Direct Donghai precision-machined fused quartz, synthetic silica substrates, and high-temp glass tubes engineered for Northern Thailand’s advanced electronics, university laboratories, and renewable solar ecosystems.
Direct OEM manufacturing in Donghai, China, certified to ISO standards and shipped with precision shockproof packaging to industrial hubs across Chiang Mai and Lamphun.
Strategic high-purity glass supply engineered for Northern Science Park, Lumphun industrial clusters, and academic research centers.
Chiang Mai acts as the technological hub adjacent to the Northern Region Industrial Estate (NRIE) in Lamphun. We export precision-machined fused quartz wafer boats, chemical diffusion discs, and high-purity glass carrier plates that resist severe acidic and thermal stripping environments during microchip packaging, photolithography, and wafer testing operations.
Renowned institutions including Chiang Mai University (CMU), the Science and Technology Research Institute (STRI), and regional nanotech incubators utilize our optical-grade JGS1/JGS2 fused quartz plates, spectroscopic cuvettes, and double-side polished test sample sheets for laser excitation studies, photocatalytic degradation testing, and XRD crystallography sample holding.
Northern Thailand’s prominent agricultural processing facilities, municipal sanitization units, and botanical extraction plants demand transparent, ozone-free quartz sleeves and heavy-duty reaction containers. Our quartz sleeves maintain exceptional UV-C transmittance at 254 nm, delivering long-term resistance against devitrification, scaling, and mechanical water hammer pressures.
Critical metallurgical, thermal, and optical parameters governing precision manufacturing for export.
| Characteristic | JGS1 (Synthetic Fused Silica) | JGS2 (Fused Quartz / UV-VIS) | JGS3 (Infrared Fused Silica) |
|---|---|---|---|
| Spectral Transmission | 185 nm – 2500 nm (Deep UV Transmittance) | 220 nm – 2500 nm (UV to Near-IR) | 260 nm – 3500 nm (Infrared Enhanced) |
| Purity (SiO2 Content) | ≥ 99.999% (Ultra-trace impurities) | ≥ 99.99% (Standard Industrial Optical) | ≥ 99.98% (Low Hydroxyl - [OH] < 5 ppm) |
| Continuous Working Temp | 1100 °C | 1100 °C | 1150 °C |
| Maximum Peak Temp | 1300 °C | 1300 °C | 1350 °C |
| Thermal Expansion (CTE) | 5.5 × 10⁻⁷ / °C (20°C - 320°C) | 5.5 × 10⁻⁷ / °C | 5.4 × 10⁻⁷ / °C |
| Surface Flatness & Polish | λ/4 to λ/10, 40/20 or 20/10 Scratch-Dig | λ/2 to 1λ, 60/40 Scratch-Dig | Commercial polish or fine ground |
| Primary Target Application | Excimer laser optics, semiconductor lithography | Observation viewports, furnace windows | IR emitters, vacuum pyrometry viewports |
Analysis of changing buyer dynamics, technical compliance requirements, and China-to-Thailand supply chain integration.
Purchasing managers across Chiang Mai are progressively shifting away from third-party regional traders in Bangkok. By establishing direct factory relationships with primary manufacturers in Donghai, China, enterprise procurement teams reduce component unit costs by 28% to 45% while obtaining custom-fabricated quartz plates and tubes cut exactly to mechanical CAD blueprints.
Chiang Mai’s proactive integration of green-energy startups, solar cell research initiatives, and biomass energy developments demands higher-temperature, chemical-resistant quartz ware. The regional migration toward solar cell manufacturing has spurred robust demand for wide-diameter quartz furnace tubes and precision-slotted carrier cassettes engineered to withstand heavy gas oxidation.
Leveraging the Regional Comprehensive Economic Partnership (RCEP), Chinese quartz glass exports enter Thailand under preferential zero-tariff or minimal import duties. Coupled with direct cargo flights into Chiang Mai International Airport (CNX) or cross-border truck logistics via Yunnan-Laos-Thailand express corridors, lead times for custom-machined components have decreased from months to mere days.
Direct Donghai manufacturing depth, verified production credentials, and unmatched engineering precision.
Unlike standard hot-working facilities, our Donghai plant features dedicated CNC laser drilling, precision micro-grooving, circular disc chamfering, and fire-polishing capabilities. We achieve dimensional tolerances as tight as ±0.05 mm on custom plates, preventing micro-fractures, chipping, and mechanical stress concentrations during high-pressure operating cycles.
Operating with a verified 100% inquiry response rate, our engineering team provides comprehensive manufacturability reviews and technical pricing within two hours. Backed by an annual export turnover of US$2.5M to US$5M and a proven 43% buyer repeat-order rate, we deliver consistent material lot uniformity and zero defects.
Quartz components require specialized transport packaging. Every batch dispatched to Chiang Mai is protected using multi-layer high-density custom EVA shock-absorbing foam, vacuum seal wrap, moisture barriers, and reinforced fumigated export-grade plywood crates, guaranteeing absolute zero breakages across international transit.
Clear, direct answers regarding custom specs, logistics routing to Chiang Mai, import tariffs, and material verification.
Yes. Fabricating to exact customer drawings is our core operation. We accept PDF, DWG, DXF, and STEP files. Our mechanical engineers verify tolerances, corner radii, beveling specifications, and hole locations for manufacturability before production begins.
We employ specialized export crating that features internal suspension with custom-molded high-density EVA foam cushions, vacuum-sealed inner packaging, and outer wooden cases reinforced with steel strapping. Each shipment carries clear 'Fragile - Glass' transit labeling.
Under the China-ASEAN Free Trade Agreement (Form E) and RCEP trade treaties, fused quartz tubes and plates qualify for preferential zero or reduced import tariffs into Thailand. We supply complete commercial documentation, packing lists, and Certificates of Origin.
Choose JGS1 for deep ultraviolet applications down to 185 nm (photolithography, UV optics). Choose JGS2 for standard visible light sight-glasses, furnace viewing ports, and general high-heat isolation (220–2500 nm). Choose JGS3 when low hydroxyl content is required for infrared wave transmission up to 3500 nm.
Submit your CAD blueprints, technical sketches, or customized bill of materials. Our Senior Engineering Team in Donghai reviews tolerances, surface finish, and logistics routing directly to Chiang Mai.
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