Quick answer: JGS1 Quartz Glass Square Glass Windows covers JGS1 Quartz Glass (CTE 0.55 x 10^-6 /K, 185 nm – 2.5 um (UV grade)); 5 x 5 mm to 300 x 300 mm, thickness 0.3 – 25 mm. Prototypes ship in 5-10 working days.
We build jgs1 quartz glass square glass windows to print – 5 x 5 mm to 300 x 300 mm, thickness 0.3 – 25 mm – primarily in JGS1 Quartz Glass. Typical use: instrument viewports and detector covers.
Key parameters
| Material | JGS1 Quartz Glass (UV-grade synthetic, bubble class 0) |
|---|---|
| Thermal expansion (CTE) | 0.55 x 10^-6 /K |
| Service temperature | 1,100 C continuous |
| Transmission range | 185 nm – 2.5 um (UV grade) |
| Density | 2.20 g/cm3 |
| Knoop hardness | 500 kg/mm2 |
| Refractive index | 1.458 @ 587 nm |
| Stock thickness | 0.10 – 30 mm |
| Maximum blank size | 300 mm diameter |
| Geometry | Square Glass Windows |
| Size envelope | 5 x 5 mm to 300 x 300 mm, thickness 0.3 – 25 mm |
| Key tolerance | side +/-0.03 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Getting the drawing right
Before sending the RFQ, check these against your drawing:
- Material note: UV-grade surfaces must be polished without subsurface damage that scatters below 250 nm.
- Hold the controlling dimension (side +/-0.03 mm) and let secondary dimensions carry standard tolerance – it is the single biggest cost lever.
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
For the complete framework, see the tolerance design guide and the holes and edges design guide.
Process window
Beyond this page, JGS1 Quartz Glass routinely runs through lapping, double-side polishing, dicing, coring in our shop – most real parts combine two or three of these steps.
Production route: cnc machining, polishing, edge grinding – selected per geometry and volume. Edge condition: chamfered 0.1 – 0.5 mm as standard.
Where these parts end up
Orders for jgs1 quartz glass square glass windows cluster in laser systems (windows, beam splitters, debris shields); aerospace optics (sensor windows, star-tracker flats, radiation-tolerant ports). Background reading on the underlying material science: RP Photonics: fused silica.
Dimensions still moving? Configure this part live in the 3D + 2D builder below, or open the full custom glass machining 3D + 2D builder to start from a blank canvas.
Useful companion pages: JGS1 quartz glass, fused silica wafers 2-12 inch, optical glass options.
Frequently asked questions
Is there a minimum order for jgs1 quartz glass square glass windows?
No. Single prototypes are accepted, and pricing steps down at 10, 100 and 1,000 pieces.
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
Specifications on this page were last reviewed by our engineering team in September 2026.