
Our Type R/S Mineral Insulated (MI) Thermocouple Cable with ceramic protection is built for high-precision temperature monitoring in extreme kiln environments. Using platinum-rhodium (Type R: 13% Rh, Type S: 10% Rh) and pure platinum alloys, this cable delivers top-tier accuracy from 0°C to 1600°C. The high-purity magnesium oxide (MgO) insulation and ceramic outer sheath provide unmatched durability, resisting thermal shock, oxidation, and chemical corrosion. With a sensitivity of around 10–12 µV/°C, it’s perfect for applications like ceramic kilns, glass production, and high-temperature furnaces where precision is critical.
Industry Analysis
The thermocouple market is on a solid growth trajectory, with a projected CAGR of 5.5% through 2030, driven by demand for reliable temperature sensors in industries like ceramics, glass, and metallurgy. High-temperature applications, particularly in kiln monitoring, are seeing increased focus due to advancements in material processing and stricter quality standards. Mineral-insulated thermocouples with ceramic protection are gaining traction for their ability to withstand extreme heat and harsh conditions while maintaining accuracy. The rise of automated manufacturing and real-time monitoring systems is also pushing demand for robust, high-precision solutions like our Type R/S MI cable, making it a key player in modern industrial processes.
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 R/S MI Thermocouple Cable excels in high-temperature, high-precision settings:
Ceramic Kilns: Ensures accurate temperature control for consistent firing and quality ceramics.
Glass Manufacturing: Monitors molten glass and furnace conditions for optimal production.
Metallurgy: Tracks high temperatures in steel and alloy processing for precise material properties.
Heat Treatment: Supports uniform temperature monitoring in industrial furnaces.
Aerospace: Used in high-temperature testing for components and materials.
Research Labs: Ideal for experiments requiring stable, high-temperature measurements.
The ceramic protection enhances durability, making it a reliable choice for environments with extreme heat and chemical exposure.
Company Comparison
Our Type R/S MI Thermocouple Cable stands out for its precision and resilience. We use premium platinum-rhodium and platinum alloys with high-purity MgO insulation and a robust ceramic sheath, ensuring long-term stability and accuracy. Unlike others, we offer full traceability with 3.1 material certificates and customizable options, including sheath diameters (0.5mm to 8.0mm) and lengths tailored to your setup. Our cables are designed for easy installation with a bending radius of twice the sheath diameter, even in tight kiln configurations. With 24/7 technical support and an online stock portal, we make sure you’re covered. While some may compromise on insulation or calibration, we stick to IEC 60584 Class 1 standards, delivering unmatched reliability for kiln monitoring.
Comparison Parameters Table
Parameter | Type R/S MI Thermocouple Cable | Other Thermocouple Cables |
|---|---|---|
Temperature Range | 0°C to 1600°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 | ~10–12 µV/°C | Varies (e.g., Type J: ~52 µV/°C) |
Insulation | High-purity MgO + ceramic sheath | PVC, PFA, or fiberglass (less durable) |
Durability | High (resists thermal shock, oxidation) | Moderate to high (depends on type) |
Bending Radius | 2x sheath diameter | Varies, often less flexible |
Applications | Kilns, glass, metallurgy | General-purpose, broader range |
Oxidation Resistance | Excellent (platinum-based) | Varies (e.g., Type K less resistant) |
High Precision: Offers ±1.0°C or 0.25% accuracy from 0°C to 1100°C, with tighter tolerances available.
Extreme Durability: Ceramic sheath and MgO insulation resist thermal shock, oxidation, and corrosion.
Customization: Tailored lengths, diameters, and sheath materials to fit specific kiln requirements.
Easy Installation: Flexible design with a tight bending radius for seamless integration.
Global Standards Compliance: Meets IEC 60584 Class 1 and ASTM E230 standards for consistent performance.
Reliable Support: Multilingual technical support and real-time stock access for efficient project management.




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 R/S MI Thermocouple Cable?
A Type R/S MI Thermocouple Cable is a high-precision temperature sensor with platinum-rhodium and platinum conductors, insulated with magnesium oxide and protected by a ceramic sheath, designed for high-temperature kiln monitoring.What temperature range does it cover?
It operates reliably from 0°C to 1600°C, ideal for high-temperature applications.Which industries use Type R/S MI cables?
Ceramics, glass manufacturing, metallurgy, heat treatment, aerospace, and research labs.How accurate is the Type R/S MI cable?
It provides ±1.0°C or 0.25% accuracy from 0°C to 1100°C, with options for enhanced precision.Why choose a ceramic-protected MI cable?
The ceramic sheath and MgO insulation offer superior resistance to thermal shock, oxidation, and chemical corrosion.Can it be customized?
Yes, we provide custom lengths, diameters, and sheath materials to meet your specific needs.Is it suitable for extreme environments?
Absolutely, its ceramic protection and MgO insulation ensure durability in high-heat and corrosive conditions.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 R/S MI Thermocouple Cable with ceramic protection is designed to deliver precision and durability in the harshest kiln environments. With high-quality materials, customizable options, and strict adherence to global standards, we provide a solution that’s reliable and easy to work with. Whether you’re firing ceramics or processing glass, our cables ensure accurate temperature monitoring to keep your operations running smoothly.