Fronius MTG 250d - MTG 400 D K4, MTW 500 D K4 - General; General; Standard Values for Extraction Units; Air Chamber

MTG 400d K4, MTW 500d K4 - General
General The MTG 400d K4 and MTW 500d K4
fume extraction torches capture the
harmful welding fumes directly at
source.
The welding fumes are extracted, befo-
re they get into the welder's breathing
zone.
Legal specified values for the maxi-
mum workplace concentration (MAK)
are adhered to or undercut.
Standard values
for extraction
units
The extraction unit for the fume extraction torch must comply with the following
specifications:
Suction power
Approx. 100 m
3
/h
Negative pressure values Between 0.05 and 0.2 bar
(between 5000 and 20000 Pa)
Air chamber The quantity of extracted welding fumes can be continuously controlled between
10 and 100% using the air chamber during the welding process.
10 %
100 %
1
1
100 %
2
10 %
2
IMPORTANT! Regulation of the extracted welding fume quantity is required if
the shielding gas is extracted with the welding fumes (e.g. when welding in a cor-
ner position).
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