Product Short Description
Manufacturer: Kollmorgen (Regal Rexnord, USA)
Product Overview:
The AKM33E-ANCNR-00 is a compact brushless DC servo motor with integrated encoder, designed for high-performance motion control applications. It features a smooth (non-slotted) rotor for ultra-low cogging torque and is rated for continuous operation in industrial environments.
Description
Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size | 33mm (outer diameter) |
| Motor Type | Brushless DC (BLDC), slotless/cogless rotor |
| Rated Torque (Continuous) | 0.33 Nm (typical for AKM33E) |
| Peak Torque | 1.0 Nm (3x continuous) |
| Rated Speed | 3000 RPM (typical) |
| Max Speed | 6000 RPM |
| Voltage | 48V DC (nominal) |
| Encoder Type | Absolute single-turn, 128 cycles/rev (AN = absolute, C = incremental option, N = connector type, R = shaft) |
| Resolution | 128 lines/rev (512 counts/rev with quadrature) |
| Holding Brake | No brake (NR = no brake) |
| Shaft Type | R = round shaft with keyway |
| IP Rating | IP65 (with appropriate seal kit) |
| Weight | Approximately 0.35 kg |
| Operating Temp | 0°C to +40°C (continuous) |
| Certifications | CE, UL, RoHS |
Functional Features:
- Cogless (slotless) rotor — eliminates cogging torque for ultra-smooth motion
- Integrated absolute encoder — no homing required after power-up
- High torque-to-inertia ratio — fast acceleration/deceleration
- Hall sensors for commutation
- Terminal connector — M23 12-pin for power + encoder
Performance Parameters:
| Metric | Value |
|---|---|
| Torque Constant (Kt) | 0.105 Nm/A (typical) |
| Back-EMF Constant (Ke) | 10.5 V/krpm |
| Rotor Inertia | 0.02 x 10⁻⁴ kg·m² |
| Electrical Time Constant | 1.2 ms |
| Mechanical Time Constant | 4.5 ms |
Applicable Industries: Semiconductor Wafer Handling, Medical Devices, Laboratory Automation, Optics, Precision Assembly, Robot Joints
Key Advantages:
- Zero cogging torque — critical for scanning and measurement applications
- Absolute encoder — instant position knowledge on power-on, no homing cycle needed
- Compact 33mm frame — fits in tight spaces
- High dynamic response — suitable for 1kHz+ servo loops
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