Ultrasonic Welding Cleaning Brush for Medical Application

Last week, we received two types of medical cleaning brushes from our client. The detailed requirement is to weld the brush to the rod firmly without any overflow. Below are the pictures before welding:

medical cleaning brush welding requirements

According to the structure of the brushes, part 1 is the metal wire, part 2 is the plastic rod, we analyzed and designed the customized 20kHz ultrasonic welding tool for them, as is shown below:

Ultrasonic Welding Mold Design Ultrasonic Welding Sonotrode for medical brush

The lower mold is designed to fix the brush and rod together. The ultrasonic welding mold surface has three needles that are the main parts used for welding.

Ultrasonic Welding Sonotrode Surface

After the ultrasonic welding mold was designed and produced well, we did ultrasonic welding tests for clients.

Ultrasonic Welding Machine for medical plastic parts

The ultrasonic welding results are shown below, we also did the pull test, which eventually met the client’s welding expectations.

ultrasonic welding medical cleaning brushPull Test For the ultrasonic welding

Knmtech are ultrasonic welding machine manufacturer with over 15 years of experience in China, if you have any welding requirements, feel free to contact us, and we will provide you with a tailored ultrasonic welding solution.


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