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Created on 06.04
ZX7-318K Inverter DC MMA Welding Machine | 220V/380V Dual Voltage Portable IGBT Welder
The ZX7-318K Inverter DC MMA Welding Machine is a lightweight and high-cost-performance model in our MMA welder series. Equipped with mature IGBT single-tube main circuit technology, the machine runs safely and stably with low failure rate. It supports full 220V/380V dual voltage compatibility, adapting to various complex power supply environments from household electricity to industrial site electricity.
With the design of small size and light weight, the ZX7-318K realizes small body with huge power. It delivers stable DC welding output and outstanding welding performance, meeting the basic and medium-duty welding demands. Compact and easy to carry, it is an ideal portable welding tool for individual welders, decoration construction and equipment maintenance.
Core Technical Features
1. Reliable IGBT Single-tube Multi-board StructureAdopts professional IGBT inverter circuit design, with stable operation, strong anti-interference ability and long service life. The optimized circuit layout ensures continuous and stable power output during daily welding work.
2. Full Universal Voltage AdaptationSupports 220V single-phase, 380V single-phase and 380V three-phase multi-power input. It can be used normally in home, workshop and outdoor construction sites without extra voltage conversion equipment.
Comprehensive Multi-protection SystemBuilt-in over-heat, over-current, over-voltage and under-voltage four-way safety protection. The machine will automatically trigger power-off protection under abnormal conditions, effectively avoiding equipment damage and ensuring safe construction.
Efficient Full-duct Heat DissipationConfigured with high-speed full-duct cooling fan, which accelerates internal air circulation, quickly removes operating heat, prevents high-temperature overload and ensures long-term stable operation of the equipment.
Stable & Efficient Welding PerformanceFeatures uniform and stable welding current, concentrated arc energy and deep welding penetration. It ensures firm welding seam and smooth forming, effectively improving overall welding efficiency and finished product quality.
Lightweight & Flexible ApplicationThe whole machine is compact in structure and ultra-light in weight, easy to move and carry. It is highly suitable for mobile outdoor welding and high-altitude operation with strict space and mobility requirements.
Technical Parameters
Parameter Item | ZX7-318K Specification |
Input Power Voltage | 220V / 380V |
Input Rated Capacity | 5.5KVA |
No-Load Voltage | 70V-80V |
Output Working Voltage | 20V-27.2V |
Output Current Range | 20A-180A |
Insulation Grade | F |
Ingress Protection Rating | IP21S |
Rated Duty Cycle | 60% |
Net Weight | 5.1KG |
Overall Dimensions | 307*157*265mm |
Applicable Electrode Size | Φ2.5 – Φ4.0 |
Core Functions | Portable, Air-Cooled, 3 Phase Support, DC Output, Temperature Control Protection |
Installation & Usage Precautions
1. Cable Matching Standard: Adopt 4mm² input power cable and 16-25mm² output welding cable to ensure stable power supply and prevent cable overheating during operation.
2. Power Switch Configuration: Equip with a 40A professional power distribution switch to guarantee safe and stable power supply for the welding machine.
3. Working Environment: The applicable ambient temperature is -10℃ ~ +40℃. Avoid long-term operation in humid, dusty and corrosive environments to protect the equipment and extend service life.
4. Standard Operation Rules: Before starting the machine, please correctly connect the ground wire and power cable. Incorrect connection will lead to equipment failure and potential safety risks.
Application Scenarios
The ZX7-318K DC inverter MMA welding machine is widely used for welding carbon steel, ordinary alloy steel and other metal materials. It is ideal for household maintenance, decoration welding, factory equipment repair, outdoor mobile construction and high-altitude welding work. With lightweight design, stable performance and high cost performance, it is a practical portable welding equipment for individual users and small engineering teams.
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