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Watertight and Airtight Welding for Curved and Shaped Applications


Miller Weldmaster is a leading creator of hot air welding machines for inflatable tents, military attack boats, 2D or 3D inflatables, and tanks and bladders. Hot air welding allows customers to speed up production to meet demand while ensuring strong, long-lasting seams.

Hot Air Technology

Hot air technology can weld any thermoplastic materials. Most of our customers use hot air technology to weld double-wall or drop-stitch fabrics and PVC-coated and polyurethane (PU)-coated fabrics into products with curves and unique shapes.

With three-dimensional products that need to withstand high impact and high abrasion, seam strength is very important. Certain temperatures will compromise glued seams, but with hot air welding, you get airtight and watertight seams.

Our hot air welders also lower production costs.

Which machine would I use to weld a Rib boat together or general inflatables?

The T300/T600 Curve Hot Air machine. Either machine will give you the freedom or ability to weld virtually any shape or size that your product is in need of.

Do I need to tape over the seams after welding the inflatable?

Depending on the material that you are using, to prevent wicking within the material, we recommend that you tape over the seam using the T300/T600.

Do I need only one machine to make an inflatable?

Typically, by using the combination of the T300/T600 and the Rflex Radio Frequency machine, you will be able to manufacture your entire boat. The T300/T600 to weld the body of the boat and the RFlex to weld the Valves, handles, ports, etc…

"The welded seams of a WING are the strongest part of the boat. We have never had a seam fail. Miller has worked with us from the very beginning. Miller knows that our down time costs money. Miller will go above and beyond what is necessary to help us out."

-Wing Inflatbales

To find the exact machine to suit your needs, contact us.

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