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The FNIRSI SWM-20 is a high-performance portable spot welding machine designed for battery pack assembly, repair, and DIY electronics projects. Featuring advanced Dual Pulse Welding Technology, it delivers cleaner, stronger, and more reliable welds while minimizing heat impact on battery cells.
Powered by dual A-grade 5000mAh lithium batteries, the SWM-20 provides up to 1200A peak welding current and supports multiple welding materials with adjustable welding parameters for precise performance. The large 2.4-inch TFT color display, rotary encoder control, and intelligent safety protections make it an excellent choice for both professionals and hobbyists. Additionally, its 2-in-1 design allows it to function as a portable 5000mAh power bank, making it even more practical for field use.
| Specification | Details |
|---|---|
| Brand | FNIRSI |
| Model | SWM-20 |
| Product Type | Portable Dual Pulse Spot Welding Machine |
| Peak Welding Current | 1200A |
| Welding Technology | Dual Pulse |
| Battery Capacity | 5000mAh |
| Charging Input | USB Type-C, 5V / 2.1A |
| USB Output | 5V / 2.1A |
| Display | 2.4-inch TFT Color Screen |
| Welding Thickness | 0.1–0.5 mm |
| Welding Materials | Nickel, Iron, Steel, Nickel-Plated Steel, Copper (Limited Thickness) |
| Adjustment Levels | 10,000+ |
| Preset Levels | 4 |
| Auto Shutdown | 0–99 Minutes |
| Firmware Upgrade | USB Type-C |
| Safety Protection | 8 Intelligent Protection Modes |
| Material | Maximum Thickness |
|---|---|
| Steel | 0.50 mm |
| Nickel-Plated Steel | 0.40 mm |
| Iron | 0.30 mm |
| Pure Nickel | 0.25 mm |
| Copper / Nickel-Plated Copper | 0.10 mm |
The detachable pure copper welding pen provides excellent electrical conductivity and efficient heat dissipation for stable spot welding performance. Its durable construction and replaceable tip design ensure long-lasting reliability and easy maintenance.
The FNIRSI SWM-20 supports welding a wide range of materials, including steel, iron, pure nickel, nickel-plated steel, and copper within specified thickness limits. This versatility makes it ideal for battery pack assembly, repair, and various electronics applications.
For the best welding results, ensure the workpiece is clean, properly aligned, and the welding pens maintain the correct spacing with moderate pressure. Following these guidelines helps achieve stronger welds while preventing damage to the battery and welding electrodes.
The FNIRSI SWM-20 is equipped with an intelligent multi-layer protection system that safeguards both the device and the battery during operation. It features over-temperature, overcharge, over-discharge, short circuit, undervoltage, low-temperature, and impact protection, along with voltage stabilization to ensure safe, stable, and reliable spot welding performance.
TechShopBD offers up to one year of warranty and replacement support for its products, depending on the supplier(s) and product(s). The specific warranty duration for each product can be found on the respective product page. To be eligible for warranty and replacement support, customers must agree to our terms and conditions.
Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please don’t hesitate to contact us to determine if further action is required.
Our engineers are available to assist you. If you have any queries, please leave a comment below or call 09678110110 from 09:00 am to 06:00 pm (7 days a week). You can also reach us via WhatsApp or Facebook Inbox.
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The latest and best price of FNIRSI SWM 20 Dual Pulse Portable Spot Welding Machine in BD is BDT 7450.06 Taka. You can purchase the FNIRSI SWM 20 Dual Pulse Portable Spot Welding Machine at the best price on TechShopBD.com or visit our office to pick yours up today.
You can easily buy the FNIRSI SWM 20 Dual Pulse Portable Spot Welding Machine at the best price in BD from TechShopBD.com (our online store) or visit our physical office.
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