Precision Quartz Engineering from China's Silica Heart
Lovri Quartz Products Co., Ltd. is located in Tuofeng Industrial Park, Lianyungang, Jiangsu Province — the core cluster of high-purity natural silica reserves in China. With direct access to raw quartz mineral resources and decades of cumulative thermal processing know-how, we serve as an integrated manufacturer for global high-tech industries.
Unlike standard traders, our facility operates an end-to-end production ecosystem spanning 14,271 square meters. We convert raw mineral lumps through pulverizing, high-concentration acid pickling, multi-axis tube drawing, thermal annealing, precision glass lathe end-sealing, high-vacuum treatment, and 5-axis CNC machining under one roof.
Our solutions serve top-tier semiconductor fabs, photovoltaic cell manufacturers, analytical optical instrument makers, laser system integrators, and industrial water purification plants worldwide.
Verified Manufacturing & Technical Matrix
Independent third-party audits verify our operational scale, precision equipment, and quality management protocols.
Customization & OEM
Verified on-siteProduction Scale
SGS AuditedQA / QC Standards
Verified SystemInternational Third-Party Inspection
Lovri Quartz Products Co., Ltd. has undergone comprehensive on-site factory qualification, validating human resources, operational footprint, production equipment, and export readiness.
SGS Assessed Supplier In-House Manufacturing & Verification Steps
Every phase of fused quartz production is executed in our workshop to maintain strict material purity, structural density, and optical clarity.
Raw Materials Cutting
High-purity natural silica rocks are sorted, inspected, and accurately sized for downstream processing.
Raw Materials Pulverizing
Crushing quartz rocks into controlled grain sizes while avoiding metallic tooling contamination.
Rescreening & Grading
Multi-deck precision vibratory screening ensures uniform particle size distribution for melting.
Acid Pickling
High-concentration multi-acid treatment leaches trace iron, aluminum, and alkali metals to ensure 99.99% SiO₂.
Quartz Tube Drawing
Thermal continuous drawing furnaces produce high-precision clear and opaque tubes and rods.
Thermal Annealing
Strict soaking at 1215 °C followed by gradual cooling relieves internal thermal stress to eliminate cracking risks.
Precision End Sealing
Oxy-hydrogen flame processing seals round, flat, or test-tube bottoms to airtight standards.
Welding & Joint Fusion
High-temperature seamless glass fusion of quartz flanges, joint branches, and multi-port apparatus.
Vacuum Processing
Exhaust pumping and high-vacuum baking for specialized discharge lamps and laser apparatus.
CNC Machining
Diamond tooling enables CNC contouring, hole drilling, wafer slotting, and surface milling.
Polarization & Metrology QC
Strict polarization stress tests, micrometer tolerance measurements, and optical flaw sorting.
Cleanroom Export Packaging
Multi-layer shock-absorbing pearl wool cushioning and reinforced export crates prevent shipping damage.
Key Industrial Production Machinery
Our manufacturing facility is equipped with dedicated industrial-grade quartz processing equipment.
Partner Directly with a Verified Fused Quartz Factory
Whether you require standard stock fused silica tubes or complex custom CNC-machined quartz parts based on engineering drawings, Lovri Quartz Products Co., Ltd. delivers quality and certified compliance.