WCA March 2011

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Technology news
Wire & Cable ASIA – March/April 2011 59
A gravimetric-blender design innovation
that has reduced downtime and
enhanced user-friendliness for plastics
operations in the low throughput range
is now available in a medium-capacity
blender required by many injection
moulders and extrusion processors.
The Maguire® WSB 260R4 has six
hopper bins, including two large ones
for natural resin and regrind and four
minor-ingredient bins that are
removable for fast colour and additive
changes and easy cleanout.
While materials in the large bins are
dispensed by means of slide gates like
those in many other Maguire blenders,
additive dispensing is carried out with
vertical valves, which provide a high
degree of accuracy when dosing
minor ingredients.
The new blender accommodates
process throughputs up to 400 kg
(900lb) per hour, more than double the
maximum throughput for the
next-largest Maguire blender equipped
with removable hopper bins.
“The WSB 260R4 blender is ideal for
processors who make frequent
product or colour changes, since they
can quickly empty and refill the
removable bins or even keep
pre-loaded duplicate bins on standby,
reducing the time for colour changes
to the few seconds it takes to replace
one bin with another,” said Frank
Kavanagh, Maguire Products sales
manager.
The lightweight removable bins are
equipped with integral shutoffs to
eliminate spillage and hinged lids for
easy clean-out. There is easy access
to all material contact surfaces of the
blender, hoppers, feeders, weigh
chamber, and mixing chamber,
permitting rapid colour change without
the use of tools.
Maguire Products – USA
Fax: +1 610 459 2700
Email:
Website:
Large hopper at top left in this photo of m m
the Maguire® WSB 260R4 actually
consists of two bins for natural resin
and regrind. To the right of this hopper
are four minor-ingredient bins for
colours and additives
Making it easier for users
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