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CM2 External Irrigation Low Speed Air Motor - Self-Lubricating Dental Handpiece Motor

Eliminate handpiece jams and maintenance hassle with the CM2 Internal Irrigation Low Speed Air Motor. Our patented self-lubricating tech doubles lifespan, 50% more wear-resistant blades, and internal water cooling for precision dental work. 2/4 hole compatible.


  • Order Code: CM2
  • Noise: Less than 60dB
  • Rotation Speed: 20,000rpm
  • Applicable Bur: "E" TYPE CONNECTION
  • Chuck Type: Wrench Type

Product Details

CM2.jpgCM2 External Irrigation Low-Speed Air Motor

Self-Lubricating Innovation for Uninterrupted Dental Care


✨ Why the CM2 Is a Game-Changer for Your Practice

Tired of handpieces that jam mid-procedure or require constant lubrication? The CM2 Internal Irrigation Low-Speed Air Motor solves these common pain points with patented self-lubrication and ultra-durable components. It keeps your workflow smooth, reduces maintenance costs, and lets you focus entirely on your patients.

 Core Advantages That Drive Performance

  • Patented Self-Lubricating SystemNo more frequent lubrication! Our proprietary design doubles your handpiece lifespan from the standard 12 months to 12–24 months. It eliminates frustrating jams caused by insufficient lubrication and cuts down on costly downtime.

  • 50% More Wear-Resistant BladesWe’ve engineered the motor blades with a next-generation friction-resistant material. This reduces harmful powder buildup and prevents motor seizure, even with heavy daily use.

  • Internal Irrigation DesignDelivers a consistent, targeted water flow (90–110 ml/min) directly to the bur tip. This ensures optimal cooling, clear visibility, and effective debris removal for precise restorative and prosthodontic work.

  • Tool-Free Push-Button ChuckSwap between burs, polishers, discs, and reamers in seconds. This maintains clinical efficiency and eliminates the need for additional tools during procedures.

  • 2-Hole / 4-Hole CompatibilitySeamlessly integrates with your existing dental unit, making it a versatile upgrade for any clinic or lab.

 Technical Specifications

ParameterSpecification
Max Speed20,000 rpm
Air Pressure0.25–0.3 MPa
Water Pressure0.2–0.23 MPa (198 kPa)
Forward Rotation Speed18,000 rpm
Reverse Rotation Speed16,000 rpm
Torque0.4–0.45 N
Compatible Bur SizeΦ2.334–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 critical. Whether you’re preparing crowns, polishing composites, or adjusting prosthetics, the CM2 is built to handle the demands of daily clinical use.


Upgrade to a handpiece that works as hard as you do—reduce maintenance, boost efficiency, and deliver better patient care with the CM2.


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