The Migatronic BDH 550 is an inverter MIG/MAG power source for heavy production, supplied from a 400 V mains and liquid cooled. It gives 550 A at a 40% duty cycle and 400 A at 100%, so you run continuous work up to 400 A. The machine has pulse and handles two wire feeders.
What this machine is for
This is a power source for long welds on thick sections: steel structures, tanks and frames. A current of 400 A at a 100% cycle means work without breaks, and the reserve up to 550 A you take for thick fillet welds. The programs cover steel, aluminium and CrNi stainless steel.
Two feeders are the answer for a workshop that welds with different wires in turn: instead of changing over one, you switch to the other with its spool already fitted. Pulse orders the metal transfer and cuts spatter.
Features and equipment
- Inverter build: a stable arc and less weight than in a transformer source.
- Pulse: the droplet detaches without a short circuit, so there is less spatter.
- Two wire feeders: two grades of filler ready for work.
- Programs for steel, aluminium and CrNi stainless steel.
- Liquid cooling: the fluid circuit keeps the torch cool at high currents.
Technical data
| Brand | Migatronic |
|---|---|
| Type | inverter MIG/MAG power source with pulse |
| Current at a 40% duty cycle | 550 A |
| Current at a 100% duty cycle | 400 A |
| Supply voltage | 400 V |
| Cooling | liquid |
| Wire feeders | two |
| Programs | steel, aluminium, CrNi stainless steel |
| MIG torch in the set | 4 m rated 500 A, liquid cooled, new |
What you get
- new MIG torch 4 m rated 500 A, liquid cooled
- earth lead about 3 m
- interconnection cable about 2 m
- mains cable about 4 m
What to watch out for
The torch from the set is made for 500 A and the source gives up to 550 A, so at the highest settings pick a torch to match that current. The interconnection cable is about 2 m long, so for work further from the source count on a longer package. A 400 V supply needs a power socket, and liquid cooling needs its own circuit, in which you check the fluid level and the flow through the hoses. The weight is not given, so arrange transport before collection.
How we sell used machines
This unit was checked in our service workshop in Krotoszyn with measurements to PN-EN 60974-4 and a load test. The price includes the first year of the basic service package: an inspection with cleaning of the machine and a validation measurement. Further years can be added. We ship across the European Union, collection in person by appointment.













