Verified Custom Quartz Manufacturer
Lianyungang Vulra Quartz Products Co., Ltd. is an authenticated custom manufacturer specializing in the research, precision processing, and export supply of high-purity fused silica and quartz glassware. Situated at No. 9, Dingxin Road in the Jiangsu Donghai Economic Development Zone, our facility is anchored directly at the core of China's world-renowned quartz raw material center.
With verified on-site operations independently assessed by TÜV Rheinland, our integrated factory delivers turnkey hot-flame fabrication, CNC cold cutting, surface lapping, precision optical polishing, and clean annealing processes under stringent quality control regimes.
The company premises, legal status, and manufacturing capabilities have been audited and certified by internationally recognized inspection agencies including TÜV Rheinland. Operations comply with rigorous industrial and European Union export standards.
Core Competencies & Production Lines
Verified Enterprise Profile
Key administrative, operational, and location data validated through on-site industrial inspection:
| Company Legal Name | Lianyungang Vulra Quartz Products Co., Ltd. |
|---|---|
| Business Classification | Verified Manufacturer & Exporter |
| Operational Address | No. 9, Dingxin Road, Jiangsu Donghai Economic Development Zone, Donghai County, Lianyungang, Jiangsu, China |
| Verification Agency | Third-Party Assessment (TÜV Rheinland / On-site Audit) |
| Industry Experience | 6+ Years of Quartz Glass Thermal & Mechanical Fabrication |
| Core Product Lines | Quartz Tubes, Quartz Rods, Quartz Plates, Furnace Boats, Crucibles, Lab Quartzware |
| International Compliance | CE Certified, RoHS Compliant, REACH Compatible Materials |
| EU Market Commitment | All export products certify and conform to applicable European Union statutory standards |
Manufacturing Facilities & Working Lines
Unlike standard trading intermediaries, our Donghai production plant houses end-to-end hot glassblowing lines, computer-controlled cold grinding, dimensional metrology benches, and specialized stress-relieving annealing furnaces:
- Precision Glassblowing Lathes: Capable of flanging, necking, tapering, and bottom sealing quartz tubes up to 800 mm in outer diameter.
- Optical Surface Polishing: Specialized double-sided polishing equipment yielding clear inspection windows with ultra-low optical distortion and smooth surface finishes.
- Thermal Stress Annealing: High-temperature program-controlled kilns that eliminate internal strain generated during welding, ensuring crack-free service at operating temperatures up to 1100°C.
- High Purity Cleaning Regimes: Ultrasonic deionized water and acid-wash baths to clear trace surface particles prior to multi-layer protective packaging.
Request Product Catalog & Technical Datasheets
Connect with our engineering desk for purity reports, dimensional tolerances, and quotations.