JGS1 OPTICS
JGS1 High Purity Fused Quartz Glass Sheet
Deep-UV transparent, 99.99% SiO₂, ROHS certified, 200 Mesh annealed laser grade for spectroscopy and laser observation.
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Industrial-Grade Inventory
High-Purity Fused Quartz Glass Products & Custom Components
Manufactured to ASTM C1157 and ISO 9001 standards under rigorous polarization strain analysis, our fused silica and quartz products withstand aggressive thermal cycling up to 1300°C.
FLUIDICS
420 Custom Fused Quartz Fluidic Component
99.99% SiO₂ precision annealed to 1200°C. Resists devitrification in supercritical hydrocarbon stream analysis.
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SPIRAL / HELIX
High Purity Fused Quartz Spiral Tube
Laser flow coil with bending and welding precision. Optimized for coolant jacket isolation and chemical extraction.
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SEMICON / CVD
High Temperature Quartz Wafer Boat
99.99% silica semiconductor carrier. Welded quartz rod ladder frame designed for ultra-high temperature tube furnaces.
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CUSTOM OEM
Custom Lab Quartz Glass Apparatus
Bespoke analytical synthesis vessels, reaction columns, and distillation quartz towers built to technical engineering drawings.
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IR HEATING
Opaque Fused Silica Quartz Spiral Tube
Microporous infrared reflective structure. Essential for industrial rapid thermal curing and continuous bitumen heating units.
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POLISHED SIGHT
BAO RAN 419 Double-Sided Polished Sheet
Optical parallel polishing, white rim ground edges, zero internal bubbles. High pressure sight glass for autoclave ports.
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CNC MACHINED
JGS1 High-Purity CNC Machined Window Jig
Ultra-precise geometric tolerances (±0.02 mm), countersunk bores, polished optical surfaces for UV cleanroom scanners.
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Engineering Whitepaper
Material Science of High-Purity Fused Quartz Bars in Demanding Applications
Unlike standard borosilicate (Pyrex) or soda-lime glass, fused quartz glass bars are non-crystalline vitreous silica ($SiO_2$) manufactured through high-temperature oxy-hydrogen or electric vacuum melting. For technical procurement teams across the Edmonton Metropolitan Region, understanding quartz material physics ensures long-term operational integrity.
Unmatched Thermal Shock & Integrity
The coefficient of thermal expansion (CTE) of transparent fused quartz is exceptionally low at $5.5 \times 10^{-7} \text{ K}^{-1}$ between 20°C and 300°C. A 20 mm diameter solid quartz bar can be heated red-hot to 1100°C and plunged directly into ice water ($0^\circ\text{C}$) without shattering.
- Continuous operating threshold: 1100°C
- Short-peak thermal load: 1300°C to 1350°C
- Sub-zero stability down to -196°C (Cryogenic liquid N₂)
Corrosion Immunity in Acidic Media
Fused quartz bars remain chemically inert against almost all aggressive chemical media, including concentrated nitric acid ($HNO_3$), sulfuric acid ($H_2SO_4$), hydrochloric acid ($HCl$), and organic bitumen solvents at elevated process temperatures.
- Total resistance to sour gas ($H_2S$) and wet $CO_2$ streams
- Zero alkali metal leaching into analytical samples
- Only attacked by hydrofluoric ($HF$) and hot phosphoric acid
Broad Spectral Optical Transmission
From deep ultraviolet (DUV 185 nm) through visible spectrum to near-infrared (3500 nm), fused quartz rods serve as high-efficiency optical transmission guides and pyrometric thermal viewing rods with virtually zero internal scattering or attenuation.
- JGS1: Synthetic fused silica for laser and UV curing
- JGS2: Optical quartz for reactor sight gauges and level bars
- JGS3: Hydroxyl-depleted silica for high-temperature IR pyrometry
| Physical Property | Fused Quartz Bar (SiO₂ ≥ 99.99%) | Borosilicate Glass 3.3 | Monocrystalline Sapphire (Al₂O₃) | Soda-Lime Glass |
|---|---|---|---|---|
| Density (g/cm³) | 2.20 | 2.23 | 3.98 | 2.50 |
| Thermal Expansion (CTE, 10⁻⁷/K) | 5.5 (Ultra Low) | 33.0 | 58.0 | 90.0 |
| Softening Point (°C) | 1730°C | 820°C | 2040°C | 720°C |
| Maximum Continuous Temp (°C) | 1100°C | 450°C | 1800°C | 250°C |
| Refractive Index ($n_d$) | 1.458 | 1.473 | 1.768 | 1.518 |
| UV Cut-off Wavelength (nm) | 185 nm (JGS1) | 310 nm | 150 nm | 360 nm |
| Dielectric Strength (kV/mm at 20°C) | 25 – 40 | 18 – 25 | 48 | 10 – 15 |
Edmonton Regional Applications
Tailored Fused Quartz Solutions Across Alberta's Industrial Corridors
From the downstream petrochemical complexes of Strathcona County and Fort Saskatchewan to nanotech cleanrooms at the University of Alberta, local industrial operators depend on heavy-wall quartz bars and custom rods for mission-critical operations.
Strathcona Petrochemical & Refining
In the heavy industrial belt east of Edmonton, refining units, fluid catalytic crackers (FCC), and sulfur recovery units require clear quartz level-gauge reflex bars, autoclave sight rods, and pyrometry viewports.
- High-pressure fluid level indicators for volatile alkanes
- Thermocouple protective quartz sheaths in reforming furnaces
- Optically polished observation bars for high-pressure autoclaves
Edmonton Hydrogen Hub & CCUS Systems
As Edmonton cements its position as Canada's primary clean hydrogen production node, Auto-Thermal Reforming (ATR) and Carbon Capture, Utilization, and Storage (CCUS) facilities deploy quartz components to monitor high-pressure syngas synthesis.
- Supercritical $CO_2$ pipeline optical diagnostic rods
- High-temperature flame detection in hydrogen combustion nozzles
- Zero-porosity inert quartz seals preventing hydrogen embrittlement
U of A nanoFAB & Research Cleanrooms
The University of Alberta nanoFAB and National Research Council (NRC) labs require custom-slotted quartz wafer carriers, diffusion push-rods, and synthetic JGS1 light guides for deep-UV microlithography and vapor deposition.
- Solid JGS1 optical bars for laser alignment tools
- High-purity quartz handling rods for silicon and SiC wafer batches
- Custom quartz combustion boats for advanced material synthesis
Environmental Water Treatment: North Saskatchewan River
Municipal water treatment facilities (such as E.L. Smith and Rossdale Water Treatment Plants in Edmonton) and provincial environmental monitoring teams employ high-throughput ultraviolet disinfection units. These installations require high-transmittance fused quartz sleeves and supporting quartz positioning bars that do not degrade, yellow, or solarize under continuous 254 nm germicidal UV-C irradiation.
Lovri's proprietary hydroxyl-controlled quartz manufacturing processes ensure transmission rates exceed 90% at 254 nm, maximizing UV dose delivery while resisting fouling from riverbed mineral scalants.
Custom Machining Capabilities for Alberta Specs
- Diameters from Ø1.0 mm capillary rods to Ø150 mm heavy billet bars
- Length capabilities up to 2500 mm with precision surface grinding
- End finishes: Fire-polished, flat ground (λ/4 flatness), chamfered, or spherical lens ends
- Special profiles: Square quartz bars, rectangular reflex bars, hex rods, and drilled central bores
Industry Dynamics
Emerging Procurement Trends in Western Canada's Glass Supply Chain
Industrial procurement in Alberta is shifting rapidly away from slow, intermediate-distributor networks toward verified direct-from-source manufacturers capable of technical validation and rapid air/rail logistics.
1. Decarbonization & High-Efficiency Thermal Recovery
Major infrastructure projects in the Edmonton Energy Transition district are upgrading industrial boilers and reformer furnace jackets with energy-efficient opaque silica heaters and direct-vision quartz sight rods. Real-time pyrometry through fused quartz windows allows tighter closed-loop thermal control, reducing fuel consumption by up to 14%.
2. Direct OEM Bypass of Domestic Distributor Markups
Historically, Edmonton research teams and chemical plants purchased European or American quartz via secondary distributors, incurring 30% to 50% price markups and 8-to-12-week lead times. Direct factory contracting with Lovri provides identical certified material quality at factory-gate pricing with guaranteed drawing verification within 24 hours.
3. Zero-Defect Annealing Verification Requirements
Sub-zero winter operations across Alberta (-40°C in December–February) introduce intense thermal gradients when plant interiors operate at +250°C. Buyers now strictly mandate certified optical polariscope strain-free reports to eliminate catastrophic brittle fractures caused by locked-in manufacturing stress.
Why Lovri Quartz
Vertically Integrated Manufacturing & SGS-Verified Factory Footprint
Located in Lianyungang, China—the global epicenter of high-purity natural silica sand reserves—Lovri Quartz controls the complete processing line from raw crystalline rock crushing to laser-grade polishing and export packing.
14,271 m² Assessed Workshop
Independently audited onsite by SGS Group. Equipped with automated drawing towers, multi-axis CNC lathe centers, and vacuum fusion furnaces.
Controlled Raw Material Chain
We crush, screen, and acid-pickle silica lumps in-house to achieve 99.99% SiO₂ purity without relying on external third-party raw stock.
100% Polariscope Stress Checked
Every single quartz bar, rod, and sheet undergoes specialized thermal de-stress annealing followed by polarization optical stress inspections.
Intermodal Logistics to Edmonton
Cushioned vacuum-wrapped export packaging inside multi-layered plywood crates, engineered to survive transpacific freight and Canadian National (CN) rail routes.
Procurement Guide
Frequently Asked Questions by Edmonton Engineers & Buyers
Answers to technical, logistics, compliance, and custom-processing questions commonly posed by Western Canadian operations and procurement officers.
How do Lovri fused quartz bars withstand harsh Edmonton winters (-40°C)?
Fused quartz features an extraordinarily low thermal expansion coefficient ($5.5 \times 10^{-7}/\text{K}$), virtually eliminating internal stress during rapid extreme temperature shifts. Even if an external sight bar is exposed to sub-zero ambient Edmonton winter temperatures while the internal chamber face is exposed to +800°C process fluid, fused quartz will not suffer mechanical failure or shatter like ordinary borosilicate.
What is the typical shipping timeline from factory to Edmonton, Alberta?
For urgent prototypes and small replacement orders (1–20 pcs), we use express air freight (DHL/FedEx/UPS) with an average door-to-door transit time of 5–8 business days to Edmonton International Airport (YEG). For bulk volume orders, goods are shipped via ocean freight to the Port of Prince Rupert or Port of Vancouver, followed by CN Rail direct to the Edmonton Intermodal Terminal, typically taking 20–26 calendar days.
What documentation accompanies quartz shipments for Canadian Customs (CBSA)?
Every shipment arrives with full commercial invoices, packing lists with accurate HS tariff codes (typically under Chapter 7002 for quartz rods/tubes), Certificate of Origin (COO), RoHS compliance statements, and upon request, spectral transmission curves and raw material silica spectroscopic assay certificates.
Can you machine quartz bars to custom CAD/SolidWorks drawings?
Yes. Our CNC glass-machining centers support STEP, DWG, DXF, and PDF engineering formats. We perform precision OD surface grinding, laser scoring, optical polishing, internal and external thread tapping, custom slotting, beveling, and multi-piece flame fusion welding with dimensional tolerances held as tight as ±0.01 mm.
What is the difference between JGS1, JGS2, and JGS3 quartz bar grades?
JGS1 is synthetic fused silica with zero bubbles, offering superior deep-UV transmission (185–2500 nm) with virtually no OH absorption peaks. JGS2 is flame-fused quartz widely used for sight gauges, flow viewports, and general optical lighting (220–2500 nm). JGS3 is electrically melted quartz under vacuum, featuring ultra-low hydroxyl (OH < 5 ppm) content, providing optimal transmission in the infrared spectrum (up to 3500 nm) for IR furnace viewports and optical heat sensors.
What is your Minimum Order Quantity (MOQ) for non-standard bar profiles?
We provide full prototyping flexibility: for standard bar diameters, the MOQ is 1 piece. For custom CNC-slotted wafer bars, square profile light guides, or specialty apparatus prototypes, we regularly support low-run production (1–5 pcs) to assist engineering trials prior to commercial plant rollouts.
Connect with Our Fused Quartz Engineering Specialists
Whether you require standard stock quartz glass bars, custom optical sight rods, or complete high-temperature assemblies for your Edmonton facility, our technical team provides rapid drawing evaluation and competitive factory quotes.