Mobile charger and adapter housings are commonly sealed by ultrasonic welding. It gives a fast, repeatable joint with no screws or adhesive, which suits high-volume assembly. JSB Ultrasonic supplies machines and tooling for charger and adapter assembly.
Where It Is Used in Charger Manufacturing
- Charger and adapter housings: joining the two plastic shells around the internal electronics.
- Power bank and cable parts: assembling small plastic components and strain-relief parts.
See our ultrasonic welding machine for mobile chargers and our 20kHz 2000W ultrasonic plastic welding machine. A charger-specific welding horn and charger mold is also available.
Welding Considerations
- Joint design: the housing seam must suit ultrasonic welding for a clean, strong, sealed result.
- Internal components: weld parameters must be set to avoid stressing the electronics inside.
- Tooling: a horn and fixture shaped to each charger model keep results consistent. Read our horn design guide.
Choosing a Machine
Frequency and power depend on the housing size and plastic. Compare 15kHz and 20kHz machines, or see our ultrasonic plastic welding machines.
Request a Quote or Sample Evaluation
Send us your charger housing sample or drawing to discuss a suitable machine and tooling.
Watch It in Action
Short demo videos from the JSB YouTube channel.

