Extrusion 3-2016

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27 Extrusion 3/2016
important group of companies
in the construction and trading
business, even if has started its
pipe production recently, has ra-
pidly gained reputation because
of its choices quality oriented.
Technical details of the line
The lines, characterized by reli-
able technological solutions –
such as the extruders Vega with
L/D ratio of 37 and Venus heads
with internal pipe cooling (PAC) – will
produce HDPE pipes with diameters up
to 400 mm.
The VEGA series are the result of years of
experience manufacturing extruders and
of a constant effort to develop each part
of them. A constantly updated screw de-
sign, matched with the water cooled
straight feed bush, ensure excellent pro-
duction values with optimal plasticizing,
even at high output rate. The specific
output has been further increased and it
maintains constant across the whole
Tecnomatic S.r.l.
Via Emilia, 4, 24052 Azzano S. Paolo,
(Bergamo) Italy
screw speed range or
even at high back-
pressures values.
The machines are
equipped with syn-
chronous AC motors
specifically designed
to be used in applica-
tions at high dynamic
performances with variable speeds. The
selected motors are mechanical sturdy to
withstand high overloads while a highly
effective insulation avoid a gradual dete-
rioration caused by operation at high fre-
quencies. Italian gearboxes characterised
by single block cast iron frame, for large
oil capacity cooled by an independent
unit, and high performance bearing unit
(up to 500 bars) fit out the transmission
system of the VEGA series.
To process the high throughput with low
backpressure and stress load to the ma-
A communal water
tap in a remote
village
terial VENUS die-heads are the proper
tools. Based on a spiral distributor con-
cept with a compact design thanks to
their innovative geometries and the in-
ternal air cooling (PAC system) ensure an
optimal wall thickness distribution, ovali-
ty and low sagging.
The lines are synchronized using gravime-
trics on each extruder, to guarantee a
continuous raw material feed and to re-
cord variations in mass throughput, there-
by ensuring a perfect control of the
weight per meter and wall thickness dis-
tribution. The downstream equipment in-
cludes Tecnomatic vacuum & cooling
tanks, haul-offs with caterpillar tracks
controlled by an independent vector AC
motor and planetary saws with knife cutt-
ing and universal clamping device, for a
very accurate swarf-less pipe delivery.
Engineering Value
KraussMaffei Berstorff:
Ihr Partner in der Profilextrusion
Ihre Vorteile:
– Leistungsstarke Profilextruder
– Rentable und maßgeschneiderte
Systemlösungen
– Platzsparende Coextrusions-
Konzepte