Kolmorgen AKM44J-ANSNS-04 Servo Motor Detailed Product Description
May 15, 2026

Kolmorgen AKM44J-ANSNS-04 Servo Motor Detailed Product Description

Full model analysis Main model: AKM44J AKM: Kolmorgen high-performance permanent magnet synchronous servo motor series 4: 4-inch base → 90×90mm IEC standard square flange 4: Stator stack length 4 → Ultra-long body, high torque density J: 400V winding → Compatible with three-phase 400V AC, 560V DC bus Configuration code: ANSNS A: Installation form → IEC standard square flange (90×90mm, N grade accuracy) N: Output shaft → φ22mm smooth shaft (no key slot), shaft end with M12 fixing screw holes S: Feedback type → Sin/Cos sine/cosine encoder (high-resolution analog quantity) N: Electromagnetic brake → No built-in brake S: Connector → M23 straight head connector (power / feedback integrated) Suffix -04 Special shaft extension configuration (non-standard length) Protection level: IP65 (body) / IP65 (shaft end) F-class insulation, specially customized bearings / seals Compatible with high dynamic, high precision positioning scenarios

Description

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Kolmorgen AKM44J-ANSNS-04 Servo Motor Detailed Product Description

I. Complete Model Analysis

Main Model: AKM44J

AKM: Kolmorgen High-performance Permanent Magnet Synchronous Servo Motor Series

4: 4-slot base → 90×90mm IEC standard square flange

4: Stator overlap length 4 → Ultra-long body, high torque density

J: 400V winding → Compatible with 3-phase 400V AC, DC bus 560V DC

Configuration Code: ANSNS

A: Installation form → IEC standard square flange (90×90mm, precision N grade)

N: Output shaft → φ22mm plain shaft (no key slot), shaft end with M12 fixing screw holes

S: Feedback type → Sin/Cos sine/cosine encoder (high-resolution analog quantity)

N: Electromagnetic brake → No built-in brake

S: Connector → M23 straight head connector (power / feedback integrated)

Suffix -04

Special shaft extension configuration (non-standard length)

Protection grade: IP65 (body) / IP65 (shaft end)

F-class insulation, special custom bearings / seals

Suitable for high dynamic, high precision positioning scenarios

II. Core Electrical Parameters

Continuous start torque: 6.00 N·m

Rated torque: 2.75 N·m (@ 6000 rpm)

Peak torque: 20.4 N·m

Rated power: 1.73 kW (@ 6000 rpm)

Rated speed: 6000 rpm

Maximum speed: 7000 rpm (optional)

Compatible voltage: 3-phase 400V AC

DC bus: 560V DC

Rated current: 2.7 A RMS

Pole pairs: 10 poles (5 pairs)

Rotor inertia: 0.0010 kg·m²

Insulation class: F class 155℃

Overall weight: 5.3 kg

III. Feedback System (Sin/Cos Sine/Coarse Encoder)

Type: High-resolution analog quantity Sin/Cos encoder

Core features:

Analog quantity sine / cosine signal output, ultra-high precision, low noise

Support fine number control, positioning accuracy up to ±5 arc seconds

High-speed response, strong dynamic stability, suitable for high-speed high-precision scenarios

Compatible with Kolmorgen AKD, AKD2G series drivers

Strong anti-interference ability, industrial-grade reliability

IV. Mechanical Structure Specifications

Installation flange: 90×90mm IEC standard square flange (precision N grade)

Shaft diameter / shaft type: φ22mm plain shaft (no key slot), compatible with high-precision elastic coupling

Shaft seal: IP65 grade shaft seal ring

Brake: No built-in brake, low inertia, high dynamic response

Connector: M23 straight head integrated connector (power + feedback)

Protection grade: IP65 (body + shaft end)

Shell: RAL 9005 matte black enamel

Bearings: High-precision industrial-grade lifetime lubrication bearings

V. Environmental and Certification

Operating temperature: -20℃ ~ +40℃

Storage temperature: -30℃ ~ +85℃

Relative humidity: 5%~95% RH, no condensation

Anti-vibration / shock: Industrial-grade high anti-vibration design

Compliance certifications: CE, UL, cULus, RoHS

VI. Core Product Features

400V J-class medium-high voltage winding

Compatible with industrial 400V power grid, high efficiency, low heat generation, excellent dynamic performance.

90mm IEC standard flange

Universal installation size, easy replacement, strong compatibility.

Super long overlap torque density

4-slot stator, large torque output, good inertia matching, suitable for heavy-load high-precision positioning.

φ22mm plain shaft High concentricity, stress-free transmission, zero backlash, compatible with high-precision coupling direct connection.

Sine and cosine encoder feedback

Ultra-high precision, high-speed response, low harmonics, meeting micron-level positioning requirements.

M23 straight head integrated connector

Simple wiring, strong anti-interference, stable installation, suitable for compact cabinet layout.

No brake design

Suitable for horizontal motion axes, high-frequency start-stop, high-speed high-precision conditions, small inertia, fast acceleration.

Full-axis IP65 protection

Dust-proof, splash-proof, oil-resistant, suitable for humid, dusty industrial environments.

VII. Driver Compatibility

Kolmosung 400V/560V series:

AKD-P02407, AKD-P03606

AKD2G models of the same voltage level

Supporting protocols: Sin/Cos, EtherCAT, PROFINET, CANopen

VIII. Typical Applications

Precise positioning: Semiconductor equipment, precision machine tools, electronic manufacturing equipment

High-speed synchronization: Packaging machinery, printing machinery, textile machinery

Dynamic response: Robot joints, automated production lines, high-speed handling mechanisms

High-precision closed-loop: Laser processing, inspection equipment, visual positioning system

Compatibility: 90mm flange, 400V high voltage, ultra-long stacked torque, φ22mm optical shaft, sine and cosine encoder, IP65 protection scenarios.

IX. One-sentence Summary of Model

AKM44J-ANSNS-04:

90mm IEC square flange, No. 4 mounting base ultra-long stacking length, 400V J-class winding, 6000rpm rated speed, φ22mm optical shaft without keyway, sine and cosine high-resolution encoder, no brake, M23 straight head integrated connector, full-axis IP65 protection servo motor;

Positioning: 400V high voltage, high-speed high-precision, heavy-load dynamic positioning, industrial-grade high-precision dedicated model.


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