FastMig KM 400/MF 33

FastMig KM 400 / MF 33

  • Kemppi FastMig Basic KM 400 Power Source
  • MF 33 Wire Feeder
  • MIG/MAG Welding Processes
  • Wire Feed Unit

Technical Data

Weight of KM 400 Power Source: 35kg

Dimensions of KM 400 Power Source (mm) H x W x L: 430 x 230 x 590

Welding Range: 20A/12V-400A/36V MIG, MMA 10A/20V-400A/36V

Weight of MF 33 Wire Feeder: 13.6 kg

Dimensions of MF 33 Wire Feeder (mm) H x W x L: 510 x 200 x 310

Mains Voltage: 3 - 50/60 Hz 400 V - 15% + 20%

Welding Range: 10 V, 37 V

Open Circuit Voltage: 66 V

The Kemppi FastMig™ Basic is designed for the basic MIG/MAG welding needs of heavy and medium heavy industry. FastMig™ Basic’s effective and efficient 400 amp power source is light, modern and compactly built. They are 70% lighter and consume 10% less energy than switch-operated power sources with a comparable output. The MF 33 wire feed units are designed for demanding welding conditions. The double skinned plastic casing is durable, elegant and recyclable and is fitted with a sturdy 4 x 4 feed roll device to guarantee steady, uninterrupted wire feeding.

• Increased productivity and quality - stepless voltage and wire feed control

• Easy-to-handle - 70% lighter than equivalent switch controlled devices


• Medium and heavy metal fabrication workshops

• Steel structure workshops

• Ship building and off shore