Mineral Insulated Cable

Fireproof cable, often called mineral cable or MI cable abroad and “mineral insulated cable” in China, utilizes magnesium oxide as its insulation. It’s notable for its resistance to high temperatures, being fireproof, and explosion-proof. It operates consistently at 250°C and can briefly withstand temperatures up to 1000°C.

CHIMAG Mineral Cable Insulation MgO Powder

The KF series represents fire-resistant (mineral) cable-grade magnesium oxide. It’s categorized into medium and high-grade types based on insulation needs. Primarily used for insulation and temperature resistance, it’s fit for various fireproof cables, allowing operation up to 1300°C with moisture resistance. Particle compositions can be tailored to customer applications.

See More Magnesium Oxide Product Types

Magnesium oxide comes in many types and uses. For many years, CHIMAG has focused on researching and manufacturing magnesium oxide if you need other categories of magnesium oxide. Please contact us, and I will get back to you as soon as possible.

China's leading magnesium oxide manufacturer and supplier

Let CHIMAG help you with your magnesium oxide powder needs. We use only the best materials and employ innovative production techniques.

A Quick Self-Nomination, why CHIMAG?

Since 2007, CHIMAG has provided high-quality magnesium oxide powder to dozens of cable factories. Our extensive experience and expertise enable us to create industry-leading products. Our commitment to producing high-quality magnesium oxide powder has made us a trustworthy manufacturer in China. We specialize in electrical grade magnesium oxide powder, but we can meet any magnesium oxide powder requirement.

Advanced processing technology: Our magnesium oxide is treated with silicone oil and calcined twice at high temperature in a rotary kiln, which improves its high temperature resistance and thermal conductivity.

Excellent value for money: Advanced production technology and professional equipment greatly reduce our production costs, providing us with the most competitive prices.

Trustworthy Customer Service: Our customer service stands apart. When you call us, you’ll always get help from professionals who can provide expertise and meet your unique requirements.

Frequently Asked Questions

We’ve put together a list of frequently asked questions about electrical grade magnesium oxide. If you have further questions, please feel free to contact our customer support. Our team of experts is ready to help.

How do I get a quote for Magnesium Oxide?

Please contact our customer service team for a quote. They are available 24/7. Just have your specifications ready, such as category, temperature resistance, etc.

Can I Get a Sample Before Place The Order?

Yes, we will provide you with a sample that you can physically evaluate. This will take 3 to 7 business days to complete. Custom orders may take longer.

What Is The Turnaround Time On My Order?

Yes, we will provide you with a sample that you can physically evaluate. This will take 3 to 7 business days to complete. Custom orders may take longer.

What is Your MOQ For The Order?

Our minimum quantity is usually 1 ton. Of course, if you feel it is not appropriate, you can communicate with us.

Have More Questions?

We are happy to answer any questions you may have about our products and company.

The role of Adding Magnesium Oxide to Mineral Cables

Magnesium oxide (MgO) is a common inorganic compound with a variety of applications. In the production of mineral insulated cables, adding magnesium oxide can play a certain role. This article will explain the role and reasons of adding magnesium oxide to mineral cables.

1. Adding magnesium oxide can improve the insulation performance of mineral cables.

Mineral cables are mainly used to transmit electrical energy, and good insulation performance is one of the key factors to ensure the normal operation of the cable.

Magnesium oxide has good insulation properties and can effectively isolate current and reduce cable leakage.

Therefore, adding an appropriate amount of magnesium oxide to mineral cables can improve the insulation performance of the cable and reduce the risk of cable failure.

2. Adding magnesium oxide can improve the fire resistance of mineral cables.

In some special environments, such as high temperature environments or flammable places, the fire resistance of cables is particularly important.

Magnesium oxide has good fire resistance and can maintain the structural integrity of cables at high temperatures and prevent the spread of fire.

Therefore, adding an appropriate amount of magnesium oxide to mineral cables can improve the fire resistance of the cable and improve the safety performance of the cable in case of fire.

3. Adding magnesium oxide can also improve the mechanical strength of mineral cables.

Mineral cables may be subject to certain pulling or squeezing forces during use.

If the mechanical strength of the cable is insufficient, problems such as breakage or extrusion deformation may easily occur. Magnesium oxide has high mechanical strength and can enhance the tensile and extrusion resistance of CPE cables.

Therefore, adding an appropriate amount of magnesium oxide to mineral cables can improve the mechanical strength of the cable and extend the service life of the cable.

4. Adding magnesium oxide can also improve the weather resistance of mineral cables.

Mineral cables usually need to be used in outdoor environments and will be affected by natural environmental factors such as sunlight, rain, and sand.

If the weather resistance of the cable is not good enough, problems such as aging and deterioration will easily occur.

Magnesium oxide has good weather resistance and can resist the erosion of natural environmental factors and extend the service life of cables.

Therefore, adding an appropriate amount of magnesium oxide to mineral cables can improve the weather resistance of the cable and enhance the cable’s anti-aging and anti-deterioration capabilities.

5. Adding magnesium oxide can improve the insulation performance, fire resistance, mechanical strength and weather resistance of mineral cables.

These effects are mainly due to the good insulation properties, fire resistance, mechanical strength and weather resistance of magnesium oxide itself.

Therefore, in the production of mineral cables, adding a reasonable amount of magnesium oxide can improve the performance of the cable and ensure the safe and reliable operation of the cable.