor‑permanent‑magnet‑to‑produce driving‑torque for shaft‑rotation
• Resolver detects real‑time‑rotor‑angle‑position, transmits feedback‑signal‑to‑matched‑servo‑drive‑to‑complete‑closed‑loop‑speed‑and‑position‑control
• Thermal‑contact outputs winding‑temperature‑switch‑signal‑for‑drive‑side‑over‑temperature‑protection‑logic

Installation Requirements

• Adopt flange‑mount‑installation, guarantee mounting‑flange‑flat‑ness‑to‑avoid‑housing‑mechanical‑stress‑distortion
• Strictly‑control‑co‑axial‑tolerance‑of‑coupling‑between‑motor‑output‑shaft‑and‑mechanical‑load
• Reserve‑sufficient‑surrounding‑space‑for‑natural‑convection‑heat‑dissipation, avoid‑enclosing‑motor‑in‑sealed‑narrow‑cavity
• Use‑matched‑shielded‑servo‑cables;‑separate‑power‑cable‑and‑feedback‑cable‑routing‑path
• Reliably‑connect‑motor‑housing‑to‑equipment‑protective‑earth‑terminal