Page 41 - Plastics News May 2021

produCt news

BUSS optimizes COMPEO series Leak-Master gets user-friendly

for compounding plasticized PVC upgrade

USS’s has been working on its modular COMPEO itt-Gasetechnik has enhanced its Leak-Master
Bplasticized PVC compounding systemsfor optimum WEasy Plus leak tester with hardware and software
results and are now also available in a cascade upgrades. Said to offer all the advantages of water-bath
configuration. The discharge and pelletizing unit is testing with the added “rich possibilities” of digital
mechanically decoupled from the compounder and is control, the Leak-Master Easy Plus is now billed as being
fed in free fall via a connecting tube. This arrangement more convenient to use. According to Witt-Gasetechnik,
a new high-resolution touch display and new user
interface offer clearer and more intuitive user-friendly
menu navigation, improving the inspection process
and the documentation of the measurement results
for the quality team member. The test method in a
water bath is particularly uncomplicated and cost-
effective and has the advantage that a weak point in
the packaging is clearly visible, as air bubbles rise to
the water surface in the event of a leak. In many cases,
this error localization makes it possible to optimize the
packaging or manufacturing process and thus reduce
avoids back-pressure build-up at the transition between the error rate.The "Leak-Master® Easy Plus" offers the
compounder and discharge unit and prevents the PVC ideal combination of all the advantages of water bath
compound from being exposed to excessive temperatures. testing with the rich possibilities of digital control. With
The new two-stage configuration enhances ease of use this, the quality manager can predefine standardized
and operator safety. For instance, the tube and diverter test programs and electronically record and document
valve can be operated and cleaned without tools. The all the data from the leak tests as performed. If
single screw discharge unit, which generates the pressure required, the testing device can even be integrated into
required for pelletization, is arranged at right angles a wider network.The new high-resolution touch display
to the compounder, so helping to keep the overall unit and the new user interface offer an even clearer and
short. Depending on requirements, screw lengths of 4 more intuitive
or 6 L/D are possible. The swivelable, easy access BUSS u se r-frie ndly
die-face pelletizing unit is equipped with a two-, three-, menu navigation,
or four-bladed knife and is likewise mounted on the pe rfe ct in g
discharge unit to save space. The adjustable blade drive the inspection
ensures optimum cutting quality and uniform, cylindrical process and the
pellets. A braked motor securely locks the knife drive, so documentation of
greatly increasing safety for maintenance and cleaning the measurement
personnel. A sensor on the heated die plate sensor trips results for the
an automatic safety shutdown if the maximum permissible quality inspector.
pressure is exceeded.The decoupled configuration has Products, users
particular advantages over our usual conical twin-screw and test programs
discharge unit as it helps to minimize residence times for can be created
the thermally sensitive compound in the cylinder and so quickly and easily. After logging on to the device and
provides effective protection from degradation.There are selecting the product to be tested, the user places
currently five members of the COMPEO family, beginning the package in the test chamber filled with water,
with the model 55 for throughputs from approximately 150 closes the lid and starts the test program. The pre-set
kg/h up to the model 176 for PVC compound throughputs vacuum is generated automatically and maintained for
as high as around 12,500 kg/h. the defined period.

41 May 2021 Plastics News