Company Profile & Manufacturing Capabilities
Lovri Quartz Products Co., Ltd. — SGS Onsite-Verified High-Purity Fused Quartz Glass Manufacturer in Lianyungang, China
Factory Strength & Verified Performance
Operating in China's prime silica quartz hub, Lovri Quartz Products Co., Ltd. brings together integrated raw material refining, precision tube drawing, and 5-axis CNC machining.
Supplier Track Record
SGS Assessed
Customization
- Drawing-based CustomVerified
- Sample ProcessingVerified
- Custom GeometryFlange/Bore/Slots
Trade & Export
- Export Experience5+ Years
- Registered Capital$140,000 USD
- Main SeaportShanghai Port
R&D Engineering
- Dedicated Engineers2 Senior Staff
- File FormatsCAD / DWG / STEP
- Full CustomizationVerified
Production Scale
- Floor Space14,271 m²
- Line Operators16 Certified Staff
- SiO&sub2; Purity≥ 99.99%
Quality Assurance
- QA/QC Inspectors2 Specialized Staff
- Stress TestingPolarization Tester
- Inspection RecordsVerified
Export Services
- Safe PackagingReinforced Wood Crate
- Export ComplianceCE & RoHS Certified
- Door-to-Door LogisticsAir / Sea Freight
Complete Fused Quartz Production Route
By managing everything from initial rock crushing and acid washing to automated glass lathe sealing and optical inspection, Lovri Quartz guarantees consistency and competitive pricing.
Raw Materials Cutting
Visual selection and primary sorting of high-purity natural silica rocks.
Crushing & Pulverizing
Fine pulverization turning sorted quartz blocks into measured grain silica sand.
Grain Rescreening
Multiple vibratory screening passes ensure uniform grain size distribution.
High-Purity Pickling
Acid bath decontaminates iron and heavy metals to reach 99.99% SiO&sub2; purity.
Continuous Tube Drawing
Electric fusion furnaces draw precise round, square, or capillary quartz tubes.
Thermal Annealing
Thermal cycle heating and cooling releases internal stress to prevent thermal cracking.
Precision End Sealing
High-temp oxy-hydrogen flame creates flat, domed, or round bottom closures.
Glass Lathe Sealing
Seamless fusion welding of ground quartz joints, custom flanges, and side branches.
Vacuum Processing
High-vacuum degas evacuation for dewar tubes, ozone vessels, and jacketed apparatus.
CNC Precision Machining
Diamond-tooled slotting, drilling, milling, surface grinding, and laser polishing.
Comprehensive Inspection
Micrometer dimensioning, visual bubble grade sorting, and polarization stress checks.
Export Packaging
Shock-absorbing pearl cotton wrap and custom wooden crating for safe international transit.
Factory Machinery & Laboratory Fleet
Our dedicated machinery floor houses specialised automated equipment ensuring strict dimensional repeatability down to ±0.05 mm.
Heavy-Duty Pulverizer
Processes raw silica boulders into calibrated grain sizes with zero contamination.
Vibratory Rescreen Machine
Ensures precision grading of quartz granules for optimal melting fluidity.
Chemical Pickling System
Ultra-pure acid wash extraction eliminates metallic oxide trace elements.
Continuous Drawing Towers
Draws transparent and opaque fused quartz tubes from OD 2 mm up to OD 500 mm.
Controlled Annealing Furnace
Eliminates internal thermal stress gradients up to 1250 °C processing soak.
Glass Lathe Sealing Rig
Synchronized multi-axis glass lathe fusing thick-walled tubes, domes, and necks.
Vacuum Exhaust Station
Specialized turbo-molecular pumping station for high vacuum jacketed equipment.
High-Precision CNC Center
Multi-axis wet CNC machining for complex wafer boats, 96-well plates, and flow cells.
Diamond Cutting Saw
Water-cooled diamond blade cutting for chip-free square edges and tight lengths.
Automated End Sealer
High-speed burner lathe creates uniform spherical and flat test tube bottoms.
Polarization Stress Tester
Optical birefringence inspection detects residual mechanical and thermal strain.
Analytical Testing Lab
Equipped for spectral transmission verification, purity checks, and surface quality.
Audited Certifications & Compliance
Lovri Quartz Products Co., Ltd. ensures regulatory assurance for global medical, industrial, and semiconductor supply chains.
CE Certification
Conformité Européenne verification confirming health, safety, and environmental protection compliance across European markets.
Certificate ID: HTT202607592R
RoHS Directive Compliance
Tested free of hazardous substances (lead, mercury, cadmium, hexavalent chromium) in compliance with EU Directive 2011/65/EU.
Report ID: HTT202607592CH