About FGQuartz | High-Purity Fused Silica Manufacturer Since 2005
Founded in 2005 in Lianyungang, China, FGQuartz is a vertically integrated manufacturer of ultra-high-purity quartz glass and fused silica components. We specialize exclusively in the melting, thermal forming, precision CNC machining, and custom fabrication of advanced silica materials tailored for mission-critical applications in the semiconductor, solar photovoltaic, optical, fiber-optic, and scientific laboratory sectors.
From supplying standard quartz tubes, quartz rods, and quartz plates to engineering highly complex, custom-fabricated assemblies, we empower global technology leaders with uncompromising material quality and highly flexible manufacturing capabilities.
Company Overview
Operating from a state-of-the-art 15,000 m² manufacturing facility, FGQuartz integrates advanced fusion furnaces, multi-axis CNC machining centers, and comprehensive metrology laboratories under one roof. Our entire production infrastructure is strictly governed by an ISO 9001-certified quality management system to guarantee batch-to-batch consistency.
We proudly supply both standardized catalogue materials and fully custom-engineered components to OEM and R&D customers across more than 40 countries. Our strategic focus remains on delivering high-purity fused silica solutions that consistently exceed the stringent thermal, chemical, and dimensional requirements of advanced manufacturing environments.
Whether your process requires precision quartz wafer boats, robust quartz crucibles, or highly intricate custom quartz assemblies, our engineering team is dedicated to supporting your success from initial prototype development through to high-volume production.
Manufacturing Capabilities
FGQuartz operates a comprehensive in-house fabrication ecosystem. Beyond supplying premium raw materials, our core strength lies in our ability to engineer, CNC machine, thermally form, and high-vacuum weld complex quartz structures directly from customer CAD drawings.
Melting & Forming
In-house melting and drawing of high-purity fused silica tubes, rods, and ingots, achieving ultra-low trace metal impurities and controlled OH content for demanding applications.
CNC Diamond Machining
High-precision multi-axis CNC milling, drilling, and threading. Engineered for complex geometries, tight-tolerance wafer boats, gas injectors, and specialized fixtures.
Oxy-Hydrogen Flame Forming
Master-level thermal processing for integrating heavy-duty flanges, creating multi-port manifolds, precision tube bending, and vacuum-tight seamless welding.
Polishing & Surface Treatment
Advanced mechanical and fire polishing to achieve ultra-smooth, low-particulate surfaces for semiconductor wet benches and high-transmission optical finishes.
Annealing & Stress Relief
Strictly controlled thermal annealing profiles to eliminate residual mechanical stress, ensuring long-term structural and dimensional stability at extreme temperatures.
Inspection & Metrology
Rigorous dimensional metrology, optical defect inspection, and full material traceability, providing comprehensive CoC (Certificate of Compliance) documentation.
Key Strengths
20+ Years Focused Experience
Deep domain expertise in fused silica processing since 2005, intimately understanding the stringent purity and thermal demands of cutting-edge technology industries.
ISO 9001 Quality System
Standardized production workflows and rigorous quality checkpoints ensuring highly reliable, batch-to-batch consistency for critical OEM supply chains.
Engineering Collaboration
Direct engineer-to-engineer support for material selection, Design for Manufacturability (DFM), CAD drawing optimization, and reverse engineering from samples.
Flexible Order Quantities
Agile manufacturing capable of scaling from single-piece R&D prototyping to high-volume blanket orders, all with rapid and reliable turnaround times.
Complete Product Scope
A true one-stop fabrication partner: from standard raw tubes and rods to complex welded crucibles, boats, and multi-chamber tank assemblies.
Global Customer Base
Trusted by over 500 technology leaders and research institutions across 40+ countries, supported by highly experienced export and logistics teams.
Industries We Serve
FGQuartz engineers high-purity quartz components that form the backbone of multiple high-technology sectors. Below are the primary industries we support:
Semiconductor
Process tubes, precision wafer boats, gas injectors, furnace liners, and wet-bench components for front-end wafer processing.
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Solar Photovoltaic
Heavy-wall crucibles for crystal growth, diffusion furnace tubes, and advanced wafer handling carriers for solar cell lines.
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Optical & Laser Systems
Polished windows, plates, lens blanks, and precision optical components for photonic, spectroscopy, and high-power laser applications.
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Fiber Optic
Ultra-pure substrate tubes, starting rods, and jacketing tubes engineered for MCVD, VAD, and OVD preform manufacturing.
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Laboratory & Analytical
Chemical-resistant labware, reaction vessels, cuvettes, and bespoke apparatus for advanced research and analytical chemistry.
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High-Temperature Industrial
Thermal-shock resistant furnace tubes, heating element supports, viewports, and thermal liners for extreme industrial heating.
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Quality Control
Quality assurance is the absolute foundation of our manufacturing philosophy. From rigorous raw material qualification through to final dimensional metrology, we maintain documented controls to ensure uncompromising product performance. Comprehensive inspection reports, dimensional verification, and material certificates (CoC) can be provided tailored to your specific compliance requirements.
Our ultimate objective is delivering reliable, precise quality that maximizes your process yield and guarantees long-term equipment performance across semiconductor, solar, optical, fiber-optic, and critical laboratory environments.
We supply more than 500 clients across the Americas, Europe and Asia-Pacific.
Yes. Our processes follow ISO 9001 quality management, with documented inspection and full traceability from raw material to finished part.
Our factory is in Lianyungang, Jiangsu province, China, with melting, forming and machining capabilities on one site.
FGQuartz was founded in 2005 and has over two decades of quartz glass manufacturing experience.
Partner with FGQuartz
Whether you require standardized high-purity quartz components or highly complex custom fused silica assemblies, our engineering team is ready to deliver. Contact us today to discuss material selection, CAD drawings, rapid prototyping, or securing a reliable long-term supply chain.