Spot welding devices

Maximum welding current of up to 9000 Amps:

With power like this, the new PROTON I is absolutely unique on the market. The first-ever inverter machine from FAN guarantees perfect spot-welds in every case. Exactly as defined in the criteria laid down by the vehicle manufacturers.

Even in repair jobs done on the latest generation of bodywork. On high and higher-strength steels as well as on high-strength sheets. It's obvious, really: High welding current, the very highest power and, of course, higher strength as well.

Even for different combinations of sheets or in spot weldbonding.

COOLING of the individual components is of vital importance for productivity and the quality of the welding spot. The fully integrated cooling system, developed by FAN, guarantees the precise cooling of THE WHOLE MACHINE RIGHT TO THE ELECTRODE CAPS. This ensures the maximum quality of the welding spot and a long lifespan for the electrodes.

The clever water re-cooling system FK 4.000 R of the PROTON I manages constant temperatures and includes the welding cable, connections, rectifier, high performance transformer, tongs, impact point pack and earthing hose pack.

Consistently high welding current power – guaranteed by the high performance inverter (as used in car assembly). No drop in performance! Buffer circuit compensation levels out drops in mains current immediately.

Continuous acoustic and optical monitoring of the welding spot – sensitive to varnish residue, low electrode pressure or electrode contamination.

Exact reproduction of any welding spot possible due to the built-in digital processor. The memory key recalls all preset parametres. Time and energy frequencies can be programmed according to set factory requirements. These frequencies can be preset exactly for any body and sheet strength.