Sapphire Sight-Glass Windows: Sample vs Mass-Production Lead Time
Samples of sapphire sight-glass windows: typically 1–2 weeks. Mass production: approximately one month, depending on size, thickness and coating requirements. This schedule is backed by real capacity — over 20 million sapphire lenses per year, 600+ staff and 50,000 m² across Shenzhen Bao'an and Heyuan Dongyuan.
What drives the difference
A sample is cut, lapped, polished (and coated, if specified) as a single part. Mass production adds batch scheduling, tooling runs and, for coated windows, coating-chamber cycles. Our digital MES-managed smart factory tracks each stage so the quoted date reflects actual load.
Window capability
| Parameter | Capability |
|---|---|
| Window size | 10 mm – 500 mm |
| Thickness | 0.3 mm – 100 mm |
| Machining range | φ2 mm – φ300 mm; circular OD ±0.01 mm |
| Surface quality | 80/50 · 60/40 · 40/20 |
| Sample lead time | Typically 1–2 weeks |
| Mass-production lead time | Approximately one month |
Frequently asked questions
How long is a sapphire window sample?
Typically 1–2 weeks.
How long is a production order?
Approximately one month, depending on size, thickness and coating.
Can you hold a delivery date for an industrial line?
Yes — tell us the target date and we will confirm what the current schedule allows.
https://www.sunyinsapphire.com/
SUN YIN CRYSTAL INDUSTRY COMPANY LTD
