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Rotary Tube Furnaces

Rotary tube furnaces are well suited for manufacturing a range of materials, like alumina and iron ore pellets, applications such as calcining, which require the continuous throughput of loose materials, and oxidation. They are designed to withstand high temperatures and offer complete process control, resulting in high-quality products. 


Every Deltech rotary tube furnace is custom designed, meaning we can develop them specifically to the size and configuration to suit your process requirements.

Rotary Tube Furnaces
Rotary Tube Furnaces

Customer Comments

“Deltech makes an excellent product and provides superior customer support.“

“We just did the pilot plant testing using your furnace. It worked great and the pilot was a success.”

Features of Our Rotary Tube Furnaces

  • Resistance heated with silicon carbide or molydisilicide heating elements for sustained operating temperatures up to 1700 degrees Celsius.
  • Single and multiple zones
  • Customized rotation speeds and gradients
  • Fully programmable operation with fully integrated control panels
  • Processing in air, oxygen, and inert atmospheres
  • Optional gas mixing, detection, and alarm systems
  • Optional exhaust scrubbers with control and plumbing integrated into Deltech control and gas mixing systems.

Before the Design Process

Before we begin designing your custom rotary tube furnace, we will need some details from you, which include the following:

  1. Your preferred tube material (such as stainless steel, quartz, and Inconel).
  2. Range of desired angle of the tube
  3. Desired rotation speed (3-7 rpm is standard)
  4. Feed type (screw conveyor, vibratory hopper, other or none)
  5. Density of the material(s) to be processed
  6. Retention time (can be adjusted)
  7. Does the furnace need to be sealed?
  8. Do you need gas mixing and safety features?
  9. Do you have PLC/HMI requirements? If so, do you require a specific brand, e.g. Bradley or Siemens, to integrate with your existing system?


Can’t find the answers you’re looking for? We can assist you in determining the features of your custom rotary tube furnace system that are optimal for your process. Deltech is also a rotary kiln manufacturer, providing a range of products based on years of experience and knowledge.

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All Deltech furnace systems are designed and manufactured in the U.S.A, and shipped and installed worldwide.