Quick answer: Custom Glass Tubes covers OD 3 – 200 mm, cut length +/-0.1 mm. Prototypes ship in 5-10 working days.
A drawing for custom glass tubes is mostly a conversation about edges and datums. We produce them in fused silica, Borofloat 33, quartz and soda-lime at OD 3 – 200 mm, cut length +/-0.1 mm, with end squareness 0.05 mm as the controlling tolerance, and finish the perimeter per spec.
The numbers
| Geometry | Glass Tubes |
|---|---|
| Size envelope | OD 3 – 200 mm, cut length +/-0.1 mm |
| Key tolerance | end squareness 0.05 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 (end squareness 0.05 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: cnc machining, grinding, drilling – selected per geometry and volume. Edge condition: chamfered 0.1 – 0.5 mm as standard.
Typical applications
custom glass tubes shows up across oled packaging (cover lids, frit-seal frames, fill-port plates); machine vision (camera windows, ring-light diffusers, calibration plates); laboratory instruments (cuvettes, sight glasses, stir-cell windows).
The fastest route to a quote is geometry: use the 3D builder below, draw a dimensioned 2D drawing from it, or open the site-wide custom glass machining 3D + 2D builder for fully custom parts.
Related reading on this site: AR coating process, high-temperature quartz windows, infrared windows.
Buyer questions, answered
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 glass tubes?
OD 3 – 200 mm, cut length +/-0.1 mm, held to end squareness 0.05 mm.
Is there a minimum order for custom glass tubes?
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.