Kollmorgen S446-M

Kollmorgen S446-M

  • Product Overview: The S446M is a compact, high-performance servo unit from Kollmorgen’s AKM series (Size 46), featuring an integrated electromagnetic holding brake for fail-safe stopping in precision positioning applications.
Request Quote
Category:

Description

Kollmorgen S446-M

  • Technical Specifications:
    • Series: AKM (Advanced Kollmorgen Motor), Size 46
    • Frame Size: 46 (46 mm stack length, 90 mm flange)
    • Rated Voltage: 400 VAC (three-phase AC servo class)
    • Continuous Torque: 1.3 Nm (varies slightly by winding)
    • Peak Torque: 4.1 Nm
    • Rotor Inertia: ~0.38 kg·cm² (low inertia for high acceleration)
    • Brake Type: Electromagnetic spring-applied holding brake (24 VDC, failsafe)
    • Feedback: Standard single-turn incremental encoder (1024 PPR); resolver or absolute options available depending on suffix
    • Protection Rating: IP65 (dust-tight and protected against water jets)
    • Mounting: IEC B5 flange with keyway shaft (standard shaft diameter: 14 mm)
  • Functional Features:
    • Integrated electromagnetic brake engages automatically when power is removed — critical for vertical-axis applications
    • Factory-integrated brake design ensures optimal alignment and consistent release timing
    • Low rotor inertia for high dynamic acceleration
    • Compatible with Kollmorgen S700 and AKD drive platforms
  • Application Scenarios:
    • Vertical Pick-and-Place Systems: Prevents payload drop during emergency stops in cartoning or palletizing machines
    • Medical Imaging Equipment: CT or MRI table positioning requiring mechanical lock-up during scanning
    • Precision Assembly Robots: Safe hold during tool changes in SCARA or 6-axis collaborative cells
    • Legacy Machine Retrofits: Direct replacement for worn units in systems running AKD/S700 drive platforms
  • Performance Parameters:
    • 400V class operation enables higher bus voltage, improving torque density and reducing current ripple
    • Low inertia design supports rapid acceleration/deceleration profiles
  • Material Composition:
    • Precision-machined aluminum housing
    • Electromagnetic brake assembly with spring-applied mechanism
    • High-grade bearing system
  • Structural Features:
    • Compact IEC B5 flange mounting
    • Keyway shaft output (14 mm diameter)
    • IP65 sealed enclosure for harsh environments
  • Working Principle:
    • The integrated servo motor converts electrical energy into precise rotational motion under closed-loop control. The spring-applied brake automatically engages when power is removed, providing a fail-safe holding function. When 24 VDC is applied, the brake releases to allow free rotation.
  • Installation Requirements:
    • Mount using IEC B5 flange with appropriate fasteners
    • Supply separate 24 VDC power for brake operation
    • Pair with compatible Kollmorgen drive (AKD, S300, S700) configured via WorkBench software
  • Usage Notes:
    • Confirm exact suffix (e.g., -PB vs. -PBA) for brake voltage and connector pinout compatibility
    • Brake power must be supplied separately from motor power
    • Kollmorgen has migrated to the AKM2G platform; the closest modern equivalent is the AKM23G-PB (requires new mounting adapters and drive firmware)
    • Verify winding code, feedback type, and brake specs against the motor nameplate beforeordering

Related products