WSB 2200 pages

MAGUIRE
WSB 220
Gravimetric Blender
Product Technical Data Sheet
Design
The Maguire Weigh Scale Blender™ (WSB) range
of gravimetric batch blenders are for all plastics
converting businesses for all types of extrusion
applications, and also all Injection and Blow
Moulding applications.
The WSB 220 is part of the 200 Series range consisting of 1 hopper fitted with 2 material compartments.
Operation
Each material is dosed by a stainless steel slide
gate. The slide Gate is capable of dosing a wide
ranger of settings, from as little as 1% to 100%,
based on an average density free flowing material
(0.65 BD).
The hoppers are mounted above the Weigh Bin with
a default 2000g batch size.
In normal operation the system tares the weight of
the weigh bin and then each material is dispensed.
Control
The WSB Controller has 124 standard features
and functions that technically make it lead the
industry regarding blending control.
Key to this is the continuous calibration of materials ensuring accurate dispenses of every material within the blend.
The Controller every dispense updates the
Regrind, Natural, Colour and Additive are dispensed gram/second flow rate of each material, ensurin sequence, weighing each material after each dis- ing consistent accuracy.
pense confirming material required before moving
on to the next material until the batch is complete.
The completed batch is released into the mixing
chamber, and mixed with the previous batch to ensure a homogenous mix.
Material blending is controlled by a level sensor
mounted in the upper part of the mix chamber.
When the sensor is covered the blender will not
Settings are made easily by either user friendly
thumbwheels, or entering settings directly on
the keypad.
For special functions these can be easily accessed and set via the password protected keypad.
There is audible alarm and strobe light with silence function, should a batch be incomplete, for
dispense any further batches. The level of material
example running out of additives or master-
in the mix chamber is critical to good mixing.
batches.
As material in the mix chamber is consumed the
Setup and Operation reports can be printed di-
sensor is uncovered and then the blender then
rect to a USB key.
commences the next cycle.
Data is also available via Ethernet or serial
ports, allowing remote access and monitoring to
download settings and check job progress.
Integration to other control or ERP systems can
be made via leading fieldbuses or OPC interfaces