Our SeamMaster® Ultrasonic Sewing Machine uses a rotary operation to quickly create a strong, reliable seal without glue gaps or stitch holes

The SeamMaster® Ultrasonic Sewing Machine operates similar to a traditional sewing machine, but uses high-frequency ultrasonic waves instead of needles and thread to produce secure barrier seams.West Chester, PA – April 9, 2020 – During the current COVID-19 pandemic, while sufficient supplies of personal protective equipment are critically needed by hospital staff, first responders, and other healthcare providers, Sonobond Ultrasonics’ textile assembly machines can help increase your production speed and create barrier seams that satisfy regulatory requirements.

The Advantages of Ultrasonic Technology

Our machinery uses high-frequency ultrasonic waves to produce sealed edges and secure barrier seams. Strong, reliable bonds are created without stitch holes, glue gaps, fraying or unraveling; no thread or other consumables are required.

What type of face masks and medical supplies can our equipment assemble?

Example of face masks assembled with Sonobond Ultrasonics’ machinery.Most commonly used face masks can be wholly or partially assembled using our SeamMaster® Ultrasonic Sewing Machine or a combination of the SeamMaster® and our PlungeBonder™ Ultrasonic Spot-Weld Bonder. Disposable medical gowns and shoe covers, lint-free wound dressings, pillow and mattress covers, and pouches for sterilizing and storing medical instruments are some of the typical products assembled with our machines.

How do we ensure that our equipment will suit different customer applications?

We offer no-charge, no-obligation textile bonding viability tests to produce sample assemblies using your own nonwoven or synthetic materials. This allows you to evaluate the results and confirm the quality of our process before placing an order.

Is Sonobond continuing to make machines even as other businesses are shutting down to combat the spread of COVID-19?

Yes. Sonobond has been granted a waiver from our state’s COVID-19 Orders to continue our critical role in providing equipment that assembles life-sustaining medical supplies. However, due to high demand and our adherence to CDC mitigation measures to protect our staff and the community, we appreciate your understanding if your order is not filled as quickly as usual.

What’s the best way to contact Sonobond for immediate or additional information?

Please call 610-696-4710; or contact Vice President Melissa Alleman at This email address is being protected from spambots. You need JavaScript enabled to view it.. You can also visit this page on our website https://www.sonobondultrasonics.com/welders-bonders/nonwovens-textiles to view our textile and filter assembly video.

A Track Record of Industry Leadership and Customer Service

SeamMaster® Ultrasonic Sewing Machine meets regulatory requirements for barrier seams in nonwoven material used for medical gowns, face masks and other nonwoven textile medical supplies.Sonobond Ultrasonics is a worldwide leader in the application of ultrasonic bonding and welding technology. We have developed a comprehensive offering of innovative, quality-engineered products during our 60+ years of operation. We manufacture ultrasonic equipment for leading firms in the aerospace, apparel, appliance, automotive, ballistics, battery, electrical, environmental, filtration, HVAC, medical and solar industries. Additionally, Sonobond employees have earned a reputation for providing exceptional customer service and outstanding technical support before, during and after equipment installation. They’re committed to ensuring that ultrasonic equipment is introduced swiftly and smoothly to any manufacturing operation.