TPT March 2015

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Technology News
March 2015 33
Dynamic concepts
for collision-free
pipe bending
IN pipe bending, precision is critical.
In order to ensure good results, the
use of the right bending technology
is becoming increasingly important.
This is particularly true for challenging
requirements such as installation space
and system positioning, as they can
restrict the conditions needed when
forming pipes.
In many cases, neither a right- nor a
left-bending machine can produce the
required geometry of the pipe bends
without colliding with the machine frame.
A solution with the maximum number
of bending options is required. For
this purpose, transfluid Maschinenbau
has created technologies in its ‘t bend’
machine category, offering two effective
right/left bending con-
cepts for different
pipe diameters. In the
development of these
bending machines,
the focus was on the
optimum utilisation of
the systems.
“For pipes with a diameter of less than
30mm, we offer a ‘t bend’ machine with
two individually adjustable heads,” said
Stefanie Flaeper, managing director
at transfluid. The adjustable heads
allow both right- and left-hand bending
operations; the right bending head is
still-standing, and the left bending head
is suspended. “This design principle is
very effective for small pipe diameters
because the operation time is extremely
short,” said Ms Flaeper. “Changing from
one bending direction to another can
be completed in 2.5 seconds.” Each
bending head can be equipped with up
to three tool levels.
In the second bending concept,
transfluid has optimised the machine’s
effectiveness onto one rotating head.
This system is also dynamic for larger
pipe diameters from 30 to 90mm. Larger
pipe dimensions can be efficiently bent
right or left. The concept is the same
for pipe diameters of less than 30mm;
all shafts are servo-electrically driven
and there are two tool levels on each
bending head as standard. To free-
form large radii, both machine versions
can be equipped with a corresponding
system.
transfluid Maschinenbau GmbH –
Germany
Fax: +49 29 7297 1511
Email:
Website:
The right/left pipe bending
machines such as the ‘t bend’
DB 630-CNC from transfluid offer
bending options up to 30mm
The ‘t bend’ DB 642-CNC-RL with rotating head is a
dynamic solution for pipe diameters from 30 to 90mm
Orbital cutting technology
ROLF Schlicht’s orbital cutting
technology is a new cutting system
for small pipes used for the cutting
of semi-rigid, rigid and brittle plastic
pipes.
The system improves on conven-
tional cutting systems and techniques
like punch cutters, guillotines, saws
and also rotating cutters. This new
technique is very precise and provides
a clean, burr-free cut face.
High flexibility is provided by setting
and controlling process parameters
as well as high cutting and reaction
speeds at rotation speeds up to
3,000rpm and 150 cuts per minute.
It is used for OC-15 (up to 15mm Ø)
for fuel pipes, small pipes requiring a
clean cut face, medical technique, etc,
and OC-40 (up to 40mm Ø) and OC-65
(up to 65mm Ø), and both machines
are used for pipes which must not
have swarf and where a clean cut area
is important.
RS Multicut rotation cutter MC-50 is
for dry and wet applications for precise
cutting of soft and semi-rigid extrudates
up to about 50mm diameter at highest
line speed and cutting cycles up to
about 400/min in stop/start operation
and up to 4,000/min with continuously
rotating knife. Diverse feeding and
discharging systems are available,
being built according to customers’
demands.
Rolf Schlicht GmbH – Germany
Email:
Website: