TÜV Rheinland Verified Custom Quartz Manufacturer
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SJ 140 QUARTZ Customizable Transparent High Purity 99.9-99.999% Precision Polished Quartz Boat >85% Transmittance 1100 Lab

Product Description

The Free Services You Can Enjoy
Custom CAD drawings or complete engineering solutions formulated within 2 hours based on your application scenario.
Full customization support according to diameter, thickness, length, or provided engineering drawings.
Expert team with up to 15 years of industry experience to guarantee precise solutions tailored to your usage.
Direct and efficient technical communication to ensure all custom project demands are accurately satisfied.
Product Description & Specifications
Quartz Tube Specifications
Specification Based on drawings or require customization
Material More than 99.99% SiO₂
Customized Service Ends closing, sand blasting, polishing, bending, cutting, pinching, burning mouth and more
Density 2.2 g/cm³
Max Operating Temp 1120°C
Tolerance Control Min: ±0.01mm (adjusted according to actual situation)
SJ QUARTZ Key Advantages
Source Factory | Fully Customizable | Export Quality Standard | Multi-Scene Applications
1. Ultra-High Purity & Stable Chemistry
99.99% SiO₂ | Acid/Alkali Resistant | No Harmful Leaching

Applications: Lab Ware, Semiconductor Equipment, Food-Contact Parts

2. High Temp & Thermal Shock Resistant
1730°C Melting Point | 1100°C Long-Term Use | No Cracking

Applications: High-Temp Furnaces, Heater Sheaths, Quartz Oil Burners

3. Superior UV & Optical Transmittance
1000x UV Transmittance vs Glass | Deep UV Compatible

Applications: UV Sterilizers, Optical & Laser Equipment, PV Components

4. Excellent Electrical Insulation
Stable Insulation (Room to High Temp) | Arc Resistant

Applications: High-Voltage Lamps, Vacuum Tubes, Semiconductor ICs

5. High Customizability
Precision Cutting & Engraving | Custom Size & Logo

Applications: B2B Custom Engineering Orders, Branded Components

6. Safe & Eco-Friendly
No Heavy Metals or Toxins | Meets Int'l Safety Standards

Applications: High-purity Tableware, Baby Accessories, Medical Ware

* For properties not mentioned in the table, please consult customer service.
Company Profile & Facility
Packing & Delivery
Quality Control Inspection

Quality Control

Using three-coordinate detectors, height gauges, electronic digital calipers, and measuring projector stress gauges, we thoroughly inspect product appearance and dimensions in compliance with strict customer specifications. All quality control data and test reports are fully traceable. Following rigorous training, operators are qualified inspectors, and all measuring instruments are managed strictly under MSA control.

Packaging Specifications
Packaging Specifications

The product itself is wrapped securely in multi-layer bubble wrap, interior gaps are filled with shock-absorbing foam, and outer packaging utilizes a standard export-specification wooden crate. Customized packaging requests are fully supported.

Customized Laser Engraving
Customized Service

Equipped with precision laser engraving machines, we can cleanly engrave trademarks, custom logos, scale lines, and serial numbers directly onto products according to customer requirements.

Physical & Chemical Properties
Thermal Properties Value
Thermal Performance Coefficient of Expansion (20°C - 350°C) 5.5 × 10⁻⁷ / °C
Thermal Conductivity (W/m·°C, 20°C) 1.4
Specific Heat (J/kg·°C, 20°C) 670
Softening Point (viscosity) 1730°C
Annealing Point 1215°C
Deformation Temperature (long-term heat retaining) 1120°C
Electrical Properties Value
Electrical Performance Electrical Resistivity (350°C, ohm-cm) 7 × 10⁷
Insulating Strength (20°C, kV/cm) 250 - 400
Dielectric Constant 3.7
Corrosion Media Test Conditions Corrosion Rate
H₂SO₄ Density 1.84, 2h, 20°C, g/cm² 1.4 × 10⁻⁸
HNO₃ Density 1.4, 2h, 20°C, g/cm² 5 × 10⁻⁸
HCl Density 1.19, 2h, 20°C, g/cm² 15 × 10⁻⁸
NaOH 1%, 2h, 110°C, g/cm² 166 × 10⁻⁶
KOH 1%, 2h, 98°C, g/cm² 68 × 10⁻⁶
Mechanical Properties Value
Mechanical Performance Density (g/cm³) 2.2
Compression Strength (N/mm²) 1100
Bending Strength (N/mm²) 67
Tension Strength (N/mm²) 48
Micro Hardness (N/mm²) 8600 - 9800
Moh's Hardness 5.5 - 6.5
* For properties not mentioned in the table, please consult customer service.
Frequently Asked Questions (FAQ)
Q1 Can I have a sample order?
Yes, we welcome sample orders to test and inspect product quality.
Q2 What about the delivery time?
Standard delivery is completed within 15 days after receiving the deposit.
Q3 Do you have any MOQ limit?
We offer low MOQ; 1 piece for sample checking and evaluation is readily available.
Q4 How do I proceed with an order at your factory?
Firstly, let us know your requirements or specific application. Secondly, we quote based on your requirements or provide our engineering suggestions. Thirdly, the customer confirms the samples and places the deposit for the formal order. Fourthly, we schedule and execute production.
Q5 How do you ship the goods and how long does it take to arrive?
Express couriers like DHL, UPS, FedEx, or TNT are optional for small orders, typically taking 3-5 days to arrive. Air freight and sea shipping options are also fully available for bulk shipments.
Q6 Can you produce custom quartz parts based on drawings?
Yes, our engineering team can formulate CAD drawings or customized solutions within 2 hours based on your requirements, with full support for precision cutting, sand blasting, polishing, pinching, and logo laser engraving.

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