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High-Temperature Mineral Insulated Metal Sheathed Cable for Extreme Heat Environments

Categories Mineral Insulated Metal Sheathed Cable
Brand Name: LEADKIN
Model Number: LK-K
Certification: ISO9001, IATF16949, CE
Place of Origin: NINGBO CHINA
MOQ: 50M
Price: negotiation
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 1,000,000M/year
Delivery Time: 2-7 working days
Packaging Details: 70*70*8cm Carton
Core: 2,3,4,6
Insulation: MgO
Temperature Range: 200℃-1000℃
Accuracy: Class I、II、III
Outside Dia: 0.5-12.7mm
Package: Carton. Pallet
Function: temperature test
Theory: Temperature Sensor
Cable Length: 1-5m or Customized
Thermocouple Type: K/N/E/J/T/S/R/B
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High-Temperature Mineral Insulated Metal Sheathed Cable for Extreme Heat Environments

Quick Details:

Type: K/N/E/J/T/S/R/B

Place of Origin: Zhejiang, China (Mainland)

Accuracy: I-0.4%t, II-0.75%t, III-1.5%t

Core number: 2,3,4,6

Inorganic mineral insulating lead material: Ni, Cu

Insulator: 99.6% high purity MgO


Type for Sheath Wire Type K:

Product NameCodeTypeShaeth MaterialOutside Dia.Temperature
NiCr-NiSi /NiCr-NiAlKKKSS304 SS3160.5-1.0400
1.5-3.2600
4.0-8.0800
SS310 Inconel6000.5-1.0500
1.5-3.2800
4.0-6.4900
8.0-12.71000
NiCrSi-NiSiNKNSS304 SS3160.5-1.0400
1.5-3.2600
4.0-8.0800
SS310 Inconel6000.5-1.0500
1.5-3.2800
4.0-6.4900
8.0-12.71000
NiCr-KonstantanEKESS304 SS3160.5-1.0400
1.5-3.2600
4.0-8.0800
Fe-KonstantanJKJSS304 SS3160.5-1.0400
1.5-3.2600
4.0-8.0800
Cu-KonstantanTKTSS304 SS3160.5-1.0400
1.5-3.2600
4.0-8.0800
RhPt10-PhSKSInconel6006.0-12.71100

Different temperature measuring media and service conditions have an impact on the service life and temperature range of armored thermocouples, the data in the table is only recommended data.


Accuracy for Sheath Wire Type K

TypeClass IClass II
AccuracyTemp.RangeAccuracyTemp.Range
K±1.5℃-40~375℃±2.5℃-40~375℃
±0.4%375℃-1000℃±0.75%375℃-1000℃
N±1.5℃-40~375℃±2.5℃-40~375℃
±0.4%375℃-1000℃±0.75%375℃-1000℃
E±1.5℃-40~375℃±2.5℃-40~375℃
±0.4%375℃-800℃±0.75%375℃-800℃
J±1.5℃-40~375℃±2.5℃-40~375℃
±0.4%375℃-800℃±0.75%375℃-800℃
T±0.5℃-40~125℃±1.0℃-40~125℃
±0.4%125℃-350℃±0.75%125℃-350℃
S0-1100℃±1.0℃0-1100℃±1.5℃
Mineral insulated (MI) cables work based on several key principles related to their construction and the properties of their materials. The following is a detailed explanation:

Construction Overview


  • Conductor: MI cables typically use a copper or aluminum conductor at the core. This conductor is responsible for carrying the electrical current. Copper is often preferred for its high electrical conductivity, which allows for efficient transmission of electricity with low resistance and minimal power loss.
  • Insulation: The conductor is surrounded by a layer of mineral insulation, usually made of magnesium oxide (MgO). MgO has excellent thermal and electrical insulation properties. It provides a high level of electrical resistance, preventing the current from leaking out and ensuring that it remains within the conductor.
  • Sheath: The outermost layer is a metal sheath, commonly made of copper, stainless steel or aluminum. The sheath serves multiple purposes. It provides mechanical protection to the cable, safeguarding the inner components from physical damage, such as impacts, abrasion and moisture ingress.

Product Pictures:


Company Information:

A. Main Products



B. Package

We add heat shrink tubing and plastic film to make sure high insulated resistance.

Except marking notes, we also have pass card and test report for every coil cable.


C. Mi cable Production line

We have high - quality professional products, as well as advanced product lines and equipments. All of the products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.Along the increasing market demands, we continuously satisfy customers by updating products to improve prouduction systems, improve quality.



Support and Services:

Our Mineral Insulated Thermocouple Cables are designed to provide accurate temperature measurements even in high-temperature environments. With a variety of options for thermocouple types, sheath materials, and insulation materials, we offer a custom solution to fit your specific needs. Our cables are also highly durable and resistant to vibration and shock.

We provide technical support and services for our Mineral Insulated Thermocouple Cables, including:

  • Selection guidance for thermocouple type, sheath material, and insulation material
  • Assistance with cable installation and maintenance
  • Troubleshooting and problem-solving
  • Repair and warranty services

Our team of experts is dedicated to ensuring the highest level of customer satisfaction and providing reliable solutions for your temperature measurement needs.


Order Notice:

1. Accurate quotation.

2. Confirm the price, trade term, lead time, payment term etc.

3. LEADKIN sales send the Proforma Invoice with LEADKIN seal.

4. Customer arranges the payment for deposit and sends us bank slip.

5. Middle Production-send photos to show the production line which you can see your products in . Confirm the estimated delivery time again.

6. End Production-Mass production products photos.

7. Clients make payment for balance and LEADKIN ships the goods. Inform the tracking number and check the status for clients.

8. The order is finished perfectly when you receive the goods and get satisfied with them .

9. Feedback to LEADKIN about Quality , Service, Market Feedback & Suggestion. And we will do better .


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