Engineered to withstand extreme thermal gradients and corrosive atmospheric environments across Isan’s high-capacity manufacturing lines. All items are customizable via our OEM/ODM technical team.
Understanding the molecular integrity and spectral transmission bands of JGS1, JGS2, and JGS3 quartz glasses used in critical industrial machinery across Nakhon Ratchasima.
| Physical / Optical Property | Synthetic Fused Silica (JGS1) | Fused Quartz (JGS2 Optical Grade) | Standard Borosilicate (Pyrex Type) | Operational Impact on Korat Facilities |
|---|---|---|---|---|
| Working Temperature Range | 1100°C continuous / 1350°C peak | 1050°C continuous / 1250°C peak | 450°C continuous / 500°C peak | Zero Thermal Rupture in ceramic & auto tunnel kilns. |
| Thermal Expansion Coeff. (α) | 5.5 × 10-7 / K (0–300°C) | 5.5 × 10-7 / K (0–300°C) | 32.5 × 10-7 / K (0–300°C) | Withstands ice-water quenching directly from 1000°C heat. |
| Transmission Spectrum Window | 185 nm – 2500 nm (Deep DUV to NIR) | 220 nm – 2800 nm (UV to NIR) | 350 nm – 2000 nm (Cuts off UV-C/UV-B) | Imperative for automated optical inspection (AOI) & UV curing. |
| SiO2 Purity Level | ≥ 99.999% (Trace OH < 5 ppm) | ≥ 99.99% (OH content < 30 ppm) | Approx. 80% (High B2O3, Na2O content) | Zero outgassing or chemical etching during polymer baking. |
| Refractive Index Nd (20°C) | 1.4585 | 1.4584 | 1.4700 | High focal consistency for high-speed laser sorting optics. |
Industrial processors operating within the Suranaree Industrial Zone and Navanakorn Industrial Estate (Korat) regularly manage challenging manufacturing conditions: high tropical humidity alternating with dry heat, continuous 24/7 operating cycles, and intensive power loads. Traditional borosilicate glass elements degrade, develop cloudiness (devitrification), and fracture under sudden temperature spikes.
Kavri Quartz components are fabricated from chemically unreactive natural crystal and synthetic silicon tetrachloride, melted in hydrogen-oxygen thermal reactors. This ensures complete freedom from internal striae, inclusions, and bubbles. Whether serving as high-flux quartz lenses in sorting arrays or as twin-tube clear quartz envelopes for polymer thermoforming, our components deliver superior refractive stability and radiant efficiency.
From high-speed automated assembly in Chokchai to agri-food dehydration plants along the Mittraphap corridor, explore how our quartz lenses, tubes, and lamps integrate seamlessly into key local workflows.
Nakhon Ratchasima is Thailand’s core cassava, tapioca starch, and sugarcane processing powerhouse. Our gold-coated short-wave IR emitters and optical-grade quartz windows are deployed in moisture analyzers, fluidized bed starch dryers, and grain roasters, slashing energy consumption by 38% compared to steam drying.
As automotive tier-1 and tier-2 parts manufacturing expands near Korat, OEM robotic paint booths rely on our 1000W and 1500W Ruby Quartz and Twin-Tube Short Wave Halogen lamps. They provide instantaneous cross-linking of clear coats without orange peel defects, penetrating directly into substrate metal.
Modern grain, pulse, and mineral processors in Isan use high-speed optical sorters equipped with Kavri JGS1 fused silica planar and biconvex lenses. These lenses maintain pristine optical clarity under dust-laden environments, ensuring high-frequency CCD and NIR cameras identify sub-millimeter defects with zero chromatic shift.
Beverage packaging centers supplying regional drinking water and functional drinks utilize our directional gold-plated and ceramic half-white quartz heating tubes. Designed for Sidel, Krones, and Sipa blow molding machines, these lamps guarantee uniform wall-thickness heating while eliminating preform crystallization.
Precision hard disk drive (HDD) component manufacturers and cleanroom assembly operations in Navanakorn Industrial Estate Korat utilize our high-purity quartz discs, wafer boats, and UV curing quartz envelopes, manufactured with strict low-alkali tolerance to avoid ionic contamination.
Large-scale poultry operations spanning Pak Chong and Chokchai districts require uniform radiant warmth during monsoon and winter drop temperatures. Our Ruby Quartz infrared emitters suppress visible light glare to maintain livestock sleep cycles while converting 92% of electrical input into biological-penetrating heat.
Combining world-class raw silica mineral access in Lianyungang with rigorous German-standard optical testing and end-to-end export logistics directly into Southeast Asian factories.
Headquartered in Lianyungang, Jiangsu—adjacent to Donghai, China’s world-renowned epicenter of high-purity crystalline quartz mining—Kavri Quartz enjoys direct raw materials pricing and continuous quartz glass innovation. Since our establishment in 2014, we have maintained a rigorous export portfolio where 81% to 90% of our products serve overseas clients across Europe, North America, Japan, and ASEAN.
Each quartz lens, tube, and custom infrared lamp undergoes optical interferometry testing, spectroradiometer flux validation, and thermal shock verification (heated to 1100°C and plunged into 20°C water without micro-fracturing). Backed by three fully automated production lines and verified by leading inspection authorities, we ensure repeatable tolerances (±0.05mm) across every procurement order.
Send your CAD blueprints, sample components, or machine nameplate ratings; our engineers verify dimensional tolerance and electrical requirements.
We model spectral transmission, optical focal distance, or radiant flux distribution to match your process temperature targets precisely.
Custom quartz glass lenses, custom-bent tubes, or tailored-base infrared lamps are fabricated and dispatched via express air freight for on-site fit testing.
Upon sample validation, our three dedicated production lines initiate high-volume processing under continuous vacuum-sealing and annealing protocols.
Items are cushioned with multi-layer shockproof EPE foam, packed in rigid export-grade wooden cases, and shipped under FOB, CIF, or DDP terms directly to Korat.
Real-world engineering, customs clearance, and specification inquiries from plant managers, maintenance chiefs, and purchasing officers in Nakhon Ratchasima.
Whether you require direct replacements for ongoing maintenance or custom-engineered quartz glass optics for new automated machinery serving Nakhon Ratchasima, our optical engineering team is available for real-time consultation.