RF-Roto-M4 20x30


Rotary RF Welder

With 4-Position 96" Turntable

RF-Roto-M4-D96 20x30 / 10KW
The Rotary RF Welder is designed to RF seal PVC, EVA & TPU / Coated Materials mainly used for the medical and automotive applications.

Typical Applications

  • RF Welded Solution Bags
  • RF Heat Sealed Air Bladders
  • RF Sealed Straps with hook & loop 
  • RF Welding Cold Packs
  • etc.
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    Reduce Arcs 90%

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    Repeatable Seales

Short Specs for Mid-Size Rotary RF Welding Machine

Model No.



RF welding solution bags, RF welded cushions, cold packs, RF sealed blood pressure cuffs, RF welded tourniquet cuffs

RF Seal Area

20" x 30" / 16" x 44" optional

RF Generator

8 -10 kW Hybrid Generator

27.12 MHz Frequency

Control System

Allen Bradley PLC

12" Touch Screen PC HMI


200-240VAC / 70A /50-60Hz

80psi / 5bar Clean Dry Air (CDA)


96" x 103" / 244cm x 262cm - RF Welder

24" x 32" / 61cm x 81cm - RF Generator

Shipping Weight

7700lb / 3500kg / Crated


ISO-13849-1 / Machinery Safety Standard

UL or CE Optional

Validation Support

Documents available for IQ, DOE and Die FAI

OQ at customer site per customer request

Operating Environment

65-95°F / 18-35°C

68% Max Humidity Non-Condensing

Max 2000m elevation

Rotary RF Welder Highlights

20 x 30"

RF Seal Area

Process Consistency

Key Benefit

8 - 10 KWatt

RF Output Power

RF Welded Blood Pressure Cuffs
Pressure Cuffs
RF Welded Hook and Loop Straps
Facemask Straps
RF Welding Tourniquet Cuff
Tourniquet Cuff
TPU Cold Pack
Cold Pack
RF Sealed Lumbar Support Arms
Lumbar Support 
RF Sealed Tourniquet Cuff
Tourniquet Cuff

Have an Application?

Let's Talk

+1(626) 358-6639

Schedule Live-Demo
Get RF-Roto-M4 Quote 


90% Reduction of RF Sealing Arcs & Die-Burns when using ONEX RF sealers.

Increased production yields due to process consistency and RF Seal integrity.

50% more power efficiency when RF sealing with Hybrid RF Generator technology.

RF Welding the perimeter of a large 44"long air bladder with ports for medical device industry

RF Welding Tourniquet Cuff

Customer came to us with no previous experience in RF sealing technology for the medical device industry.

We provided a Turnkey Process to seal the products and supported the client in validating the entire RF welding process.

We provided the following systems:

  • RF-Roto-M4 / Rotary RF Welder to seal the perimeter and inner stiffener material.
  • We used a dual shuttle RF Sealer to seal the ports in another process (RF-Shuttle-X2)
  • We design and manufactured all the dies
  • We did the DOE at ONEX RF and produced the sample products before shipping the system
  • ONEX RF engineers did complete validation of the RF welder at customer site.

RF Sealing Face-Mask Holding Strap hook & loop attachments for medical device industry


Customer needed a large upper platen to seal the attachments to a strap and have even RF power distribution all four corners of the products.

We provided a Turnkey RF welding system to seal the products and helped setup process parameters.

We provided the following systems:

  • RF-Roto-M4 / Rotary RF Welder to seal the perimeter and inner stiffener material.
  • Design and Manufactured all the dies
  • Created the RF welding process parameters and shipped samples for customer evaluation, before shipping the system.

Portfolio of ONEX RF Welders

RF Welder Brochure Cover Page

RF Welding Solutions

ONEX RF offers various RF welding systems for the medical and automotive products manufacturers. 
Some of the products we have sealed in the past are blood, urine or other solution collection bags, and car seat air bladders.
View the brochure for more system options.

Other Services:

  • Mold Design and Fabrication
  • Process Development
  • Sample Runs for Evaluation
  • Validation Support

Shuttle RF Welders

Contact Request Form

For quick response, please provide details of your product, process needs, and full contact information.


For application related questions, you can always reach us by phone at +1(626)358-6639.

We offer excellent service:

  • Die Prototyping
  • Evaluation Samples
  • Full Process Development
  • Turnkey RF Welding Machine Solutions

We look forward to working with you soon.