INSADENTAL INSA-303 LED E-Generator Dental High Speed Handpiece Triple Water Spray Standard Head Air Turbine Ceramic Bearing 2 Hole / 4 Hole Self Powered Dental Handpiece for Dentist Clinic

 INSADENTAL INSA-303 self-powered LED high speed dental handpiece with triple water spray, ceramic bearing, 380000-450000rpm, compatible with 2/4 hole dental chair, ideal for daily dental clinic restoration treatment.

Product Overview

INSADENTAL INSA-303 is a premium self-powered LED high speed air turbine handpiece designed for professional dental clinics. Equipped with built-in E-generator LED light source, triple-hole water spray cooling system and silent ceramic bearings, this handpiece delivers bright field illumination and efficient cooling during all dental cutting procedures.

The ergonomic knurled anti-slip aluminum body offers stable grip for long-hour operation, fully autoclavable at high temperature, and supports both 2-hole and 4-hole standard dental chair connectors, perfect for routine cavity preparation, crown trimming, molar cutting and restorative dentistry.

Core Product Specifications

• Model: INSA-303

• Brand: INSADENTAL / Accept OEM Laser Logo Customization

• Material: High-strength lightweight aviation aluminum alloy

• Bearing: Imported high-speed silent ceramic ball bearings

• Light Source: Built-in E-generator LED (self-powered, no external power cord needed)

• Water Cooling: Triple water spray multi-directional cooling system

• Rotation Speed: 380,000 – 450,000 RPM

• Working Noise: ≤65dB low noise smooth operation

• Compatible Connector: 2 Hole / 4 Hole dental unit coupling

• Chuck Standard: Standard push button bur chuck

• Head Size: Standard head for universal dental treatment

• Sterilization: Support 135℃ high temperature autoclave disinfection

• Warranty Period: 1 full year factory warranty

Key Feature Details

1. Self-Generating LED Illumination System

No external fiber optic tube required. The built-in miniature power generator creates bright white LED light automatically when the handpiece runs, fully lighting the oral cavity treatment area, eliminates shadow blind spots for precise operation, greatly improving treatment efficiency.

2. Triple Water Spray Multi-Angle Cooling

Three independent water outlet holes surround the bur, spraying cooling water evenly from multiple directions to rapidly reduce heat generated during tooth grinding, effectively prevent pulp damage and extend bur service life, compared to single spray handpieces, cooling performance is significantly improved.

3. Anti-Slip Knurled Ergonomic Body

The middle section of the handpiece adopts dense ring-shaped knurling texture, increases friction to prevent slipping when hands are stained with water or blood, effectively reducing operator fatigue during long-term continuous treatment. The streamline curved body fits the oral cavity angle, easy access to posterior molars.

4. High Durability Ceramic Bearings

Wear-resistant ceramic bearings reduce friction loss during high-speed rotation, deliver stable power output, lower vibration and running noise ≤65dB, extend overall handpiece service life, reduce frequent maintenance frequency for clinics.

5. Universal Dual Interface Compatibility

The rear connector supports both 2-hole and 4-hole dental chair air pipelines, no extra adapter needed, can be directly matched with most mainstream dental chair brands worldwide, convenient for clinic equipment replacement and batch procurement.

Application Scenarios

• General dental clinic daily restorative treatment: cavity preparation, tooth cutting, crown & bridge trimming

• Posterior molar grinding, orthodontic tooth preparation, periodontal basic treatment

• Dental hospital, private dental clinic, dental training institution backup equipment

• Dental equipment wholesaler bulk order & retail supply

OEM & After-Sales Support

Support INSADENTAL brand customized laser engraving logo on handpiece body; We can provide product test reports, specification datasheets and CE certification documents for medical tender bidding. All INSA-303 handpieces enjoy 12-month full warranty, spare turbine rotor and bearing accessories are available for separate supply.