Spotlight
extrusion machines
Spotlight Spotlight Spotlight
Modular Polymer
Melt Control
System
OPT.TROL from Dynisco gives users
the ability to precisely control
pressure and temperature on most
extrusion lines. It offers adaptive,
autotuned temperature, pressure and
speed control as well as differential
control and process-variable trending
WPC Direct
from a user-friendly color touch-
Extrusion Line
screen operator interface. The
system can be used on new
Systems for processing plasticisable
extruders or retrofitted to provide advanced control features on existing equipment.
composites of natural fibres and
“Dynisco has long been known for its sensing and single-loop technology,” comments
thermoplastic materials continue to be
Mike Davis, Product Manager. “Now, with the introduction of OPT.TROL we can also give
Updated Servo
on the rise. An innovative Reifenhäuser
customers total polymer melt control in a simple, affordable, expandable package that
direct extrusion line was successfully
works as a system with Dynisco sensors and instruments. OPT.TROL allows users to Cutter
taken into operation in Riga, Latvia,
achieve a complete solution and optimal control from their entire extrusion line.” A
last August. The low intrinsic
system can be configured with as few as eight zones and can be expanded in GILLARD has launched an updated
compatibility between wood and
convenient increments of eight zones to a maximum of 40 zones of control. This building version of its high performance Servo-
plastics places exacting demands on
block approach saves time and money. The temperature card was developed with Torq ULTRA rotary cutter specifically
wood-plastic composite extrusion
single-screw, twin-screw, co-extrusion or blow-film extrusion applications in mind. Fully designed for producing bubble, taper
lines. This caused the company to
automatic adaptive tuning (as well as conventional tuning) is provided. To boost or bump tube for medical applications.
develop a line concept in cooperation
productivity and extend equipment life, the OPT.TROL system includes an automated This machine uses the latest AC
with the users of this technology. The
heat start-up, which requires no operator intervention. brushless servo motors with a fully
outcome was a production line of high
digital 3-AXIS control system. GILLARD
productivity and economic efficiency. It
Dynisco Europe GmbH
claims that this system can hold length
features a specific screw geometry
Tel: +49 7131 297 142
accuracies to within ±0.1 mm even at
and an extremely high wear protection
Email:
vkupitz@dynisco.com
very high linespeeds. A key feature,
enabling a service life of about
Web:
www.dynisco.com
according to Gillard, is that both
30,000 operating hours. Screws and
caterpillar infeeder belts have their own
barrels can be ideally adapted to the
AC servo drive. These are
different wood and polymer types and
Spotlight
synchronised to within one encoder
to the recipes and requirements of the
pulse per motor revolution. This
individual WPC products.
represents a speed holding accuracy
Reifenhäuser’s Riga-based customer,
of better than 0.0005%, Gillard says. A
N.V. VEGA, is able to produce at a line
third servo motor then powers the
speed even 20% higher than expected
rotary cutting blade. All the motors are
after conducting the preliminary tests.
monitored by a single motion controller
The WPC line supplied to the Baltic
running on a fully digital
country is based on a twin-screw
communication network. This control
Bitruder 92 extruder equipped with
system allows the precise adjustment
counter-rotating intermeshing screws
of the linespeed acceleration and
to offer optimum conditions for
Large Diameter deceleration required when creating
processing wood fibres and
Pipe Production
bubbles along the tube length. Output
thermoplastic materials such as PE
timers are available for controlling air
and PP. With its new WPC line, the
blowing and clamping functions. Cut
Latvian packaging producer is
position and minimum/maximum tube
For 10 years Periplast has concentrated to 2000 mm in the one line. Today,
following a diversification strategy
outer diameter are also all controllable.
its efforts on satisfying the ever growing Periplast continues its thrust into the large
focusing on the production of eco-
Parameters are set via a colour touch-
friendly products that can be fully
market of large diameter pipe production. diameter pipe equipment market and is
screen control panel. Another
recycled. Conventional firewood
By 1998 it has provided Vacuum &
working on the production of two further
important feature Gillard added is that
pellets, instead of combusting them
Cooling Tanks for 800 mm, 1200 mm &
lines — one for 1600 mm with an output
the caterpillar has been moved much
with a negative effect on CO
1600 mm pipelines. Having acquired the
of 1800 kg/hr and one for 2000 mm
closer to the knife blade. This is of
2
emissions, are added to the
Intellectual Property of Speedex in 2001
diameter. However, it is important to stress
particular importance when handling
thermoplastic material. Subsequently,
(and with it 40 years experience in large
that Periplast’s Concept of large diameter
ultra-small diameter tubing. Gillard has
the mix is processed into hollow-profile
diameter “Take-Offs” & Planetary Cutters),
Pipe Production goes beyond merely
tested the machine on tube diameters
window sills that boast price and
Periplast produced its own 1600 mm
supplying the machinery and tooling by
down to 0.3 mm OD. The caterpillar
weight advantages in addition to
Downstream Line in 2004. This important
giving continuous support and assistance
belts can also operate in either
outstanding heat insulation properties.
acquisition together with its own
to their customers with the design of the
conventional parallel mode or be tilted
experience of many decades of Extruders
plant layout itself and with the processing
into a nip position.
Reifenhäuser
& Tooling put Periplast in a very strong
itself.
position to further develop the Complete
Gillard Cutting
Extrusion GmbH &
Package for large diameter equipment.
Marshall & Co.
Technology
Co. KG Indeed, only three years later in 2007,
(Leeds) Ltd Tel: +44 1684 290 982
Tel: +49 2241 481 575
Periplast produced its first Complete Line Tel: +44 113 217 4487
Email:
cgillard@gillard.co.uk
Email:
info@reifenhauser.com
for the production of 2000 mm pipes with Email:
marshall.co@virgin.net
Web:
www.gillard.co.uk
Web:
www.reifenhauser.com
a capability to extrude pipes from 800 mm Web:
www.marshallcoleeds.com
14 EPPM
www.eppm.com
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