Benefits

Increased Productivity: Faster welding speeds and reduced rework time
Superior Weld Quality: Precise control and minimal spatter for exceptional results
Unmatched Versatility: Weld a wide range of materials and thicknesses with ease
User-Friendly Operation: Simple to set up and use, even for less experienced welders
urable Construction: Built to last in demanding environments

Unleash Peak Performance with the Migatronic Sigma One 400v MIG Welder Kit
Elevate your welding projects to the next level with the industry-leading Migatronic Sigma One 400v MIG Welder Kit. This robust and versatile machine is designed for both light and heavy-duty applications, empowering professional welders and fabrication shops to achieve exceptional results.
The Migatronic Sigma One 400v boasts a powerful inverter technology that delivers unmatched arc control and consistent weld quality. Whether you're tackling thick steel structures, prefabrication projects, or intricate stainless steel work, this machine offers the precision and power you demand.

Features
26b61934="">Application class
S/CE
S/CE
S/CE


<span>Protection class</span>
IP 23S
IP 23
IP 23


<span>Standard</span>
IEC60974-1. IEC60974-10 Cl. A
IEC60974-1. IEC60974-10 Cl. A
IEC60974-1. IEC60974-10 Cl. A


<span>Dimensions C (HxWxL) </span>
700 mm × 260 mm × 735 mm
700 mm × 260 mm × 735 mm
700 mm × 260 mm × 735 mm


<span>Dimensions S (HxWxL) </span>
454 mm × 260 mm × 735 mm
454 mm × 260 mm × 735 mm
454 mm × 260 mm × 735 mm


<span>weight C ex. trolley</span>
36.9 kg
52
53


<span>weight S ex. trolley</span>
26 kg
35
36




The Migatronic Sigma One 400v MIG Welder Kit is an investment in quality, performance, and efficiency. With its cutting-edge technology and robust construction, this machine empowers professional welders to achieve superior results on even the most demanding projects.

Don't settle for anything less! Order your Migatronic Sigma One 400v MIG Welder Kit today and experience the difference that industry-leading welding technology can make.
High Duty Cycle: Weld for extended periods without compromising performance. The Migatronic Sigma One 400v delivers a duty cycle of up to 100% at 20°C, ensuring productivity remains high even on demanding jobs.
Synergic Control: Simplify your workflow with intuitive controls. The machine automatically adjusts welding parameters based on your selected wire diameter and material thickness, minimising setup time and maximising consistency.
Pulse Welding: Achieve superior weld quality on thin materials with pulse welding functionality. This technique reduces heat input, minimising distortion and spatter for cleaner, more precise welds.
Separate Wire Feeder: Enhance maneuverability and operator comfort with the separate wire feeder unit. This versatile configuration allows for easier manipulation of the torch, particularly during welding on large structures or in confined spaces.
Software Updates: Stay ahead of the curve with easy software updates via SD card. Migatronic continuously improves the Sigma One's performance and functionality, ensuring you always have access to the latest welding technology.
IGBT Inverter Technology: Benefit from superior arc stability, energy efficiency, and a compact design thanks to the advanced IGBT inverter technology. This technology ensures a consistent and reliable welding performance while minimising power consumption.
Wide Input Voltage Tolerance: Adapt to varying power supply conditions with the machine's wide input voltage tolerance. This feature ensures reliable operation even in environments with unstable power grids, preventing interruptions and maintaining consistent weld quality.
4-Roll Wire Feed System: Experience smooth and consistent wire feeding with the robust 4-roll wire feed system. This system minimises wire slippage and ensures a stable arc, even when using thicker or softer wires, leading to improved weld quality and reduced downtime.
Gas Test Function: Simplify setup and maintenance with the integrated gas test function. This feature allows you to easily check gas flow and ensure proper shielding gas coverage, preventing weld defects and ensuring optimal weld quality.
Burn-Back Control: Minimise wire sticking and improve arc starting with the adjustable burn-back control. This feature automatically adjusts the wire feed after welding, preventing the wire from sticking to the workpiece and ensuring a clean and consistent start every time.
Job Memory (Optional) : Save and recall your preferred welding parameters with the optional job memory function. This feature allows you to quickly switch between different welding applications, saving time and ensuring consistent results.
Water Cooling Option: For high-duty cycle applications or welding with high currents, the Sigma One offers a water-cooling option. This prevents overheating and ensures optimal performance even under demanding conditions.
Digital Display: The clear digital display provides precise control and easy monitoring of welding parameters. This ensures accurate settings and allows for quick adjustments, leading to improved weld quality and consistency.
IP23S Protection Class: The machine is designed for use in demanding environments with an IP23S protection class, which means it is protected against solid objects larger than 12.5 mm and spraying water. This ensures reliable operation even in harsh conditions.

Applications
Steel fabrication
Structural welding
Shipbuilding
Pressure vessel construction
Automotive repair
And more!

Ordering
<strong>230/270</strong>



Part No.
Description




79542910
Compact - 230A - Air Cooled


79542912
Compact - 230A - Boost - Air Cooled


79542915
Compact - 270A - Air Cooled


79542917
Compact - 270A - Boost - Air Cooled


79542920
Compact - 270A - Pulse - Air Cooled


79542922
Compact - 270A - Pulse - Boost - Air Cooled



Includes synergic, DUO Plus, MigaMEM, standard program package, 8.5m main supply cable, 3m earth cable 35mm² with clamp, 2.2m diffusion-slow gas hose, wire drive rolls 0.8V, handle, torch holder (left) , trolley w/bottle carrier & chain and LED light in wire console.



79542410
Compact - 300A - Air Cooled


79542415
Compact - 300A - Pulse - Air Cooled


79542420
Compact - 300A - Water Cooled


79542425
Compact - 300A - Pulse - Water Cooled


79542430
Compact - 400A - Air Cooled


79542435
Compact - 400A - Pulse - Air Cooled


79542440
Compact - 400A - Water Cooled


79542445
Compact - 400A - Pulse - Water Cooled


79542450
Compact - 550A - Air Cooled


79542455
Compact - 550A - Pulse - Air Cooled


79542460
Compact - 550A - Water Cooled


79542465
Compact - 550A - Pulse - Water Cooled




Includes synergic, DUO Plus, MigaMEM, program package standard, 8.5m mains supply cable, 3m earth cable w/clamp, 2.2m diffusion-slow gas hose, wire drive rolls, handle, torch holder , trolley with bottle carrier chain and LED light in wire console.

Watercooled standard packages include water module with flow control.



79542470
Separate - 300A - Air Cooled


79542475
Separate - 300A - Pulse - Air Cooled


79542480
Separate - 300A - Water Cooled


79542485
Separate - 300A - Pulse - Water Cooled


79542490
Separate - 400A - Air Cooled


79542495
Separate - 400A - Pulse - Air Cooled


79542500
Separate - 400A - Water Cooled


79542505
Separate - 400A - Pulse - Water Cooled


79542510
Separate - 550A - Air Cooled


79542515
Separate - 550A - Pulse - Air Cooled


79542520
Separate - 550A - Water Cooled


79542525
Separate - 550A - Pulse - Water Cooled




Includes synergic, DUO Plus, MigaMEM, program package standard, 1.5m interconnection with quick connection, 8.5m mains supply cable, 3m earth cable with clamp, 2.2m diffusion-slow gas hose, wire drive rolls, handle, torch holder, trolley with bottle carrier, chain and LED light in wire console.

Water cooled standard packages include water module with flow control.

Note. Other configurations are available: control panel, welding programs, gas flow control, torch, earth cable, electrode cable, wire feed roll, power plug and accessories.&nbsp;Please contact us

Specifications
Compact
























<table class="data-table"><thead><tr><th>
</th><th class="value-cell"><span class="header">230</span> <span class="subheader">Compact</span>
</th><th class="value-cell"><span class="header">270</span> <span class="subheader">Compact</span>


</th></tr></thead><tbody><tr><td><span>Current range</span>
</td><td class="value-cell">15-230 A
</td><td class="value-cell">15-270 A

</td></tr><tr><td><span>Mains voltage +/- 15 %</span>
</td><td class="value-cell">3 × 400 V
</td><td class="value-cell">3 × 400 V

</td></tr><tr><td><span>Fuse type C</span>
</td><td class="value-cell">10/16 A
</td><td class="value-cell">10/16 A

</td></tr><tr><td><span>Mains current, effective</span>
</td><td class="value-cell">7.2 A
</td><td class="value-cell">8.5 A

</td></tr><tr><td><span>Mains current, max.</span>
</td><td class="value-cell">10.5 A
</td><td class="value-cell">13.2 A

</td></tr><tr><td><span>Power, 100%</span>
</td><td class="value-cell">4.9 kVA
</td><td class="value-cell">5.9 kVA

</td></tr><tr><td><span>Power, max.</span>
</td><td class="value-cell">7.2 kVA
</td><td class="value-cell">9.1 kVA

</td></tr><tr><td><span>Open circuit voltage</span>
</td><td class="value-cell">50-60 V
</td><td class="value-cell">50-60 V

</td></tr><tr><td><span>Efficiency</span>
</td><td class="value-cell">88 %
</td><td class="value-cell">88 %

</td></tr><tr><td><span>Power factor</span>
</td><td class="value-cell">0.94
</td><td class="value-cell">0.90

</td></tr><tr><td><span>Duty cycle 100 %/20 °C (MIG) </span>
</td><td class="value-cell">175 A/23.0 V
</td><td class="value-cell">200 A/24.2 V

</td></tr><tr><td><span>Duty cycle max./20 °C (MIG) </span>
</td><td class="value-cell">230 A/40 %/25.5 V
</td><td class="value-cell">270 A/28 %/27.5 V

</td></tr><tr><td><span>Duty cycle 100 %/40 °C (MIG) </span>
</td><td class="value-cell">175 A/23.0 V
</td><td class="value-cell">200 A/24.2 V

</td></tr><tr><td><span>Duty cycle 60 %/40 °C (MIG) </span>
</td><td class="value-cell">205 A/24.3 V
</td><td class="value-cell">210 A/24.5 V

</td></tr><tr><td><span>Duty cycle max./40 °C (MIG) </span>
</td><td class="value-cell">230 A/40 %/25.5 V
</td><td class="value-cell">270 A/28 %/27.5 V

</td></tr><tr><td><span>Application class</span>
</td><td class="value-cell">S/CE
</td><td class="value-cell">S/CE

</td></tr><tr><td><span>Protection class</span>
</td><td class="value-cell">IP 23S
</td><td class="value-cell">IP 23S

</td></tr><tr><td><span>Standard</span>
</td><td class="value-cell">IEC60974-1. IEC60974-5. IEC60974-10 Cl. A
</td><td class="value-cell">IEC60974-1. IEC60974-5. IEC60974-10 Cl. A

</td></tr><tr><td><span>Dimensions C (HxWxL) </span>
</td><td class="value-cell">675 mm x 250 mm x 738 mm
</td><td class="value-cell">675 mm x 250mm x 738 mm

</td></tr><tr><td><span>Weight C</span>
</td><td class="value-cell">32.5 Kg
</td><td class="value-cell">32.5 Kg






















<table class="data-table"><thead><tr><th>
</th><th class="value-cell"><span class="header">300</span> <span class="subheader">Compact & Separate</span>
</th><th class="value-cell"><span class="header">400</span> Compact & Separate
</th><th class="value-cell"><span class="header">550 Compact & Separate</span>


</th></tr></thead><tbody><tr><td><span>Current range</span>
</td><td class="value-cell">15-300 A
</td><td class="value-cell">15-400 A
</td><td class="value-cell">15-550

</td></tr><tr><td><span>Mains voltage +/- 15 %</span>
</td><td class="value-cell">3 × 400 V
</td><td class="value-cell">3 × 400 V
</td><td class="value-cell">3 × 400 V

</td></tr><tr><td><span>Fuse type C</span>
</td><td class="value-cell">16 A
</td><td class="value-cell">20 A
</td><td class="value-cell">35 A

</td></tr><tr><td><span>Mains current, effective</span>
</td><td class="value-cell">10.5 A
</td><td class="value-cell">17.5 A
</td><td class="value-cell">27.2 A

</td></tr><tr><td><span>Power, 100%</span>
</td><td class="value-cell">9.0 kVA
</td><td class="value-cell">12.1 kVA
</td><td class="value-cell">18.9 kVA

</td></tr><tr><td><span>Efficiency</span>
</td><td class="value-cell">85 %
</td><td class="value-cell">85%
</td><td class="value-cell">90 %

</td></tr><tr><td><span>Power factor</span>
</td><td class="value-cell">0.9
</td><td class="value-cell">0.9
</td><td class="value-cell">0.9

</td></tr><tr><td><span>Minimum generator size</span>
</td><td class="value-cell">16 kVA
</td><td class="value-cell">27 kVA
</td><td class="value-cell">40 kVA

</td></tr><tr><td><span>Duty cycle 100 %/20 °C (MIG) </span>
</td><td class="value-cell">290 A/28.5 V
</td><td class="value-cell">345 A/31.5 V
</td><td class="value-cell">475/37.8

</td></tr><tr><td><span>Duty cycle max./20 °C (MIG) </span>
</td><td class="value-cell">
</td><td class="value-cell">400 A/65 %/34.0 V
</td><td class="value-cell">550 A/60 %/41.5 V

</td></tr><tr><td><span>Duty cycle 100 %/40 °C (MIG) </span>
</td><td class="value-cell">220 A/25.0 V
</td><td class="value-cell">300 A/29.0 V
</td><td class="value-cell">430 A/35.5 V

</td></tr><tr><td><span>Duty cycle 60 %/40 °C (MIG) </span>
</td><td class="value-cell">230 A/25.5 V
</td><td class="value-cell">370 A/32.5 V
</td><td class="value-cell">510 A/39.5 V

</td></tr><tr><td><span>Duty cycle max./40 °C (MIG) </span>
</td><td class="value-cell">300 A/25 %/29.0 V
</td><td class="value-cell">400 A/50 %/34.0 V
</td><td class="value-cell">550 A/50 %/41.5 V

</td></tr><tr><td></td></tr></tbody></table></td></tr></tbody></table>