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Laboratory Quartz Instruments & Custom Labware

High-purity fused silica beakers, double-wall photochemical reactors, spectrophotometer cuvettes, and specialized vessels engineered to technical drawings in Donghai, China.

Engineering Excellence

Precision Quartz Apparatus for High-Stress Laboratories

Zunex Quartz Products Co., Ltd. manufactures certified high-purity fused silica laboratory instruments designed for analytical chemistry, semiconductor research, high-temperature synthesis, and photochemical degradation experiments.

Our workshop combines manual hot-flame glassblowing by veteran quartz craftsmen with modern CNC multi-axis milling and laser micro-processing (drilling, slitting, cutting). From 50ml micro-reaction flasks to complex double-layer jacketed photochemical reactors, we fabricate precision laboratory quartzware with strict dimensional tolerances and low hydroxyl levels.

99.99% SiO₂ Purity

Exceptional trace-element cleanliness eliminating sample leaching or catalytic interference during chemical analysis.

1100 °C Resistance

Sustains high continuous operational heat with near-zero thermal expansion coefficient (5.5 × 10⁻⁷/°C).

Broad Acid Inertness

Immune to attack from nitric, hydrochloric, and sulfuric acids at boiling temperatures, ensuring repeatability.

High UV-Vis Clarity

Superior optical transmittance in deep ultraviolet ranges (>90% at 254 nm) for accurate photochemical kinetics.

Verified Product Catalog

High-Purity Laboratory Quartz Series

Manufactured and tested at our Donghai facility. Supporting small-batch sampling and volume repeat contracts.

High Purity Quartz Glass Beaker for Laboratory Use Heat Resistant MOQ: 1 pc $7 - $13 / pc

High Purity Fused Quartz Glass Beakers

Capacity:50ml - 2000ml Purity:≥ 99.99% SiO₂ Forming:Graduated / Spouted Thermal Limit:1100 °C Working
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Customized Quartz Glass Ware Double Wall Jacketed Photochemical Reactor MOQ: 1 pc $4.50 - $8 / pc

Double-Wall Jacketed Photochemical Reactor

Structure:Double-layer Jacketed Cooling:Circulation In/Out Application:UV Photocatalysis Joint:Standard Ground Port
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Quartz Glass Cuvette Flow Cell for Spectrophotometer MOQ: 1 pc $2.50 - $5 / pc

UV Optical Quartz Cuvettes & Flow Cells

Model:GT2404 / Custom Path Range:190 nm - 2500 nm Optical Faces:2 or 4 Polished Tolerance:±0.05 mm
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Bottom Three Neck Double Layer Quartz Glass Jacketed Flask MOQ: 1 pc $4 - $15 / pc

Three-Neck Double-Layer Quartz Jacketed Flask

Capacity:50ml - 5000ml Necks:Center 24/29, Side 19/26 Machining:Precision Ground Mouth Integrity:Annealed Strain-Free
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Custom Twin Tube Single-Flow Double-Channel Quartz Microfluidic Chip Reactor MOQ: 1 pc $15 - $35 / pc

Microfluidic Twin-Channel Quartz Reactor

Design:Dual Channel / Single Flow Fabrication:Laser Micro-Grooving Pressure:High Vacuum Rated Finishing:Optical Bonding & Seal
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Fused Silica Quartz Corrosion-Resistant Twin Tube Boat for Lab Furnace MOQ: 1 pc $5 - $11 / pc

High-Temp Quartz Twin-Tube Combustion Boat

Type:Twin Tube Carrier Boat Working Temp:1150 °C Constant Process:Hot Bending & Welding Application:CVD / Tube Furnace
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High Pressure Helical Heat Resistant Quartz Glass Reactor Spring Coil MOQ: 1 pc $2.50 - $5 / pc

Helical Spiral Quartz Coil Heat Exchanger

Form:Helical Spring Coil Transparency:High Clear Fire-Polish Bending:Precision Flame Lathe Resist:Thermal Shock Proof
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Customized High-purity Quartz Glass Reactor Container Internal Illumination MOQ: 1 pc $12 - $35 / pc

Internal-Illumination Photodegradation Chamber

Configuration:Central UV Light Well Capacity:100ml - 2000ml Cooling:Integrated Water Cold Trap Custom:Ports & Sampling Valves
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Clear Quartz Glass Fused Silica Tube Polished Laboratory Reagent Container MOQ: 1 pc $15 / pc

Polished Quartz Reagent & Digestion Tubes

Finish:Optically Fire-Polished Wall Uniformity:±0.05 mm Base:Flat or Round Bottom Pressure:High Pressure Resistant
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Lab Heat-resistant Pure Quartz Glass Joint Round Bottom Flask MOQ: 1 pc $3 - $4.50 / pc

Round-Bottom Boiling Flask with Ground Joint

Volume:50ml - 1000ml Joint Size:Standard 14/20, 19/22, 24/40 Material:JGS2 / Semiconductor Grade Use:Distillation & Reflux
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Flanged Twin Tube Ozone Free Bending Welding Fused Quartz MOQ: 1 pc $2.50 - $8 / pc

Flanged Quartz Manifold & Vacuum Assemblies

Connection:KF / ISO / Custom Flange Leak Rate:< 1 × 10⁻⁹ mbar·l/s Welding:Precision Oxygen-Hydrogen Features:Ozone-Free Optical Purity
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Factory Direct Lab Customized High Pressure Quartz Glass Tube Long Neck MOQ: 1 pc $3 - $4.50 / pc

Long-Neck Heavy-Wall Digestion Flasks

Neck Type:Extended Annealed Neck Resistance:Thermal Shock & Pressure Volume:50ml / 500ml / 1000ml Bending:Custom Port Angles
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Technical Validation

Laboratory Fused Quartz Material Specifications

Reference data verified by third-party inspection for chemical and physical performance standards.

Technical Property Standard Value Buyer Application Benefit
SiO₂ Purity Level ≥ 99.99% (Trace impurities ≤ 20 ppm) Prevents metal ion contamination in trace element analysis & bio-sampling
Continuous Operating Temp 1100 °C (Intermittent to 1300 °C) Safe for high-temperature calcination, pyrolytic reactions and ash testing
Thermal Shock Tolerance Zero crack from 1100 °C direct water quench Prevents catastrophic shattering during abrupt heating or cooling cycles
UV Spectral Transmittance > 90% at λ = 254 nm (JGS1 Grade) Maximum photochemical efficiency in photocatalytic reactors & UV cuvettes
Acid Corrosion Resistance Weight loss < 0.1 mg/cm² (Boiling HCl/HNO₂/H₂SO₂) Complete resistance to all concentrated mineral acids (except HF & hot H₃PO₄)
Dielectric Strength 25 – 40 kV/mm at 20 °C Superior electrical insulation for plasma chemistry & microwave digestion
Why Source From Zunex

The Trusted B2B Quartzware Partner

Direct manufacturer situated in Donghai County — the world's fused quartz center.

Custom OEM to Drawing

We machine complex shapes, multiple ground ports, helical coils, and microfluidic channels precisely to CAD or drawing files.

≤ 2h Fast Engineering Reply

100% verified response rate with actionable quotes, manufacturability analysis, and tolerance recommendations.

Zero-Defect Quality Control

Every piece undergoes polariscope optical stress testing, dimensional CMM inspection, and airtight helium leak validation.

Break-Proof Export Packaging

Custom form-fitting pearl foam cradles and drop-tested reinforced plywood cases guarantee safe worldwide arrival.

0%Response RateIndependent Alibaba Verification
≤0hResponse WindowDirect Engineer Review
0%Repeat Order RateSustained Buyer Trust
$0M↓Annual RevenueUS$2.5M – US$5.0M Export Range
Frequently Asked Questions

Laboratory Quartz Procurement Questions

What thermal temperatures can Zunex quartz laboratory instruments endure?

Our fused quartz laboratory instruments operate continuously at temperatures up to 1100 °C and can withstand intermittent thermal peaks up to 1300 °C without softening. The softening point is approximately 1683 °C, giving virtually zero thermal expansion and outstanding thermal shock resistance.

Can Zunex manufacture custom laboratory quartzware from engineering drawings?

Yes. Custom OEM fabrication from customer drawings (PDF, STEP, CAD) is our core competence. We provide precision glass blowing, multi-port welding, ground joint fitting, laser drilling, and micro-grooving for non-standard vessels, photochemical reactors, and specialized cuvettes.

How resistant is fused quartz glassware to chemical acids and solvents?

Fused quartz offers exceptional chemical inertness against virtually all acids (including hydrochloric, nitric, and sulfuric acids) at elevated temperatures. Hydrofluoric acid and concentrated hot phosphoric acid are the only exceptions.

What is the typical lead time and packing standard for international export?

Standard prototypes and small batch orders are completed within 5-10 business days. Every quartz piece is individually enveloped in multi-layer pearl cotton foam, vacuum cushioned, and packed inside drop-tested reinforced plywood cases for global express or air shipment.

Ready to Customize Your Laboratory Quartzware?

Send your drawings or technical requirements. Our senior engineers review all parameters and respond within 2 hours.

[email protected]