
Our Type S Mineral Insulated (MI) Thermocouple Cable is engineered for precision in high-temperature environments, specifically tailored for the glass and semiconductor industries. Made with platinum-rhodium (positive) and pure platinum (negative) alloys, this cable delivers exceptional accuracy and stability from 0°C to 1450°C. The mineral insulation, typically high-purity magnesium oxide (MgO), provides outstanding durability and resistance to thermal shock, making it ideal for demanding applications like glass furnaces and semiconductor wafer processing. With a sensitivity of about 10 µV/°C, our Type S MI cable ensures you get reliable, repeatable measurements in even the toughest conditions.
The thermocouple market is growing steadily, driven by the need for precise temperature control in industries like glass manufacturing, semiconductors, and metallurgy. Market trends suggest a CAGR of around 5.2% through 2030, with high-temperature thermocouples like Type S gaining popularity due to advancements in industrial automation and quality control. The glass industry relies heavily on accurate temperature monitoring to ensure consistent product quality, while the semiconductor sector demands ultra-precise sensors for wafer fabrication and thermal processing. Mineral-insulated cables are increasingly favored for their ability to withstand extreme heat, oxidation, and chemical exposure, positioning our Type S MI cable as a critical tool for modern manufacturing.
Electrical Performance
| Parameter | Low-Voltage Cable (0.6/1kV) | Medium-Voltage Cable (6~35kV) | High-Voltage Cable (110kV Min) |
| Rated Voltage (U₀/U) | 0.6/1 kV | 6/10-26/35 kV | ≥110 kV |
| Insulation Resistance (MΩ·km) | ≥100 | ≥200 | ≥500 |
| AC Voltage Withstand (kV) | 3.5 | 21~52 | ≥160 |
| DC Resistance of Conductor (Ω/km) | Compliance to IEC standards | Compliance to IEC standards | Compliance to IEC standards |
Mechanical Performance
| Performance Indicator | Steel Tape Armored | Steel Wire Armored | Aluminum Tape/Stainless Steel Armored |
| Tensile Strength (N/mm²) | 300-500 | 400-600 | 150-250 |
| Compression Performance (N) | ≥3000 | ≥1500 | ≥1000 |
| Minimum Bend Radius | 6×Cable Outer Diameter | 10×Cable Outer Diameter | 8×Cable Outer Diameter |
Thermal Performance
| Working Temperature Range (°C) | -40 to +90(Standard Insulation) |
| Short-Circuit Temperature (5s) (°C) | 160~250(depending on material) |
| Flame Retardant Performance | Compliace to IEC 60332 Standard |
Our Type S MI Thermocouple Cable is a perfect fit for high-temperature, high-precision environments:
Glass Manufacturing: Monitors and controls temperatures in furnaces and molten glass processes for consistent quality.
Semiconductor Industry: Ensures precise thermal management during wafer fabrication and deposition processes.
Metallurgy: Tracks high temperatures in steel and alloy production for optimal material properties.
Ceramics: Supports accurate temperature readings in kilns and ceramic processing.
Research Labs: Ideal for high-temperature experiments requiring stable and reliable measurements.
Energy: Used in high-temperature reactors and power generation systems for safety and efficiency.
Its high accuracy and resistance to oxidation make it a go-to choice for industries where precision and durability are non-negotiable.
Comparison Parameters Table
Parameter | Type S MI Thermocouple Cable | Other Thermocouple Cables |
|---|---|---|
Temperature Range | 0°C to 1450°C | Varies (e.g., Type K: -270°C to 1260°C) |
Accuracy (Class 1) | ±1.0°C or 0.25% (0°C to 1100°C) | Varies (e.g., Type K: ±1.5°C or 0.4%) |
Sensitivity | ~10 µV/°C | Varies (e.g., Type K: ~41 µV/°C) |
Insulation | High-purity MgO | PVC, PFA, or fiberglass (less durable) |
Durability | High (resists oxidation, thermal shock) | Moderate to high (depends on type) |
Bending Radius | 2x sheath diameter | Varies, often less flexible |
Applications | Glass, semiconductors, metallurgy | General-purpose, broader range |
Oxidation Resistance | Excellent (platinum-based) | Varies (e.g., Type K less resistant) |
Our Type S MI Thermocouple Cable sets the standard for high-temperature applications. We use top-grade platinum-rhodium and platinum alloys paired with high-purity MgO insulation, ensuring unmatched accuracy and longevity. Unlike others, we provide full traceability with 3.1 material certificates and offer custom configurations, including various sheath materials and diameters (0.5mm to 8.0mm), to meet your exact needs. Our cables are designed for easy installation with a bending radius of just twice the sheath diameter, saving you time and hassle. We also back our products with 24/7 technical support and access to our online stock portal, ensuring you’re never left in the lurch. While some may skimp on calibration or insulation quality, we adhere to IEC 60584 Class 1 standards, delivering precision you can trust.
Our Advantages
Superior Accuracy: Achieves ±1.0°C or 0.25% accuracy in the 0°C to 1100°C range, with options for tighter tolerances.
High Durability: MgO insulation resists oxidation, thermal shock, and chemical exposure in extreme environments.
Customization Options: Tailored lengths, diameters, and sheath materials (e.g., Inconel or stainless steel) to fit your setup.
Ease of Installation: Flexible design with a tight bending radius for complex installations.
Global Standards Compliance: Meets IEC 60584 Class 1 and ASTM E230 standards for consistent, reliable performance.
Robust Support: Multilingual technical support and real-time stock access for seamless project planning.




About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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FAQs
What is a Type S MI Thermocouple Cable?
A Type S MI Thermocouple Cable is a high-precision temperature sensor with platinum-rhodium and platinum conductors, insulated with magnesium oxide, designed for high-temperature applications.What temperature range does it cover?
It operates reliably from 0°C to 1450°C, ideal for glass and semiconductor industries.Which industries use Type S MI cables?
Glass manufacturing, semiconductors, metallurgy, ceramics, energy, and research labs commonly use these cables.How accurate is the Type S MI cable?
It offers ±1.0°C or 0.25% accuracy from 0°C to 1100°C, with options for enhanced precision.Why choose mineral-insulated cables?
MgO insulation provides superior durability, thermal shock resistance, and stability compared to standard cables.Can it be customized?
Yes, we offer custom lengths, diameters, and sheath materials to match your specific requirements.Is it suitable for harsh environments?
Absolutely, its MgO insulation and robust sheath resist oxidation, heat, and chemical exposure.What standards does it meet?
Our cables comply with IEC 60584 Class 1 and ASTM E230 standards for global reliability.
Why Choose Us?
Our Type S MI Thermocouple Cable is built to deliver precision and reliability in the most demanding high-temperature environments. With top-tier materials, customizable options, and strict adherence to global standards, we provide a solution that’s both durable and easy to integrate. Whether you’re running a glass furnace or a semiconductor cleanroom, our cables give you the accuracy and peace of mind to keep your operations on track.