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KOLLMORGEN AKM44E-ANCN2-N

Product Name: Kollmorgen AKM44E-ANCN2-N — Servo Motor (AKM Series, Frame Size 44E)

Product Series: AKM — Advanced Kinetics Motor

Product Type: Brushless DC Servo Motor with Integrated Electronics

Detailed content

Key Specifications:

  • Model Code Breakdown:
    • AKM = Advanced Kinetics Motor
    • 44 = Frame size 44 (flange dimension ~110 mm)
    • E = Extended length variant (high torque density)
    • A = Winding variant A (specific torque/speed curve)
    • N = Natural convection cooling (no fan)
    • C = Connector type C (M23 military-style connector)
    • N = Feedback type N (EnDat 2.2 absolute encoder)
    • 2 = Shaft variant 2 (keyed shaft with flat)
    • N = Electrical brake: No brake
  • Continuous Torque: 1.45 Nm (rated at 3000 RPM base speed)
  • Peak Torque: 4.35 Nm (3× continuous, 10-second duration)
  • Rated Speed: 3000 RPM (base speed)
  • Max Speed: 6000 RPM (field weakening region)
  • Rated Power: Approximately 0.45 kW (continuous) / 1.35 kW (peak)
  • Encoder: EnDat 2.2, 2048 lines (11-bit single-turn) + 12-bit multi-turn absolute
  • Feedback Resolution: 2048 × 4096 = 8,388,608 counts per revolution
  • Insulation Class: Class F (155°C)
  • Protection Rating: IP65 (with connector cap), IP67 (with sealed cable gland)

Structural Features:

  • Frame Size: 44E (110 mm flange diameter)
  • Overall Length: Approximately 260 mm (including shaft)
  • Shaft Diameter: 19 mm
  • Shaft Type: Keyed shaft with DIN 6885-1 keyway, 5 mm key
  • Housing Material: Anodized aluminum alloy (high thermal conductivity)
  • Weight: Approximately 2.1 kg
  • Cooling: Natural convection (no fan, no external cooling required at rated load)

Electrical Parameters:

Parameter Value
Rated Voltage (DC Bus) 300–480 VDC
Continuous Current 2.8 A RMS
Peak Current 8.4 A
Phase Resistance 3.2 Ω (typical, 20°C)
Phase Inductance 5.8 mH (typical)
Back-EMF Constant (Ke) 6.5 V/krpm
Torque Constant (Kt) 0.55 Nm/A
Rotor Inertia 18 × 10⁻⁶ kg·m²
Mechanical Time Constant 4.2 ms
Electrical Time Constant 1.8 ms

Advantages:

  • Integrated absolute encoder eliminates homing sequence on power-up
  • EnDat 2.2 provides noise-immune, high-resolution position feedback
  • Compact form factor with high torque-to-inertia ratio
  • Field-proven reliability in 24/7 industrial operation
  • Fully compatible with AKD servo drives (plug-and-play tuning)

Applicable Industries: Pick-and-place machines, lab automation, medical devices, semiconductor wafer handling, small robotics joints

Installation Notes:

  • Align coupling within 0.05 mm radial and 0.05° angular misalignment tolerance
  • Use torque-controlled fasteners: shaft coupling bolts at 8 Nm
  • Do not apply axial load exceeding 150 N on the shaft
  • Ensure connector is sealed when operating in washdown environments

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