
High Temperature Leaf Type Thermocouple for Surface Measurement
High Temperature Leaf Thermocouple is a flat surface temperature sensor designed for accurate measurement on hot surfaces, dies, molds, heaters, hot plates and industrial machines. Its thin leaf-style sensing tip provides fast response and better surface contact in high-temperature applications up to 1100°C.
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A. Product Overview
High Temperature Leaf Thermocouple is specially designed for measuring temperature on flat, curved or hard-to-reach heated surfaces. It is commonly used where normal probe-type thermocouples cannot make proper surface contact.
The sensor uses a thin flat metal leaf at the sensing end, which helps it quickly detect surface temperature changes. This type of thermocouple is suitable for applications such as plastic machinery, die temperature measurement, mold temperature checking, hot plate monitoring, heater testing and industrial maintenance.
This thermocouple is available in K Type Simplex configuration with a temperature range of up to 1100°C. It can be supplied with customized wire length, leaf size, connector type and termination as per application requirements.
B. Working Principle
A High Temperature Leaf Thermocouple works on the thermoelectric principle. It contains two different metal wires joined at one end to form a temperature sensing junction.
When the leaf tip touches a hot surface, the temperature difference between the sensing junction and the reference end generates a small voltage signal. This voltage is then read by a temperature indicator, controller or measuring instrument and converted into a temperature value.
The flat leaf design improves surface contact, which helps in faster heat transfer and quicker temperature response compared to round probe sensors.
C. Why It Is Used
High Temperature Leaf Thermocouple is used when accurate surface temperature measurement is required in high-temperature industrial processes.
It is useful because:
It gives better contact on flat surfaces.
It provides fast response time.
It is suitable for high-temperature applications.
It can be used on dies, molds, heaters and hot plates.
It is easy to use for maintenance and inspection work.
It can be customized according to wire length, leaf size and connector requirement.
It helps operators monitor process temperature and prevent overheating.
In industries such as plastic processing, packaging, heating equipment, furnace maintenance and machine manufacturing, this sensor helps improve process control, product quality and equipment safety.
D. Suitable Buyers
High Temperature Leaf Thermocouple is suitable for:
Plastic machinery manufacturers
Injection molding machine users
Die and mold manufacturers
Hot plate and heater manufacturers
Industrial furnace users
Machine maintenance teams
Packaging machine manufacturers
Temperature controller panel builders
Industrial automation companies
OEM equipment manufacturers
Process industry maintenance engineers
Testing and calibration service providers
FAQ
1. What is a High Temperature Leaf Thermocouple?
A High Temperature Leaf Thermocouple is a surface temperature sensor with a flat leaf-style sensing tip. It is used to measure temperature on hot surfaces such as dies, molds, heaters, hot plates and industrial machines.
2. Where is a leaf thermocouple used?
It is used in plastic machinery, injection molding machines, mold heating systems, die temperature checking, hot plates, industrial heaters, furnaces and machine maintenance applications.
3. What is the temperature range of this thermocouple?
As per the listed specification, this High Temperature Leaf Thermocouple is suitable for temperatures up to 1100°C. Higher temperature ranges may require a different thermocouple type and special alloy construction.
4. Why is the tip called leaf type?
It is called leaf type because the sensing end is made in a thin, flat leaf-like shape. This design helps the sensor make better contact with the surface and gives faster temperature response.
5. Is this thermocouple suitable for flat surface temperature measurement?
Yes, this thermocouple is suitable for flat surface temperature measurement. It is designed to touch the surface properly and quickly sense temperature changes.
6. Can the wire length be customized?
Yes, the wire length can be customized according to the application requirement.
7. Can the leaf size be customized?
Yes, the leaf size can be customized depending on the surface area, machine design and temperature measurement requirement.
8. Which thermocouple type is commonly used in this product?
This product is commonly available in K Type Simplex configuration, which is widely used for industrial temperature measurement.
9. What are the main benefits of using a leaf type thermocouple?
The main benefits are fast response, better surface contact, high-temperature suitability, easy installation and customization as per industrial application.
10. Who should buy this thermocouple?
This thermocouple is suitable for OEMs, maintenance engineers, plastic machinery users, die and mold manufacturers, heater manufacturers, furnace users and industrial automation solution providers.




