Your Professional Ceramic Shell Supplier
Established in 2002, Yixing Xiongyu Ceramics Co., Ltd. (formerly Suzhou Jingchuang Ceramics Co., Ltd.) specializes in the research, development, production, and sales of high-performance industrial ceramics and precision ceramic parts. Located in Dingyu Town, Yixing City, Jiangsu Province—renowned as the "Ceramic Capital"—the company benefits from over 20 years of industry expertise. We operate advanced production lines, including automated molding and precise sintering technologies. Our factory is equipped with state-of-the-art equipment to manufacture talc ceramics, alumina, and zirconia products known for their exceptional high-temperature resistance, insulation, and wear resistance. Our products serve diverse industries including automotive, lighting, and personal care.
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why choose us
State-of-the-Art Production Facilities
Equipped with advanced automated molding and kiln sintering technologies, our factory ensures consistent product quality and precise control over the manufacturing process.
Sales Market
Our products are widely distributed across mainland China and have successfully entered international markets, including Japan, India, and Russia, supported by stable, long-term partnerships with renowned enterprises.
Our Certificate
We maintain high standards of quality through rigorous compliance with ISO 9001, guaranteeing reliability and consistency in every product we manufacture.
Service Advantages
From pre-sale consultation to post-sale support, we offer tailored solutions, real-time production updates, and efficient problem resolution to ensure smooth cooperation at all stages.
A ceramic tube insulator is a cylindrical structure made of ceramic material that is designed to provide electrical insulation and thermal resistance in various applications. Ceramic materials are chosen for their high resistance to heat and electricity, making them suitable for use in environments where there are extreme temperature fluctuations, high voltage, or a need for reliable insulation.
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Tech-data |
Test conditions |
Unit |
95%AL2O3 |
99.5%AL2O3 |
|
Density |
|
G/cm3 |
>3.60 |
3.7 |
|
Bending Strength |
|
N/m3 |
2.24×108 |
>2.74×108 |
|
Linear Expansibility |
20~1000C |
×10-6/0C |
- |
- |
|
20~5000C |
×10-6/0C |
6.2~7.5 |
6.2~7.5 |
|
|
20~8000C |
×10-6/0C |
6.5~8.0 |
6.5~8.0 |
|
|
Specific Inductive |
1MH2 |
|
9~10 |
9~10.5 |
|
10GMH2 |
|
9~10 |
- |
|
|
Dielectric Loss Value |
1MH2 |
×10-6 |
≤4 |
≤1.5 |
|
Tangent |
10GMH2 |
×10-6 |
≤10 |
- |
|
Volume Resistance |
1000C |
Ω·cm |
>1013 |
>1014 |
|
3000C |
Ω·cm |
>1016 |
>1012 |
|
|
5000C |
Ω·cm |
108 |
- |
|
|
Breakdown Strength |
|
KV/mm |
15 |
- |
|
Thermal Conductivity |
200C |
W/m·K |
25.2 |
29.2 |
Exceptional Durability: Ceramics are inherently hard and resistant to wear, abrasion, and mechanical stress, making them ideal for long-term deployment in harsh environments.
High-Temperature Resistance: Most ceramic materials can operate continuously at temperatures above 1200°C without degrading, outperforming plastics and polymers.
Chemical Inertness: Many ceramics resist corrosion from strong acids, alkalis, solvents, and other aggressive chemicals, which is essential in chemical processing and industrial settings.
Electrical Insulation: With high dielectric strength and low electrical conductivity, they effectively isolate high-voltage components and prevent short circuits.
Environmental Sustainability: Made primarily from naturally occurring minerals like clay, feldspar, and alumina, ceramic insulators are non-toxic and recyclable, contributing to greener manufacturing practices.
Design Flexibility: Available in a wide range of shapes—including tubes, rods, discs, and custom geometries—they can be tailored to fit specific engineering requirements.
Alumina Ceramic Tubes
Made from high-purity aluminum oxide (Al₂O₃), these tubes are among the most widely used ceramic insulators due to their superior electrical insulation, high thermal conductivity, and excellent mechanical strength.
Steatite Tubes
Composed of magnesium silicate, steatite ceramic tubes offer reliable electrical insulation at a lower cost, making them ideal for general-purpose applications.
Porcelain Tubes
Manufactured from fired clay and silicate materials, porcelain insulators are one of the oldest and most established types in power transmission and outdoor electrical systems.
Zirconia Ceramic Tubes
Made from zirconium dioxide (ZrO₂), these high-performance tubes offer exceptional toughness and thermal stability, often used in demanding industrial and engineering environments.
Titania Ceramic Tubes
Composed of titanium dioxide (TiO₂), titania-based ceramics are less common but valued for their unique electrical and thermal properties, particularly in composite formulations.
Applications of Ceramic Tube Insulators
High-Voltage Equipment
Ceramic tube insulators are often used in high-voltage applications like power transmission lines, insulators for overhead electrical cables, and insulators for circuit breakers and transformers.
01
Heating Elements
In industrial heating systems, ceramic tube insulators can be used to house heating elements, providing electrical insulation while efficiently transferring heat to the surrounding environment.
02
Furnaces And Kilns
Ceramic tube insulators can be used to create a protective barrier around heating elements in furnaces and kilns, maintaining temperature stability and preventing heat loss.
03
Electronic Components
They are used in electronics to isolate and protect components from electrical interference and environmental factors.
04
Scientific And Laboratory Equipment
In various laboratory setups, ceramic tube insulators can be used to contain high-temperature reactions or as insulators for sensitive electronic components.
05
Alumina (Al₂O₃): Offers superior electrical insulation, excellent chemical resistance, and high mechanical strength. Ideal for high-voltage and corrosive environments.
Steatite: A cost-effective magnesium silicate ceramic with good dielectric properties and moderate thermal resistance. Best suited for general-purpose electrical insulation up to 1000°C.
Zirconia (ZrO₂): Provides the highest mechanical toughness and thermal shock resistance, making it suitable for extreme thermal cycling and structural applications.
Surface Finish of Ceramic Tube Insulator
Polished finish
Reduces surface charge accumulation and improves dielectric performance. Easier to clean and maintain.
Matte or textured finish
Enhances grip in mechanical assemblies and reduces slippage under vibration.
Glazed surfaces
Provide moisture resistance and prevent tracking in high-humidity environments.
Installation Guidelines for Ceramic Tube Insulators
Pre-Installation Preparation: Gather necessary tools including non-conductive gloves, insulated measuring tape, mounting clamps, and alignment fixtures. Verify the insulator’s dimensions match the design specifications.
Site Inspection: Ensure the installation area is free from moisture, debris, and live electrical components. Confirm that support structures are stable and correctly aligned.
Handling & Placement: Handle ceramic tubes with care using padded tools. Avoid dropping or applying lateral pressure. Position the insulator gently into place without forcing it.
Mounting: Use non-metallic or ceramic-compatible fasteners (e.g., stainless steel with insulating sleeves). Torque clamps to manufacturer specifications to prevent cracking.
Alignment Check: Verify axial and angular alignment using laser levels or gauges. Misalignment can cause uneven stress distribution and early failure.
Electrical Reconnection: Only reconnect power after confirming no ceramic fragments or conductive debris remain in the system.
Final Testing: Perform insulation resistance tests (megger test) and visual inspection under load to confirm proper function.
Maintenance and Repair Procedures
Visual Inspections
Conduct routine checks for cracks, chips, discoloration, or surface tracking—especially in high-temperature or high-humidity environments.
Cleaning Protocol
Clean insulators with a soft brush or dry cloth. For stubborn deposits, use isopropyl alcohol or mild detergent; never use abrasive cleaners or high-pressure water jets.
Environmental Monitoring
Track exposure to thermal cycling, corrosive gases, or mechanical vibration, which can accelerate aging.
Damaged Insulators
Any visible crack or chip compromises structural integrity and dielectric performance. Replace immediately with the same material grade and dimensions.
Root Cause Analysis
After a failure, investigate whether the damage resulted from thermal stress, mechanical overload, improper installation, or contamination.
Replacement Strategy
Always use OEM-specified or equivalent-grade ceramic insulators. Mixing materials can lead to galvanic corrosion or mismatched expansion coefficients.
FAQ
As one of the leading ceramic shell manufacturers and suppliers in China, we warmly welcome you to wholesale bulk high-grade ceramic shell made in China here and from our factory. All customized products are with high quality and competitive price. Contact us for pricelist and free sample.
Ceramic Tube Insulator, 40W Ceramic Case, 10W Ceramic Case