Quartz Glass Sheet

Quartz Glass Sheet is a high-performance fused silica material made from high-purity silicon dioxide SiO₂. It is engineered for demanding environments that require extreme thermal resistance, excellent optical transmission, and strong chemical stability.

Unlike ordinary glass, quartz glass maintains structural stability under high temperatures and rapid temperature changes. It is widely used in semiconductor manufacturing, UV systems, optical instruments, laboratory equipment, and industrial furnace applications.

Why Quartz Glass Sheet Performs Better Than Ordinary Glass

Quartz glass is fundamentally different from standard soda-lime or borosilicate glass due to its molecular structure and high SiO₂ purity.

1. Extremely Low Thermal Expansion

Quartz glass has a coefficient of expansion as low as 5.5×10⁻⁷ /°C, meaning it barely expands or contracts under temperature changes.

2. High Softening and Working Temperature

· Softening point: 1725°C

· Long-term use: 1100°C

· Short-term resistance: up to 1450°C

3. Superior Optical Transmission

Quartz glass transmits light from ultraviolet UV to infrared IR spectrum.

· Visible transmittance: >93%

· UV transmission: up to 80%+

4. Chemical Stability

Quartz glass is resistant to almost all acids except hydrofluoric acid HF.

Material Grades – JGS Classification

Quartz Glass Sheet is available in three main industrial-grade materials:

JGS1 – UV Grade Quartz Glass

· SiO₂ purity: ≥ 99.9999%

· Best UV transmission performance

· Suitable for: ozone generation, UV sterilization, photochemical systems

JGS2 – Optical Industrial Grade

· SiO₂ purity: ≥ 99.99%

· Flame-fused manufacturing process

· Suitable for: semiconductor, solar energy, optical windows

JGS3 – Infrared Grade

· Excellent IR transmission

· Suitable for infrared optical systems

Technical Specifications

Processing Services

We provide precision CNC machining and customized processing solutions for Quartz Glass Sheet to meet optical, industrial, and engineering requirements.

Precision Cutting

· High-accuracy CNC cutting

· Custom shapes available

· Tolerance control for industrial assembly

Drilling & Machining

· Custom hole positioning

· Micro-hole processing available

· Suitable for optical and mechanical integration

Optical Polishing

· High transparency surface finishing

· Bubble-free and scratch-free surface

· Suitable for UV / optical applications

Edge Finishing

· Fine polished edges

· Beveled edge options

· Anti-crack finishing for thermal applications

Custom Moulding

· Drawing-based manufacturing

· Sample-based replication

· OEM production support

Packaging & Delivery

To ensure safe delivery of Quartz Glass Sheet, we use professional export-grade packaging designed to prevent breakage, scratching, and contamination during international transportation.

Protective Packaging Options

· Carton + Foam Protection
Multi-layer foam protection to prevent surface scratches and minor impact damage

· Wooden Crate Packaging
Reinforced wooden crate for high-value or thick quartz glass sheets

· Wooden Pallet Packaging
Suitable for bulk shipment and container loading stability

· Custom Export Packaging
Tailored packaging based on product size, thickness, and destination requirements

Delivery Time

Standard production and delivery time is 15–20 days, depending on customization requirements and order quantity.

Shipping Reliability

Quartz Glass Sheet is fragile and high-precision material. All packaging is designed to ensure:

· Impact resistance during long-distance transport

· Moisture and dust protection

· Stable stacking in container shipping

· Reduced risk of edge chipping or surface damage

FAQ

1.What tolerances can you achieve for quartz glass sheets?

We can control thickness tolerance to ±0.05 mm under standard production and ±0.01 mm for high precision requirements.
Dimensional tolerance is normally ±0.1 mm depending on product size.
Surface flatness can reach up to λ/4 based on application requirements.

2.Can you provide optical performance data?

Yes, we can provide full transmission curves covering UV, visible, and infrared ranges.
We also supply spectrophotometer test reports upon request.

3.What surface quality options are available?

We provide several surface quality levels, including industrial grade 60/40, optical grade 40/20, and laser grade 20/10.
Surface roughness can be controlled down to Ra < 0.5 nm for high-precision optical applications.

4.What is your minimum order quantity?

Standard sizes MOQ can be as low as 1 piece

Custom production MOQ depends on specifications and complexity

We support both prototype and bulk orders

5.What is the production lead time?

For standard sizes, the minimum order quantity can be as low as 1 piece.
For custom specifications, the MOQ depends on design complexity and production requirements.
We support both prototype and bulk production orders.

6.How do you ensure product quality before shipment?

Each quartz glass sheet is inspected for dimensional accuracy, surface quality, optical clarity, and edge condition before shipment to ensure compliance with requirements.

7.How is quartz glass packaged for shipping?

We use export-grade packaging, including foam protection, shock-resistant materials, and wooden crates to ensure safe transportation.
Moisture-resistant protection is also applied for long-distance shipping.

8.What happens if damage occurs during shipping?

If damage occurs, we will review the case based on photo or video evidence and provide replacement or compensation according to agreed trade terms.