Kavri Quartz Product Co., Ltd. is a specialized, technically grounded manufacturer and exporter of infrared heat lamps, halogen emitters, and precision fused quartz glass products in China. Strategically situated in Donghai, Lianyungang City, Jiangsu Province — celebrated globally as China's premier quartz and silicon processing center — we leverage direct geological resources and seasoned thermal glassmaking craftsmanship to deliver superior thermal solutions worldwide.
With verified on-site operations and over a decade of OEM/ODM engineering expertise, we develop products distinguished by thermal shock resistance, stable spectral output, and extended service life. Our product portfolio serves critical heating, curing, semiconductor, and laboratory instrumentation applications across international markets.
We pride ourselves on responsive engineering, robust quality verification, and direct factory pricing, serving machine builders and distributors in Germany, the Netherlands, Japan, Korea, the USA, and more than 40 other nations.
Onsite Verified Manufacturer Profile
Comprehensive engineering control from pure silica processing to final emitter assembly and optical testing.
Engineered with premium tungsten or carbon fiber elements inside heavy-wall quartz envelopes, customizable with selective reflective coatings.
Machining, laser-cutting, high-precision grinding, optical polishing, and flame-working of high-purity SiO2 silica components.
Tailored manufacturing matching exact mechanical drawings, voltage configurations, mounting caps, and lead cable specifications.
Manufactured under rigorous batch-inspection protocols for high-precision industrial deployment.
Near and short-wave tungsten emitters delivering instant thermal response (≤1s) for PET stretch blowing, print drying, and powder coating curing.
Medium-wave emitters optimized for water-based paint drying, plastics thermoforming, automotive interiors, and comfort heating panels.
High-efficiency ultraviolet mercury and gallium curing lamps for flexographic printing, industrial varnishing, and structural bonding lines.
Clear, ruby, and milky fused quartz tubing with tight diameter tolerances (OD 3mm to 300mm) for heater envelopes, furnaces, and UV sleeves.
Precision ground, double-sided optical polished quartz glass viewports, sight windows, and high-temperature thermal barrier plates.
Solid clear fused silica rods and capillary tubes for fiber optics processing, thermocouple guides, and laboratory heating apparatus.
Custom quartz flow cells (32 µL biochemistry analyzers), crucibles, boats, test tubes, and distillation apparatus with exceptional chemical inertia.
Flanged vessels, threaded quartz components, spiral heating tubes, and specialty crystal glassware custom-machined to client drawings.
Transparent look into our dedicated production floors, assembly workshops, and quality testing lines in Jiangsu, China.
Certified operational facilities situated in the Donghai quartz industrial corridor with comprehensive materials staging.
Dedicated workstations for filament coiling, vacuum sealing, reflector coating application, and cap termination assembly.
Specialized oxy-hydrogen glass lathes and annealing ovens designed for high-precision fused quartz manufacturing.
We understand the demanding criteria of international procurement managers: dimensional consistency, electrical tolerance repeatability, and fragile-cargo transit survival.
Send us your dimensional drawings, electrical parameters (voltage, wattage, lead terminations), or photos of existing machine emitters. Our engineering team provides custom quotations and specifications within 4 hours.