What Is a Tube Expander?

A tube expander, also called a coil expander, is a machine or tool used to increase the diameter of tubing. In coil manufacturing, expansion helps create a secure mechanical fit between the tubes and surrounding fins, improving the integrity and performance of the finished coil.

Tube and coil expansion equipment is used in industries including HVAC, refrigeration, automotive, aerospace, and plumbing. Depending on the application, tubes may be expanded individually, as part of a coil assembly, or at the tube ends for joining and assembly.

Tridan International manufactures tube expansion equipment for coils using conventional U-bends as well as straight tubes, with configurations designed for a variety of production requirements.

Why Choose a Tridan Tube Expander?

Tridan offers a range of tube and coil expanders designed to fit different production environments, coil sizes, and floor-space requirements.

Our expansion equipment includes horizontal, vertical, and semi-portable tube expanders. Horizontal machines provide a traditional production layout, while vertical expanders can help manufacturers make more efficient use of valuable floor space.

The Flexpander FE-5 is a compact, versatile option designed to expand two coils at the same time. It can accommodate hairpin tubes positioned diagonally, vertically, or horizontally. Its compact footprint and portability make the FE-5 a practical choice for shops where flexibility and efficient use of space are important.

Need Tube End Expansion?

Tridan also manufactures equipment specifically for tube end expansion, sizing, and belling. The Tube End Sizer – BTM is a handheld tool designed to expand and size tube ends for subsequent assembly or joining operations.

Additional tube end sizing options include the Tube End Sizer – BFA and the Air-Operated Tube End Sizer – BTP, giving manufacturers multiple options based on their production needs.

Tube Expansion Equipment Built for Your Operation

For more than 50 years, Tridan International has supplied equipment to manufacturers in the HVAC and heat-transfer industries. Our tube and coil expansion machines are built with long-term production use in mind, and we support our equipment with replacement parts and service.

Whether you need a full-size coil expansion machine, a space-saving solution, or a handheld tube end sizing tool, our team can help you identify the right equipment for your application.

Call Tridan International at 217-443-3592 or contact us today to discuss your tube expansion requirements.