Company Overview & Verification Profile | Kavri Quartz Product Co., Ltd.

Direct Manufacturing & Global Supply

Engineered Heating & Precision Quartz Glass

Kavri Quartz Product Co., Ltd. is a dedicated and experienced manufacturer and exporter of infrared heat lamps, halogen lamps, and fused quartz glass products in China. Leveraging more than a decade of specialized industrial manufacturing experience, we deliver tailored heating elements and optical-grade quartz components to clients across North America, Europe, East Asia, and worldwide.

Our core production facility is situated in Donghai County, Lianyungang City, Jiangsu Province — widely recognized as China's premier silicon resource and quartz fabrication hub. By harnessing local high-purity quartz reserves and master hot-working craftsmanship, we produce high-performance, competitively priced emitters engineered for long operational lifespans and superior thermal efficiency.

             Factory Direct Quality Commitment: Every infrared lamp and quartz glass element undergoes strict dimensional verification, filament stability testing, and hermetic seal validation to maintain consistent heating performance across continuous production runs.           

Main Product Solutions

Near Infrared Heat Lamps & Halogen Tubes
Carbon Fiber Medium-Wave Emitters
High-Purity Quartz Glass Tubes & Rods
Optical Fused Silica Quartz Plates
Precision Quartz Laboratory Instruments
Custom Optical & Crystal Quartzware

Verified Operational Profile

Onsite Verified Audit Data

Legal Entity	Kavri Quartz Product Co., Ltd.
Business Type	Manufacturer & Exporter
Onsite Verification	Assessed & Passed
Years on Alibaba	13 Years
Average Response Time	≤ 4 Hours
Inquiry Response Rate	92.65%
Seller Reorder Rate	16.0%
Total Workforce	11 – 50 People
Operational Base	Jiangsu, China
Annual Export Revenue	US$1M – US$2.5M

Donghai Quartz Valley Advantage

Located in the heart of China's quartz capital, we maintain steady access to high-purity natural silica sand, specialized vacuum furnaces, and skilled glass blowers.

Precision OEM & ODM Customization

From single/twin quartz tubes to custom star filaments, gold/ceramic coatings, and tailor-made electrical caps, we fabricate components matching your strict drawings.

Engineered Thermal Longevity

Our infrared lamps feature optimized inert gas blends and pure fused silica envelopes, delivering stable radiation output and reliable service lifespans exceeding 5,000 hours.

Manufacturing Facilities

Inspect our on-site processing facilities, quartz hot-working lines, and quality verification workshops in Lianyungang, Jiangsu.

Kavri Quartz manufacturing plant exterior and facility view

Factory Facility & Grounds

Our dedicated manufacturing base equipped with raw silica processing and clean-room assembly lines in Donghai County.

Infrared lamp filament mounting and evacuation production line

Emitters Assembly Floor

Filament winding, precision halogen gas filling, and automatic exhaust stations for short-wave and carbon IR lamps.

Quartz glass tube cutting, flaming, and optical inspection

Quartz Hot-Working & Shaping

High-temperature oxygen-hydrogen flame torches and CNC cutting lathes for precision quartz tubes, plates, and cuvettes.

Worldwide Export Reach

We supply machine builders, thermal system integrators, and replacement parts distributors across premier industrial markets.

Germany Automotive & Industrial

The Netherlands Horticulture & Curing

Japan Precision Electronics

South Korea Semiconductor & Display

United States PET Packaging & Plastics

Need Tailored Technical Specifications or Samples?

Download our complete manufacturing catalog or connect directly with our engineering department for rapid CAD/drawing evaluation.

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