Ultrasonic Medical Welding

Ultrasonic welding is a safe, efficient, and cost-effective process for the manufacturing of medical devices and products. Countless items used every day within the industry are made using this procedure.

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Ultrasonic welding of medical devices is preferred by the industry because it typically removes the need for harsh chemical solvents or adhesives. This means any biocompatibility concerns that are common in the industry can be eliminated.

With ultrasonic welding systems from Herrmann Ultrasonics, manufacturers can enjoy continuous welding capabilities with a strong weld output. This equipment also produces faster welds, eliminating bottlenecks within their operations and increasing the speed of the entire manufacturing process. With medical device welding equipment from Herrmann Ultrasonics, users can monitor the process and optimize the system through a central control tablet. This provides greater ease of use as well as centralized data for making the most informed decisions concerning the efficacy of the technology.

Application Engineering

Succcessful ultrasonic solutions

Membranes, adaptors, connectors

Welding or embedding of thin membranes or films represents a great challenge that is easily mastered by ultrasonics. Moreover, the medical device welding technology ensures unrestricted functionality, weld tightness, and particle purity, along with high outputs.

Surgery instruments, functional components

Housings of electrical components protect the functionality of the sensitive interior parts. Particularly with complex parts geometries, such as grip plates of surgery tools, ultrasonic welding for medical applications provides solutions with dimensional accuracy and stability.

Wearable Medical Devices like Continuous Glucose Monitors (CGM) benefit from the use of ultrasonic welding. This gentle and clean technology uses high-frequency sound waves to weld the device together without adding excess stress to the delicate parts of the CGM systems while simultaneously eliminating the need for additional chemicals like glue or solvents.

Fluid containers, filters

Tight and mark-free welding for medical devices is possible with ultrasonics. The process fulfills absolutely all prerequisites, for example required for blood and dialysis filters. Welding of medical devices ensure correct functionality, based on industry standards, saving millions of lives.

Breathing masks

Due to soft welding by means of ultrasonics, facial masks have a remarkably high wearing comfort. Strong bonding of the multi-layer structure and good breathing permeability are guaranteed by continuous processing, as well as providing for high production rates. Fixation of elastic straps can be easily realized with ultrasonic fabric welding for medical devices.

Ultrasonic sealing is the preferred technology for:

  • Surgical face mask
  • Duck mask
  • 3D thermoformed blister mask

During the pandemic, face masks have become a daily companion for all of us. They protect us and give us security when dealing with others. In addition, they have long been part of everyday working life in many system-relevant professions. Especially when worn for longer periods of time, it becomes apparent that some masks are more comfortable to wear than others.

Utilizing ultrasonics for medical component welding presents numerous advantages when compared to other joining techniques. When used for face masks, it provides a high level of comfort with durable connections between fleece layers, and the secure fixation of the elastic bands. The absence of adhesive also ensures good breathability.

These advantages make daily wearing of the masks easier, especially for sensitive groups of people such as seniors and children. 

Sachets, pouches, and secondary packaging

Sealing of medical packaging using ultrasonics enables the ability to displace powdery or pasty filling goods from the seal area, which sets the foundation for creating a hermetic seam. Fast and safe welding of functional components utilizing ultrasonics is ensured, e.g. spouts on films. The use of ultrasonics provides material cost savings by decreasing headspace, resulting in a narrow seam.

Wound dressing, bandaging material

Laminating or perforating different materials for wound dressing so that they remain breathable, sterile and soft – that is possible with ultrasonics. Due to the low energy input, ultrasonic medical welding does not have any negative effect on absorbency and feel.


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Perfect Product

Continuous ultrasonics

We work with you to develop customized solutions which correspond to your demands precisely. As experts in our field, we develop applications which make your project a success. Here, we rely on long-standing technology partnerships and the results from over 40 high-tech laboratories around the world.
We offer a premium product portfolio with the highest quality standards – Made in Germany. We stand for top weld results, professional integration and durability of all ultrasonic components and modules for an economical overall solution.
We guarantee reliability, safety and a quick on-site service as part of our concept, and immediate support in over 20 countries. For you, this means quick help when you really need it – at any time and in your local language.
A simple route to more sustainability: not a problem with our efficient ultrasonic technology! The ability to do without joining materials and the low energy consumption mean that your production process will automatically become more sustainable. Reliable bonding will also reduce your rejects and prevent you from generating unnecessary waste.
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