Radio Frequency Welding

RFlex Press

Packages start at $42,400 usd MSRP
or $874/mo

RFless Press | Compact Prevision Radio Frequency Welder

The RFlex Press welder is the smallest machine in the Radio Frequency line.  Small but mighty, the RFlex Press brings the power of larger RF machines with a small footprint.  Designed for the production of small intricate applications including automotive, medical equipment, and packaging accessories or products.  The RFlex Press can weld PVC, PET, PU , TPO, or PLA.  With enhanced features such as precision line, spot, curve weld technology, autotuning for consistent welds,  and a durable work table that will make your production more efficient and reliable.  Or, add on the gooseneck work area to help with material handling and flexibility in your movement.  
Best For:
  • Aerospace
  • Inflatable Boats
  • Packaging
  • Inflatables
  • Shades/Tension Structure
  • Shelters Structures
  • Tarpaulins/Covers
  • Tents
  • Automotive
  • Embossing
  • Medical
  • Protective Gear
  • Prototype Work
Seam Type:
  • Butt Seam Butt Seam
  • Channel Seam Channel Seam
  • Fin Prayer Seam Fin Prayer Seam
  • Hem Hem
  • Hem with Rope Hem with Rope
  • Overlap Overlap
  • Tube Tube
  • Extrusion Beading Extrusion Beading
  • RFlex Custom Die RFlex Custom Die
Features & Options

Features & Benefits

  • Multiple Welding Shapes and Custom 2D and 3D Dies
  • Universal usage for PVC, PU, TPU, reinforced technical textiles
  • New generation stable and efficient RF power generator with Autotune Capabilities
  • Easier material placement and better visualization of weld with built-in LED illumination.
  • Pneumatic Foot Operation for precise material and weld placement
  • StrokeDOWN System with a crank-knob system for easy setup of height adjustment of welding electrode from the work table
  • Semi-automated weld cycles with 100 weld cycle recipe memory
  • Easy to use Fully programmable PLC with memory settings and touch screen
  • RF emission protection.
  • Custom dies available for versatile production
  • 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

Optional Add-On:

  • Gooseneck Work Area
Technical Specs

Power Requirements

  • 220 Volts - Three Phase - 30 Amp.


Air Requirements

  • 1cfm @ 90psi

Output Power

  • Approx. 4kw


  • Width - .72m (28")
  • Length - 1.3m (51")
  • Height - 1.75m (69")


  •  300kg (661lb)

Electron Tube

  • Air Cooled Metal-Ceramic Triode

Antiflash System

  • Ultra Fast Solid State Arc Limiter


Control System

  • PLC & 7" Touch Screen HMI

Electrode Size

  • Max Weldable is 16-18 in Squared
  • Variable and Customizable based on Application.


Electrode Stroke

  • 0.15m (6")

Space Behind Electrode

  • 0.32m (12.6")

Work Table Dimensions

  • 0.8m x 0.5m (31.5" x 19")

Power Consumption

  • Approx. 6kW
Our Training Process

Trust Miller Weldmaster to get your started!


Schedule Your Training

A Miller Weldmaster certified field service engineer will contact you to schedule installation and training at your facility. 

Installation Preparation

We provide you with everything you need to know to get your team ready for installation and training.

Staff Training

Your staff will receive extensive instruction on welding equipment operation and maintenance and how to produce your product.



Machine Videos

  • Overview & How Tos
  • Training Videos
The Most Compact Universal RF Welder
How Does RF Welder Work? - RFlex I Miller Weldmaster

Service & Resolution Center

Our service team is dedicated to keeping our customer’s businesses running at optimal performance and assisting with any solutions you need. We are standing by to help you.

Contact Us Today!

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