A Mineral Insulated Thermocouple (or MI Thermocouple) is a high-performance temperature sensor designed for demanding industrial applications.
Jaye Heater Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of mineral insulated thermocouple in China, also supports custom service. Welcome to wholesale high quality mineral insulated thermocouple at competitive price from our factory.
Mineral Insulated Thermocouple is constructed by compacting highly pure magnesium oxide (MgO) powder inside a metal sheath (typically stainless steel or Inconel) to fully insulate one or more pairs of thermocouple wires.
This unique construction makes it exceptionally robust, resistant to vibration, corrosion, and high pressures. MI Thermocouples are the go-to choice for applications where standard armored thermocouples would fail, offering superior accuracy and longevity in extreme environments. They can be supplied as a bare sensing element or as a complete assembly with a connection head and terminal block.
| Parameter | Description & Options |
| Thermocouple Type | J, K, T, E (Standard); R, S, B (Noble); N (High Temp) |
| Sheath Material | 304, 316 Stainless Steel (Common); Inconel 600 (High-Temp); Other Alloys |
| Sheath Diameter | Typically from 0.5mm (0.020") to 8mm (0.315") |
| Insulation Material | High-Purity Magnesium Oxide (MgO) |
| Temperature Range | Varies by type; e.g., Type K: -200°C to +1200°C / -328°F to +2192°F |
| Accuracy | Standard: ± 2.2°C or ± 0.75% |
| Termination | Exposed or grounded junction, Insulated junction, Ungrounded junction |
| Lead Wire & Connector | Standard or custom high-temperature wire, with matching plug connector |
| Overall Length | Fully customizable to your specific requirements |
Exceptional Durability & Mechanical Strength:
The solid metal sheath and compacted MgO make the thermocouple highly resistant to vibration, shock, and physical damage. It can be bent to shape without compromising performance, allowing for easy installation in tight spaces.
High Response Speed:
The excellent thermal conductivity of the Magnesium Oxide insulation allows for fast heat transfer from the sheath to the thermocouple junction, resulting in a very quick response time to temperature changes.
Superior Performance in High Pressure & Hostile Environments:
The hermetic seal of the sheath protects the internal wires from moisture, chemicals, and corrosive atmospheres. They are ideal for use in autoclaves, reactors, and other high-pressure systems.
Wide Temperature Range:
Depending on the sheath and thermocouple type, MI Thermocouples can operate in a range from cryogenic temperatures up to over 2000°C, making them incredibly versatile.
Flexibility and Customization:
Despite their robustness, MI cables can be bent and formed. They are also highly customizable in terms of length, diameter, junction type, and termination, ensuring a perfect fit for any application.
Whether you need a rugged sensor for a harsh industrial environment or a fast-response probe for a critical R&D project, a Mineral Insulated Thermocouple is the reliable solution. Contact us today to discuss your application and get a customized quote.
Hot Tags: mineral insulated thermocouple, China, manufacturers, suppliers, factory, wholesale, custom, price, electric, high quality, BBQ NTC Temperature Sensor
