Custom Round Glass Discs: Diameter 2 – 450 mm, thickness 0.1 – 50 mm. Single-piece prototypes to production volumes, quoted from your drawing.
We build custom round glass discs to print – Diameter 2 – 450 mm, thickness 0.1 – 50 mm – primarily in fused silica, Borofloat 33, quartz and soda-lime. Typical use: viewing ports, wafer carriers and sensor windows.
Key parameters
| Geometry | Round Glass Discs |
|---|---|
| Size envelope | Diameter 2 – 450 mm, thickness 0.1 – 50 mm |
| Key tolerance | diameter +/-0.02 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Design guidance
Before sending the RFQ, check these against your drawing:
- Hold the controlling dimension (diameter +/-0.02 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.
The full rules live in our tolerance design guide and holes and edges design guide.
Capabilities and limits
Production route: coring, cnc machining, edge grinding – selected per geometry and volume. Edge condition: entry/exit chamfer standard.
Typical applications
The recurring buyers of custom round glass discs: machine vision (camera windows, ring-light diffusers, calibration plates); led packaging (groove covers, phosphor carriers, package windows); oled packaging (cover lids, frit-seal frames, fill-port plates).
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.
For adjacent specifications, see precision glass grinding, material selection guide, glass in laser systems.
Frequently asked questions
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
What sizes are available for round glass discs?
Diameter 2 – 450 mm, thickness 0.1 – 50 mm, held to diameter +/-0.02 mm.
Is there a minimum order for custom round glass discs?
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.
Specifications on this page were last reviewed by our engineering team in September 2026.