Quartz glass manufacturer · Lianyungang, China · Since 2005
Quartz Glass Manufacturer: Custom Quartz Glassware, Tubes, Crucibles and Wafer Boats
FGQuartz is a quartz glass manufacturer in Lianyungang, China. We make standard and custom fused silica (SiO₂ ≥ 99.99%) tubes, rods, plates, wafer boats, crucibles, tanks and inline heaters, plus one-off parts from a drawing, a sample or a sketch. No minimum order, and quotes within 24 business hours.
Quartz Glass Tubes, Rods, Plates, Boats, Crucibles and More
Seven standard lines, all made in our own plant. Ranges are typical, not limits. See the full quartz glass product catalogue.
Furnace, diffusion, CVD and reaction tubes. OD 5–1000 mm.
Supports, preform work, stirring and fixtures. OD 3–300 mm.
Process plates, viewports and JGS optical windows. Up to 1200 × 1200 mm.
For diffusion, oxidation and LPCVD furnaces. 2–12 in wafers.
Crystal growth and laboratory use. 10 ml to 32 in CZ.
Welded baths and tanks for wet processing, to drawing.
Flow-through heating chambers for ultra-pure liquids.
Anything else that can be formed or machined from fused silica.
Not sure which line you need?
| If you are working on… | Start with |
|---|---|
| Diffusion, oxidation or LPCVD furnace | Tubes, boats, rods, plates, ordered as one set |
| Pulling silicon crystals (CZ / DS) | Crucibles |
| Laboratory ashing, melting, digestion | Crucibles, boats and custom labware |
| UV measurement, laser optics, viewing a hot process | Plates and windows, JGS grade chosen by wavelength |
| Heating clean liquid without metal contact | Inline heaters (not for HF) |
| Wet-bench baths and soak vessels | Tanks |
| Something else | Custom quartz glass |
Custom Quartz Glassware from a Drawing, Sample or Sketch
You do not need a finished drawing. Our engineers start from a CAD file (DXF, STEP, IGES, PDF), a hand sketch, photos, a worn sample, or a plain description of what the part must do.
Hot work (flame forming, bending, sealing, welding) and cold work (diamond cutting, drilling, grinding, polishing) happen in the same plant, followed by annealing and inspection. One team handles quartz parts manufacturing from first cut to final check. More on thermal processing and cold processing.
Typical requests: matched sets of crucibles or beakers, multi-port vessels, closed-end tubes, flow cells with a set path length, standard ground joints (14/20 to 29/42), and copies of discontinued parts.
- 1. Tell us. Send the idea, sketch, sample or drawing, with temperature, chemicals and quantity if known.
- 2. Engineering review. We confirm feasibility, grade and build route, and flag risks.
- 3. Quotation. Price and lead time within 24 business hours. Simpler parts 7–14 days, complex assemblies 3–6 weeks.
- 4. Make, check, ship. Annealed, inspected under ISO 9001 and packed for export.
Quartz Glass for Semiconductor, Solar, Optics and Laboratory Use
The same product families serve very different processes. Pick your industry for typical parts and limits.
Semiconductor
Furnace tubes, wafer boats, injectors, wet-bench tanks and heaters.
Solar photovoltaic
Crystal-growth crucibles, diffusion tubes and cell boats.
Optics and photonics
Windows, plates, cuvettes and flow cells in JGS1, JGS2 or JGS3.
Laboratory
Crucibles, boats, tubes and custom apparatus for ashing, digestion and synthesis.
Fiber optic
Substrate tubes, jacketing tubes and starting rods for preforms.
High-temperature industrial
Furnace liners, heater envelopes, thermocouple sheaths and viewports.
Is Quartz Glass the Right Material for Your Process?
Fused silica runs to 1200°C continuous (1300°C short-term), passes deep UV in optical grades and resists hot mineral acids, but it is brittle. Numbers are in the technical specifications, the quartz vs borosilicate comparison and the JGS grade guide.
Good fit
- Service above borosilicate limits, up to 1200°C
- No metal or alkali pick-up from the vessel
- Light below about 300 nm must pass
- Hot HCl, HNO₃, H₂SO₄, aqua regia or solvents
Ask us first
- Pressure or vacuum (wall is calculated per drawing)
- Molten alkali salts or fluxes
- Long tubes running unsupported
- Surfaces heated above about 1150°C after handling
Wrong material
- Hydrofluoric acid
- Hot concentrated phosphoric acid
- Hot strong alkalis such as KOH or NaOH
- Continuous service above about 1200°C, or heavy impact
Why Buyers Choose FGQuartz as Their Quartz Glass Manufacturer
FGQuartz is a manufacturer, not a trader. Melting, drawing, diamond machining, flame work, polishing and annealing all happen in our 15,000 m² ISO 9001 plant in Lianyungang, so a drawing never passes between workshops.
- Standard and custom parts from one supplier, so a furnace set can match in one material system.
- Start with a single prototype, then repeat or scale.
- If quartz is wrong for your chemistry or temperature, we tell you before you pay.
- 500+ customers in 40+ countries, with export packing and documentation.
Guides: What is quartz glass? · Specifications · Quartz vs borosilicate · JGS grades · FAQ · About FGQuartz
Written by the FGQuartz Engineering Team · Updated November 2026
Frequently Asked Questions
Get a Quartz Glass Quote from FGQuartz
Tell our quartz glass manufacturer team what you need. None of this is mandatory:
- What the part is for, and a drawing, sketch, photo or old part
- Operating temperature, chemicals and gases
- Size limits, finish or optical grade
- Quantity: one prototype or a production run
Email: info@fgquartz.com · Reply: within 24 business hours