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Kemppi A7 TIG Orbital System 300 Manual

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A7 TIG Orbital System 300© Kemppi Oy 2016 1615
OPERATING MANUAL
1.3 Weld head
The A7 TIG Orbital System 300 includes an open-type weld
head to be fastened on the tube with a guide ring. Insertion
kits can be used in guide rings to adapt them to smaller
pipe diameters. The weld head also accommodates a ller
wire spool.
1.3.1 General specifications
Travel
Torch speed in the forward direction is adjustable from
0 to 250 mm/min.
Wire
The 300 series of weld heads has been designed to carry
a 1 kg spool (100 mm) of 0.8 mm diameter welding wire
with the feed rate adjustable from 0 to 2.54 m/min. Special
spool is available to low prole applications.
Please consult Kemppi when using other wire
diameters.
Oscillation
Oscillation stroke is adjustable from 0 to 16 mm at torch
speeds up to 1520 mm per minute.
Arc gap control
Arc gap control stroke measures 13 mm. The AGC motion
is produced by a rack-and-pinion mechanism driven by a
DC motor.
Dimensional considerations
Standard pipe sizes range from 1 to 14" (25–356 mm). You
can accommodate smaller diameters using the Guide Ring
Insert Kit. Guide rings for standard tubing sizes are also
available. A linear modication is available on request.
Radial clearance for standard pipe sizes is 63.5 mm (51 mm
with the Low Prole Package). For pipe sizes smaller than
48.3 mm, minimum radial clearance from the pipe centre
is 88.9 mm (75 mm with the Low Prole Package).
Axial clearance from the weld line to the rear of the
machine is 21 6mm and from the weld line forward 10 mm.
Torch and umbilical
The water-cooled torch is rated at 200 amps. The torch body
has been designed to accept standard consumables, both
gas lens and spud type. All services as well as the electrical
control of the weld head are supplied in the umbilical.
The standard length is 7.6 m. However, umbilicals of 15
m are available on request. Extension cables are available
for systems requiring greater distances between the
controller and the weld head.
… 6 …


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