T300 Extreme Flex Welding Machine

Our most versatile welder

Our most universal welder, the T300 Extreme Flex uses hot air and hot wedge technologies with an array of seam types.

Discover how the T300 Extreme Flex can help you finish tents, shelters, tarps, covers and more in no time.

T300 Extreme Additions

Miller Weldmaster understands every customer has different needs.

Conveyors can be added to increase full product capability while reducing fabric handling.

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Adding inline grommet operation capability makes your T300 Extreme a semi-automatic solution. With this capability, the machine can unwind for continuous material flow. A rope/keder dispenser for off-roll operation reduces material handling, and an inline grommet machine places grommets with precision and accuracy.

We’re known for the longest-lasting machines.

The T300 Extreme Flex is built for multiple-shift production, and with its solid-steel design, this machine can last for multiple decades.

T300 Flex Edge Hot Air Welder

T300 Flex Edge Hot Air Welder Features

Features and Benefits

  1. Quick setting recall with easy operation touch screen and recipe storage
  2. Increased product versatility with dual arms to configure straight or curved seams
  3. Quick, repeatable head adjustments for precision welding
  4. Available in hot air, hot wedge or both for product versatility
  5. Multiple seam configurations for quick, easy guide change


Technical Specifications

Power Requirements:
208-240 Volts – Single Phase -25 Amperes
380-400 Volts – Single Phase – 16 Amperes

Air Requirements:
100 PSI @ 2 CFM

Power Consumptions:

Maximum Temperature:
Hot Air: 730o C – Hot Wedge: 450o C

Throat Width:
1m (300cm)

Width: 600mm
Length: 1.5m
Height: 1.5mm
Weight: Approx. 231KG

Seam Width:
10 to 50mm (1/2” to 2”)**

Welding Cycle:
Up to 30m/min (100ft/min)*

*Depending on the application, the seam width, and the type of material used

**Additional guides might be necessary

Download Spec Flyer 

Install Train

Professional Installation and Training

Trust Miller Weldmaster to get you 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.

Most of our customers are making finished products by the end of the first day.

Download Pre-Install Document


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.


“You won’t find better quality, service or support.” – Economy Tent

“Thank you for making a machine that lasts. It is nice that we had a machine that lasted as long as some of our boats and that you believe in building a machine with longevity.” – Jack’s Plastic Welding


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