Inflatable dams allow
weld purging in tight bends
For closure welds, tight bends, T-piece
joints, and dome end connections on
which a conventional tandem weld purging system cannot be used, Huntingdon
Fusion Techniques HFT® offers a line of
single-ended inflatable weld purge dams.
Manufactured for pipe diameters from 6
to 96 in., these lightweight systems are
heat-resistant up to 194 degrees F.
Each dam is fitted with a dual infla-
tion and purge hose, an additional purge
gas hose, and an exhaust that can be
connected to one of the company’s Weld
Purge Monitor®s. Once the dam is in-
flated using the purge gas and seals all
around the internal circumference of the
pipe, the excess inert purge gas spills out
and purges the space around the weld
joint. The oxygen then is released into
the pipe length through a series of vent-
ing exhausts on the dam.
Huntingdon Fusion Techniques HFT
44-1554-836-836
www.huntingdonfusion.com
All-in-one cutting unit
works without electricity
Hypertherm offers the Freedom
38 PPA™, an all-in-
one unit combin-
ing plasma, power,
and air for cutting
in areas without ac-
cess to electricity. It combines a Power-
max125® plasma system with a 38-kW
generator and air compressor.
Cut capacity for the included plasma
system is 11⁄ 2 in. at a speed of 18 IPM
and 1¾ in. when cutting at a speed of
10 IPM. In addition, the system can
sever 2¼-in.-thick material if needed.
The plasma system also can be used
for gouging and accepts a number of
different torch and consumable options
for a variety of hand-held and automated
applications.
Hypertherm 800-643-0030
www.hypertherm.com
Axial tube forming machine
offers fast tool changing
transfluid® Mas-
chinenbau GmbH
offers the t form
REB system for axial
tube forming. The
machine configura-
tion is determined
by three factors: the tube size, the mate-
rial, and the forming geometry. For ex-
ample, sharp-angled contours require
significantly more upsetting output than
smooth ones.
The forming machine can provide fast
tool changing, extreme degrees of form-
ing, and complex geometries, states the
manufacturer. The tool sequence is po-
sitioned vertically or horizontally via a
servomotor. Up to six forming stages and
one intermediate clamping unit handle
almost all forming requirements, says the
company. Integrated rolling stations are
used for specific tube forming processes.
The system is operated via a touch-
screen with an integrated database, with
which the user manages specific ma-
chining sequences and process and ma-
chine parameters. Hydraulic, numeric,
and electrical drives are optional. For
very short cycle times, the forming pro-
cedure can be carried out step-by-step in
transfer systems.
transfluid Maschinenbau GmbH
49-29-72-97-15-0
www.tube-processing-machines.com
