High Purity Quartz Glass Products | Fused Silica Manufacturer
FGQuartz manufactures a complete range of high-purity fused silica products for semiconductor, solar photovoltaic, optical, fiber-optic and laboratory applications. Our portfolio includes quartz glass tubes, rods, plates, semiconductor wafer boats, crucibles for crystal growth, and fully custom fused silica components — all produced from high-purity material with consistent quality from prototype to production.
Complete Quartz Glass Product Portfolio
We supply a full series of industrial and semiconductor-grade quartz glass products. High SiO₂ purity (≥ 99.99%), precise dimensional control and reliable thermal performance make our materials suitable for high-temperature processing, optical systems, fiber preform manufacturing and laboratory use.
High-purity fused quartz tubes for diffusion furnaces, CVD/LPCVD equipment, optical fiber production and high-temperature process applications. Available in OD 5–1000 mm with consistent wall thickness and excellent concentricity.
Solid fused quartz rods with excellent thermal stability and optical clarity. Used for fiber preforms, laboratory stirring rods, support elements and precision structural components. Diameters typically 3–300 mm.
Optical-grade polished quartz plates and windows with high flatness and broad spectral transmission (JGS1 / JGS2 / JGS3). Ideal for observation windows, substrates, viewports and high-temperature viewing applications.
Semiconductor-grade quartz wafer boats for oxidation, diffusion and annealing furnaces. Designed for 2–12 inch wafers with low particle generation, precise slot spacing and uniform thermal performance.
High-purity quartz crucibles for CZ and MCZ silicon crystal growth, chemical analysis and high-temperature melting. Available in a range of sizes with excellent thermal shock resistance and low contamination.
Fully custom fused silica components manufactured to your drawing. CNC cold working and oxy-hydrogen hot working enable complex geometries, special assemblies and both prototype and production quantities.
Key Advantages of FGQuartz Products
- Ultra-high purity — SiO₂ ≥ 99.99%, low metallic impurities, suitable for semiconductor and ultra-clean processes
- Excellent thermal performance — continuous use up to 1200 °C, short-term up to 1300 °C, softening point ≈ 1680 °C
- Ultra-low thermal expansion — 5.5 × 10⁻⁷ /°C, outstanding thermal shock resistance
- Broad optical transmission — from deep UV to near-infrared (JGS1 / JGS2 / JGS3 grades available)
- Precise dimensional control — tight tolerances on diameter, wall thickness, flatness and concentricity
- Full customization — standard products + fully custom components made to drawing (DXF / STEP / PDF)
Industries We Serve
Our high-purity quartz glass products are trusted across six major industries worldwide:
- Semiconductor — process tubes, wafer boats, gas injectors, wet-process components
- Solar Photovoltaic — CZ/DS crucibles, diffusion tubes, wafer boats for M10/G12 formats
- Optical & Photonics — windows, lenses, prisms, cuvettes, UV lamp envelopes (JGS1/JGS2)
- Fiber Optic — MCVD/VAD substrate tubes, preform rods, jacketing tubes
- Laboratory & Research — beakers, crucibles, cuvettes, reaction vessels, custom labware
- High-Temperature Industrial — furnace tubes, observation windows, heating supports
Why Choose FGQuartz
- Specialized manufacturer of high-purity fused silica since 2005
- Complete product range under one roof — tubes, rods, plates, boats, crucibles and custom parts
- Strict quality control and material data aligned with our official Specifications page
- Fast response: quotations normally within 24 business hours
- Prototype to volume production with low minimum order quantities
- Global export experience serving customers in Americas, Europe and Asia-Pacific
JGS1 (deep-UV), JGS2 (UV–visible) and JGS3 (infrared), with optional AR coating.
Yes. Every product line is available in custom dimensions and geometries, machined to your drawing.
Quartz tubes, rods, plates and windows, crucibles, semiconductor wafer boats, and custom fabricated components.
Request a Quotation
Send us your specifications, drawings or application requirements. We will provide a detailed quotation — normally within 24 business hours.
Email: [email protected]
Business Hours: Mon – Sat 9am to 6pm