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CM3 Internal Irrigation Low Speed Air Motor - Self-Lubricating Dental Handpiece

Cut down maintenance and avoid handpiece jams with the CM3 Internal Irrigation Low Speed Air Motor. Patented self-lubrication doubles lifespan, 50% more wear-resistant blades, and universal 2/4 hole fit for any dental clinic.


  • Order Code: CM3
  • Noise: Less than 60dB
  • Rotation Speed: 20,000rpm
  • Applicable Bur: "E" TYPE CONNECTION
  • Chuck Type: Wrench Type

Product Details

CM5.jpgCM3 Internal Irrigation Low-Speed Air Motor

Self-Lubricating Reliability for Daily Dental Procedures


✨ Why the CM3 Is a Must-Have for Your Clinic

If you need a low-speed motor that balances durability, ease of use, and cost-effectiveness, the CM3 delivers. Its patented self-lubrication system and wear-resistant blades eliminate the two biggest pain points of dental handpieces: frequent maintenance and unexpected jams—so you can keep your workflow smooth.

 Core Advantages That Simplify Your Workday

  • Patented Self-Lubricating SystemSkip frequent lubrication: this design doubles your handpiece’s lifespan (from 12 months to 12–24 months) and prevents mid-procedure jams caused by insufficient oiling.

  • 50% More Wear-Resistant BladesEngineered with a next-gen friction-resistant material, the motor blades reduce powder buildup and avoid seizure—even with heavy daily use in busy clinics.

  • Internal Irrigation DesignTargeted water flow (90–110 ml/min) keeps the treatment area cool, clear, and debris-free, so you can work with precision on restorations, polishing, or lab tasks.

  • Tool-Free Push-Button ChuckSwap burs, polishers, discs, or reamers in seconds—no extra tools needed to maintain clinical efficiency.

  • 2-Hole / 4-Hole CompatibilityPlugs seamlessly into your existing dental unit, making it a versatile, plug-and-play upgrade.

 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 dentists, hygienists, and dental labs that need consistent, low-speed performance for routine tasks like cavity preparation, composite finishing, and prosthetic adjustments.


The CM3 lets you focus on patient care, not handpiece maintenance—durable, reliable, and built for daily use.

Sefl-lubricanted Function of Air Motor:

Low speed motor has a self-lubricated function, which is the development patent of the company. When using the low speed handpiece, if don't often add the lubricant, the handpiece is easily stuck. With the self-lubricated device, the life of the handpiece will be extended to 2 times. Low speed handpiece's life is commonly 12 months. With the self-lubricated device, the life is between 12 and 24 months.

New Material of Air Motor:

The most common problem of motor is that it will lead to not turn or stuck, if not timely refueling. The most critical is that the blades driving the motor rotating is not resistant to friction and produce powder. So we adopt the newest research material, which wear resistance is increased by 50% than the original.

Features:

Air Pressure: 0.25(Mpa)-0.3(Mpa)

Water pressure: 198Kpa(2Kg)

Forward rotation speed: 18(krpm)

Reversal rotation speed: 16(krpm)

Torque: 0.4(N)-0.45(N)

Bur size: Φ2.334-Φ2.355(mm)

Water flow: 90(min/ml)-110(min/ml)

Water pressure: 0.2(Mpa)-0.23(Mpa)

Noise: ≤66dB

Chuck type:push button type

Description: internal water course, push button type, can use polisher, burs, dental lab disc, reamer, self-lubricated function of air motor, 2 holes and 4 holes optional


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