From optical-grade raw quartz blocks to industrial halogen & ruby emitters, explore our high-temperature products manufactured in Lianyungang, certified under strict quality protocols.
High-stability short-wave emitter tailored for rapid web heating, uniform fabric drying, and synthetic polymer processing in demanding textile plants.
Glare-reduced optical red quartz sleeve filtering visible light, maximizing curing efficiency on automotive coatings and anti-corrosion lacquers.
Electro-deposited 24K gold mirror backing reflecting over 90% of infrared radiation forward, preventing ambient heat loss on print substrates.
High-temp ceramic reflector layer permanently fused to quartz body, offering shock resistance and high operating temperatures in automated lines.
Precision directional radiation profile designed for machinery packaging, plastics thermoforming, and cleanroom heat treatment modules.
Twin-bore quartz envelope providing elevated mechanical rigidity up to 3000mm length, ensuring uniform core preheating for PET bottle molds.
Versatile clear quartz tube emitting high-density photon fluxes, compatible with Canadian conveyor furnaces, laminators, and resin dehydrators.
Ruggedized anti-shock quartz structure built for harsh Canadian sub-zero installations, industrial comfort zones, and foundry prep ovens.
Based in the global hub of quartz synthesis in Lianyungang, Kavri Quartz manufactures optical, semiconductor, and heavy industrial quartz blocks compliant with North American manufacturing tolerances.
Procuring quartz glass blocks (fused silica billets, ingots, and rectangular optical blanks) for the Canadian industrial landscape presents unique technical parameters. Canadian engineering facilities—ranging from Ontario’s specialized automotive automation clusters and Quebec’s aerospace laser laboratories to Alberta’s severe oil and gas downhole instrumentation and British Columbia’s clean-tech cleantech initiatives—require synthetic and electric-fused quartz capable of withstanding extraordinary thermal delta conditions while maintaining zero thermal expansion and absolute optical homogeneity.
Kavri Quartz leverages geographic positioning in Lianyungang (neighboring Donghai, China’s primary silica crystallite deposit and processing core). Our quartz blocks are formed through high-temperature vacuum fusion of purified crystal grains (>99.99% SiO₂ content) or synthetic chemical vapor deposition (CVD), eliminating trace heavy metals, alkali contaminants, and macroscopic hydroxyl (-OH) inclusions. This level of purity ensures that our quartz blocks exhibit exceptional ultraviolet-to-infrared spectral transmission (190 nm to 3500 nm), mechanical shock immunity, and structural integrity up to continuous service operating thresholds of 1100°C.
Technical Insight for Canadian Importers: Our quartz blocks are annealing-stabilized to achieve minimal internal residual stress (birefringence optical path difference ≤ 5 nm/cm). This guarantees crack-free CNC milling, diamond cutting, and deep ultrasonic drilling when Canadian toolmakers fabricate custom viewports, dielectric substrate carriers, or high-temperature sight glasses.
| Property Parameter | JGS1 (Synthetic Silica) | JGS2 (Optical Grade Quartz) | JGS3 (Infrared Fused Quartz) | Standard Test Standard |
|---|---|---|---|---|
| SiO₂ Purity Ratio | ≥ 99.999% | ≥ 99.99% | ≥ 99.98% | ICP-OES Spectrometry |
| Hydroxyl (-OH) Content | < 5 ppm to 1200 ppm (Opt.) | < 150 ppm | < 5 ppm (Water-Free) | FTIR Spectroscopy |
| Continuous Operating Temp | 1100 °C | 1100 °C | 1150 °C | Thermal Soak Testing |
| Coefficient of Thermal Expansion | 5.5 × 10⁻⁷ / K (0-300°C) | 5.5 × 10⁻⁷ / K | 5.4 × 10⁻⁷ / K | Dilatometry (ASTM E228) |
| Softening Point (Log η = 7.6) | 1730 °C | 1680 °C | 1710 °C | High-Temp Viscometer |
| Dielectric Strength (20°C, 1MHz) | 25 - 40 kV/mm | 25 - 35 kV/mm | 25 - 35 kV/mm | ASTM D149 Protocol |
Engineered for extreme thermal shocks and critical industrial duties across the Canadian provinces.
Canadian outdoor industrial setups experience extreme temperature deltas from -40°C in winter to operational temperatures beyond +800°C within seconds. Kavri's ultra-low thermal expansion rate (α = 5.5 × 10⁻⁷/K) ensures sight windows and high-pressure inspection ports never shatter under severe thermal shock.
For research corridors in Montreal and Waterloo, our JGS1/JGS2 synthetic fused silica blocks provide deep ultraviolet transparency down to 190 nm, making them optimal blanks for laser mirrors, high-energy beam splitters, and aerospace sensors requiring minimal bubble density (ISO 10110 Grade 0).
In Alberta’s oil sands extraction and Sudbury’s nickel smelting plants, molten slurries and acidic gas byproducts destroy borosilicate glass. Our chemical-inert quartz blocks resist all mineral acids (excluding HF) and maintain full structural integrity under aggressive flue environments.
With Canada's growing investments in domestic semiconductor fabrication and lithium battery electrolyte development, our ultra-pure quartz blocks serve as high-dielectric furnace supports, microwave sintering trays, and sputtering target backing blocks with zero ionic leaching.
Coupled with our OEM quartz infrared halogen lamps, specialized quartz plates and blocks are incorporated into heat-recovery drying headers in Ontario and Quebec paper mills, delivering focused wavelength tuning that accelerates water evaporative extraction without fiber scorching.
We supply square, rectangular, and cylindrical quartz ingots with precision diamond ground surfaces (tolerance ±0.05mm), enabling Canadian machine shops to CNC lap, polish, and fabricate complex scientific instruments without encountering hidden air bubbles or crystallization fractures.
Strategic dynamics transforming the sourcing choices of Canadian procurement managers and engineering executives.
As Canadian carbon taxes rise, factories are phasing out inefficient natural gas convection tunnels in favor of electric infrared systems encased in high-temperature quartz. Direct infrared photon transfer cuts energy consumption by up to 45% across coating lines.
Rather than importing finished, fragile quartz instruments at elevated tariffs, Canadian fabricators increasingly import bulk quartz blocks directly from verified Chinese manufacturers, completing fine optical finishing domestically for local IP protection.
Canadian engineering buyers now demand complete elemental impurity batch sheets (ICP-MS) and ISO 9001 compliance. Kavri ensures transparent quality control from raw silica melting to pre-shipment polariscope optical stress testing.
With shipping routes connecting Ningbo and Qingdao ports to Vancouver and Prince Rupert, direct factory contracts bypass intermediary markups, slashing lead times for custom-cut quartz billets from months to under 18 business days.
Combining over 10 years of direct OEM/ODM precision manufacturing with streamlined North American shipping logistics.
Situated in Lianyungang, Jiangsu, our factory enjoys unhindered access to top-grade crystal mineral feeds, lowering production costs while sustaining uninterrupted raw block casting even during global supply contractions.
Equipped with diamond wire slicing saws, surface grinding machines, double-sided optical polishers, and hydrogen-oxygen flame lathe workstations, we execute block fabrication from rough billet to λ/4 flatness.
Trans-Pacific maritime and airfreight require robust safeguarding. Every quartz block order is vacuum-sealed, sealed with anti-scratch PE film, and packed into custom foam-cushioned wooden crates engineered for winter rail handling across Canada.
Clear, technically accurate answers covering import regulations, material selection, freight options, and custom engineering.
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