Introduction
As a manufacturer of porcelain spool insulators, we are proud to offer a high-quality, reliable, and long-lasting product for merchants across the world. Our porcelain spool insulators are designed to provide superior electrical insulation and mechanical support for overhead power lines and transmission systems.
Our porcelain spool insulators are made using the finest quality materials and manufacturing processes, ensuring that each insulator is of the highest standard. In this product introduction, we will discuss the features and benefits of our porcelain spool insulators, and explain why merchants should choose our product for their electrical insulation needs.
Features of Porcelain Spool Insulators
Porcelain spool insulators are a type of electrical insulator widely used in overhead power lines and transmission systems. Our porcelain spool insulators have the following features:
1. High Electrical Strength
The most important feature of our porcelain spool insulators is their high electrical strength. This property allows the insulator to withstand high voltage levels without breaking down. Our insulators are designed to meet or exceed the international standards for electrical strength, ensuring reliable and safe functionality.
2. Insulation Resistance
Our porcelain spool insulators have excellent insulation resistance, which means they can withstand a significant amount of current without losing their ability to insulate. This property is essential for the safety and functionality of overhead power lines and transmission systems.
3. Mechanical Strength
In addition to electrical strength, our porcelain spool insulators have high mechanical strength. They are designed to withstand the weight of power lines and transmission systems and resist the effects of environmental factors such as wind, rain, and temperature changes.
4. Corrosion Resistance
Our porcelain spool insulators are made of high-quality porcelain, which makes them highly resistant to corrosion. This property is essential for ensuring the longevity of our insulators, even in harsh environmental conditions.
Benefits of Porcelain Spool Insulators
Our porcelain spool insulators offer numerous benefits to merchants who choose our product. Here are some of the key benefits:
1. Longevity
Our porcelain spool insulators are designed to last for decades, providing merchants with a reliable and long-lasting solution for their electrical insulation needs.
2. High Performance
Our porcelain spool insulators offer high performance in terms of electrical and mechanical strength, insulation resistance, and corrosion resistance, ensuring that power lines and transmission systems remain safe and operational.
3. Cost-effectiveness
Our porcelain spool insulators represent a cost-effective solution for electrical insulation needs. They are made of high-quality materials and can last for several decades, which saves merchants money in the long run.
4. Easy Installation
Our porcelain spool insulators are easy to install, making the installation process faster and more efficient. This can save merchants time, money, and resources.
Conclusion
In conclusion, our porcelain spool insulators are an excellent choice for merchants who need a reliable, high-quality, and long-lasting solution for their electrical insulation needs. Our insulators offer numerous benefits in terms of performance, longevity, cost-effectiveness, and ease of installation.
At our company, we take pride in our commitment to quality manufacturing, and we ensure that each porcelain spool insulator we produce meets or exceeds international standards. With our product, merchants can have peace of mind knowing that their power lines and transmission systems are safe and operational.
Name: porcelain spool insulator
Type: 53-3 porcelain spool insulator
Related type: 53-1, 53-2, 53-3, 53-4, 53-5
Voltage Range: 0.4kV~33kV
Standard: The ANSI standard 29.3
Graze colors of insulators: Brown or light gray
Mechanical failing load: 9kN,13kN,18kN,20kN,27kN and as per client’s request
Material: Alumina and silica porcelain
Application: Overhead lines and transmission lines
Porcelain spool insulators are mainly used to insulate and support the secondary conductors at the pole. A spool insulator is mounted to the pole using various clevis configurations and is compatible with all manufacturer's hardware designs.
Technical specifications:

ANSI Class | 53-1 | 53-2 | 53-3 | 53-4 | 53-5 | |
Main Dimension (mm) | H | 54 | 76 | 81 | 76 | 105 |
D | 57 | 79 | 76 | 105 | 102 | |
d | 44 | 44 | 44 | 73 | 73 | |
d1 | 17.5 | 17.5 | 17.5 | 17.5 | 17.5 | |
R | 11 | 17.5 | 11 | 16 | 11 | |
Transverse strength (kN) | 9 | 13 | 118 | 20 | 27 | |
Power frequency flashover voltage (kV) | Dry | 20 | 25 | 25 | 25 | 35 |
Our Services:
1. Rich experience in ODM and OEM
2. Excellent One-stop service
3. High Quality Precision Customized forging & Casting services
4. The lowest price
5. Strict quality control
6. We can manufacture it according to customers requirements.
FAQ:
1 Q: When can I get the price?
A: Usually we quote within 8 hours after we get your inquiry.
2.Q: What's your MOQ?
A: In Generally,the MOQ is 100pcs,If we have the products in stock, it will be no MOQ. If we need to produce, we can discuss the MOQ according to customer's exact situation
3.Q: What's is your shipping service?
A: We can provide services for vessel booking, goods consolidation, customs declaration, shipping documents preparation and delivery bulk at the shipping port.
4.Q: How long is your delivery time?
A: The general EXW delivery time is 35-45 days after order date. Anther, if you need is FOB ,CIF or CFR delivery time, we will advise after discuss according to your order exact situation and our production schedule.




Why choose us?
- We offer flexible payment options to make it easy for our customers to order our products.
- Our company has formed cooperative relationship with many famous brands to provide them with high-quality products, services and solutions.
- We have a strict code of ethics and business practices to ensure transparency and honesty in our dealings.
- Since our company has been engaged in the research and development of Porcelain Spool Insulator for many years, we have accumulated a lot of experience to facilitate users to choose high-quality products.
- We use eco-friendly materials and production processes to reduce our environmental impact.
- In the current situation of increasingly fierce economic and social competition, the company has to accelerate the transformation and development across the board and take the lead in getting out of the predicament.
- Our LV insulator products are backed by a team of experts who can provide technical support and advice.
- Integrity and trustworthiness is the embodiment of our contractual spirit and high-quality performance, which is our lifeline. We take sincerity and trustworthiness as the foundation of our business development and devote ourselves to creating an atmosphere of internal and external integrity.
- Our LV insulators are made of high-quality materials and meet international quality standards.
- With good credit and excellent service, we have established long-term cooperative relationship with many enterprises.
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