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The Most Versatile Radio Frequency Machine

The RFlex stationary welder is the industry’s most versatile radio frequency welder available on the market. RFlex was designed for the production of tarpaulins, tents, truck tarps, high speed doors, and any other flexible Polyvinyl chloride (PVC) or Polyurethanes (PU) product. With enhanced features such as, a foldable trough for better material handling, a joy stick to accurately line up your material every time, autotuning for consistent welds, your production will be even more efficient and reliable.

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Features and Benefits

  • Universal usage for PVC, PU, TPU, reinforced technical textiles
  • Foldable large worktable with deep trough creating ample space behind the electrode for easy material handling
  • New generation stable and efficient RF power generator
  • Easily change dies with QuickGRIP release system of the electrodes
  • Easier material placement and better visualization of weld with built in LED illumination.
  • Manual, semi-automatic and automatic operation
  • 10" color touch screen HMI panel on a swing arm for use on any side of the machine
  • SafeDOWN anti-crush electrode safety motion system
  • Fully automated weld cycles with 100 weld cycle recipe memory
  • Auto-tuning for steady RF power feed to assure consistent welds
  • Fully proframmable PLC with memory settings
  • RF emission protection.
  • Custom dies available for versatile production
  • Line up your material accurately every time with the joystick and foot pedal precision
  • Easy to use intuitive operating menu with machine specific software
  • Ultrafast monitoring of arcs and overloads for protecting the integrity of the electrodes and the welded material
  • For welding non-RF weldable fabrics, the RFlex can be fitted with an impulse electrode
  Corporate Brochure

Technical Specs

Power Requirements:

  • Three Phase - 240 Volts - 60 Amps
  • Three Phase - 400 Volts - 40 Amps
  • Three Phase - 480 Volts - 40 Amps

Electron Tube:

  • Air Cooled Metal-Ceramic Triode

Electrode Length:

  • 1.2m (47 inches)
  • Optional- 1.5m (59 inches)
  • Electrode Stroke: 0.16m (6.3 inches)

Air Requirements:

  • 2cfm @ 120 psi

Power Output:

  • 15kw


  • Width - 1.7m
  • Length - 1.97m
  • Height - 2.4m
  • Weight - 1,100kg

Work Table Dimensions:

  • 1.6m x 0.8m (63in x 31in)

Trough Size:

  • 0.4m x 0.5m (15.75in x 19.75in)

Electrode Mount:

  • QuickGRIP, pneumatic

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


  Technical Specs - RFlex
  kW Calculator - Straight Bar
  kW Calculator - Round Bar

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 - RFlex

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“It has been a pleasure working with Miller Weldmaster and your team. We currently have 2 machines that has helped us increase our production by 30%” - Apex Filtration and Environmental