Engineered for next-generation smart rings and health-tracking wearables, Sun Yin Crystal provides high-precision synthetic sapphire ring shells and housings.
Combining Mohs 9 scratch resistance with exceptional optical transparency, our sapphire shells protect delicate PPG/ECG sensors while delivering a premium aesthetic.
Key Features & Engineering Advantages:
- Optical Clarity for PPG Sensors: High optical transmittance across infrared and visible light spectra, ensuring accurate heart rate, SpO2, and biometric readings.
- Superior Surface Durability: Mohs Hardness 9 prevents everyday scratches, maintaining a sleek, pristine appearance.
- Precision CNC Machining: Multi-axis 5-axis CNC machining achieving ultra-tight wall thickness and inner-groove tolerances (±0.01mm) for seamless internal electronic assembly.
- Thermal & Skin Comfort: High thermal conductivity offers a cool-touch texture and smooth biocompatible contact for 24/7 continuous wear. - Customized Finishes: Available in transparent optical polish, frosted matte textures, PVD metallic tinting, or anti-fingerprint (AF) coatings.
Applications: Designed for smart ring OEMs, health monitor developers, and luxury smart wearable manufacturers requiring high-end protective sapphire casings. Contact Sun Yin Crystal today to submit 3D CAD models for custom prototype machining and volume production quotes.