Quick answer: Ultrasonic Machining JGS2 Quartz Glass covers JGS2 Quartz Glass (CTE 0.55 x 10^-6 /K, 220 nm – 2.5 um); Ultrasonic Machining to +/-0.02 mm form. Prototypes ship in 5-10 working days.
We ultrasonically machine JGS2 Quartz Glass daily, in thicknesses from 0.5 – 25 mm. The controlling numbers: +/-0.02 mm form working tolerance, 0.3 mm blind features minimum features, and matte machined surface off the machine. Where the drawing asks for more, downstream lapping and polishing take over.
Specifications at a glance
| Material | JGS2 Quartz Glass (Optical grade, bubble class 1) |
|---|---|
| Thermal expansion (CTE) | 0.55 x 10^-6 /K |
| Service temperature | 1,100 C continuous |
| Transmission range | 220 nm – 2.5 um |
| Density | 2.20 g/cm3 |
| Knoop hardness | 500 kg/mm2 |
| Refractive index | 1.458 @ 587 nm |
| Stock thickness | 0.20 – 40 mm |
| Maximum blank size | 300 mm diameter |
| Process | Ultrasonic Machining |
| Working tolerance | +/-0.02 mm form |
| Minimum feature | 0.3 mm blind features |
| Surface finish | matte machined surface |
| Thickness window | 0.5 – 25 mm |
| Edge condition | crack-free feature edges |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Process window
Ultrasonic Machining earns its place through blind cavities, non-round holes and stepped profiles that rotary tools cannot reach. Its boundary condition – material removal is slow, so it is reserved for features other processes cannot form – is the first thing our DFM review checks.
Beyond this page, JGS2 Quartz Glass routinely runs through dicing, lapping, double-side polishing, drilling in our shop – most real parts combine two or three of these steps.
DFM notes from the shop floor
Before sending the RFQ, check these against your drawing:
- Material note: thicker blanks need stress-relief annealing before tight-flatness grinding.
- Process boundary: material removal is slow, so it is reserved for features other processes cannot form.
- 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.
Who orders this
The recurring buyers of ultrasonic machining jgs2 quartz glass: led packaging (groove covers, phosphor carriers, package windows); laboratory instruments (cuvettes, sight glasses, stir-cell windows); microfluidic devices (chips, manifolds, via plates, bonded stacks). Background reading on the underlying material science: ScienceDirect: fused quartz.
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: fused silica wafers 2-12 inch, fused silica wafer applications, glass-bottom microplates.
Frequently asked questions
What equipment runs the ultrasonic machining work?
20 kHz ultrasonic spindles with shaped diamond form tools.
Is there a minimum order for ultrasonic machining jgs2 quartz glass?
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.