WSB 18500 pages

MAGUIRE
WSB 1850
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 1850 is part of the 1800 Series range
consisting of 1 hopper fitted with 5 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
percentage settings (1% to 4%) a Slide Gate Restrictor (SGR-1) is recommended to restrict the
opening of the gate by 50%- this reduces flow and
enhances control.
The hoppers are mounted above the Weigh Bin with
a default 18kg batch size.
In normal operation the system tares the weight of
the weigh bin and then each material is dispensed Regrind, Natural, Colour and Additive in sequence,
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
gram/second flow rate of each material, ensuring consistent accuracy.
Settings are made easily by either user friendly
thumbwheels, or entering settings directly on
the keypad.
weighing each material after each dispense confirm- For special functions these can be easily acing material required before moving on to the next cessed and set via the password protected keymaterial.
pad.
The complete batch is released into the mixing
There is audible alarm and strobe light with si-
chamber, and mixed with the previous batch to en-
lence function, should a batch be incomplete, for
sure a homogenous mix.
example running out of additives or master-
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
batches.
Setup and Operation reports can be printed direct to a USB key.
dispense any further batches. The level of material
Data is also available via Ethernet or serial
in the mix chamber is critical to good mixing.
ports, allowing remote access and monitoring to
As material in the mix chamber is consumed the
sensor is uncovered and then the blender then
commences the next cycle.
download settings and check job progress.
Integration to other control or ERP systems can
be made via leading fieldbuses or OPC interfaces