Equipment / configured to order
SZ-40KHZ High-Power Ultrasonic Metal Welding Machine
A 40 kHz ultrasonic spot welding system for battery tabs, foils and dissimilar non-ferrous metals. The machine combines an ultrasonic generator, a transducer stack and a pneumatically driven welding head. Joining takes place in the solid state: no…

Typical applications
Discuss your intended cell design and application with our team.
Customization scope
The equipment configuration is defined around your project requirements.
Overview
A 40 kHz ultrasonic spot welding system for battery tabs, foils and dissimilar non-ferrous metals. The machine combines an ultrasonic generator, a transducer stack and a pneumatically driven welding head. Joining takes place in the solid state: no current is passed through the workpiece and no process heat is introduced, so foil thickness and coating are preserved at the weld interface.
Key features
- Pneumatic welding head guided by precision linear bearings for accurate vertical travel
- Adjustable mechanical stop for repeatable upper and lower welding positions
- Independent adjustment of head speed, ultrasonic welding time and hold-down time
- Regulated generator output keeps amplitude stable during mains voltage fluctuation
- Imported SKD11 sonotrode and anvil for wear resistance and efficient energy transfer
- Foot-switch operation with password protection and overload protection
- Suitable for polymer cell cathode welding, cap-to-aluminium-tab welding, multi-point tab welding, copper tube sealing and cutting, wiring harness and solar panel joining
Technical specifications
| Machine type | High-power ultrasonic metal welding machine |
|---|---|
| Model | SZ-40KHZ |
| Rated power | 800 W |
| Power supply | 220 VAC ±10%, 50/60 Hz |
| Air supply | 0.4–0.8 MPa; humidity 1,000,000 welds (cathode) |
| Sonotrode material | Imported SKD11 |
| Weld nugget height | 0.5 mm (cathode) |
| Sonotrode length | ≥125 mm |
| Usable welding faces | 4 |
| Amplitude adjustment range | 20–40 µm half wave |
| Transducer frequency deviation | ≤500 Hz |
| Transducer impedance deviation | ≤4 Ω |
| Transducer capacitance deviation | ≤500 pF |
| Transducer insulation resistance | ≥35 MΩ |
| Peak power | Up to 1000 W |
| Control mode | Foot switch, time mode |
| Design service life | 10 years Specifications subject to change without prior notice. |
Information for project review
Please share your cell format, chemistry, target capacity, process scope, facility conditions and voltage standard.
Training in China
Training at our China facility is available for this product. Scope, schedule and language are agreed for each project.
LET’S DEFINE YOUR PROJECT
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Share what you want to make, where you are in the process, and what your team needs to learn.
support@szotech.comSpecifications vary by project configuration. Contact us for a tailored proposal.
