Quick Coupling Handpiece
The J7 dental handpiece delivers high rotation speeds of 350,000–380,000 RPM with smooth operation and minimal radial vibration (≤0.03 mm), ensuring precise cutting performance for professional dental procedures.
Technical Feature:
| Item | Parameter |
| Product Name | J7 Quick Coupling Dental Handpiece |
| Model | J7-TUQ |
| Rotating Speed | 350,000 – 380,000 rpm |
| Working Pressure | 0.23 – 0.25 MPa |
| Noise | ≤ 60 dB |
| Atomized Water Pressure | 0.3 MPa |
| Working Water Pressure | 0.2 – 0.23 MPa |
| Water Flow | 90 – 110 ml/min |
| Radial Vibration | ≤ 0.03 mm |
| Surface | Titanium Coating |
| Water Spray | Triple Spray |
| Chuck Type | Push Button |
| Cartridge | Exposed Cartridge |
| Bearing | German Ceramic Bearing |
| Sterilization | Autoclavable up to 135°C |
| Connection | 2 Hole / 4 Hole Quick Coupling (NSK Compatible) |
Bullet Points:
Zero Retraction Anti-Suction
Equipped with a zero retraction system that helps prevent backflow contamination inside the handpiece, improving infection control and maintaining hygiene standards during dental treatments.
German Ceramic Bearings
Built with high precision German ceramic bearings that provide stable performance, reduced friction, and low operational noise (≤60 dB) while extending the lifespan of the turbine.
Triple Water Spray System
The triple spray cooling design delivers uniform water flow (90–110 ml/min) around the bur to provide effective cooling and improve cutting efficiency during high-speed operation.
Titanium Coated Body
The handpiece features a titanium coated surface that enhances durability, corrosion resistance, and lightweight handling for long-term clinical use.
Quick Coupling System
Designed with a quick coupling connection compatible with 2-hole and 4-hole NSK systems, allowing fast attachment and removal while supporting smooth 360° swivel operation.
Push Button Chuck & Sterilization
The push button chuck system enables quick bur replacement while maintaining secure retention. The handpiece is fully autoclavable up to 135°C, supporting reliable sterilization and hygiene compliance.













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