RF Welding Systems with Superior Process Control

Small Rotary RF Sealer

RF-Roto-S1  8"x10"

The 1st ONEX RF sealer, RF-Roto-S1 with 8"x10" seal area, was developed for RF Sealing 1" round pouch with tubing "Flat -Pilot Balloon" used for sensing the tracheal balloon pressure. Being new in the industry in 2007 we developed the entire system and purchased Solid State Generator to achieve the best quality seal. Later, we developed our own hybrid generator technology. Read more about the specs and RF Sealing applications below...


The 1st ONEX RF Sealer

Rotary RF Sealer Uses

The small rotary RF sealer is perfect for sealing small pouches with small 0.062" OD tubing with zero leakage. The RF sealer uses 48" dial hi precision indexer to position the nest precisely under the seal press every time.

  • Precision port sealing on small pouches
  • Safe & easy to operate

The RF Sealer comes with closed loop process control to achieve consistent results in RF sealed products.

Some additional information in one line

Small Rotary RF Sealer

Rotary Indexing Dial

Seal Area

RF Generator

Process Control



EMI/RFI safety meets


Air Pressure

Shipping Weight




4 position 48" Dial        


2kW at 27.12MHz

Auto Tuner / AB PLC


ISO 13849 / Class IV

OSHA and VDE 0848

208VAC / 3Ph / 50-60Hz

80 PSI 



UL or CE (Per Request)

View RF Catheter Tipping Brochure 
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Get a RF-Sealer Quote

RF Welding Process Control

Easy - Reliable - Streight Forward.

ONEX RF has developed process control, which makes process validation easy and repeatable.

The closed-loop process control, real-time seal-process monitoring with data logging, helps you set process parameters and achieve acceptable quality seals in a matter of minutes. The hybrid generator uses an AGC to maintain exact RF power at all times, which eliminates process variations during validation.


RF Welder Process Control Screens

RF Welding Process Control Screens.png

  •     Main Screen
  •     Recipe Screen
  •     Die Setup Screen
  •  Manual Verification Screen
  •  Engineering Setup Screen
  •  System Screen

ONEX RF uses Allen Bradley PLC and PC based 12"  HMI to control the RF Welding Machines.
We have designed our systems for ease of use and validation to comply FDA requirements.
We offer validation support, including FAT & Installation Qualification documentation.

Process Monitoring

rf welding process monitoring graph


The PC based HMI software can monitor the RF welding process and record each cycle. Read More


RF Sealing Small Pouches on RF-Roto-4-S1

RF Welded EVA UCB Freezing Bag
RF Welded PVC Small Air Pouch.jpg

RF Sealing Small Pouches

When sealing 0.026" ID tubing there are several factors that have to be perfect. Any one can make a precision sealing dies but machine needs to be designed and built with zero tolerance and use precision indexer to prevent any leaks. We designed 4-up RF sealing dies and the 48" dial with 8 arc.sec. indexer accuracy helped us achieve perfect seal every time. Customer has ran over million bags without any channel leaks.


Explore other RF Welding Systems - Contact Us to Discuss Your Application or call us at 1(626) 358-ONEX (6639)

View Other RF-Roto-(X)1 Sizes   Explore Other RF Welding Systems   Contact us for RF Welders