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Extrusion Asia Edition 1/2016
B
REYER extruders are designed to
operate with low energy use and as
much as comfortable for the operator.
All e-cabinets are equipped with
Siemens control unit. The comfortable
operations works via touch-display. The
vented extruders are running very eco-
nomically, since time-consuming and
energy-intensive pre-drying of the resin
is not necessary. On top the extruders
showing a high specific output. The wa-
ter-cooled AC motor is running extre-
mely quit.
Furthermore the extruder can be flexible
equipped with different kind of screen
changers as well as with a melt pump.
The special melt pump control allows a
quick and safe start-up. In this way it
saves raw material. An extrusion T-die
with rapid gap adjustment allows the
quick adjustment of the die lip during
production.
To adjust the die bolts of the flexlip
quickly and safe, an optional bank mea-
suring system permanently control the
melt bank. It informs the operator via
monitor which die bolt has to be adjus-
ted. In this way the profil can be set in a
very short time an safes raw material.
The calender is the quality hub of the
line. For gap adjustment in the past,
mechanism were built into the calen-
ders which allowed a more or less pre-
cise setting of sheet thickness. From a
simple adjusting screws and handwheel
adjustment right through to a moto-
rized adjustment method, which adjus-
ted the gap between two rolls, all kinds
of mechanism were available. By these
methods the sheet thickness was adjus-
ted in the calender. The BREYER gap ad-
justment fast&easy does not involve
any mechanical adjusting parts. A so-
phisticated system permits precise posi-
tioning, accurate to within five thou-
sandths of a millimeter! Amazingly, this
precision is achieved during production
and at full load! The system allows gap
settings to be set in the range of 0 to
100 mm with exactly the same preci-
sion. However, with film and sheet ex-
trusion this is generally between 0.1
and 20 mm.
The set-points are entered via a color
touch screen. The gap immediately
changes then at a touch of a button.
This technology of gap adjustment re-
presents real progress in extrusion tech-
nology, as it gives the user much greater
freedom and sets new standards in
terms of the speed and precision of pro-
duct thickness settings.
Free lateral accessibility and view into
the roll gap is given by the arrangement
of the rolls. Thus also e.g. dies with de-
ckeling systems could be applied with-
out colliding with the machine frame.
Decoration films could easily be guided
into the roll gap by means of a prepared
unwinding device at the calender.
Changing embossing design:
For the fast change of the middle roll
this roll is located in a drawer which
ejects by push of a button within few
seconds and could be exchanged by a
roll with another embossing design.
This function is very comfortable for the
operator because with this the roll is
freely accessible and could be lifted out
by means of a crane.
Split bearings and fast couplings at the
drive and cooling side allow a rapid re-
lease of the precise connections. In ope-
rating mode the roll is hydraulically
locked and immediately ready for appli-
cation. With this system the change of
rolls could be finished within a few mi-
nutes.
Yet another feature which improves the
efficiency of the complete extrusion
line. BREYER will present this system at
the exhibitions 2016 in a 3D video ani-
mation.
Chinaplas 2016: Stand E1F15
Breyer GmbH Maschinenfabrik
Bohlinger Str. 27, 78224 Singen, Germany
www.breyer-extr.com