Kolmorgen AKM42G-EKCNR-01 Servo Motor Detailed Product Description
May 15, 2026

Kolmorgen AKM42G-EKCNR-01 Servo Motor Detailed Product Description

Full model analysis Main model: AKM42G AKM: Kolmorgen permanent magnet synchronous servo motor series 4: 4-inch mounting base → 84×84mm NEMA square flange 2: Stator overlap length 2 → Medium body, torque and inertia balanced G: 600V ultra-high voltage winding, compatible with three-phase 480-600VAC, 800V DC bus Configuration code: EKCNR E: Installation → 84×84mm NEMA square flange K: Shaft type → φ14mm standard shaft with key slot C: Feedback → High-reliability Resolver rotary transformer N: Brake → No built-in electromagnetic brake R: Outlet → Double M23 rotatable elbow connector (power / feedback separation) Suffix: -01 Special customized version: Extended shaft extension, reinforced shaft seal Protection class: IP67, F-grade high-temperature insulation, reinforced anti-vibration bearing configuration

Description

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Kolmorgen AKM42G-EKCNR-01 Servo Motor Detailed Product Description

I. Complete Model Analysis

Main Model: AKM42G

AKM: Kolmorgen Permanent Magnet Synchronous Servo Motor Series

4: 4-slot base → 84×84mm NEMA square flange

2: Stator overlap length 2 → Medium body, balanced torque and inertia

G: 600V Ultra-High Voltage Winding, compatible with three-phase 480–600VAC, DC bus 800V DC

Configuration Code: EKCNR

E: Installation → 84×84mm NEMA square flange

K: Shaft Type → φ14mm with key slot standard shaft

C: Feedback → High-reliability Resolver Tachogenerator

N: Brake → No built-in electromagnetic brake

R: Outlet → Double M23 rotatable angle connector (power / feedback separation)

Suffix -01

Special Customized Version: Extended shaft extension, strengthened shaft seal

Protection Grade: IP67, F-grade high-temperature insulation, reinforced anti-vibration bearing configuration

II. Core Electrical Parameters

Continuous Stall Torque: 3.55 N·m

Rated Torque: 2.38 N·m

Peak Torque: 11.6 N·m

Rated Power: 1.38 kW

Rated Speed: 6000 rpm

Maximum Speed: 6000 rpm

Compatible Voltage: Three-phase 480–600V AC

DC Bus: 800V DC

Rated Current: 4.8 A RMS

Insulation Grade: F-grade 155℃

Rotor Inertia: Medium-low inertia, high dynamic response

Overall Weight: Approximately 3.5 kg

III. Feedback System (Resolver Tachogenerator)

Type: Industrial-grade Hollow Shaft Tachogenerator

Core Characteristics:

No optical sensitive components, high-temperature resistant, anti-strong vibration, resistant to oil and dust

Minimal structure for maintenance-free, extremely long lifespan

Suitable for heavy industry, high-temperature, high-impact harsh conditions

Power-off no absolute position memory, power-on needs to return to zero

IV. Mechanical Structure Specifications

Installation Flange: 84×84mm NEMA square flange

Shaft Diameter: φ14mm with standard key slot, extended shaft extension

Shaft End: With M8 fixed installation screw holes + strengthened shaft seal

Brake: No built-in brake, lower rotor inertia, faster acceleration

Connector: Double M23 rotatable angle connector, 360° free wiring

Protection Grade: IP67 for dust and water protection of the entire machine

Bearings: Lifelong lubrication maintenance-free reinforced industrial bearings

V. Environment and Certification

Operating Temperature: -20℃ ~ +50℃ (wide temperature without capacity reduction)

Storage Temperature: -30℃ ~ +85℃

Humidity: 5%~95% RH without condensation

Anti-vibration / Impact: Industrial-grade high-anti-vibration reinforced design

Certification: CE, UL, cULus, RoHS

VI. Core Product Features

600V Ultra-High Voltage G Winding

Compatible with 480–600V industrial high-voltage grid, small current, low loss over long distance wiring, suitable for high-power high-speed conditions.

84mm NEMA standard flange

Universal North American / International installation dimensions, compatible with new and old equipment replacements.

6000rpm High Speed

Balanced torque and ultra-high speed, suitable for high-speed sorting, high-speed cutting, precise high-speed positioning.

High-reliability Tachogenerator Feedback

Resistant to high temperature, vibration, oil and dust, preferred in harsh industrial environments, maintenance-free, long lifespan.

Extended output shaft with key slot

Standard key slot transmission without slipping, extended shaft extension suitable for special mechanical structures, strengthened shaft seal to prevent oil and water leakage.

Double M23 Rotatable Angle Connector

Power feedback separation wiring, stronger anti-interference, any angle steering, neat wiring in the cabinet, space-saving.

No Brake Design Low inertia, high dynamics, suitable for horizontal shafts, high-frequency start-stop, and no vertical fall risk mechanisms.

IP67 high protection

Dust-proof, splash-proof, short-term water immersion, suitable for food, chemical, and dusty and humid harsh scenarios.

VII. Compatible Drives

Compatible with Kolemos 600V/800V high-voltage series:

AKD-P03607, AKD2G high-voltage models

Support: encoder closed-loop, EtherCAT, CANopen, pulse/digital quantity control

VIII. Typical Applications

High-speed CNC, high-speed packaging printing, textile machinery, woodworking equipment, high-speed logistics sorting, heavy industry vibration conditions, food and chemical equipment with dusty and humid environments;

Compatible with: 84mm flange, 600V ultra-high voltage, 6000rpm high speed, encoder high reliability, keyless slot extended shaft, IP67 protection scenarios.

IX. Summary of Model in One Sentence

AKM42G-EKCNR-01:

84mm NEMA square flange, No. 4 mounting base, medium-length stacking, 600V ultra-high voltage, 6000rpm high speed, keyless slot extended shaft, encoder, no brake, double M23 rotatable joints, IP67 high protection servo motor;

Positioning: ultra-high voltage high speed, high vibration resistance, suitable for harsh environments, industrial heavy-duty high-precision special-purpose.


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