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Comparison between welding processes:
OPEN ARC
No gas supply required
No stop welding
Higher deposition efficiency
Fast deposition
Lower labour costs
Easily portable
3 – DESCRIPTION
This continuous electrode flux cored wire feeder, without shielding gas (OPEN ARC), is powered directly from no-load voltage of
AC or DC welding power sources. It is fitted with a voltage sensor which controls the welding current and the variation of the
wire speed, keeping constant the arc
Replaces MMA-coated electrode, MIG/MAG or SAW-submerged arc welding processes with great reduction of costs
and fastest weld deposition rates.
Very easy of use, ideal for construction, repair and maintenance, shipyards or mines to quickly reconstruct wear protection over
very large areas. Fully adapted of all manual metal arc generators, either in direct current DC or alternated current AC, with
capacity of at least 300A, under a duty cycle of 60%.
All functional components have a very simplified access.
With a very simple use, the welding parameters of this equipment can be quickly regulated. Its compact and robust construction
allows its reliability under tough conditions, either in workshops or external shipyards.
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Fig.4
Complete set :
1 Wire feeder
1 Earth cable 70 mm2 - 3 mts with 400A earth clamp
1 Pair of suplementar rolls 1,6/2,4 mm
MMA
No gas supply required
10% less metal per cm
Very lower deposition efficiency
Intermittent welding - 14% losses
Higher labour costs
Difficult portability
length.
The internal assembly of a solenoid gas valve also allows solid wire welding.
1 – Ready to use indicator
2 – Wire speed adjustment knob
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3 – General switch
4 – Torch adaptor
5 – Earth cable plug
6 – Connection cables holder
7 – Gas/no gas selector switch
Attention: To avoid damage to solenoid valve, never
select gas position without gas feed from bottle.
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8 – 2T/4T mode selector switch
9 – Wire inch key button
10 – Motor protection (12A with reset)
11 – General fuse 5A
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12 – Wire feed motor
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13 – 15/25 Kg wire coil holder
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14 – Wire inlet guide
15 – Positive cable connection (from power generator)
16 – Negative cable connection (from power generator)
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17 – Gas inlet
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18 – Spare knurled rolls (dia. 1.6/2.8mm wire diameter)
19 – Straightener (optional, not included on standard version,
recommended for 2.8mm hard fluxed wires).
MIG
Gas supply required
No stop welding
Medium deposition efficiency
Medium deposition
Medium labour costs
Difficult portability
Documentation :
1 User's guide
1 Warranty certificate
1 Conformity certificate
OPEN ARC 500A
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