TPT January 2016

90 / 106

Welding
88 January 2016
Protem pre-fab machines
THE BB high-speed bevelling benches
from Protem are powerful and reliable
machines used for achieving high
quality weld end preparation in just a
few seconds. This equipment is used
for projects that require a near-perfect
weld end preparation.
The machines can be used in virtually
all industries where the weld quality
is critical and projects must stay on
schedule.
These machines are easy to install
and are quickly adjustable to any size of
tube or pipe within the machine’s range.
They will machine the pipe ends in one
smooth pass in a matter of seconds.
This makes them suitable for use on
heat exchangers, pipeline construction
and maintenance, onshore and
offshore construction and maintenance,
prefabrication workshops, shipbuilding
and many other applications.
The BB machines are used for
bevelling, facing and counterboring
operations. These operations
can be processed individually or
simultaneously. They will perform
repeatable high quality bevels with an I,
V, J or X shape, or compounded bevels.
Suited for either manual or automated
welding processes, these machines
can achieve perfect weld preparations
on virtually all materials: carbon steel,
stainless steel, and exotic alloys such
as Incoloy, Hastelloy, duplex and super
duplex.
The CTA series machines are able to
machine pipes within a range of 1" to
36". These are ideal for production and
prefabrication requirements. The CTA
machines save space in workshops
and can be integrated in production
lines. Tubes and pipes up to 36" can be
cut and bevelled within a few seconds.
Machines capable of machining larger
diameters are also available upon
request. Machining is performed in
a cold cutting process that does not
produce a heat affected zone. The
result is extremely high quality weld
end preparations.
To machine the pipe ends with the
CTA series machine the tube to be cut
and bevelled is held stationary. The
CTA’s OD clamping devices keep the
pipe immobilised during machining
operations. The tool bits, mounted on
the rotating plate, are put into rotation
around the tube to perform the cut. The
forward and reverse feed of the tool
bits are handled mechanically during
the rotation of the tool holder plate.
While cutting, the machine performs
bevelling on both ends. The tool holder
carriages, mounted on the rotating
plate, are equipped with housings
which can accept several types of tool
blocks.
The CTA machines have earned an
excellent reputation around the world in
a variety of industries – nuclear, power
generation, oil and gas, tube processing,
prefabrication workshops, pipelines and
the chemical industry.
Protem has designed a wide range
of portable equipment for welding
preparations on tubes, pipes and
pipelines. The range of equipment
includes ID mount bevellers; OD mount
bevellers; orbital tube cutting and
pipe cutting and bevelling equipment;
high-speed cutting, facing, bevelling,
and counterboring equipment. These
machines can be pneumatically,
hydraulically or electrically driven. The
TNO machines cleanly and efficiently
cut and bevel tubes and pipes with
diameters ranging from 4.5" ID to 72"
OD (114.3mm ID to 1,829mm OD).
These orbital cutting and bevelling
machines are specially designed to
fit piping or tubing prefab applications
on the job site or at the fabrication
workshop. Protem claims that the
machines cut and bevel heavy wall
pipes faster than any other machine.
Protem SAS – France
Website:
The BB high speed bevelling bench