1ph MMA 250
Powerful Performance | Excellent Arc Stability
Powerful single-phase arc welding machine built for high performance and efficiency in industrial and heavy-duty applications. Features advanced IGBT inverter technology with 250A output, 60% duty cycle, self-adaptive arc force, VRD protection (24V), and auto voltage compensation for unstable power supply areas.
High Performance Power
Powerful 250A output with 60% duty cycle for heavy-duty industrial welding, structural fabrication, construction, and repair tasks. Robust 12kg design with 457×228×373mm dimensions ensures stability for workshop and on-site welding projects.
Advanced IGBT Inverter
Self-adaptive arc force automatically adjusts for easier welding and improved consistency. Features hot start, anti-stick technology for easy electrode removal, and stable efficient welding with low power consumption and energy savings.
Intelligent Protection System
VRD protection (24V) with switchable function enhances operator safety and prolongs machine life. Auto voltage compensation for unstable power supply. Overload and overheat protection with IP23S protection class and Grade H insulation. Optional remote control up to 50m.
| Parameter | Unit | Specification |
|---|---|---|
| Power Supply | ||
| Input Voltage Range | V | 1-Phase 220V AC ±10% |
| Rated Input Power | kVA | 9.29 |
| Output Characteristics | ||
| Output Current Control | - | Constant Current (CC) |
| Maximum Output Current | A | 250 |
| No-Load Voltage | V | 75 |
| VRD Voltage | V | 24 |
| VRD Function | - | Switchable |
| Performance Specifications | ||
| Rated Duty Cycle @ 40°C | % | 60% @ 250A |
| Technology & Features | ||
| Hot Start Function | - | Available |
| Standards & Certification | ||
| Ingress Protection | - | IP23S |
| Insulation Class | - | Class H |
| Physical Specifications | ||
| Dimensions (L × W × H) | mm | 457 × 228 × 373 |
| Net Weight | kg | 12.0 |
Product Overview
The 1PH MMA 250 is a powerful single-phase inverter arc welding machine designed for professional and heavy-duty industrial applications. Its robust construction, advanced IGBT inverter technology, and comprehensive safety features make it an ideal choice for demanding welding tasks. Built to handle a wide range of applications, the MMA 250 ensures superior arc stability and reliable performance even under challenging conditions with 60% duty cycle at 250A output.
🏆 Maximum Single-Phase Power: 250A Output
Delivers 250A maximum output at 60% duty cycle (40°C)—the ultimate single-phase welding solution for heavy-duty industrial operations. Advanced IGBT architecture ensures superior arc stability, exceptional efficiency, and reliable high-performance operation for demanding construction, structural welding, and heavy machinery maintenance applications.
🎯 Designed For
Professional welders, industrial users, heavy-duty fabrication shops, construction professionals, and maintenance operations requiring reliable 250A welding power with 60% duty cycle and enhanced safety features for extended welding sessions.
⚡ Core Technology
Advanced IGBT inverter technology ensures superior arc stability, efficient power conversion, and consistent welding output. VRD protection (24V) with switchable function and IP23S rating for safe operation in demanding industrial environments.
🛡️ Safety First
Comprehensive protection systems including VRD (switchable ON/OFF), overload, overvoltage, overcurrent protection, IP23S protection class, and Grade H insulation for maximum safety and durability in industrial applications.
Key Features
Industrial-grade engineering for exceptional heavy-duty performance
⚙️ Advanced IGBT Inverter Technology
Ensures high efficiency and consistent welding output, resulting in superior arc stability and reduced power consumption. Delivers professional-grade performance with 250A maximum output and constant current control for demanding applications.
💪 Heavy-Duty Performance
Built for industrial applications with 250A maximum output and robust construction. Designed to handle the most demanding welding tasks with superior reliability and consistent performance across extended operations.
⏱️ High Duty Cycle
Designed to handle long welding sessions with 60% duty cycle at 250A (40°C ambient temperature), ensuring greater productivity with minimal downtime. Perfect for demanding professional and industrial applications requiring continuous operation.
🎛️ User-Friendly Interface
Simple controls for adjusting current and easy operation, suitable for both experienced professionals and skilled welders. Intuitive design reduces complexity while maintaining professional capabilities and precise control.
🛡️ Multiple Protection Systems
Equipped with overload, overvoltage, and overcurrent protection to ensure safety and long-term durability. VRD protection (24V) with switchable ON/OFF control, IP23S protection class, and Grade H insulation provide comprehensive safety.
🔥 Wide Range of Applications
Capable of welding a variety of metals, including mild steel, stainless steel, and alloys, making it versatile for different industrial welding tasks. Hot start function ensures easy arc initiation on all materials and surfaces.
250A Maximum Output
Delivers 250A maximum output current with constant current (CC) control for consistent arc performance and professional-grade weld quality across varying conditions and material thicknesses.
VRD Safety (24V)
Voltage Reduction Device reduces no-load voltage from 75V to safe 24V level with switchable ON/OFF control, enhancing operator safety and prolonging machine lifespan through reduced electrical stress.
Hot Start Function
Provides extra current during arc initiation for smooth starts every time, particularly useful for difficult-to-start electrodes and ensuring easy arc ignition on various materials and surfaces.
IP23S Protection
IP23S ingress protection rating and Grade H insulation class ensure reliable operation in various industrial working environments with enhanced protection against dust and water ingress.
Constant Current Control
CC (Constant Current) output control maintains preset welding current for consistent arc performance and weld quality across varying conditions, materials, and thicknesses.
Single-Phase Operation
1-phase 220V AC ±10% rated input voltage makes it compatible with standard electrical outlets, providing professional 250A performance without requiring three-phase power infrastructure.
Energy Efficient
9.29kVA rated input power ensures efficient operation with reduced electricity costs while maintaining professional welding performance and superior arc characteristics for industrial applications.
Superior Arc Stability
Advanced IGBT architecture provides enhanced arc stability and consistent welding output, ensuring professional-grade results even in challenging conditions and extended welding sessions.
Auto Voltage Compensation
Automatically compensates for voltage fluctuations, making the machine suitable for use in areas with unstable power supply while maintaining consistent welding performance.
Self-Adaptive Arc Force
Intelligent real-time arc force regulation automatically adjusts parameters, ensuring smoother operation, minimized spatter, and consistent weld quality across varying conditions.
Anti-Stick Function
Advanced electrode management provides easy removal and reliable arc ignition, even in challenging conditions and difficult surface preparations, reducing electrode sticking issues.
Industrial-Grade Reliability
Built to handle demanding professional and industrial applications with robust construction, comprehensive protection systems, and high duty cycle for continuous heavy-duty operation.
Applications
Heavy-duty versatility across demanding industrial operations
🏭 Heavy-Duty Industrial Welding
Perfect for demanding industrial welding projects requiring consistent quality and high power. The 250A output with 60% duty cycle handles extended welding sessions on various materials including mild steel, stainless steel, and alloys in manufacturing environments.
🏗️ Structural Fabrication & Construction
Ideal for structural steel fabrication and construction projects requiring high amperage and reliable performance. VRD protection and IP23S rating ensure safe operation in demanding outdoor environments with enhanced protection against dust and water.
🔧 Maintenance & Repair Operations
Hot start function ensures easy arc initiation for repair work on heavy equipment and industrial machinery. Multiple protection systems provide reliable performance for critical maintenance tasks in industrial and commercial facilities.
🏢 Workshop & On-Site Projects
Versatile performance for both workshop and on-site welding projects. Auto voltage compensation ensures consistent operation in areas with unstable power supply, making it suitable for diverse working environments and challenging conditions.
Accessories (Optional)
Industrial-grade components with customizable specifications
25mm² Pure Copper Cables (Customizable Length)
Heavy-duty electrode holder and earth clamp with premium pure copper conductors. Customizable cable length for optimal reach and flexibility in demanding industrial operations.
Remote Control (Cable Length up to 50m)
Optional remote control system enables flexible operation from extended distances, enhancing productivity and safety in diverse industrial work environments.
💡 Technical Note: 25mm² pure copper cables deliver superior electrical conductivity and extended service life compared to CCA alternatives, ensuring optimal performance for continuous heavy-duty 250A operations at 60% duty cycle.
Summary
The 1PH MMA 250 integrates advanced IGBT inverter technology with heavy-duty industrial construction to deliver exceptional high-output performance in a 12.0kg package. Featuring 250A maximum output, 60% duty cycle at 40°C, and superior arc characteristics, this system excels in heavy-duty industrial welding, construction and structural welding, heavy machinery repair and maintenance, and demanding workshop fabrication tasks. Key technologies include self-adaptive arc force, anti-stick and hot start functions, switchable VRD protection (24V), intelligent voltage compensation, and comprehensive overload/overheat safeguards. IP23S protection and Grade H insulation ensure reliable operation in demanding industrial environments. Professional dimensions (457×228×373mm) with robust construction deliver optimal durability. Single-phase 220V AC ±10% operation with 9.29kVA rated input power eliminates three-phase infrastructure requirements while delivering maximum single-phase welding power. Optional accessories feature 25mm² pure copper cables (customizable length) and remote control capability (up to 50m cable length) for enhanced operational flexibility. Constant current control maintains precise welding parameters for consistent arc performance and exceptional weld quality. The 1PH MMA 250 represents the ultimate single-phase welding solution for professionals requiring maximum 250A power, superior reliability, and heavy-duty industrial performance.
🏆 Ultimate Single-Phase Power: 250A Maximum Output
The 1PH MMA 250 delivers exceptional 250A maximum output at 60% duty cycle—the ultimate single-phase welding solution for heavy-duty industrial welding, construction, structural fabrication, and heavy machinery maintenance requiring maximum power without three-phase infrastructure.
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Core Advantages
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Advanced Technology
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Reliable Performance
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Key Benefits
Comprehensive Range
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Proven Excellence
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