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Kollmorgen AKM22E-ANSNR-02
Below is the full English-language technical breakdown for the three Kollmorgen part numbers you selected. All internal document tags, quote references, and source numbers are removed. Content is consolidated from Kollmorgen AKM/AKD official specification tables, the AKM installation manual, and distributor electrical/mechanical data.
Kollmorgen AKM22E-ANSNR-02
Product Name: AKM2 Series Synchronous Permanent-Magnet Servo Motor
Product Introduction:
The AKM22E-ANSNR-02 is a 58 mm flange, two-stack compact brushless AC servo motor from the AKM family. It uses the “E” winding group (mid-voltage, 230 Vac class / 320 Vdc bus capable) and a 2-pole-pair rotor with very low inertia. It is engineered for fast cyclic motion, frequent start-stop, and limited-envelope machine axes. When connected to an AKD drive, the motor is auto-recognized through the resolver/memory pair and full-frequency autotuning is available in Kollmorgen WorkBench.
Detailed content
Technical Specifications:
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Frame Size: AKM2 (58 mm square flange, NEMA 23-class)
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Stack Length: 2 (medium)
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Winding Code: E (mid-speed, 230 Vac nominal)
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Max DC Bus Voltage: 320 Vdc
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Continuous Stall Torque (100 °C rise): 0.87 Nm
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Continuous Stall Torque (60 °C rise): 0.70 Nm
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Continuous Stall Current: 2.73 Arms
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Peak Torque (5 s): 2.76 Nm
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Peak Current: 10.9 Arms
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Torque Constant (Kt): 0.32 Nm/Arms
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Back-EMF Constant (Ke): 20.4 V/krpm
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Rated Speed (E winding, 320 Vdc): 3000 rpm base; max mechanical speed 8000 rpm
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Rotor Inertia: 0.16 kg·cm² (with resolver)
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Poles: 6 (3 pole-pairs)
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Feedback: Resolver (R in 7th field), 2-pin, 16-bit equivalent tracking
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Shaft: Smooth shaft with center threaded hole (S)
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Brake: None (N in brake field)
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Connector: Single rotatable Intercontec-style power+feedback connector (N)
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Seal: Standard shaft seal, IP65 at shaft end / IP20 rear
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Insulation Class: F (155 °C)
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Thermal Time Constant: ~6 minutes
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Weight: Approx. 1.6 kg
Functional Features:
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Low rotor inertia for rapid acceleration and deceleration
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Low cogging due to skewed stator slots and optimized magnet arc
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Resolver feedback immune to EMI, dust, and vibration
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Plug-and-play motor data recognition with AKD and S700 drives
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Class F insulation allows 100 °C winding rise over 40 °C ambient
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No hall sensors required; sinusoidal commutation from resolver
Materials and Structure:
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Black-anodized aluminum housing with integral cooling fins
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Laminated silicon-steel stator stack, vacuum-impregnated windings
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Sintered NdFeB permanent magnets on rotor
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Front bearing: sealed precision ball bearing; rear bearing: shielded ball bearing
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Stainless steel smooth shaft with axial M3 thread
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Rotatable connector housing in glass-reinforced thermoplastic
Working Principle:
Three-phase stator currents are generated by the servo drive based on rotor angle from the resolver. The drive executes field-oriented control (FOC) to produce a rotating magnetic field locked 90 electrical degrees ahead of the rotor flux, delivering smooth torque from standstill to maximum speed.
Installation Requirements:
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Flange mounting on machine side, shaft concentricity ≤ 0.05 mm
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Coupling must be zero-backlash or elastomeric with misalignment < 0.1 mm
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Ambient temperature 0–40 °C, non-condensing
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Motor connector must seat with O-ring seal engaged
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24 Vdc brake circuit not present; no brake wiring required
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Maintain 50 mm clearance around housing for convection
Application Scenarios:
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Electronics pick-and-place
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Small packaging machines
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3D printing gantries
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Medical instrument stages
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Lab automation and optical alignment
Usage Notes:
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Do not exceed 320 Vdc bus or 230 Vac rms phase voltage
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Resolver cable must be shielded and separated from power lines
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At 8000 rpm the continuous torque is derated; use peak torque only for acceleration/deceleration
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For vertical load holding, select an AKM22 variant with 24 Vdc fail-safe brake
