Vacuum furnaces are a key part of modern materials processing, particularly where cleanliness, consistency, and thermal control matter. By removing air and reactive gases from the chamber, they create a stable environment for high temperature work that would be difficult to achieve in a conventional furnace.
This makes them especially useful in research, advanced manufacturing, and applications where oxidation or contamination could affect the result.
What is a vacuum furnace?
A vacuum furnace is a sealed thermal processing system that operates under reduced pressure. Once air is removed from the chamber, heating can take place either under vacuum or in a controlled inert gas atmosphere, depending on the application.
Typical processes include heat treatment, annealing, sintering, brazing, and thin film deposition. These are all areas where process control and material purity are important.
Thermic Edge systems can reach temperatures of 2100°C and beyond, with specialised configurations achieving up to 3000°C. Base pressure can be reduced to <5×10⁻² mBar, or <5×10⁻⁵ mBar with turbo pumping systems.
How does a vacuum furnace operate?
The process begins by placing the sample inside the sealed chamber. Air is removed using vacuum pumps, and any remaining oxygen can be purged with inert gas if required by the process.
Heating is then applied at a controlled ramp rate. Once the required temperature is reached, it is held under controlled conditions before the system is cooled and safely returned to atmospheric pressure.
Where are vacuum furnaces used?
Vacuum furnaces are used across universities, semiconductor manufacturing, aerospace, and other technical industries where precise high temperature processing is required. Their ability to reduce contamination and support repeatable results makes them well suited to both development work and production environments.
In electronics manufacturing, our ALD systems support thin film deposition where close process control is essential.
What defines a Thermic Edge vacuum furnace?
Thermic Edge vacuum furnaces are built around the demands of the application. Hot zones can be supplied in graphite or SiC coated graphite depending on temperature and process requirements.
Systems are controlled through touchscreen HMI interfaces, with ramp rates exceeding 100°C per minute in higher power configurations. Water cooled chambers help maintain safe external temperatures, while control and data logging can be managed through Eurotherm Nanodac systems.
For applications requiring reliable performance at very high temperatures, our graphite furnaces can operate up to 3000°C under vacuum conditions.
Customisation and scalability
Vacuum furnace systems can be configured to suit a wide range of applications, from compact laboratory units to larger industrial platforms.
Our benchtop furnaces provide high performance in smaller footprints, while larger systems can support more complex gas handling, wider chamber volumes, and demanding thermal workflows.
You can also explore the full vacuum furnace range to see the wider options available.
Need help with a vacuum furnace application?
Visit our contact page here: https://thermic-edge.com/contact/
