About Kavri Quartz
Engineering excellence in infrared thermal emitters, halogen heat lamps, and high-purity fused quartzware since 2014.
Precision Manufacturing with Industrial Reliability
Kavri Quartz Product Co., Ltd. is an established, professional manufacturer and exporter specializing in the research, development, and custom fabrication of high-performance infrared heat lamps, halogen emitters, and precision fused quartz glass products.
Situated in Donghai Town, Lianyungang City, Jiangsu Province—globally renowned as China's premier silica and quartz industrial center—our enterprise integrates direct access to raw quartz reserves with seasoned optical craftsmanship. For over a decade, we have provided tailored thermal radiation elements and structural quartzware to global machinery manufacturers, automation integrators, and laboratory distributors.
Every infrared emitter and fused silica part manufactured at Kavri Quartz undergoes rigorous process management, ensuring accurate optical transmission, precise filament geometry, excellent thermal shock resistance, and an extended operational lifespan in demanding environments.
Enterprise Specifications
Operational data and verified supplier metrics demonstrating transparency, compliance, and industrial production capacity.
| Company Legal Entity | Kavri Quartz Product Co., Ltd. |
|---|---|
| Operational Status | Manufacturer & International Trading Company (Onsite Audited) |
| Registered Facility Location | Donghai Town, Lianyungang City, Jiangsu Province, China |
| Total Workforce | 11 – 50 Specialized Technicians & Engineering Staff |
| Dedicated Production Lines | 3 Fully Equipped Lines (Halogen / Carbon Fiber IR Lamps / Quartz Processing) |
| Annual Commercial Volume | Below US$1 Million – US$2.5 Million |
| Average Inquiry Response | ≤ 4 Hours (92.65% Verified Response Ratio) |
| International Export Proportion | 81% – 90% of Total Factory Production Volume |
| Primary Delivery Terms | FOB, CFR, CIF, EXW, Express Air Cargo, DDP Available |
| Commercial Email Contact | [email protected] |
Core Manufacturing Scope
Engineered for industrial thermal processing, surface curing, and laboratory-grade purity.
Near-Infrared & Halogen Lamps
Tungsten filament lamps featuring single or twin-tube quartz envelopes, optimized for high-speed PET preform blowing, automotive paint curing booths, and paper/textile drying tunnels.
Medium-Wave Carbon Emitters
High-efficiency carbon fiber ribbon heaters providing instant thermal response (1-2s) matching the absorption spectrum of water, polymers, and synthetic resin coatings.
Quartz Glass Tubes & Profiles
Clear, ruby, frosted, and milky fused quartz tubing produced with strict wall thickness and outer diameter tolerances, designed for high-temperature furnace tubes and heater sleeves.
Quartz Plates & Optical Discs
Precision-ground and optically polished silica windows offering ultra-high UV-to-IR transmittance, minimal bubble density, and continuous service temperatures up to 1100°C.
Laboratory Quartz Instruments
Custom quartz test tubes, flow cells for biochemistry analyzers, fused silica crucibles, reaction vessels, and sample boats for analytical chemistry and semiconductor test benches.
Reflective Coating Technology
Directional gold reflective layers (reflecting >95% IR forward) and high-temperature white ceramic coatings applied directly to emitter quartz envelopes to maximize thermal efficiency.
Regional Cluster Advantage: Donghai, Lianyungang
Located in Donghai County within Lianyungang City, Kavri Quartz Product Co., Ltd. is situated at the epicenter of China's silica raw material reserves. Donghai accounts for more than half of the national silica mining and refined crystal manufacturing supply chain.
This strategic location provides our production lines with direct access to high-purity natural silica sand (SiO2 purity ≥ 99.99%), reducing raw material transit overhead and ensuring consistent chemical stability across every melt. Combined with a generational workforce skilled in glass-blowing, precision flame annealing, and quartz CNC grinding, we deliver export-grade quartz products at highly competitive price points.
High Purity Silica
Direct supply of refined SiO2 with low iron and heavy metal traces, preventing devitrification and premature discoloration under extreme thermal load.
Cost Competitiveness
Localized supply chain efficiencies enable us to pass direct savings to global OEM buyers without compromising material grade or packaging integrity.
Rapid Prototyping
Quick turnarounds on custom outer diameters, wall thicknesses, heated lengths, and end caps due to immediately available raw stock.
Quality Inspection Standards
Following strict E-E-A-T manufacturing benchmarks to assure repeatable performance and machine fit.
Electrical & Wattage Benchmarking
Every infrared emitter is verified under nominal voltage for exact resistance, rated wattage tolerance (±5%), and instantaneous ignition performance.
Thermal Cycling & Shock Tests
Quartz components are tested under accelerated temperature fluctuations up to 1000°C without crack formation, delamination, or structural warping.
Hermetic Seal Verification
Pinch-seal integrity and molybdenum foil vacuum seals are examined to prevent inert gas leakage, ensuring a rated lamp life between 5,000 and 8,000 hours.
Cushioned Export Packaging
Fragile quartzware is packed using form-fitting pearl cotton (EPE), individual shockproof tubes, and reinforced export cartons with optional plywood crating.
Exporting Industrial Heating Solutions Worldwide
Kavri Quartz Product Co., Ltd. serves an extensive international client base across mechanical engineering, packaging, automotive refinishing, printing, and analytical sectors.
Our long-term buyers appreciate our responsive engineering communication, exact compatibility matching with major European and American machinery brands, and consistent batch quality.
Key Export Destinations
Supported by international door-to-door courier services (DHL, FedEx, UPS, TNT), consolidated air freight, and sea container shipments from Qingdao, Shanghai, and Lianyungang ports.
Looking for a Reliable Infrared Lamp & Quartz Component Manufacturer?
Whether you require standard replacement heating elements or custom quartz instrumentation according to technical drawings, Kavri Quartz provides prompt technical assessment and transparent factory-direct pricing.