Spike thermocouples
Spike thermocouples
Spike thermocouples
Spike thermocouples or torch thermocouples can be ordered as single or dual (two measuring junctions). Dual spike thermocouples are often used for a redundant measurement in the event that one circuit fails. Duals may also be used to track sensor drift. This is accomplished by populating one of the dual circuits with a different calibration wire (typically R, S, or B) than the other circuit. As the thermocouple circuits age, they will drift. Different calibrations will drift at different rates. Comparing the rate of drift differential will give an indication as to the amount of drift the particular dual spike is experiencing, and by extension, the rate of drift for the other spikes. Spike recalibration or replacement decisions may be made based on objective criterion rather than arbitrary time-based maintenance schedules.
Designed for vertical & horizontal furnaces
Conax manufactures spike thermocouples for both vertical and horizontal furnace systems used throughout the semiconductor, photovoltaic, and LED industries. Whether you need a direct replacement or a custom-engineered solution, our thermocouples are designed to integrate seamlessly with your process equipment.
Conax thermocouples are compatible with many of the industry's leading furnace platforms, including:
- ASM®* (*ASM® is a registered trademark of ASM International. Conax Technologies and its products are not affiliated with, endorsed by, or sponsored by ASM International.)
- BTI/Tempress
- MRL
- ATV Technologies
- Centrotherm
- SVCS
- Aviza / SVG / Thermco
- TEL
- Kokusai
- Tystar
Standard or custom configurations
Every thermal process has unique requirements. That's why Conax offers both off-the-shelf and fully customized spike thermocouples to meet your specific application. Our engineering team can help develop a solution optimized for your process conditions, equipment, and temperature control requirements.
Available thermocouple types
Conax spike thermocouples are available in a range of noble and base metal calibrations, including:
- Type B (Pt-Rh)
- Type R (Pt-Rh)
- Type S (Pt-Rh)
- Type K
- Type N
These options allow you to select the thermocouple best suited to your temperature range, process environment, and accuracy requirements.
Choose from one of our standard designs for either vertical or horizontal type furnaces, or let us work with you to develop a customized design. Contact us for all available options and customizations!


