PRODUCT CATEGORY
CM4 Internal Irrigation Low Speed Air Motor - Self-Lubricating Dental Handpiece
CM4 Internal Irrigation Low-Speed Air Motor
Self-Lubricating Durability for Uninterrupted Dental Workflows
✨ Why the CM4 Is Your Go-To Low-Speed Motor
Tired of handpieces that jam mid-procedure or demand constant lubrication? The CM4 solves these pain points with our patented self-lubrication system and ultra-wear-resistant blades. It delivers reliable performance, cuts maintenance costs, and lets you focus entirely on patient care.
Core Advantages That Drive Efficiency
Patented Self-Lubricating SystemEliminates the need for frequent lubrication and doubles your handpiece lifespan from the standard 12 months to 12–24 months. Say goodbye to frustrating jams and costly downtime.
50% More Wear-Resistant BladesBuilt with a next-generation friction-resistant material, the motor blades reduce powder buildup and prevent motor seizure, even with heavy daily use.
Internal Irrigation DesignDelivers a steady, targeted water flow (90–110 ml/min) directly to the bur tip for optimal cooling, clear visibility, and effective debris removal.
Tool-Free Push-Button ChuckSwap between burs, polishers, discs, and reamers in seconds to maintain clinical efficiency.
2-Hole / 4-Hole CompatibilitySeamlessly integrates with your existing dental unit, making it a versatile upgrade for any clinic or lab.
Technical Specifications
| Parameter | Specification |
|---|---|
| Max Speed | 20,000 rpm |
| Air Pressure | 0.25–0.3 MPa |
| Water Pressure | 0.2–0.23 MPa (198 kPa) |
| Forward Rotation Speed | 18,000 rpm |
| Reverse Rotation Speed | 16,000 rpm |
| Torque | 0.4–0.45 N |
| Compatible Bur Size | Φ2.334–Φ2.355 mm (standard CA burs) |
| Noise Level | ≤66 dB (quiet operation) |
Ideal For
General dentistry, prosthodontics, and dental lab applications where reliable low-speed performance is essential. Whether you’re preparing restorations, polishing composites, or adjusting prosthetics, the CM4 is built to handle daily clinical demands.
Upgrade to a handpiece that works as hard as you do—reduce maintenance, boost efficiency, and deliver better patient care with the CM4.





