About FGQuartz
About FGQuartz: High-Purity Quartz Glass Manufacturer Since 2005
FGQuartz is a manufacturer of fused silica (quartz glass, SiO₂ ≥ 99.99%) in Lianyungang, China. We are a factory, not a trading desk: we form, machine and anneal quartz in our own plant, from a standard tube to a one-off apparatus nobody has built before.
Founded in 2005, we run a single 15,000 m² plant under an ISO 9001 quality system and serve more than 500 customers in over 40 countries.
FGQuartz at a Glance: Key Company Facts
The details buyers most often ask before contacting a quartz glass supplier, in one place.
| Item | Detail |
|---|---|
| What we do | Manufacture fused silica (quartz glass) products and custom parts |
| Founded | 2005 |
| Location | Lianyungang, China |
| Facility | 15,000 m² integrated plant |
| Quality system | ISO 9001 |
| Material | Fused silica, SiO₂ ≥ 99.99%, including JGS1 / JGS2 / JGS3 optical grades and opaque fused silica |
| Standard products | Tubes, rods, plates, wafer boats, crucibles, tanks, inline heaters |
| Made to order | From drawings (DXF, STEP, IGES, PDF), sketches, samples or a description of the job. See custom quartz glass |
| Markets | Semiconductor, solar photovoltaic, optics and photonics, fiber optic, laboratory, high-temperature industrial |
| Customers | 500+ customers in 40+ countries |
| Minimum order | None; single prototypes are welcome |
| Quotation and lead time | Quote typically within 24 business hours; 7–14 days for simpler parts, 3–6 weeks for complex assemblies |
| Contact | info@fgquartz.com |
Who We Are and How the Plant Works
FGQuartz has made quartz glass since 2005 and has stayed focused on one family of material: fused silica. Two decades of working with it shows in small things, such as which wall thickness a furnace tube really needs, why flanges are fused on rather than bonded, or when a customer should be steered away from quartz altogether.
The Lianyungang plant covers the whole chain: melting and drawing tube and rod, diamond cutting, drilling, slotting and grinding, oxy-hydrogen flame forming and welding, polishing, annealing, and dimensional inspection against the agreed drawing. Because these steps sit under one roof and one ISO 9001 quality system, a drawing is not handed from workshop to workshop and one team answers for the finished part. Orders leave with export packing and shipping support.
Who Buys from FGQuartz and How We Work with Them
Who buys from us
- Process and equipment engineers: furnace tubes, boats, injectors and fixtures for a specific tool.
- Laboratory and research teams: crucibles, reaction vessels, flow cells and one-off apparatus, often from a single sketch.
- OEMs and system builders: repeat parts to print, in matched sets.
- Procurement teams: clear quotations, stated lead times, one supplier for standard and custom items.
Industries: semiconductor, solar, optics, laboratory, fiber optic, high-temperature. See all applications.
How we work
- We are the manufacturer. Technical questions are answered by the team that will make the part.
- We start from the job, not the catalogue: temperature, chemistry, light, pressure and space come first; shape and grade follow.
- We say no when quartz is wrong, before you pay for a part that will not last.
- Prototype first. No minimum order, so a design can be tested with one piece, then repeated or scaled.
- We answer quickly, typically within 24 business hours, with engineering feedback attached.
When Does FGQuartz Advise Against Quartz Glass?
A good supplier knows where the material stops. Fused silica is excellent for heat up to 1200°C (2192°F) continuous, for clean processes and for hot mineral acids. We advise against it when the process involves:
- hydrofluoric acid (HF)
- hot concentrated phosphoric acid
- hot strong alkalis such as KOH or NaOH
- continuous service well above 1200°C
- heavy mechanical impact, since quartz is hard but brittle
In those cases we will say so and, where we can, point you to a material that suits the job. For numbers, see the technical specifications and the quartz vs borosilicate comparison.
Frequently Asked Questions About FGQuartz
Is FGQuartz a manufacturer or a trading company?
FGQuartz is a manufacturer, not a trading desk. We form, machine, and anneal quartz glass in our own plant in Lianyungang, China, so technical questions are answered by the team that will make the part.
Where is FGQuartz located and how large is the plant?
FGQuartz is in Lianyungang, China. Founded in 2005, we run a single 15,000 m² integrated plant that covers melting and drawing, diamond cutting and machining, flame forming and welding, polishing, annealing, and inspection.
What quality system does FGQuartz use?
The plant runs under an ISO 9001 quality system, with dimensional inspection against the agreed drawing before parts ship with export packing.
Which industries does FGQuartz supply?
Semiconductor, solar photovoltaic, optics and photonics, fiber optic, laboratory, and high-temperature industrial customers: more than 500 customers in over 40 countries.
When does FGQuartz advise against quartz glass?
We advise against fused silica when the process involves hydrofluoric acid (HF), hot concentrated phosphoric acid, hot strong alkalis such as KOH or NaOH, continuous service well above 1200°C (2192°F), or heavy mechanical impact. Where we can, we point you to a material that suits the job.
Can you make a part from a sketch or a sample?
Yes. We work from DXF, STEP, IGES, or PDF drawings, hand sketches, photos, a worn sample, or a plain description of what the part must do. Add temperature, chemicals, and quantity if you know them.
What is the minimum order quantity and how fast is a quote?
There is no minimum order quantity, so single prototypes are welcome. Quotes typically come back within 24 business hours; simpler parts take 7–14 days and complex assemblies 3–6 weeks.
Do you ship internationally?
Yes. We supply customers in more than 40 countries, with export packing and shipping support.
Request a Quote
Tell us 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