SGS Onsite-Verified Fused Quartz Manufacturer [email protected]
SGS-Verified China Source Factory · CA-4 Direct Exporter

Top China Quartz Glass Disc Factories & Exporter in the Tegucigalpa Market

High-purity fused silica discs, JGS1/JGS2 optical windows, and custom-ground high-temperature sight glasses engineered for Tegucigalpa's industrial, municipal water purification, and academic clinical laboratories.

Export Catalog

Recommended Quartz Glass Discs & Components for Tegucigalpa

Precision-machined from synthetic and natural fused silica (99.99% SiO₂). Each component is polarization-stress inspected and packed under ISO Class clean standards for direct break-free sea or air transit into Honduras.

99.99% SiO₂ BAO RAN 515 Transparent High Purity Fused Quartz Threaded Reaction Tube

BAO RAN 515 Transparent High Purity Threaded Reaction Tube Lab Vessel

Side arm reaction tube with high thermal stability up to 1200°C. Engineered for chemical synthesis and academic digestion at UNAH laboratories.

ROHS Certified BAO RAN 419 Ultra Thin Silica Quartz Sheet for Laser

BAO RAN 419 Ultra-Thin 0.1mm–0.5mm Fused Quartz Sheet & Disc for Laser

Micron-calibrated optical flatness and laser damage threshold. Protective optics for CNC fiber laser cutters in Francisco Morazán metal fabrications.

1100°C Continuous Customized Quartz Glass Tubes High Temperature Fused Silica

916 Factory Customized High Temperature Fused Silica Furnace Tube

Heavy-wall fused quartz cylinder for sintering, smelting pyrolysis, and high-vacuum tube furnace insulation with extreme thermal shock resistance.

Corrosion Proof High Quality Polished Threaded Quartz Glass Tube

High Quality Polished Threaded Quartz Glass Flanged Tube & Sight Glass

Precision ground screw-thread end coupling. Acid resistant against high concentrations of HCl, HNO₃, and organic solvents for chemical processing.

JGS1 UV Optical BAO RAN JGS1 High Purity Optical Quartz Window Disc

BAO RAN JGS1 Optical Fused Silica Quartz Window Disc & CNC Jig

Deep ultraviolet transmission down to 185 nm. Bubble-free optical grade window for spectroscopic cuvettes, UV analyzers, and cleanroom viewports.

UV Ozone Resistant High Purity Translucent Polished Quartz Tube for Ozone UV

High Purity Quartz Glass Disc & Tube for Ozone Generator Disinfection

Hydroxyl-controlled fused quartz designed for municipal water chlorination substitutes, corona discharge ozone cells, and effluent UV disinfection.

High Transmittance High Purity Transparent Fused Quartz Sheet Digestion Tube

High Purity Transparent Fused Quartz Disc & Acid Digestion Vessel

Optical grade surface roughness Ra < 0.5 nm with double-sided mechanical polish. Perfect for laboratory sample preparation and autoclave viewports.

Double-Sided Polish BAO RAN 419 Double Sided Polishing Fused Quartz Sheet

BAO RAN 419 Double-Sided Polished Quartz Circular Disc Sight Glass

Beveled protective white edge ground to custom diameter (Ø10mm to Ø500mm). Resistant to high differential pressure and thermal gradient spikes.

99.99%
SiO₂ Chemical Purity
1730°C
Softening Point
5.5×10⁻⁷
Thermal Expansion (CTE /°C)
14,271m²
SGS Assessed Plant
Material Selection Matrix: Fused Quartz Discs ISO 9001:2015 / RoHS
Engineering Property Standard Grade (JGS2 / JGS3) Synthetic UV Grade (JGS1)
Silica Purity (SiO₂) ≥ 99.99% ≥ 99.9999%
Spectral Range Transmission 220 nm – 2500 nm (JGS2) / up to 3500 nm (JGS3) 185 nm – 2500 nm (Deep DUV Optic)
Max Operating Temperature 1100°C (Continuous) / 1300°C (Short-term) 1150°C (Continuous) / 1350°C (Short-term)
Thermal Shock Resistance Drop from 1100°C into 20°C water without fracture Extreme thermal gradient survivability
Hydroxyl (OH⁻) Content < 30 ppm (Dry) to 150 ppm < 5 ppm to ultra-low trace
Mohs Hardness / Density 5.5 – 6.5 Mohs / 2.20 g/cm³ 6.0 Mohs / 2.203 g/cm³
Dielectric Strength (20°C) 25 – 40 kV/mm > 40 kV/mm
Surface Quality Tolerances MIL-PRF-13830B 60/40, Ra < 1.0 nm Laser grade 20/10 Scratch-Dig, Ra < 0.3 nm

JGS1 vs. JGS2 Selection Guide for Engineers

Procurement teams in Tegucigalpa often confront premature sight glass clouding or solarization caused by selecting borosilicate instead of fused quartz. While borosilicate fails at 450°C and attenuates light under 320 nm, JGS1 synthetic fused silica maintains >90% transmission across DUV bands, making it mandatory for UV disinfection photometers and excimer laser housings. JGS2 flame-fused quartz serves as an economical industrial sight glass for high-temperature kilns, autoclaves, and smelting observation ports.

Optical Stress Birefringence Standards

Under high working pressures, residual glass stress results in mechanical shattering. Lovri Quartz employs computerized Polarization Stress Testers on 100% of disc batches post-annealing (1215°C soak). We guarantee internal optical retardation ≤ 10 nm/cm (Grade A precision), eliminating catastrophic failure risks in pressurized Tegucigalpa chemical pipelines.

Localized Engineering

Quartz Glass Disc Applications across Tegucigalpa & Central Honduras

From the mountainous urban basins of Francisco Morazán to industrial corridors along CA-5, fused silica plays an indispensable role in safeguarding infrastructure, refining mining extraction, and powering biomedical diagnostics.

Municipal Water Treatment & Ozone Reactors

Tegucigalpa faces acute municipal water distribution and quality management challenges, managed by SANAA and private concessionaires. Water disinfection plants utilizing medium-pressure UV lamps and corona discharge ozone systems require high-purity fused quartz sleeves and circular disc sight windows. Quartz discs withstand corrosive ozone gas and maintain constant 254 nm germicidal UV transmittance without clouding or solarization over years of operation.

Location: Los Laureles, Concepción & Miraflores Treatment Plants

Biomedical Research & Clinical Diagnostics

At the Universidad Nacional Autónoma de Honduras (UNAH) Faculty of Medical Sciences and regional reference laboratories, precision analytical instruments depend on fused silica discs. JGS1 grade discs serve as spectroscopic cell windows, PCR fluorometer lenses, and high-transmittance covers for enzymatic reaction monitoring where zero background fluorescence and unyielding chemical neutrality are mandatory.

Institutes: UNAH Ciudad Universitaria & Medical Centers

Mining Pyrometry, Kilns & Foundry Sight Glasses

The Department of Francisco Morazán and neighboring Valle/El Paraíso host significant mineral processing, metal casting, and cement plants. Engineers inspect burning chambers, lime kilns, and smelters through our high-pressure circular quartz discs. Rated up to 1300°C intermittent exposure, our discs protect thermal camera sensors and human operators from violent heat surges and slag spatter.

Sector: Industrial Smelting & Non-Metallic Minerals

Industrial Laser Cutting & Optics Maintenance

Metal fabrication workshops, agricultural machinery repair bays, and signage fabricators in Tegucigalpa utilize 1kW–12kW CNC fiber laser cutting tables. Lovri manufactures ultra-flat (λ/4), low-absorption AR-coated fused silica protective cover discs that prevent debris from striking expensive collimating lenses, maintaining clean beam focus and continuous daily productivity.

Hardware: 1064nm Fiber Laser Cutting Heads

Thermal Energy, Biomass & Boiler Systems

Tegucigalpa’s light manufacturing, food processing (dairy, milling, brewing), and commercial thermal facilities utilize high-pressure steam boilers. Transparent quartz disc gauge glasses and flanged sight ports resist steam alkalinity and caustic boil water treatment additives up to 100 bar, providing operators with dependable visual fluid levels where ordinary tempered soda-lime glass rapidly leaches and degrades.

Infrastructure: Steam Boilers & High-Pressure Autoclaves

Solar Photovoltaic & Weather Station Radiometers

With Honduras leading solar energy adoption in Central America, regional monitoring stations require solar pyranometer dome discs and reference solar cell cover windows. Fused quartz exhibits flat spectral transmittance across the whole solar radiation spectrum (UV to NIR), unaffected by humidity, UV darkening, or intense tropical thermal cycling.

Energy: Solar Monitoring Stations & Cleanroom Sensors
Trade & Supply Chain Logistics

Direct China-to-Honduras Supply Chain & Import Protocols

Navigating maritime routes from Lianyungang to Puerto Cortés, customs tariff clearance via Aduanas Honduras, and multimodal transit to Tegucigalpa.

Maritime & Air Logistics Corridor

Lovri operates regular export dispatches from Lianyungang and Shanghai ports directly to Puerto Cortés (HNPTR), Central America's largest and most efficient deep-water port on the Atlantic. Container transit times average 26–34 days via major transpacific carriers (Maersk, CMA CGM, COSCO).

From Puerto Cortés, bonded cargo is transported via secure truck haulage along the modern four-lane CA-5 Logistics Corridor straight into Tegucigalpa bonded warehouses in 4 to 6 hours. For emergency replacement quartz discs, air freight via Palmerola International Airport (XPL / Comayagua) or Toncontín (TGU) provides door-to-door delivery within 5 to 7 business days.

Tariff Classification & Customs (CA-4)

Fused quartz glass products are classified under Central American Harmonized Tariff codes:

  • HS 7002.31.00: Tubes of fused quartz or other fused silica.
  • HS 7006.00.00: Glass of heading 70.03, 70.04 or 70.05, bent, edge-worked, engraved, drilled, enamelled or otherwise worked (Custom Quartz Discs & Sheets).
  • HS 7017.10.00: Laboratory, hygienic or pharmaceutical glassware of fused quartz.

Our export documentation includes commercial invoices, packing lists with net/gross weights, Certificate of Origin (CO), and material analytical test reports (MTC) required by Honduran Customs (SAR / Administración Aduanera de Honduras) for smooth tax assessment and expedited green-channel release.

Zero-Breakage Export Packaging

Precision quartz discs are vulnerable to micro-scratching, humidity shock, and vibration during multimodal transshipment. Lovri applies a multi-layered protective protocol:

  • 1. Protective antistatic PE optical film or lens tissue wrapping per individual disc.
  • 2. CNC custom-molded high-density Pearl Cotton (EPE) shock absorption cutouts.
  • 3. Vacuum sealed moisture-barrier bags with silica gel desiccant packs.
  • 4. Heavy-duty reinforced fumigated plywood cases with external "Fragile / Tip-N-Tell" shock impact indicators.
Factory Capabilities

Why Global Importers Source from Lovri Quartz

Situated at the heart of China's quartz capital in Lianyungang, Jiangsu, we integrate raw silica processing, high-temperature fusing, precision CNC shaping, and independent quality verification within a single 14,271 m² facility.

ADVANTAGE 01

Full-Chain Source Control

Unlike trading companies, we operate raw material cutting, crushing, pulverizing, and hot hydrofluoric acid pickling in-house. We achieve pure SiO₂ ≥ 99.99% at the chemical source, eliminating contamination before thermal synthesis.

ADVANTAGE 02

5-Axis CNC Precision Machining

Equipped with ultra-high-speed diamond grinding tools, ultrasonic drilling, waterjet circular cutting, and double-sided planetary lapping. We machine quartz discs down to ±0.02 mm dimensional tolerances and optical bevels.

ADVANTAGE 03

SGS Verified & Stress Tested

Our factory is audited and onsite-assessed by SGS Group. Every quartz batch undergoes optical spectrometer transmission scanning, interferometric flatness testing, and polarization stress polarimeter verification.

ADVANTAGE 04

Flexible Engineering & Low MOQ

We support Tegucigalpa R&D trials, educational universities, and maintenance prototypes with an agile Minimum Order Quantity starting at just 1 to 5 pieces, scaling effortlessly to industrial container volumes.

Procurement FAQ

Frequently Asked Questions by Honduran Importers

Everything technical managers and procurement directors in Tegucigalpa need to know regarding quartz disc grade selection, logistics, pressure limits, and custom fabrication.

1. How do I determine whether my application in Tegucigalpa requires JGS1, JGS2, or JGS3 quartz?
Selection depends on your required working spectral wavelength and thermal profile. JGS1 (Synthetic Fused Silica) is essential if you operate in the deep ultraviolet band (185 nm – 2500 nm), such as UV disinfection analysis, high-end spectroscopy, or UV laser optics; it exhibits no bubble inclusions and negligible fluorescence. JGS2 (Standard Fused Quartz) is the industry workhorse for optical transmission from 220 nm to 2500 nm, ideal for standard sight windows, furnace observation ports, and ozone generators. JGS3 (Infrared Quartz) provides superior transmission in the infrared range (260 nm to 3500 nm) with absent OH absorption bands at 2730 nm, perfect for pyrometry viewports and IR drying radiators.
2. Can your quartz discs withstand sudden thermal shocks in industrial kilns?
Yes. Due to an exceptionally low coefficient of thermal expansion (α ≈ 5.5 × 10⁻⁷ /°C), our fused quartz discs possess unmatched thermal shock resistance compared to borosilicate or tempered glass. You can safely heat our quartz disc to 1100°C and immediately quench it in ice-cold 20°C water without inducing fractures or micro-crazing. This makes them ideal for industrial boilers and metallurgy kilns in Francisco Morazán subject to sudden ambient temperature swings and rain spatter.
3. What is the typical lead time and delivery route from your China plant to Tegucigalpa?
Standard production and precision optical grinding require 7 to 15 days depending on tolerances and CNC edging requirements. For maritime shipping, vessels depart from Lianyungang or Qingdao to Puerto Cortés (HNPTR), taking roughly 28 to 32 days, followed by 1-day customs clearance and truck delivery to your facility in Tegucigalpa via the CA-5 highway. For urgent laboratory or plant-shutdown replacements, express air freight via DHL/FedEx directly into Palmerola (XPL) or Toncontín (TGU) takes approximately 5 to 7 days total.
4. Can you fabricate custom disc geometries, chamfers, and drill holes from our CAD drawings?
Absolutely. Our facility operates multi-axis CNC glass-machining centers. We accept engineering files in PDF, DWG, DXF, and STEP formats. We routinely manufacture circular discs with step-shoulders, counter-bored mounting holes, bevels (45° or custom radius), flanged seals, and double-sided optical polishing (Ra < 0.5 nm). Diameter sizes range from miniature Ø3 mm optical windows up to large Ø600 mm industrial viewport discs with thicknesses from 0.1 mm to 50 mm.
5. What formula determines the required quartz disc thickness for pressurized viewing vessels?
To calculate minimum thickness (t) for clamped circular sight glasses, we utilize the standard structural glass formula: t = d × √((3 × P × K) / (4 × σ)), where (d) is unsupported sight diameter, (P) is operating pressure in bar, (K) is mounting clamping safety factor (typically 1.25), and (σ) is permissible bending stress for fused quartz (approx. 50 MPa with safety factor 4 to 5). Our engineering department assists Honduran engineering teams in calculating the exact certified thickness required for your autoclave or high-pressure autoclave reactor.
6. How does Lovri guarantee against damage and optical scratching during ocean shipping?
Every individual disc is sealed in dust-free peelable protective film, placed within custom laser-cut dense EPE foam compartments, vacuum sealed in hermetic poly-bags with desiccant, and housed in high-strength export wooden crates compliant with ISPM 15 heat-treatment standards. If any component arrives cracked or damaged during transit, Lovri replaces it free of charge under our factory transit guarantee.
Direct Factory Partnership

Request a Custom Quotation or Engineering Review

Whether you need replacement sight glass discs for water filtration plants, precision UV windows for diagnostic sensors, or heavy-duty furnace tubes in Tegucigalpa, send us your technical drawings or specifications for an instant factory-direct quote.

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