TPT November 2015

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Technology News
38 November 2015
The new 25CNC-EMR R/L
tube bending machine
GERMAN manufacturer Lang Tube
Tec is offering a new fully electric tube
bending machine with automatic change
of bending direction with the new CNC-
controlled 25CNC-EMR R/L.
Thanks to the swivelling bending
head and shifting of the clamping unit
and pressure die support this innovative
machine achieves short cycle times
and can make time savings of up to 20
per cent compared with conventional
processing methods in which the
bending head is fully rotated.
“Thanks to the innovative machine
design with its highly dynamic drives
and the use of a completely new control
system with Bend Motion Control, we
have successfully optimised the bending
cycles. As a result, the 25CNC-EMR R/L
is not only one of the most flexible tube
bending machines, but
also one of the fastest
in its class,” said Sabine
Neff, sales director at
Lang Tube Tec.
Sectors such as the
automotive or aerospace
industries, which demand
high output cycle times
and maximum pro-
cessing precision, stand
to benefit from the new
innovation from Lang
Tube Tec.
The same applies to companies in the
heating and air-conditioning sector.
The 25CNC-EMR R/L is designed as
a multi-stack and multi-radius machine
that allows various radii to be bent in
one setting, either in a rotary draw-
bending or free-form bending process.
With axial precision of ±0.05mm
(transportation, clamping, pressure die
support) and 0.05° (bending, rotation,
swivelling), even the most complex bent
components can be realised.
The machine concept is based on a
high machine rigidity, which is designed
for maximum tube dimensions of 30
x 1.5mm, as well as on maximum
operating comfort. This is achieved with
an implemented loading and unloading
function. The swivel-mounted collet
rotation unit can remove the tube to
be bent from a tube magazine and the
swivelling bending head can place the
finished component on the ground or on
a conveyor belt.
Since the 25CNC-EMR R/L is
completely encased and even comes
with an integrated switch cabinet,
the new tube bending machine
occupies very little space in production
environments. Its design as a fully
electric machine without hydraulic
components ensures a lower error rate
and minimum maintenance expenditure,
while the digital drive mechanism
increases the effectiveness of remote
maintenance and boosts productivity.
Furthermore, the new tube bending
machine from Lang Tube Tec features
an energy recovery system. When
braking the processing axes, the freed-
up energy is fed back into the system.
The new control system is partly
responsible for turbo-processing, among
other things, and for the positioning of
tube clamping and pressure die support
with the help of an automatic set-up
cycle. The automatically generated,
optimal values are taken over directly in
the bending program.
Whenever the operator activates
the bending program, values are
automatically verified and, if necessary,
fully automatically corrected before
advancing to the production process.
This means that retooling times are
reduced to an absolute minimum.
Maximum safety is guaranteed
because as soon as a saved program
containing all bending and setting
parameters is activated, a simulation
cycle is performed first at 10 per cent
reduced speed. This test run eliminates
accidental collisions that may be caused
by the mounting of an incorrect tool.
In addition to the increased production
capacity through the coordination and
simultaneous movement of the axes,
the new 25CNC-EMR R/L from Lang
Tube Tec also offers further optimisation.
The software module saves time by
anticipating movements and moving
the machine into position for the next
bending step. Pre-calculated positions
can be assumed using dynamic limit
switches, which also helps to prevent
collisions.
The new control system release also
contains a wide range of maintenance
and diagnosis functions. These can
help to avoid downtimes using various
help functions. Thanks to its intuitive
control panel, the CNC-E series from
Lang Tube Tec can even be controlled
by operators without prior experience of
CNC controlled machines.
Lang Tube Tec GmbH – Germany
Fax: +49 2302 9615 230
Email:
Website:
The new CNC-controlled 25CNC-EMR R/L