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- Master M 205, 323
Experience portable power
Enjoy lightweight and portable welding power with no compromises.
Intuitive user interface
Including Weld Assist supporting welders in all situations.
High-quality welding results
Achieve state-of-art welding results with wide-ranging materials and thicknesses.
Portable MIG welding machines for total control anywhere
The Master M 205 and the Master M 323 set new standards for power and performance in a portable MIG welding machine. With a portable, lightweight design that's easy to carry, you'll enjoy having a portable MIG welder that can be moved wherever you need it. If you're working in tight spaces, the 5" LCD screen is bright and easy to read, while self-charging LED lights can be turned on to improve safety. They work with or without mains power.
The Master M 205 and Master M 323 are also easy to use. Both portable MIG welding machines come with Weld Assist, which offers automatic parameter settings that help you start welding quickly. It's a simple solution that welders can also use with minimal experience. Just select the material thickness, joint type, welding position, and start welding.
The Master M 205 is a portable pulse MIG welder with 200 amps of power at a 40% duty cycle. Take on a wider range of materials with pulse welding and do your best work anywhere with the convenience of a 1-phase power supply. Save time and take welding to the next level with 37 built-in MIG/MAG welding programs for Fe, Ss, AlMg5, AlSi5, CuSi3, and CuAl8 filler materials. The Master M 205 comes with 17 programs for pulse MIG and 20 programs for 1-MIG.
The Master M 323 is a high-performance portable MIG welding machine that delivers 320 amps of power at a 40% duty cycle. It's a portable and light small MIG welder ready for big jobs anywhere on site. Improve welding quality and save time with 28 built-in welding programs for Fe, Ss, AlMg5, AlSi5, CuSi3, CuAl8, and FC-CrNiMo filler materials. In addition, the Master M 323 portable MIG welder includes 4 welding programs for the MAX Cool arc welding process.
If you're looking for a portable MIG welder that can complete high-quality welds in challenging environments, the Master M 205 and Master M 323 should be on top of your list.
Videos
Master M 205 GM — Technical data
| Description | Value |
|---|---|
| Mains connection voltage | 220...240 V ±10 % |
| Mains connection voltage (MV low range) | 110...130 V ±10 % |
| Mains connection phases | 1~50/60 Hz |
| Mains connection cable type | H07RN-F |
| Mains connection cable size | 2.5 mm² |
| Maximum supply current (@MV low range) [I1max] | 28 ... 23 A |
| Rated maximum input power [S1max] | 6 kVA |
| Mains fuse | 16 A |
| Mains fuse (@MV low range) | 16 A |
| Idle state power consumption [P1idle] | 17 W |
| No-load state power consumption (MMA), power save | 17 W |
| No-load state power consumption (MMA), fans ON | 120 W |
| Output, duty cycle % at rated max. current, MIG | 40 % |
| Output at +40 °C, rated max current, MIG | 200 A |
| Output at +40 °C, 60% MIG | 170 A |
| Output at +40 °C, 100% MIG | 140 A |
| Output, duty cycle % at rated max. current, MIG (@MV low range) | 30 % |
| Output at +40 °C, rated max current, MIG (@MV low range) | 120 A |
| Output at +40 °C, 60% MIG (@MV low range) | 95 A |
| Output at +40 °C, 100% MIG (@MV low range) | 75 A |
| Output range, MIG | 15 A / 10 V ... 200 A / 28 V |
| Output range, TIG | 15 A / 1 V ... 200 A / 28 V |
| Output range, MMA | 15 A / 10 V ... 175 A / 31 V |
| Output range, MIG (@MV low range) | 15 A / 10 V ... 120 A / 21 V |
| Output range, TIG (@MV low range) | 15 A / 1 V ... 120 A / 21 V |
| Output range, MMA (@MV low range) | 15 A / 10 V ... 100 A / 24 V |
| Voltage adjustment range, MIG | 10 ... 32 V |
| VRD voltage | 24 V |
| Power factor at rated maximum current [λ] | 0.99 |
| Efficiency at rated maximum current [η] | 84 % |
| EMC class | A |
| Voltage supply for cooling unit | 220...240 V, 24 V |
| Welding connection type | Euro |
| Wire feed mechanism | Single-motor, 2-roll |
| Diameter of feed rolls | 32 mm |
| Filler wire diameter, Fe | 0.8 ... 1 mm |
| Filler wire diameter, Ss | 0.8 ... 1 mm |
| Filler wire diameter, Al | 0.8 ... 1.2 mm |
| Wire feed speed | 0.5 ... 25 m/min |
| Maximum wire spool weight | 5 kg |
| Maximum wire spool diameter | 200 mm |
| Maximum shielding gas pressure | 0.5 MPa |
| Control panel, model | Custom LCD |
| Control panel, display | Color LCD |
| Control panel, controls | 2 control knobs, Push buttons |
| Control panel, type of installation | Built-in |
| Control panel, input voltage (DC) | 12 V |
| Operating temperature | -20 ... 40 °C |
| Storage temperature | -40 ... 60 °C |
| Recommended minimum generator power [Sgen] | 15 kVA |
| LED battery type and voltage | SAMSUNG SDI (INR18650-26J; 3,6 V; 2600 mAh); LG CHEM (ICR18650HE4; 3,6 V; 2500 mAh) |
| Degree of protection (fully installed) | IP23S |
| External dimensions, length | 520 mm |
| External dimensions, width | 250 mm |
| External dimensions, height | 379 mm |
| Weight without accessories | 16.2 kg |
| Standards | IEC 60974-1, -10 |
Master M 323 GM — Technical data
| Description | Value |
|---|---|
| Mains connection voltage | 380...460 V ±10 % |
| Mains connection voltage (MV low range) | 220...230 V ±10 % |
| Mains connection phases | 3~50/60 Hz |
| Mains connection cable type | H07RN-F |
| Mains connection cable size | 2.5 mm² |
| Maximum supply current [I1max] | 19 ... 16 A |
| Effective supply current [I1eff] | 12 ... 10 A |
| Rated maximum input power [S1max] | 13 kVA |
| Mains fuse | 16 A |
| Mains fuse (@MV low range) | 32 A |
| Idle state power consumption [P1idle] | 19 W |
| No-load state power consumption (MMA), power save | 16 W |
| No-load state power consumption (MMA), fans ON | 120 W |
| No-load voltage [U0] | 69 ... 90 V |
| No-load voltage (@MV low range) [U0] | 40 ... 42 V |
| Open circuit voltage [Uav] | 66 ... 80 V |
| Output, duty cycle % at rated max. current, MIG | 40 % |
| Output at +40 °C, rated max current, MIG | 320 A |
| Output at +40 °C, 60% MIG | 250 A |
| Output at +40 °C, 100% MIG | 200 A |
| Output, duty cycle % at rated max. current, MIG (@MV low range) | 40 % |
| Output at +40 °C, rated max current, MIG (@MV low range) | 280 A |
| Output at +40 °C, 60% MIG (@MV low range) | 230 A |
| Output at +40 °C, 100% MIG (@MV low range) | 175 A |
| Output range, MIG | 15 A / 10 V ... 320 A / 34 V |
| Output range, TIG | 15 A / 1 V ... 320 A / 34 V |
| Output range, MMA | 15 A / 10 V ... 300 A / 34 V |
| Output range, MIG (@MV low range) | 15 A / 10 V ... 280 A / 32 V |
| Output range, TIG (@MV low range) | 15 A / 1 V ... 280 A / 33 V |
| Output range, MMA (@MV low range) | 15 A / 10 V ... 255 A / 33 V |
| Voltage adjustment range, MIG | 10 ... 40 V |
| VRD voltage | 24 V |
| Power factor at rated maximum current [λ] | 0.91 |
| Efficiency at rated maximum current [η] | 87 % |
| EMC class | A |
| Minimum short-circuit power of supply network [Ssc] | 1.6 MVA |
| Voltage supply for cooling unit | 24 V, 380...460 V |
| Voltage supply for cooling unit (MV low range) | 220...230 V, 24 V |
| Welding connection type | Euro |
| Wire feed mechanism | Single-motor, 2-roll |
| Diameter of feed rolls | 32 mm |
| Filler wire diameter, Fe | 0.8 ... 1.2 mm |
| Filler wire diameter, Ss | 0.8 ... 1.2 mm |
| Filler wire diameter, MC/FC | 1.2 ... 1.2 mm |
| Filler wire diameter, Al | 0.8 ... 1.2 mm |
| Wire feed speed | 0.7 ... 25 m/min |
| Maximum wire spool weight | 5 kg |
| Maximum wire spool diameter | 200 mm |
| Maximum shielding gas pressure | 0.5 MPa |
| Control panel, model | Custom LCD |
| Control panel, display | Color LCD |
| Control panel, controls | 2 control knobs, Push buttons |
| Control panel, type of installation | Built-in |
| Control panel, input voltage (DC) | 12 V |
| Operating temperature | -20 ... 40 °C |
| Storage temperature | -40 ... 60 °C |
| Recommended minimum generator power [Sgen] | 20 kVA |
| LED battery type and voltage | SAMSUNG SDI (INR18650-26J; 3,6 V; 2600 mAh); LG CHEM (ICR18650HE4; 3,6 V; 2500 mAh) |
| Degree of protection (fully installed) | IP23S |
| External dimensions, length | 520 mm |
| External dimensions, width | 250 mm |
| External dimensions, height | 379 mm |
| Weight without accessories | 18.5 kg |
| Standards | IEC 60974-1, -10 |
Master M 205 GM AU — Technical data
| Description | Value |
|---|---|
| Mains connection voltage | 220...240 V ±10 % |
| Mains connection voltage (MV low range) | 110...130 V ±10 % |
| Mains connection phases | 1~50/60 Hz |
| Mains connection cable type | H07RN-F |
| Mains connection cable size | 2.5 mm² |
| Maximum supply current (@MV low range) [I1max] | 28 ... 23 A |
| Rated maximum input power [S1max] | 6 kVA |
| Mains fuse | 16 A |
| Mains fuse (@MV low range) | 16 A |
| Idle state power consumption [P1idle] | 17 W |
| No-load state power consumption (MMA), power save | 17 W |
| No-load state power consumption (MMA), fans ON | 120 W |
| Output, duty cycle % at rated max. current, MIG | 40 % |
| Output at +40 °C, rated max current, MIG | 200 A |
| Output at +40 °C, 60% MIG | 170 A |
| Output at +40 °C, 100% MIG | 140 A |
| Output, duty cycle % at rated max. current, MIG (@MV low range) | 30 % |
| Output at +40 °C, rated max current, MIG (@MV low range) | 120 A |
| Output at +40 °C, 60% MIG (@MV low range) | 95 A |
| Output at +40 °C, 100% MIG (@MV low range) | 75 A |
| Output range, MIG | 15 A / 10 V ... 200 A / 28 V |
| Output range, TIG | 15 A / 1 V ... 200 A / 28 V |
| Output range, MMA | 15 A / 10 V ... 175 A / 31 V |
| Output range, MIG (@MV low range) | 15 A / 10 V ... 120 A / 21 V |
| Output range, TIG (@MV low range) | 15 A / 1 V ... 120 A / 21 V |
| Output range, MMA (@MV low range) | 15 A / 10 V ... 100 A / 24 V |
| Voltage adjustment range, MIG | 10 ... 32 V |
| VRD voltage | 24 V |
| Power factor at rated maximum current [λ] | 0.99 |
| Efficiency at rated maximum current [η] | 84 % |
| EMC class | A |
| Voltage supply for cooling unit | 220...240 V, 24 V |
| Welding connection type | Euro |
| Wire feed mechanism | Single-motor, 2-roll |
| Diameter of feed rolls | 32 mm |
| Filler wire diameter, Fe | 0.8 ... 1 mm |
| Filler wire diameter, Ss | 0.8 ... 1 mm |
| Filler wire diameter, Al | 0.8 ... 1.2 mm |
| Wire feed speed | 0.5 ... 25 m/min |
| Maximum wire spool weight | 5 kg |
| Maximum wire spool diameter | 200 mm |
| Maximum shielding gas pressure | 0.5 MPa |
| Control panel, model | Custom LCD |
| Control panel, display | Color LCD |
| Control panel, controls | 2 control knobs, Push buttons |
| Control panel, type of installation | Built-in |
| Control panel, input voltage (DC) | 12 V |
| Operating temperature | -20 ... 40 °C |
| Storage temperature | -40 ... 60 °C |
| Recommended minimum generator power [Sgen] | 15 kVA |
| LED battery type and voltage | SAMSUNG SDI (INR18650-26J; 3,6 V; 2600 mAh); LG CHEM (ICR18650HE4; 3,6 V; 2500 mAh) |
| Degree of protection (fully installed) | IP23S |
| External dimensions, length | 520 mm |
| External dimensions, width | 250 mm |
| External dimensions, height | 379 mm |
| Weight without accessories | 16.2 kg |
| Standards | IEC 60974-1, -10 |
GX305GS 8m — Technical data
| Description | Value |
|---|---|
| Welding torch cable length | 8 m |
GX 305GMN 3.5m — Technical data
| Description | Value |
|---|---|
| Welding connection type | Euro |
| Type of cooling | Air |
| Contact tip | M10x1 |
| Method of guidance | Manual |
| Load capacity 35% / Ar + 18% CO₂ | 350 A |
| Load capacity test, filler wire diameter | 1.2 mm |
| Load capacity test, stick out length | 18 mm |
| Load capacity test, gas flow | 15 l/min |
| Gun handle | Yes |
| Neck type | Changeable, Rotating |
| Neck dimensions: length | 117 mm |
| Neck dimensions: height | 97 mm |
| Neck dimensions: angle | 50 ° |
| Welding torch cable length | 3.5 m |
| Remote control | GXR10 (optional) |
| Standards | IEC 60974-7 |
GX 255G 3.5m — Technical data
| Description | Value |
|---|---|
| Welding connection type | Euro |
| Type of cooling | Air |
| Contact tip | M6 |
| Method of guidance | Manual |
| Load capacity 35% / Ar + 18% CO₂ | 250 A |
| Load capacity test, filler wire diameter | 1 mm |
| Load capacity test, stick out length | 15 mm |
| Load capacity test, gas flow | 13 l/min |
| Gun handle | Yes |
| Neck type | Rotating |
| Neck dimensions: length | 114 mm |
| Neck dimensions: height | 65 mm |
| Neck dimensions: angle | 40 ° |
| Welding torch cable length | 3.5 m |
| Remote control | GXR10 (optional) |
| Standards | IEC 60974-7 |
GX 253G 5m — Technical data
| Description | Value |
|---|---|
| Welding connection type | Euro |
| Type of cooling | Air |
| Contact tip | M6 |
| Method of guidance | Manual |
| Load capacity 35% / Ar + 18% CO₂ | 250 A |
| Load capacity test, filler wire diameter | 1 mm |
| Load capacity test, stick out length | 15 mm |
| Load capacity test, gas flow | 13 l/min |
| Gun handle | Yes |
| Neck type | Rotating |
| Neck dimensions: length | 114 mm |
| Neck dimensions: height | 65 mm |
| Neck dimensions: angle | 40 ° |
| Welding torch cable length | 5 m |
| Remote control | No |
| Standards | IEC 60974-7 |
GXe 305W 5m — Technical data
| Description | Value |
|---|---|
| Welding connection type | Euro |
| Type of cooling | Liquid |
| Minimum coolant flow rate | 1 l/min |
| Minimum cooling power at 1 l/min | 0.9 kW |
| Contact tip | M10x1 |
| Method of guidance | Manual |
| Load capacity 100% / Ar + 18% CO₂ | 300 A |
| Load capacity test, filler wire material | Fe |
| Load capacity test, filler wire diameter | 1.2 mm |
| Load capacity test, stick out length | 18 mm |
| Load capacity test, gas flow | 15 l/min |
| Gun handle | Yes |
| Neck type | Standard |
| Neck dimensions: length | 126 mm |
| Neck dimensions: height | 93 mm |
| Neck dimensions: angle | 48 ° |
| Welding torch cable length | 5 m |
| Remote control | Optional |
| Standards | IEC 60974-7 |
GXe 305W 3.5m — Technical data
| Description | Value |
|---|---|
| Welding connection type | Euro |
| Filler wire diameter | 0.8 ... 1.6 mm |
| Filler wire diameter, Fe | 0.8 ... 1.6 mm |
| Filler wire diameter, Fe-MC/FC | 0.9 ... 1.6 mm |
| Filler wire diameter, Ss | 0.8 ... 1.6 mm |
| Filler wire diameter, Ss-MC/FC | 0.9 ... 1.6 mm |
| Filler wire diameter, Al | 0.8 ... 1.6 mm |
| Type of cooling | Liquid |
| Minimum coolant flow rate | 1 l/min |
| Minimum cooling power at 1 l/min | 0.9 kW |
| Contact tip | M10x1 |
| Method of guidance | Manual |
| Load capacity 100% / Ar + 18% CO₂ | 300 A |
| Load capacity test, filler wire material | Fe |
| Load capacity test, filler wire diameter | 1.2 mm |
| Load capacity test, stick out length | 18 mm |
| Load capacity test, gas flow | 15 l/min |
| Gun handle | Yes |
| Neck type | Standard |
| Neck dimensions: length | 126 mm |
| Neck dimensions: height | 93 mm |
| Neck dimensions: angle | 48 ° |
| Welding torch cable length | 3.5 m |
| Remote control | Optional |
| LED light | No |
| Operating temperature | -20 ... 40 °C |
| Storage temperature | -40 ... 60 °C |
| Standards | IEC 60974-7 |
GXe 305G 5m — Technical data
| Description | Value |
|---|---|
| Welding connection type | Euro |
| Type of cooling | Air |
| Contact tip | M10x1 |
| Method of guidance | Manual |
| Load capacity 35% / Ar + 18% CO₂ | 300 A |
| Load capacity test, filler wire material | Fe |
| Load capacity test, filler wire diameter | 1.2 mm |
| Load capacity test, stick out length | 18 mm |
| Load capacity test, gas flow | 15 l/min |
| Gun handle | Yes |
| Neck type | Rotating |
| Neck dimensions: length | 135 mm |
| Neck dimensions: height | 96 mm |
| Neck dimensions: angle | 50 ° |
| Welding torch cable length | 5 m |
| Remote control | Optional |
| Standards | IEC 60974-7 |
GXe 305G 3.5m — Technical data
| Description | Value |
|---|---|
| Welding connection type | Euro |
| Type of cooling | Air |
| Contact tip | M10x1 |
| Method of guidance | Manual |
| Load capacity 35% / Ar + 18% CO₂ | 300 A |
| Load capacity test, filler wire material | Fe |
| Load capacity test, filler wire diameter | 1.2 mm |
| Load capacity test, stick out length | 18 mm |
| Load capacity test, gas flow | 15 l/min |
| Gun handle | Yes |
| Neck type | Rotating |
| Neck dimensions: length | 135 mm |
| Neck dimensions: height | 96 mm |
| Neck dimensions: angle | 50 ° |
| Welding torch cable length | 3.5 m |
| Remote control | Optional |
| Standards | IEC 60974-7 |
GXe 205G 5m — Technical data
| Description | Value |
|---|---|
| Welding connection type | Euro |
| Filler wire diameter | 0.8 ... 1.2 mm |
| Filler wire diameter, Fe | 0.8 ... 1.2 mm |
| Filler wire diameter, Fe-MC/FC | 0.9 ... 1.2 mm |
| Filler wire diameter, Ss | 0.8 ... 1.2 mm |
| Filler wire diameter, Ss-MC/FC | 0.9 ... 1.2 mm |
| Filler wire diameter, Al | 0.8 ... 1.2 mm |
| Type of cooling | Air |
| Contact tip | M10x1 |
| Method of guidance | Manual |
| Load capacity 35% / Ar + 18% CO₂ | 200 A |
| Load capacity test, filler wire material | Fe |
| Load capacity test, filler wire diameter | 1 mm |
| Load capacity test, stick out length | 15 mm |
| Load capacity test, gas flow | 13 l/min |
| Gun handle | Yes |
| Neck type | Rotating |
| Neck dimensions: length | 123 mm |
| Neck dimensions: height | 77 mm |
| Neck dimensions: angle | 45 ° |
| Welding torch cable length | 5 m |
| Remote control | Optional |
| LED light | No |
| Operating temperature | -20 ... 40 °C |
| Storage temperature | -40 ... 60 °C |
| Standards | IEC 60974-7 |
GXe 205G 3.5m — Technical data
| Description | Value |
|---|---|
| Welding connection type | Euro |
| Type of cooling | Air |
| Contact tip | M10x1 |
| Method of guidance | Manual |
| Load capacity 35% / Ar + 18% CO₂ | 200 A |
| Load capacity test, filler wire material | Fe |
| Load capacity test, filler wire diameter | 1 mm |
| Load capacity test, stick out length | 15 mm |
| Load capacity test, gas flow | 13 l/min |
| Gun handle | Yes |
| Neck type | Rotating |
| Neck dimensions: length | 123 mm |
| Neck dimensions: height | 77 mm |
| Neck dimensions: angle | 45 ° |
| Welding torch cable length | 3.5 m |
| Remote control | Optional |
| Standards | IEC 60974-7 |
Master Cooler 05M — Technical data
| Description | Value |
|---|---|
| Supply voltage | 380...460 V ±10 % |
| Supply voltage (MV low range) | 220...230 V ±10 % |
| Idle state power consumption [P1idle] | 5 W |
| EMC class | A |
| Tank volume | 2.3 l |
| Cooling power at 1 l/min | 0.5 kW |
| Maximum coolant pressure | 4 Bar |
| Recommended coolant | Kemppi MGP 4456 |
| Operating temperature | -20 ... 40 °C |
| Storage temperature | -40 ... 60 °C |
| Degree of protection (fully installed) | IP23S |
| External dimensions, length | 555 mm |
| External dimensions, width | 253 mm |
| External dimensions, height | 215 mm |
| Weight without accessories | 11.5 kg |
| Standards | IEC 60974-2, -10 |
