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ZX7-200/250/400
Portable Inverter DC Arc Welder
The ZX7 series uses current-mode control and digital display to provide strong arc starting, deep weld pool performance, clean weld formation and low spatter.
Single-tube IGBT inverter and high-frequency control
Hot Start and adjustable Arc Force
Digital current preset and easy arc starting
Portable, lightweight and energy-efficient design
Technical Consulting & Solution Support
For solution design, custom engineering and field issues, we respond within 24 hours with practical recommendations.
Product Details
Performance Features
1. Uses single-tube IGBT inverter technology with current-mode control. 2. Good arc-starting performance, with adjustable hot-start current and arc force. 3. Current preset function with digital display. 4. Stable welding process with low spatter, deep weld pool and good bead formation. 5. Compact, lightweight and easy to carry.
Technical Specifications
| Item | ZX7-200 | ZX7-250 | ZX7-400 |
|---|---|---|---|
| Rated input voltage range | 1Φ AC220V ±10% | 3Φ AC380V ±10% | 3Φ AC380V ±10% |
| Frequency | 50/60 Hz | 50/60 Hz | 50/60 Hz |
| Rated input capacity | 6.2 KVA | 9.5 KVA | 15 KVA |
| Rated input current | 31 A | 14 A | 22 A |
| Rated duty cycle | 60% | 60% | 60% |
| Welding current range | 20-200 A | 20-250 A | 20-320 A |
| Rated load voltage | 28 V | 30 V | 34 V |
| Standard | GB15579 / IEC60974-1 | GB15579 / IEC60974-1 | GB15579 / IEC60974-1 |
| Insulation class | F | F | F |
| Enclosure protection | IP21S | IP21S | IP21S |
| Dimensions (W×H×D) | 165 × 290 × 420 mm | 212 × 345 × 445 mm | 240 × 400 × 520 mm |
| Weight | 9 kg | 12 kg | 17 kg |
Applications
- Work environments: outdoor construction, high-altitude work, field repair and mobile welding stations
- Industry applications: construction and decoration, hardware processing, steel structure installation, pipeline repair and light industrial manufacturing
- Applicable materials: carbon steel, low-alloy steel and stainless steel with matching electrodes


