Quick answer: Quartz Glass With Precision Holes covers Quartz Glass (CTE 0.59 x 10^-6 /K, 260 nm – 2.5 um); position +/-0.02 mm, diameter from 0.15 mm. Prototypes ship in 5-10 working days.
When a drawing calls out Quartz Glass, three numbers matter before any machining starts: CTE of 0.59 x 10^-6 /K, service temperature to 1,050 C continuous, and a transmission window of 260 nm – 2.5 um. quartz glass with precision holes here begin with those numbers and end with dimensional reports.
Specifications at a glance
| Material | Quartz Glass (GE214-equivalent, semiconductor grade) |
|---|---|
| Thermal expansion (CTE) | 0.59 x 10^-6 /K |
| Service temperature | 1,050 C continuous |
| Transmission range | 260 nm – 2.5 um |
| Density | 2.20 g/cm3 |
| Knoop hardness | 500 kg/mm2 |
| Refractive index | 1.459 @ 587 nm |
| Stock thickness | 0.20 – 60 mm |
| Maximum blank size | 450 mm diameter |
| Feature | Precision Holes |
| Capability | position +/-0.02 mm, diameter from 0.15 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Manufacturing capability
One material, many routes: on Quartz Glass we also quote dicing, ultrasonic machining, grinding, sandblasting, and multi-step drawings are the norm rather than the exception.
These features are produced by drilling or laser cutting. Capability: position +/-0.02 mm, diameter from 0.15 mm. Design rule worth copying onto the drawing: keep hole-to-edge distance above 1.5x thickness.
Specification advice
Three items decide most of the cost and lead time on this work:
- Material note: natural-quartz batches vary in metallic ppm, so semiconductor lots need certs per melt.
- Feature rule: keep hole-to-edge distance above 1.5x thickness.
- 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.
Typical applications
Orders for quartz glass with precision holes cluster in semiconductor equipment (view ports, wafer carriers, plasma rings, chamber windows); laboratory instruments (cuvettes, sight glasses, stir-cell windows). Background reading on the underlying material science: ScienceDirect: quartz glass.
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: high-temperature quartz windows, high-purity quartz guide, fused silica material guide.
Frequently asked questions
How does Quartz Glass behave under heat?
CTE is 0.59 x 10^-6 /K and continuous service reaches 1,050 C continuous, which is what drives its use where fused from natural quartz crystal matters.
What is the design rule for precision holes?
Keep hole-to-edge distance above 1.5x thickness.
Is there a minimum order for quartz glass with precision holes?
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 August 2026.