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T300 Extreme Curve

Airtight and waterproof seams for the toughest applications

Miller Weldmaster’s T300 Extreme Curve produces airtight and waterproof seams for 2D and 3D inflatables. Discover how the T300 Extreme Curve hot-air and hot-wedge welding machine can help you create seams for uniquely shaped inflatables.

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Features and Benefits

  • Quick- setting recall with touch screen and recipe storage of 25 memory settings
  • Increased product efficiency with dual arms to configure straight and curved seams
  • Quick, repeatable, precision- head adjustments
  • Available in hot- air, hot- wedge or both for product versatility
  • Quick, easy guide change for multiple seam configurations
  Corporate Brochure

Technical Specs

Power Requirements

  • 208-240 Volts - Single Phase -25 Amperes
  • 380-400 Volts - Single Phase -16 Amperes

Air Requirements

  • 100 PSI @ 2 CFM

Power Consumptions

  • 6Kw

Maximum Temperature

  • Hot Air: 730°C
  • Hot Wedge: 450°C

Throat Width

  • 1m (100cm)


  • Width: 0.6m
  • Length: 1.5m
  • Height: 1.5m
  • Weight: Approx. 231KG

Seam Width

  • 10 to 50mm (1/2” to 2”)**

Welding Cycle

  • Up to 30m/min (100ft/min)*


  Technical Specs – T300 Extreme

Service & Training

We're committed to you and your business. The Miller Weldmaster service and resolution center is staffed with our field service engineers for fast response time.

Contact Service

Trust Miller Weldmaster to get your started!

  1. A Miller Weldmaster certified field service engineer will contact you to schedule installation and training at your facility.
  2. We provide you with everything you need to know to get your team ready for installation and training.
  3. Your staff will receive extensive instruction on welding equipment operation and maintenance and how to produce your product.
  Watch our training videos Request Training


  Machine Manual – T300 Extreme
  Pre-Installation Doc – T300 Extreme

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"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 Inflatables