The Cloos GLC 503 Quinto with the CAPO feeder is a transformer MIG/MAG welder run from a 400 V supply and cooled with liquid. It gives 550 A at a 60% duty cycle and 500 A at 100%, and you work in the band from 40 A to 550 A at a voltage from 12 V to 47 V. A four roll drive feeds the wire, synergy picks the parameters.
What this machine is for
This is a power source for heavy production and long welds. 500 A at a 100% duty cycle means work without breaks, and the reserve up to 550 A you use on thick fillet welds. The lower limit of 40 A and the voltage from 12 V let you go down to thinner parts.
The synergic programs cover steel, stainless steel and aluminium, so you pick the material and the wire diameter, and the circuit sets the rest. Liquid cooling keeps the torch in check at high currents.
Features and equipment
- Transformer build: a simple construction resistant to dust and to voltage swings.
- Synergy: parameters from curves instead of hunting for the working point by hand.
- Programs for steel, stainless steel and aluminium.
- Four roll feeder: an even wire feed in continuous work.
- Liquid cooling: the fluid circuit takes heat off the torch.
Technical data
| Brand | Cloos |
|---|---|
| Model | GLC 503 Quinto with the CAPO feeder |
| Type of source | transformer, MIG/MAG |
| Current at 60% duty cycle | 550 A |
| Current at 100% duty cycle | 500 A |
| Working range | from 40 A to 550 A |
| Voltage range | from 12 V to 47 V |
| Supply voltage | 400 V |
| Cooling | liquid |
| Wire feeder | four roll |
| Control | synergic |
| Welding current given on the data sheet | up to 500 A |
What you get
- interconnection cable about 1 m
- earth cable 3 m
- MIG welding cable 3 m
What to watch out for
The interconnection cable is about 1 m, so the feeder stands right next to the source and for work further away count on a longer package. The welding cable is 3 m, which on a large part means moving the bay. The 400 V supply needs a power socket and a circuit matched to the draw at 550 A. Liquid cooling is a separate circuit, in which you check the fluid level. The data sheet gives current up to 500 A, and the source description 550 A at a 60% duty cycle, so confirm the value on the plate. The weight is not given.
This unit is sold
This machine has already gone to a customer. Similar units are listed below, and if you want the same model, leave your contact details in the form and we will let you know when the next one arrives.










