MMA-400SiC
Silicon Carbide Technology Overview
Advanced SiC Power Electronics
Integrating next-generation Silicon Carbide semiconductor technology to deliver superior performance, enhanced efficiency, and compact power density in professional welding systems.
Engineering Excellence
Developing advanced welding systems through systematic innovation methodologies, precision engineering practices, and comprehensive technical validation protocols that exceed industry performance benchmarks.
Manufacturing Precision
Operating state-of-the-art production facilities with integrated quality management systems, advanced automation technologies, and rigorous process controls ensuring consistent product excellence.
Global Distribution Network
Delivering comprehensive equipment solutions through strategic logistics infrastructure, providing expedited international shipping, technical consultation services, and dedicated customer support worldwide.
| Parameter | Unit | Specification |
|---|---|---|
| Power Supply | ||
| Power Frequency | Hz | 50/60 |
| Input Voltage Range | V | 3-Phase 380V AC ±15% |
| Recommended Input Voltage | V | 330~430 |
| Rated Input Capacity | kVA | 18.0 |
| Rated Input Current | A | 36 |
| Output Characteristics | ||
| Output Current Control | - | Constant Current (CC) |
| Welding Current Range | A | 0~400 |
| No-Load Voltage | V | 75 |
| VRD Voltage | V | 24 |
| VRD Function | - | Switchable |
| Performance Specifications | ||
| Rated Duty Cycle @ 40°C | % | 100% @ 400A |
| Efficiency | % | 85 |
| Power Factor | - | 0.80 |
| Technology & Features | ||
| Inverter Technology | - | Silicon Carbide (SiC) |
| Hot Start Function | - | Adjustable |
| Arc Force Control | - | Adjustable |
| Remote Control Interface | - | Available |
| Digital Display | - | Current & Voltage |
| Welding Process | - | MMA / Arc Gouging |
| Electrode Diameter | mm | Ø2.5~Ø5.0 |
| General Features | ||
| Quick Connector Type | - | DIN 50-70 |
| Protection System | - | Thermal Overload |
| Cooling Method | - | Forced Air |
| Carrying Handle | - | Integrated |
| Standards & Certification | ||
| Insulation Class | - | Class H |
| Ingress Protection | - | IP23S |
| Physical Specifications | ||
| Dimensions (L × W × H) | mm | 467 × 219 × 366 |
| Net Weight | kg | 11.3 |
| Gross Weight | kg | 12.65 |
Product Overview
The MMA-400SiC delivers 400A output with 100% duty cycle at 40°C. Silicon Carbide semiconductor technology enables high-frequency operation (up to 100kHz), 85% efficiency, and compact 11.3kg design. Supports MMA welding and carbon arc gouging processes with adjustable arc force and hot start capabilities.
Silicon Carbide (SiC) Technology
SiC semiconductors operate at high frequency (up to 100kHz) versus traditional 20-30kHz, providing superior switching speed, 85% efficiency, and reduced power loss compared to traditional IGBT technology. Sibitweld is the first company to implement SiC technology in professional welding equipment, achieving 100% duty cycle at 400A in a 11.3kg package—significantly lighter than conventional units.
Target Applications
Industrial welding, fabrication shops, construction sites, manufacturing facilities, and mobile welding operations requiring 400A continuous output. Ideal for professionals demanding reliable performance in challenging environments.
Core Technology
SiC technology at high frequency (up to 100kHz) with 85% efficiency, 100% duty cycle at 400A, 0.8 power factor. Dimensions: 467×219×366mm, weight: 11.3kg.
Protection Systems
Overheat protection, IP23S rating, Grade H insulation, voltage tolerance 320-415V for generator operation (recommended 50kW+ generator).
Key Features
SiC Technology
High-frequency operation (up to 100kHz) with 85% efficiency and reduced power loss compared to traditional IGBT technology.
100% Duty Cycle
Continuous welding at 400A without cooling breaks at 40°C ambient temperature for extended welding sessions.
Compact Design
467×219×366mm dimensions, 11.3kg weight—significantly lighter than conventional units for easy portability.
Adjustable Controls
Arc force (0-100A) and hot start (0-100A) adjustment for various welding conditions and electrode types.
Arc Performance
Smooth operation at low currents, minimal spatter at high currents, consistent penetration across all amperage ranges.
Electrode Compatibility
Handles acidic and alkaline electrodes, Ø2.5-5.0mm rod diameter range for versatile welding applications.
Long Cable Support
Supports cable lengths up to 50 meters for extended reach operations and remote welding locations.
Generator Compatible
320-415V input range (±15% tolerance). Recommended generator: 50kW minimum for optimal performance.
85% Efficiency
0.8 power factor, 18kVA rated input capacity, 36A rated input current for reduced energy consumption.
VRD Safety
Voltage Reduction Device reduces open-circuit voltage to 24V for enhanced operator safety with ON/OFF switch.
Remote Control
REM switch allows for remote control or pedal use for enhanced process control without being at the machine.
Digital Display
Dual digital displays for voltage (V) and current (A) provide clear, precise readouts for accurate monitoring.
Multi-Process
Supports MMA welding and carbon arc gouging for versatile metalworking applications and material removal.
Quick Connector
50-70 quick connector system for fast and secure cable connections, reducing setup time.
Portable Handle
Integrated handle for easy transport and mobility across job sites and work locations.
Material Compatibility
Applications
Ironwork & Fabrication
- Ironwork production
- Door and window processing
- Fence manufacturing
- Metal cabinet production
- Steel furniture manufacturing
Construction & Installation
- Building installation
- Interior decoration
- Renovation projects
- Structural welding
- Equipment installation
Repair & Maintenance
- Machinery repair
- General mechanical repairs
- Agricultural machinery
- Automotive maintenance
- Motorcycle repair
Summary
The MMA-400SiC combines SiC technology with 100% duty cycle at 40°C, 85% efficiency, and professional welding capabilities in a 11.3kg package. Features include high-frequency operation (up to 100kHz), adjustable arc force (0-100A) and hot start (0-100A), VRD safety (24V with ON/OFF switch), remote control capability, and generator compatibility (320-415V input range with ±15% tolerance). Supports Ø2.5-5.0mm welding rods and cable lengths up to 50m. Multi-process capability includes MMA welding and carbon arc gouging. Suitable for carbon steel, low alloy steel, stainless steel, and cast iron welding applications across ironwork, construction, metal furniture, machinery repair, and automotive maintenance sectors. Quick connector system (50-70) and integrated handle provide enhanced portability and convenience.
Industry-First SiC Technology
Sibitweld is the first company to implement Silicon Carbide technology in professional welding equipment, delivering superior performance with 18kW continuous power output in a compact, lightweight package.
Why Choose Sibit Welding Equipment?
Partner with Sibit for industry-leading welding equipment that delivers precision, reliability, and performance in every weld.
Core Advantages
Precision Engineering
Experience superior weld quality through meticulously engineered equipment designed to deliver consistent, accurate results in every application.
Advanced Technology
Boost productivity and efficiency with cutting-edge welding technology that streamlines operations and maximizes output.
Reliable Performance
Count on uninterrupted operation with robust equipment built for demanding industrial environments and continuous use.
Key Benefits
Comprehensive Range
Access a complete selection of equipment and accessories tailored to meet all your welding requirements and applications.
Expert Support
Benefit from dedicated technical assistance and professional service ensuring optimal performance and maximum uptime.
Proven Excellence
Trust in equipment backed by rigorous quality control and industry-leading standards for consistent results.
Partner with Sibit for Excellence
Discover industry-leading welding equipment that delivers precision, reliability, and performance in every weld. Our commitment to quality and innovation ensures your success.
Contact us today to learn more about our products and how they can transform your welding operations and drive business growth.
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