A vacuum furnace is used to heat materials in a controlled, low-pressure environment. It’s great for processes like brazing, sintering, annealing, or heat treating metals and ceramics where you want to avoid oxidation or contamination.

It works by removing air and gases from a sealed chamber, creating a vacuum. Then, it heats the material inside using elements like graphite or molybdenum, all while keeping the atmosphere clean and controlled.

Industries like aerospace, automotive, medical device manufacturing, and tool production use them a lot. They’re key for making high-quality parts that need precision and durability.