Microcomputer-controlled Semco SI MWN 3000A table-top AC pulse spot welder for power lithium battery modules, 3C packs, Ni-MH packs, hardware parts and metal jewellery. Features double-spot pneumatic welding head, adjustable welding pressure, single/multi/double pulse modes, up to 3600 A welding current, 0.02–0.2 mm nickel capability and robust industrial-grade protection and durability.
The Semco SI MWN 3000A AC pulse spot welder is an industrial-grade, microcomputer-controlled welding system designed for power lithium-ion battery modules, 3C battery packs, Ni-MH packs, wire terminals, stainless steel parts, small hardware, metal jewellery, copper and aluminium products. Its double-spot horizontal pneumatic welding head delivers stable current and consistent nugget size for high-quality, repeatable welds in production and maintenance/prototyping applications.
Equipped with an independent spring-buffered welding needle design, the system allows precise adjustment of welding pressure (1–10 kg), needle length, pin spacing and head position. Intelligent control with an imported microcontroller provides microsecond-level response, digital parameter setting and multi-mode single, multi and double-pulse welding, including dual-section pulse shaping for stronger, cleaner and more aesthetic welds.
High-grade components such as alumina copper electrodes, pure copper welding cables and clamps, and a pure copper high-power transformer (3 kW / 7 kW / 12 kW options) ensure long-term, high-duty operation. The welder supports up to 3600 A welding current and is suitable for 0.02–0.2 mm nickel strips (power level dependent), with speeds up to 1 weld/second.
Integrated voltage abnormality alarm, stable industrial circuit design and robust pneumatic drive make the machine safe and reliable. The compact 640 × 200 × 360 mm, ~20 kg (7 kW) table-top unit is supplied with foot switch, power cable, air tube, welding needle and tools, and requires 220 V, 50/60 Hz and 2–8 Kgf compressed air. Preventive maintenance—polishing electrodes, checking fasteners, cleaning dust and lubricating moving parts—ensures long service life and consistent welding quality.
| Parameter | Value |
|---|---|
| Input Voltage | 220 V, 50/60 Hz |
| Welding Current (Max) | 3600 A |
| Welding Power (Options) | 3 kW / 7 kW / 12 kW |
| Nickel Thickness Range | 0.02–0.2 mm (power-dependent) |
| Drive Mode | Pneumatic, double-spot horizontal head |
| Welding Speed | Up to 1 time/second |
| Product Size / Weight | 640 × 200 × 360 mm / ~20 kg (7 kW) |
The Semco SI MWN 3000A is a tabletop lithium battery spot welder designed for high accuracy and consistent results. Equipped with double spot-welding heads, this machine is perfect for professional battery pack manufacturers and assembly lines.
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