Mineral insulated thermocouple cable
Get access to our extensive stock (over 500,000 meters) of Okazaki mineral insulated thermocouple cable. In our warehouse we stock type K, J, T, N, E, S, R, B thermocouple cable sheathed with material varying from Inconel to different types of stainless steel. The more exotic sheath materials, such as Pt10%Rh, Haynes, and Pyrosil are also available.
Product summary
- Guaranteed tolerance class 1, AMS 2750 F or ASTM E230 special limits.
- Full traceability with 3.1 material certificates.
- Fast response time
- Wide variety of MIMS cables available from stock.
- High quality MI thermocouple cable of Japanese origin
Superior performance for extreme conditions
World renown quality of Okazaki mineral insulated cable
Kamet’s mineral insulated cables are produced by our long-standing partners, two world class manufacturers: Okazaki manufacturing company and ARi industries. Okazaki manufacturing company is the largest mineral insulated cable manufacturer in the world. With six factory locations, Okazaki offers a large production capacity and has positioned itself as a leader in the industrial temperature sensor market, holding significant market share.
ARi industries focusses on special types of MI cable with refactory metals, custom made heating solutions with MI cable and exotic thermocouples.
Under the brand name AerOpak®, Okazaki’s mineral insulated metal sheathed cable is produced. AerOpak® is designed to withstand high pressure and can be used for a wide temperature range from -200°C to 1260°C. It is thus ideal for hazardous and high temperature environments across a wide range of industries. Every single coil or each batch of AerOpak® mineral insulated thermocouple cable is calibrated to ensure IEC60584 class 1, ASTM E230 special limits or AMS2750 E/F. Full traceability is guaranteed.

Available types of mineral insulated TC cable
Quick overview of MI TC cables Kamet can supply
+ stock insightType K
NiCr-Ni thermocouples -270°C to +1260°CType N
NiCrSil-NiSil thermocouple -270°C to +1260°CType J
Fe-CuNi thermocouple -210°C to +750°CType T
Cu-CuNi thermocouple -270°C to +370°CType E
NiCr-CuNi thermocouple -270°C to +900°CType S
PT10%RH-PT thermocouple -50°C to +1600°CType R
Pt13%Rh-Pt thermocouple -50°C to +1450°CType B
PT30%RH-PT6%RH thermocouple 600°C to 1700°CWhy choose Kamet for your thermocouple MI cable?
- Quality and reliability: our products are recognized for their high quality, ensuring precise temperature measurement and long-lasting durability.
- Technical expertise: our experienced team, in partnership with the manufacturer, provides valuable insights and tailored solutions.
- Customization: we offer custom thermocouple cable lengths, diameters, and materials to fit your needs.
- One-stop shop: we stock a wide range of cables for different temperatures and industrial uses, along with other necessary products for making temperature sensors, such as thermocouple connectors, transmitters and bayonet caps.
- Customer service and support: our multilingual team (Dutch, English, German, French, Greek, Spanish, Turkish) ensures clear communication and quick responses. Furthermore we offer an online portal to provide 24/7 access to our stock and prices.
- Industry experience: we have a strong reputation and proven track record, making us a reliable partner.
- Full transparency: we provide full transparency about our product origins and always include certifications.
Download the MI thermocouple cable brochure
Consult our mineral insulated thermocouple cable brochure for information about our product codes and materials.
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Advantages of MI thermocouple cables over other conventional thermocouple cables
- Wide temperature range
The Okazaki MI thermocouple cables Kamet supplies, can be used for a wide temperature range from -269°C to 1,260°C. Conventional thermocouple cables have a much smaller temperature range. An even broader temperature range can be achieved by our high temperature thermocouples, produced by ARi Industries. - Excellent uniformity
Okazaki manufactures long MI cables with inorganic insulators that are solidly packed with a specific unique technology. - Easy handling
The MI thermocouple cables have a bending radius of at least 2 times longer than the outer diameter of the MI cable. This way, the MI cables can be easily installed at various sites with bends. The cables can be wound in coils easily.
- Longer product life time
Due to the insulation of chemically stable material Magnesium Oxide, the MI cables have much longer life times than conventional cables. Due to the compact structure of the insulation, the thermocouple wires are airtight, resulting in a longer life time as well. Furthermore, the outer sheath material is designed to survive in hazardous environments. - Mechanical strength
The Okazaki MI cables can be used at the most demanding environments. The outer sheath & compact magnesium oxide insulation provides protection for corrosive atmospheres and vibration. - Insulation material
Okazaki uses magnesium oxides for the standard MI cables. However, we can also supply aluminum oxide (Al2O3) and silicon dioxide (SiO2) for special purposes.
CableStream CS-1100
Clean cutting an MIMS cable can be a time-consuming process due to its construction. To efficiently cut MI cable coils, we offer the CableStream CS-1100. Launched in 2023, this machine revolutionizes production efficiency with its user-friendly interface, precise burr-free cutting, and extensive handling range.
Its advanced software and robust design ensure high-quality output, reducing the need for skilled labor and simplifying maintenance. Explore how the CS-1100 can enhance your manufacturing process.