On torch extraction
May 1st 2008 The dangers of fumes from welding have long been known. Fumes can damage
the nervous system and respiratory tract, as well as having other adverse effects
Traditional capture hoods and nozzles
can work well, but require an element
of operator involvement to ensure
correct positioning of the capture device.
For MIG Welding it has been possible to
integrate the capture nozzle into the
welding torch itself, and advances in recent
years have seen these torches improve in
efficiency, weight and manoeuvrability.
Having the extraction device built into
the torch removes responsibility from the
welder to position hoods or nozzles
correctly, as the point of extraction is
always in proximity to the weld.
Until recently the efficiency of on torch
fume extraction had not been tested, and
there were certain questions of doubt over
the overall effectiveness of such systems.
Nederman, together with their partner
Abicor Binzel commissioned tests at the
Health & Safety Laboratory that would
answer such questions and for the first
time provide quantative results of capture
efficiency via the welding torch. A welding
torch was connected to a Nederman High
Vacuum System, and the tests took into
account a range of welding positions and
parameters.
The report has concluded that the
extraction of welding fumes via the torch
can offer very high capture efficiencies and
with the correct welding parameters in
place, there was no disturbance of
shielding gas and therefore no detriment to
the integrity of the weld. The advantage of
a Nederman high vacuum system as the
power source to on torch extraction is that
the same system can extract from
workshop tools, such as sanders and
grinders, and can also be employed for
floor and general cleaning work.
Nederman will be pleased to supply you
with a free copy of this report. To obtain
your copy please telephone our customer
support on 01772 334721. We will also be
pleased to offer an on site demonstration
of on torch fume
extraction at your
premises, or alternatively
arrange for you to see and
try out this process at our
demonstration area at Preston
Dust & fume extraction – summer special offers
To inhale fresh air and have a clean
workplace is what we all want. Airborne
dust and fumes come in many
forms, they can be poisonous, or
an irritant, some forms of dust can
even be explosive. In whatever
form these pollutants are
encountered, they present a
problem that has to be dealt with.
Nederman P160 portable units
are light weight extraction systems
ideal for cleaning, on tool for
processes such as grinding,
sanding, buffing, polishing and
also general factory workshop
clean up, and on torch extraction
from welding processes.
Working with products such as
composites, plastics, fibreglass wood and
various metals, produces dusts and fumes
which require effective capture and
extraction from your working area.
The Nederman Summer offer (valid until
31/8/2008) will provide you with a
complete solution to either on tool or
on torch extraction. Each package
includes the unit - together with
various accessories. You will receive
either a welding torch, or a sander,
dependent upon
which package is purchased. The
On Torch package is £975.00 plus
VAT, and the On Tool package is just
£995.00 plus VAT.
We can also provide a free on site
demonstration at your
premises. For further
information, or to
arrange your free
demonstration contact
our Sales Support on
01772 334721. More articles from Nederman Limited: | 
