Kollmorgen AKM53K-ACCNR-00 Servo Motor Product Description

I. Product Overview

AKM53K-ACCNR-00 is a high-performance brushless synchronous servo motor from the AKM series by Kollmorgen. It belongs to the medium-power model within the AKM5 size range (flange 108mm). This model is a standard industrial-grade high-dynamic type, featuring high torque density, wide voltage compatibility, high-precision intelligent feedback, and high protection level. It is specifically designed for high-precision positioning, high response speed, and continuous stable operation in industrial automation scenarios. It can be perfectly matched with the Kollmorgen AKD series drives and is widely used in machine tools, robots, packaging, textiles, semiconductors, and other fields. 

II. Model Code Analysis (AKM53K-ACCNR-00)

AKM: Kolmorgen standard servo motor series

53K:

5: Frame size (5-flange, 108mm)

3: Rotor length (3 stacked segments, medium power)

K: Winding type (K class, suitable for 640VDC maximum bus voltage)

A: Installation method (IEC standard flange, N tolerance)

C: Shaft end type (shaft with keyway and solid core, key width 6mm)

C: Feedback device (SFD intelligent feedback, 24-bit single-loop absolute encoder)

N: Connector type (2 rotatable M23 angle connectors, Speed Tec Ready, IP65)

R: Winding parameters (R-type winding, suitable for 240VAC/640VDC bus)

00: Standard configuration (no brake, no special sealing, no custom accessories)

III. Core Technical Parameters

(1) Electrical Parameters

Maximum DC bus voltage: 640VDC

Rated power: 3.23kW (4.33HP, 640VDC bus)

Continuous stall torque: 11.6Nm

Peak torque: 30.1Nm

Continuous stall current: 9.4Arms

Peak current: 28.1A

Reverse electromotive force constant: 79.8Vrms/krpm

Phase-to-phase DC resistance (25℃): 1.06Ω

Rated speed: 5460rpm

Maximum speed: 6000rpm

Insulation class: F class (155℃)

Winding temperature rise: 100K (relative to 40℃ environment)

Thermal protection: Built-in PTC thermistor (action at 155℃ ± 5%)

(2) Mechanical Parameters

Flange size: 108×108mm (IEC standard, IM B5)

Shaft diameter: 19mm (k6 tolerance, shaft with keyway)

Rotor rotational inertia: 0.000912kg·m²

Weight: 7.0kg

Thermal time constant: 28 minutes

Thermal resistance: 0.5℃/W

Static friction torque: 0.058Nm (no shaft seal)

Bearing life: ≥20000 hours (rated conditions)

(3) Environment and Protection

Protection grade: Shell IP65, shaft end IP40 (optional shaft seal upgrade to IP65)

Operating temperature: -5℃ ~ +40℃ (altitude ≤1000m)

Storage temperature: -40℃ ~ +85℃

Humidity: 95% RH (no condensation)

Vibration / Shock: Compliant with IEC 60068-2-6/2-27 standards

Certifications: CE, UL, cURus certification

(4) Feedback and Connection

Feedback system: SFD 24-bit single-loop absolute encoder (intelligent feedback, battery-free, ready to read upon startup)

Connectors: 2 rotatable M23 angle connectors (power + feedback separation, 360° wiring)

Adapter cable: Kolmorgen standard M23 power cable, feedback cable (supports single-cable technology)

Installation direction: Supports any orientation (V1/V3 etc.)

IV. Product Core Characteristics

Ultra-high torque density

Optimized electromagnetic and structural design, output 11.6Nm continuous torque at 108mm flange size, volume smaller than similar products by 20%, suitable for compact design requirements of equipment, high acceleration response (≤1ms) for high-speed start-stop scenarios.

Low tooth槽， high stable operation

Using low harmonic distortion magnetic circuit and precise winding process， tooth槽 torque is minimal， low-speed operation without jitter， high-speed operation low noise (≤55dB)， positioning accuracy up to ±5 angle seconds， suitable for high-precision positioning， uniform speed transportation， contour control.

Wide voltage full-range compatibility K series winding supports a maximum bus voltage of 640VDC, is compatible with global standard power grids of 240/400/480VAC, and can directly match drivers such as AKD-P01206 and AKD-P02406 without voltage conversion. It has extremely strong versatility.

High-precision intelligent feedback

Standard SFD 24-bit single-loop absolute encoder, maintenance-free, battery-free, strong anti-interference, directly reads absolute position upon startup, no need for zero return, significantly shortens equipment startup time and improves production efficiency.

High protection and durability

IP65 housing protection, F-class insulation, fully sealed bearing design, resistant to temperature, humidity, and vibration, suitable for industrial environments with dust, oil, and mild humidity, with an average time between failures (MTBF) of ≥50,000 hours.

Flexible installation and connection

IEC standard flange compatible with European/American/Japanese installation specifications; rotatable M23 connector supports 360° wiring, flexible on-site installation; plug-and-play, automatically identifies and matches parameters with AKD drivers, convenient for debugging.

V. Typical Application Scenarios

Machine tools: CNC lathes, machining centers, grinding machines, engraving machines' feed axes, spindle drives

Industrial robots: multi-joint robots, SCARA robots, handling robots, palletizing robots

Packaging machinery: vertical/horizontal packaging machines, labeling machines, filling machines, cutting machines, bag-making machines

Textile machinery: warp knitting machines, weft knitting machines, dyeing and finishing equipment, winding machines' synchronous control

Electronic semiconductor: SMT assembly machines, semiconductor slicing machines, inspection equipment, bonding machines

Automation production lines: assembly lines, conveying lines, servo press-fitting machines, precision positioning platforms

Printing machinery: offset printing machines, flexographic printing machines, die-cutting machines, digital printing equipment

VI. Suggested Accessories and Configuration

Compatible drivers: Kollmorgen AKD series (AKD-P01206, AKD-P02406), SERVOSTAR series

Cable configuration: recommended Kollmorgen original M23 power cable (4×1mm²), feedback cable (4×2×0.25mm²)

Optional accessories: shaft end seal (upgraded to IP65), electromagnetic brake, extended shaft, special keyway, stainless steel fasteners, waterproof connector

VII. Summary of Product Advantages

AKM53K-ACCNR-00 is the flagship model of the AKM series in the standard industrial-grade medium power range. It features high torque density, high-precision feedback, wide voltage compatibility, high protection level, and high reliability. It balances performance, versatility, and installation flexibility, making it the preferred solution for high-precision, high-dynamic, and continuous stable industrial servo control scenarios. It significantly improves equipment positioning accuracy, response speed, and operational stability, reduces maintenance costs, and meets global industrial automation standards.