Resistance Welding Equipment 3 Phase 220V Point Portable Spot Welding Machine
This portable spot welding machine is designed to address the challenges of on-site welding for large, complex, or fixed workpieces. Its core advantage lies in exceptional on-site adaptability and process flexibility. The system integrates the welding transformer, intelligent controller, and multi-configuration welding guns via flexible cables, forming a suspendable mobile workstation. Operators can effortlessly maneuver the gun with 360° omnidirectional access, precisely reaching weld points inaccessible to traditional stationary welders. It is particularly suited for automotive body-in-white repair, large sheet metal enclosure fabrication, and online touch-up welding on assembly lines. By precisely combining resistance heat with mechanical force, it enables high-quality, efficient spot welding without moving the workpiece, making it a key asset for enhancing production flexibility and efficiency.
| Models Item | DN2-31X | DN2-31C | DN2-40X | DN2-40C | DN2-63X | DN2-63C |
|---|---|---|---|---|---|---|
| Power at 50% (KVA) | 31 | 31 | 40 | 40 | 63 | 63 |
| Transformer turns ratio ( ) | 70 | 70 | 56 | 56 | 48 | 48 |
| Maximum short circuit current (KA ) | 14 | 14 | 18 | 18 | 20 | 20 |
| Secondary unload voltage ( V) | 5.58 | 5.58 | 6.8 | 6.8 | 7.9 | 7.9 |
| Voltage at 50Hz/60Hz (V ) | 380 | 380 | 380 | 380 | 380 | 380 |
| Distance between the arms (mm ) | 168-288 | 100 | 168-328 | 100 | 168-428 | 100 |
| Min. length of arms ( mm) | 220 | 200 | 300 | 200 | 400 | 200 |
| Max. strength at electrodes (N ) | 3000 | 3000 | 3500 | 3000 | 3500 | 3000 |
| Working stroke (mm ) | 15-45 | 15-25 | 15-45 | 15-25 | 15-45 | 15-25 |
| Max. stroke of cylinder (mm ) | 70 | 50 | 100 | 50 | 100 | 50 |
| Max. arm length (mm ) | 750 | 350 | 1000 | 450 | 1100 | 500 |
| Compressed air supply (MPa ) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Max.thickness of mild steel sheet with min. length s arm (mm ) | 3+3 | 3+3 | 4+4 | 4 +4 | 5+5 | 5+5 |
| With 500mm arms (mm ) | 2+2 | 2+2 | 3+3 | 3+3 | 3+3 | 3+3 |
| With maximum length arms (mm ) | 1.2+2 | 1.2+1.2 | 2+2 | 1.8+1.8 | 2.0+2.0 | 2.0+2.0 |
| Cross wire maximum (mm ) | 14+14 | 14+14 | 16+16 | 16+16 | 20+20 | 20+20 |
| Cooling water pressure ( MPa) | 0.2-0.3 | 0.2-0.3 | 0.2-0.3 | 0.2-0.3 | 0.2-0.3 | 0.2-0.3 |
| Cooling water flow (L/min ) | 4 | 4 | 4 | 4 | 4 | 4 |
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Integrated Compact Power Unit: Features an aluminum alloy body that highly integrates the transformer, controller, and pneumatic/hydraulic circuits. This achieves a compact design with small size, high output, and excellent energy efficiency, facilitating easy movement and deployment while significantly reducing on-site operational complexity.
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High-Reliability Core Components: The electrode arms are made of premium chromium zirconium copper (CuCrZr-1), ensuring outstanding electrical conductivity, wear resistance, and high-temperature strength. This guarantees long-term stable welding performance and extends the overall service life of the equipment.
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Efficient & Clean Welding Process: The process is characterized by extremely short heating time and concentrated heat, with no arc, spark spatter, or slag. Workpiece thermal distortion is minimal. An optimized large-diameter pneumatic system further enhances welding speed and seam appearance.
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Programmable Precise Energy Control: The welding controller allows precise regulation of current duration and heat input, ensuring the formation of stable, reproducible, high-quality weld nuggets. It is capable of welding a variety of similar/dissimilar metals and coated steel plates.
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Notable Cost-Effectiveness & Ease of Use: The welding process is simple, requiring no filler metal, flux, or shielding gas, resulting in low operational costs. The equipment is easy to maintain and lightweight, and when combined with the balancer suspension, it drastically reduces operator fatigue and energy consumption.
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