WSB 2600 pages

MAGUIRE
WSB 260
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 260 is part of the 200 Series range consisting of 1 hopper fitted with 6 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).
For enhanced accuracy and consistency on small
Control
The WSB Controller has 124 standard features
and functions that technically make it lead the
industry regarding blending control.
percentage settings (1% to 4%) a Slide Gate Re-
Key to this is the continuous calibration of mate-
strictor (SGR-1) is recommended to restrict the
rials ensuring accurate dispenses of every mate-
opening of the gate by 50%- this reduces flow and
rial within the blend.
enhances control.
The Controller every dispense updates the
The hoppers are mounted above the Weigh Bin with gram/second flow rate of each material, ensuring consistent accuracy.
a default 2000g batch size.
In normal operation the system tares the weight of
Settings are made easily by either user friendly
the weigh bin and then each material is dispensed - thumbwheels, or entering settings directly on
Regrind, Natural, Colour and Additive in sequence, the keypad.
weighing each material after each dispense confirming material required before moving on to the next
material.
The complete 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
dispense any further batches. The level of material
in the mix chamber is critical to good mixing.
As material in the mix chamber is consumed the
sensor is uncovered and then the blender then
commences the next cycle.
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
example running out of additives or masterbatches.
Setup and Operation reports can be printed direct to a USB key.
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