DESCRIPTION
The CPM-80-25 Harmonic Drive Gear Motor is a compact, high-precision robotic joint actuator engineered for advanced automation and robotic systems.
Featuring an integrated harmonic reducer with built-in cross roller bearing, this unit delivers exceptional rigidity, ultra-low backlash (5–10 arcmin), and smooth torque transmission. With 500W rated power and up to 50Nm peak torque, it is ideal for robotic arm joints, collaborative robots, and precision positioning platforms.
The 18N20P motor structure ensures high torque density and efficient power delivery, while the full metal housing enhances structural stability and durability. Supporting 24V / 36V / 48V configurations, the CPM-80-25 provides flexible integration for industrial and research applications.
Its ultra-slim 29.7mm profile and lightweight 430g construction make it an excellent solution for compact robotic designs requiring high torque in limited space.
KEY FEATURES
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Integrated Harmonic Drive with Cross Roller Bearing
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Ultra-Low Backlash: 5–10 arcmin
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High Torque Density in Compact 80mm Form Factor
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500W High Performance Motor
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10Nm Rated / 50Nm Peak Torque
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25:1 Reduction Ratio
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18N20P High Efficiency Motor Structure
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Built-in NTC Temperature Monitoring
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Full Metal Steel Housing
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High Radial & Axial Load Capacity (500N)
SPECIFICATIONS
| General Parameters | Electrical Parameters | ||
|---|---|---|---|
| Model | CPM-80-25 | Voltage Options | 24V / 36V / 48V |
| Outer Diameter | 80 mm | Motor Power | 500 W |
| Thickness | 29.7 mm | Rated Bus Current | 12 A |
| Gear Ratio | 25:1 | Max Phase Current | 33 A |
| Backlash | 5–10 arcmin | No-Load Current | 0.08 A |
| Net Weight | 430 g | Phase Resistance | 22 mΩ |
| Housing Material | Steel | Phase Inductance | 235 μH |
| Performance Parameters | Motor Characteristics | ||
|---|---|---|---|
| Rated Speed | 120 RPM | Motor Structure | 18N20P |
| No-Load Speed | 168 RPM | Motor KV Rating | 104 KV |
| Rated Torque | 10 Nm | Back EMF Constant | 0.0727 Vs/Rad |
| Peak Torque | 50 Nm | Thermistor | 10K B3435 |
| Radial Load Capacity | 500 N | NTC B Value | 3435 |
| Axial Load Capacity | 500 N |
APPLICATIONS
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Robotic Arm Joint Modules
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Collaborative Robots (Cobots)
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Humanoid Robot Actuators
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AGV / AMR Steering Systems
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Precision Rotary Tables
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Industrial Automation Equipment
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Research & Laboratory Robotics
WHY CHOOSE CPM-80-25?
Compared to conventional planetary gear motors, harmonic drive actuators offer:
✔ Higher positioning accuracy
✔ Lower backlash
✔ Higher torque-to-weight ratio
✔ Better repeatability
✔ More compact integration
Perfect for high-end robotics and precision automation systems.
