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Phone: +86 16626708626Description
The Kollmorgen AKM42E-EKGNR-01 is a frameless brushless servo motor from Kollmorgen’s flagship AKM series, designed for high-precision, space-constrained motion control applications. This motor, with a compact 42 mm diameter, offers exceptional continuous torque of 0.97 Nm and peak torque of 3.2 Nm, making it suitable for tasks where dynamic response and high power density are critical, such as robotic joints, semiconductor manufacturing equipment, and medical actuators.
This frameless motor architecture (comprising stator and rotor only) allows direct integration into the machine structure, eliminating the need for traditional couplings and reducing mechanical complexity. Featuring a high-energy NdFeB magnet rotor and advanced thermal management, it withstands continuous stall operations at high winding temperatures (up to 155°C). The motor incorporates a 20-bit single-turn EnDat 2.2 absolute encoder, providing positioning accuracy to ±40 arc-seconds together with high-speed, real-time feedback ideal for advanced servo drives compatibility.
- AKM33E-ANCNR-00
Designed for smooth operation, the AKM42E-EKGNR-01 boasts very low cogging torque (<1% torque ripple) and sinusoidal back-EMF with less than 3% total harmonic distortion, ensuring noise-free and vibration-minimized performance. Its IP65-rated stator windings make it suitable for dirty or contaminated industrial environments typical in food, pharmaceutical, and semiconductor industries. When paired with Kollmorgen AKD® servo drives, the motor enables sophisticated control techniques such as adaptive ripple compensation and notch filtering, which minimize mechanical resonances and boost overall system performance.
| Parameter | Value |
|---|---|
| Product Model | Kollmorgen AKM42E-EKGNR-01 |
| Manufacturer | Kollmorgen (Altron Group) |
| Product Type | Frameless Brushless Servo Motor |
| Frame Size | 42 mm |
| Continuous Torque | 0.97 Nm @ 155°C winding temp |
| Peak Torque | 3.2 Nm (drive limited) |
| Continuous Current | 3.5 A RMS |
| Peak Current | 11.4 A RMS |
| Voltage Constant | 14.6 V/kRPM |
| Torque Constant | 0.28 Nm/A |
| Maximum Speed | 10,000 RPM |
| Feedback | EnDat 2.2 20-bit absolute encoder |
| Thermal Class | Class H (155°C) |
| Rotor Inertia | 8.7 g·cm² |
| Weight (stator only) | 0.28 kg |
| Environmental Rating | IP65 |
Related products include the AKM42E-ANCBNR-00 frameless motor variant with resolver feedback for extreme temperature applications, the framed AKM42D-ANCBNC-00 motor for standalone mounting, and the matching AKD-N04306-NAEC-0000 servo drive supporting EnDat 2.2 feedback. Accessories such as right-angle gearheads (e.g., RBE-02-4000) and pre-integrated ball screw kits enhance system customization.
Installation is simplified by the frameless design allowing OEMs to embed the motor directly into machine joints or assemblies with minimal mechanical interfaces. It requires careful alignment and mounting stiffness to maximize dynamic performance and minimize vibration. The included thermal sensors allow integration into advanced servo drive monitoring systems to protect against overheating. Consistent diagnostic checks and firmware updates enhance reliability and uptime.
