3KRF High Frequency Solid State Technology

Medical RF Sealing and RF Welding Machines


The science behind our 3KRF High Frequency Solid State Technology starts with the generator the heart of the machine, by eliminating the oscillator tube we were able to utilize a special crystal based generator design that enables the user to the first ever closed loop RF welding system.

This is integral to the sealing process giving the user the ability to make changes based on real time process monitoring. Our machines all come standard with the most advanced matching network in the industry. The 3KRF automatic tuning system runs throughout the entire cycle making quick accurate adjustment to maximize the power from the generator with little to no loss.

In addition, 3KRF welders with solid state technology:

  • Operates at 27.12Mhz
  • 19” Rack Mount Design
  • Limits Arcing
  • Less Power Consumption
  • Validate able

The result is greater consistency and repeatable results. It’s ideal for medical applications ranging from sealing blood bags, urinary drainage bags and blood separation systems to manufacturing water mattresses and hazardous waste containment systems.

Get a Quote for a 3KRF HF Sealing Machine Click to Call 516.208.6824


3KRF technology is the right choice for high-volume production houses seeking increased process automation. Many large multinational organizations employ the use of this technology for 24/7 high speed production systems. Whether you are in the market for a compact medical RF welding shuttle machine, double-cycle turntable sealing machine, or complete inline system our equipment offers simple integration to any PLC.  Our experienced team will help determine which processing technique, equipment and tooling is right for your specific sealing application.

Additional advantages of our 3KRF state-of-the-art high frequency welding equipment includes:

  • Lower Tooling Expenses — Solid State welding machine that seals at a lower power with less arcing, the tooling used in the process will last longer and provide higher quality results.
  • Increased Weld Strength — Solid State welding equipment outperforms conventional machines by delivering consistent, controllable output power throughout the cycle. You get more impressive weld strength without wasting valuable time and resources adjusting to variable operating conditions.
  • Greater Energy Efficiency — Solid State welders operate on as much as 60% less power than tube style plastic sealers. Equipment comes available with a 25-pin connector that adds the ability to monitor the entire weld cycle in real time while the system manages power consumption with greater control over the power to the seal area.
Medical Bags done with 3KRF Technology


Markperi is the exclusive manufacturer of the patented solid state 3KRF welding technology. For over 34 years, we’ve been pushing the envelope of innovation to provide competitively priced high-end welders and sealers that set the bar in the industry. If you have a bag sealing application for the medical industry or require a faster, more precise RF welding process, we offer a full range of solid state 3KRF welding machines featuring the very latest technology.

Get in touch with us today for more information on solid state RF welders, PLC controlled systems and our complete selection of products, parts and services!

3KRF Made in the USA.  United States Patent: 7,012,232, 7,220,950, 7,586,071

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