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China-Zx7-3-Phase-Serials-Inverter-DC-Arc-Welding-Machine
**ZX7 3-Phase Inverter DC Arc Welding Machine**
**Features**
1. Utilizes IGBT inverter technology with air-cooling, ensuring stable and reliable performance, high efficiency, and energy savings.
2. Cost-effective and easy to operate, making it ideal for both professionals and beginners.
3. Features advanced control solutions that significantly enhance welding performance, meeting the demands of modern welding engineering.
4. Widely applicable for various acid and alkaline electrodes, offering flexibility in different welding scenarios.
5. Easy arc starting, minimal spatter, stable current output, and excellent weld bead appearance.
6. Equipped with overvoltage and overcurrent protection for enhanced safety during operation.
**Technical Specifications**
| Model No. | ZX7-250 | ZX7-300 | ZX7-400 | ZX7-500 | ZX7-400(S) | ZX7-500(S) |
|-------------------|---------------|---------------|---------------|---------------|---------------|---------------|
| Rated Input Voltage (V) | 3 PH 380 | 3 PH 380 | 3 PH 380 | 3 PH 380 | 3 PH 380 | 3 PH 380 |
| Output Current Range (A) | 20–250 | 20–300 | 20–315 | 20–315 | 20–400 | 20–400 |
| Thrust Adjustment Range (A) | 0–140 | 0–140 | 0–140 | 0–140 | 0–140 | 0–140 |
| Floating Voltage (V) | 65±5 | 65±5 | 65±5 | 65±5 | 65±5 | 65±5 |
| Duty Cycle (%) | 60 | 60 | 60 | 60 | 60 | 60 |
| Efficiency (%) | 85 | 85 | 85 | 85 | 85 | 85 |
| Power Factor (cosφ) | 0.93 | 0.93 | 0.93 | 0.93 | 0.93 | 0.93 |
| Shell Protection Class | IP21 | IP21 | IP21 | IP21 | IP21 | IP21 |
| Insulation Class | F | F | F | F | F | F |
| Dimensions (mm) | 442×190×305 | 442×190×305 | 442×190×305 | 442×190×305 | 442×190×305 | 442×190×305 |
| Weight (kg) | 17 | 17 | 17 | 17 | 17 | 17 |
**Product Selection Guide**
- **Materials**: Low-carbon steel, stainless steel, low-alloy steel
- **Plate Thickness (mm)**: 2.0–8.0 (for ZX7-250, ZX7-300), 2.0–10 (for ZX7-400, ZX7-500), 2.0–12 (for ZX7-400(S), ZX7-500(S))
- **Electrode Diameter (mm)**: 1.6–4.0 (for most models), 1.6–5.0 (for ZX7-400(S), ZX7-500(S))
This inverter welding machine is designed for versatility, durability, and precision, making it a great choice for industrial and professional use. Whether you're working on structural steel, automotive repairs, or construction projects, the ZX7 series offers reliable performance and ease of use. Its compact design and efficient power management make it suitable for both indoor and outdoor applications. With built-in safety features and advanced control systems, it ensures a smooth and consistent welding experience every time.