Quartz Plate 100x100mm 200x200mm Fused Silica Clear Custom Cut
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Engineered Glass Solutions
Precision Fused Quartz Plates & Components
Direct manufacturer export offering ISO-compliant optical inspection, double-sided optical polishing, flame-worked blanks, and specialized heat-resistant sight glass cuts for industrial installations.
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Market Specific Engineering
Localized Applications in Greater Medan & Belawan Port Hub
How specialized high-purity quartz flatware and sight viewports solve severe thermal shock, chemical corrosion, and high-pressure monitoring challenges across North Sumatra's primary processing sectors.
Palm Oil Mills (PKS) & Oleochemical Refineries
Medan acts as the financial and logistical epicenter for North Sumatra's massive crude palm oil (CPO) operations. In continuous biomass-fired water tube boilers, vacuum deodorizers, and high-pressure hydrogenation reactors, standard borosilicate sight glasses repeatedly experience thermal shock fractures or alkaline clouding. Our heat-resistant fused silica sight plates withstand continuous operational peaks up to 1,100°C and sudden quenching, preventing costly unplanned line shutdowns in facilities across Kawasan Industri Medan (KIM).
Boiler Sight Glasses · Level GaugesIndustrial UV Water & Effluent Treatment
With North Sumatra mandating stricter environmental regulations around Palm Oil Mill Effluent (POME) discharge and industrial process water reclamation, high-output ultraviolet disinfection systems are mandatory. We engineer custom-machined thin quartz plates and sleeves that offer >90% transmission at the 254 nm germicidal line. Unlike standard glass that solarizes and degrades under deep UV exposure, our optical-grade fused silica plates maintain full clarity across years of continuous irradiation.
UV Reactor Windows · Quartz DiscsThermal Power Plants & Petrochemical Viewports
The heavy chemical plants surrounding Belawan and the Sei Mangkei Special Economic Zone demand quartz viewports designed for high vacuum and extreme differential pressure. Our CNC-machined polished discs, fabricated with ground chamfers and center-drilled ports, handle intense corrosive atmospheres, hot sulfur fumes, and acidic condensates without pitting or surface devitrification, guaranteeing clear visibility for infrared pyrometry and optical sensors.
Flanged Windows · Pressure ViewportsTechnical Whitepaper: Material Performance of VEZLO Fused Silica
Procuring quartz components for high-reliability industrial assets requires verifiable performance metrics. Unlike conventional soda-lime or borosilicate materials, transparent fused quartz glass produced from naturally occurring high-purity crystalline quartz exhibits near-zero thermal expansion (5.5 × 10⁻⁷ /°C). This gives it an unmatched resistance to severe thermal shock: a red-hot quartz plate heated to 1,000°C can be plunged into icy water without catastrophic shattering.
| Physical & Thermal Property | Fused Quartz Plate Value | Standard Borosilicate 3.3 | Procurement Benefit for Plant Engineers |
|---|---|---|---|
| Silica Purity (SiO₂) | ≥ 99.99% | ~ 81% | Total chemical inertness; resists acid vapor corrosion. |
| Coefficient of Thermal Expansion | 5.5 × 10⁻⁷ /°C | 33 × 10⁻⁷ /°C | Zero structural warping under rapid cycling up to 1,100°C. |
| Maximum Continuous Temperature | 1,100 °C | 450 °C | Safely deploys directly on furnace flues, burners & boilers. |
| Short-Term Softening Point | 1,683 °C | 820 °C | Prevents blowout failure during emergency thermal overruns. |
| Spectral Range Transmission | 190 nm – 3,500 nm | 300 nm – 2,500 nm | Full transmission spanning Deep UV, Visible, and Near-IR bands. |
Our raw material feedstock originates from the mineral center of Donghai, where our 13 grades of ultra-high-purity refined sands maintain total conventional metal impurities at ≤20 ppm. This structural purity ensures that our manufactured quartz glass plates, tubes, and rods retain high optical transmission and structural rigidity without bubble clustering or devitrification crystallization over long operational life cycles.
Market Intelligence
Regional Sourcing Trends Across North Sumatra (2025–2030)
Evaluating procurement shifts, regional downstream industrialization, and supply-chain risk mitigation for Medan's manufacturing base.
Downstream Agro-Chemical Value Addition
Under Indonesia's national industrial roadmap (Hilirisasi), Medan's processing industry is rapidly transitioning from raw CPO export to fine oleochemicals, surfactants, fatty acids, and green biodiesel. These advanced reaction processes operate at significantly elevated pressures and temperatures. Consequently, maintenance teams at KIM are moving away from multi-layered tempered soda glass to monolithic fused quartz plates to prevent alkali leaching and premature clouding.
Direct-from-Source Exporter Reliability
Purchasing managers in North Sumatra historically faced substantial markups and sluggish delivery schedules from secondary brokers located in Jakarta or Singapore. Direct factory engagement with specialized Chinese manufacturers—specifically those based in Donghai's quartz hub—enables procurement directors in Medan to secure custom CNC cut-to-drawing plates with precise tolerance compliance (±0.05 mm) at direct factory pricing.
Stringent Automated Sensor Integration
Newer industrial facilities in Deli Serdang and Langkat are heavily integrating automated optical and pyrometric quality inspection lines. These setups require optical quartz plates functioning as vacuum windows and non-contact thermal camera viewports. High spectral flat-line transmission from UV to short-wave infrared is paramount, turning precision quartz plates from simple mechanical viewports into vital optical components.
Manufacturing Credentials
VEZLO Quartz: Industrial Heritage & Technical Capabilities
Combining primary mineral purification, advanced thermal drawing, and precision cold fabrication within China's recognized Quartz Capital.
33,000 m² Base in Donghai
Our 50-mu facility in Donghai County, Jiangsu, leverages natural high-purity quartz reserves and RMB 10 million in fixed assets, giving direct raw material control from sand melting to CNC edge grinding.
Scale & InfrastructureProvincial & National Projects
Developer of the 320 mm high-purity quartz tube for large-scale integrated circuits (Jiangsu Science & Technology Project) and the newly reviewed 520 mm large-diameter furnace tube.
Proven R&D AuthorityVerified Supply Compliance
Fully audited on-site facilities with Trade Assurance protections. Every shipment destined for international ports like Belawan undergoes strict optical, bubble, and micrometer dimensional checks.
Quality GuaranteedExport-Grade Shockproof Crating
Fragile quartz flatware is individually wrapped in pearl cotton or high-density foam, secured in multi-layer corrugated containers, and packed in fumigation-free plywood crates for sea and air freight.
Zero Transit Damage
Procurement Guidance
Frequently Asked Questions for Indonesian & Medan Buyers
Critical considerations regarding customs, thermal compatibility, lead times, and custom processing for North Sumatra engineers.
What is the practical difference between standard borosilicate sight glass and fused quartz plate in boiler operations? +
While borosilicate 3.3 glass is suitable for standard temperatures up to 300°C–400°C, it suffers thermal stress and crystallization when subjected to boiler flame impingement or sudden cold water washing. Fused quartz glass features a softening point above 1,680°C and a long-term service threshold of 1,100°C. In heavy-duty biomass and CPO boilers around Belawan and KIM, quartz sight plates completely eliminate thermal shock fractures and resist surface etching from corrosive flue gas condensates.
Can you produce custom shapes, beveled edges, and center holes based on our technical CAD drawings? +
Yes. VEZLO specializes in bespoke OEM/ODM fabrication. We process rectangular plates, circular viewport discs, step-cut sight glasses, center-hole apertures for sensors or electrodes, and precision beveled edges. Typical dimensional tolerances are maintained within ±0.05 mm to ±0.2 mm based on application demands, with double-side optical polishing (80/50 or 60/40 scratch-dig) available for optical-grade requirements.
What are the shipping routes, packaging methods, and typical transit times to Port of Belawan, Medan? +
We provide sea freight shipments directly routed to the Port of Belawan (IDBLW) via Qingdao or Lianyungang, with typical ocean transit times spanning 14 to 22 days. For urgent plant shutdowns or critical spare parts replacements, air cargo or express delivery (DHL/FedEx) to Kualanamu International Airport (KNO) delivers within 4 to 7 business days. All fragile shipments are packaged with custom shock-absorbing foam cushions inside export-standard fumigation-free plywood crates.
How does high-humidity, marine ambient air in North Sumatra impact the optical clarity of quartz plates? +
Unlike standard window glass or low-grade silicate formulations, high-purity fused silica (SiO₂ ≥99.99%) contains negligible alkaline metals (Na₂O, K₂O <5 ppm). As a result, it does not suffer from glass blooming, alkaline weathering, or humidity haze, even in the coastal tropical climate of Belawan and Medan. The surface maintains full optical transparency and chemical stability without devitrification.
What documents are provided to clear Indonesian customs and ensure quality conformity? +
We supply a complete export documentation suite including Certificate of Analysis (COA) confirming silica purity and trace element limits, dimensional inspection reports, Form E (ASEAN–China Free Trade Certificate of Origin for preferential import duties), Commercial Invoice, Detailed Packing List, and Ocean Bill of Lading (or Airway Bill).
What parameters should our engineering team provide to get an accurate quote quickly? +
To receive a verified engineering reply within 2 hours, please provide: 1) Physical dimensions (Length, Width, Thickness or Diameter), 2) Surface requirement (Fine Ground vs Double-Side Optical Polished), 3) Working environment (Operating temperature, working pressure, contact chemical media), 4) Edge finish (Seamed, C-ground, or Flat polished), and 5) Estimated order quantity.
Connect Directly with Our Quartz Engineering Team
Whether you require standard stock sight glasses for boiler refits in Medan or custom optical quartz viewports built to CAD drawings, our technical sales engineers provide quotes, dimensional assessments, and material data sheets within 2 hours.
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