Used Ultrasonic Welders

Refurbished Ultrasonic Welders. We Buy and Sell!


Search for models by the manufacturer by clicking on the above tabs or use the menu on the left.

Sonitek has a complete selection of used and refurbished Ultrasonic Welders and Vibration Welders that are available in stock and ready to ship. All of our welders are refurbished by our experienced service technicians. Most refurbished welders are sold with a one year (or more) warranty!

Watch our Ultrasonic Welding Videos!

We now offer METAL Welders too! All REFURBISHED (click on the link to the left)

Click on any of the TABS above to see a list of available ultrasonic welders from the manufacturers or use the links on the left for more information on our extensive inventory!

NEED TOOLING? We design and Build Ultrasonic Tooling for ALL machines! Click here to download Horns brochure

Sonitek also offers a complete line of new/used booster horns, converter/transducers, ultrasonicBranson ultrasonic welders and  Dukane ultrasonic welders - used and refurbished welding horns(new and used), and ultrasonic welder spare parts.

Looking for NEW sonic welders? Sonitek S840 and S870 (known worldwide as the Branson model 8400 and 8700) are the most reliable and easiest to use ultrasonic welders ever built.

We also offer a complete line of HEAT STAKING, INSERTION, De-Gating and Date-Coding equipment. Check out our complete line of Heat Staking and Insertion Systems!

Looking for technical information about ultrasonic and thermal plastic assembly? Check out our Tech Info section.

Our stock changes daily so if you don't see the sonic welder you are looking for please contact us!

NEW! Sonitek Air Presses -

Used Branson ultrasonic welders and use Dukane ultrasonic welders for as low as $120.00 a month.


If your already know the ultrasonic welder make and model you need:

Click here to request a quote.

Sonitek Corporation
84 Research Drive
Milford, CT 06460
Tel: (203) 878-9321 Fax: (203) 878-6786

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