Kollmorgen AKM2G Next-Gen Brushless AC Servo Motors
The Kollmorgen AKM2G Servo Motor Series (featured model: AKM2G-42E-ANCNC-00 4.2 Nm 6000 RPM) represents Kollmorgen's 2nd generation flagship brushless AC servo motor platform, delivering up to **30% higher torque density** in the exact same physical frame envelope as legacy servo designs. Engineered with advanced electromagnetic stator slotting and high-coercivity Neodymium-Iron-Boron magnets, AKM2G motors dramatically increase acceleration torque while maintaining ultra-low cogging ripple for precision velocity smoothing. Covering continuous stall torque ratings from 0.62 Nm up to 72 Nm across 6 frame sizes (58mm to 188mm flange dimensions), AKM2G motors feature single-cable **SFD3 / HIPERFACE DSL** digital feedback technology (reducing cabling complexity and cabinet footprint), multi-turn absolute EnDat/BiSS encoders, 24V failsafe holding brakes, and IP65 shaft/housing protection. Optimized specifically for seamless plug-and-play autotuning with **Kollmorgen AKD and AKD2G digital servo drive amplifiers**, AKM2G motors serve as the ultimate high-performance upgrade for robotics, automated packaging, CNC machine tools, and semiconductor processing equipment.
Technical Specifications
| Featured Model | AKM2G-42E-ANCNC-00 (4.2 Nm Continuous Stall Torque, 6000 RPM Max Speed, 84mm Flange, Resolver, Smooth Shaft, IP65 Housing) |
|---|---|
| Brand / Manufacturer | Kollmorgen (Regal Rexnord Motion Control) |
| Product Series | AKM2G Series Next-Generation High-Density AC Servo Motors |
| Frame Sizes Covered | AKM2G-2 (58mm), AKM2G-3 (72mm), AKM2G-4 (84mm), AKM2G-5 (108mm), AKM2G-6 (138mm), AKM2G-7 (188mm) |
| Continuous Stall Torque | 0.62 Nm to 72.0 Nm (5.5 lb-in to 637 lb-in); Peak Torques up to 3x Continuous Rating |
| Operating Bus Voltages | 120V AC, 240V AC, 400V AC, & 480V AC Mains Input (50/60 Hz) |
| Digital Single-Cable Options | SFD3 Digital, HIPERFACE DSL Single-Cable, EnDat 2.2 / BiSS C Absolute, 2-Pole Resolver |
| Enclosure & Thermal Class | IP65 Protection Standard (IP67 Optional); Class H Winding Insulation System (Low Thermal Resistance) |
Documentation & Resources
Kollmorgen AKM2G Series Frame Size, Torque & Speed Matrix
Complete selection matrix for Kollmorgen AKM2G next-gen servo motors. Review frame sizes, continuous stall torques, peak torques, max speeds, and standard model codes:
| Motor Frame Size | Flange Size (mm) | Cont. Stall Torque (Nm) | Peak Torque (Nm) | Max Speed (RPM) | Kollmorgen Model Code Example |
|---|---|---|---|---|---|
| AKM2G-2 Series | 58 mm | 0.62 Nm - 1.80 Nm | 1.86 Nm - 5.40 Nm | 8,000 RPM | AKM2G-22C-ANCNC-00 |
| AKM2G-3 Series | 72 mm | 1.45 Nm - 4.20 Nm | 4.35 Nm - 12.6 Nm | 8,000 RPM | AKM2G-32C-ANCNC-00 |
| AKM2G-4 Series | 84 mm | 2.60 Nm - 8.50 Nm | 7.80 Nm - 25.5 Nm | 6,000 RPM | AKM2G-42E-ANCNC-00 |
| AKM2G-5 Series | 108 mm | 6.50 Nm - 18.5 Nm | 19.5 Nm - 55.5 Nm | 6,000 RPM | AKM2G-52H-ANCNC-00 |
| AKM2G-6 Series | 138 mm | 15.0 Nm - 38.0 Nm | 45.0 Nm - 114.0 Nm | 6,000 RPM | AKM2G-62K-ANCNC-00 |
| AKM2G-7 Series | 188 mm | 35.0 Nm - 72.0 Nm | 105.0 Nm - 216.0 Nm | 4,500 RPM | AKM2G-73P-ANCNC-00 |
Kollmorgen AKM Standard to AKM2G Next-Gen Upgrade Guide
First generation AKM servo motors can be seamlessly upgraded to AKM2G next-generation motors to gain up to 30% more torque output in the exact same footprint:
| Legacy AKM Motor Model | Legacy Torque & Frame | Next-Gen AKM2G Equivalent | Key Performance & Torque Upgrades |
|---|---|---|---|
| Kollmorgen AKM22E Servo | 0.84 Nm (58mm Frame) | Kollmorgen AKM2G-22C 30% Torque Increase | Increases continuous stall torque to 1.15 Nm without enlarging motor dimensions. |
| Kollmorgen AKM33H Servo | 2.75 Nm (70mm Frame) | Kollmorgen AKM2G-32C / 33D 30% Torque Increase | Increases stall torque up to 3.50 Nm, single-cable digital DSL feedback support. |
| Kollmorgen AKM42H Servo | 3.40 Nm (84mm Frame) | Kollmorgen AKM2G-42E 30% Torque Increase | Delivers 4.20 Nm torque output, reduced thermal resistance and lower cogging. |
| Kollmorgen AKM52K Servo | 8.50 Nm (108mm Frame) | Kollmorgen AKM2G-52H 30% Torque Increase | Delivers 11.0 Nm continuous torque, rapid dynamic acceleration response. |
Expert Technical Sourcing & Servo Motion Control Integration Notes
When upgrading existing machinery or designing next-generation automated packaging equipment, robotics, or CNC tools, switching to Kollmorgen AKM2G series motors delivers immediate motion advantages: up to 30% higher continuous and peak torque density in the same flange size, single-cable wiring to reduce installation labor, automatic autotuning with Kollmorgen AKD / AKD2G servo drive amplifiers, and complete physical mounting compatibility. Simply supply us with your existing motor nameplate serial number or complete model code (e.g., AKM2G-42E-ANCNC-00 or AKM42H-ANCNC-00), and our technical engineering team will deliver a 100% compliant servo upgrade specification and proposal.
Core Benchmark Model Standard Configurations
- AKM2G-22C-ANCNC-00 (1.15 Nm Servo)
- AKM2G-32C-ANCNC-00 (1.80 Nm Servo)
- AKM2G-33D-ANCNC-00 (2.80 Nm Servo)
- AKM2G-42E-ANCNC-00 (4.20 Nm Servo)
- AKM2G-43F-ANCNC-00 (6.00 Nm Servo)
- AKM2G-52H-ANCNC-00 (11.0 Nm Servo)
- AKM2G-53J-ANCNC-00 (14.5 Nm Servo)
- AKM2G-62K-ANCNC-00 (22.0 Nm Servo)
- AKM2G-73P-ANCNC-00 (52.0 Nm Servo)
- Kollmorgen AKM2G Single Cable DSL Motor
- Kollmorgen AKM2G SFD3 Digital Servo
- Kollmorgen AKM2G 24V Holding Brake
- Kollmorgen AKM2G EnDat Absolute Encoder
- Kollmorgen AKM2G IP65 Brushless Motor
- Kollmorgen AKM2G High Torque Servo
- Kollmorgen AKM2G AKD2G Matched Servo
- Kollmorgen AKM2G Robotics Servo Drive
- Kollmorgen AKM2G Packaging Machine Motor
- Kollmorgen AKM2G Low Cogging Servo
- Kollmorgen AKM to AKM2G Upgrade Motor
