MAGUIRE WSB 950 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 950 is part of the 900 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 9000g 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, weighing each material after each dispense confirm- 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. ing material required before moving on to the next For special functions these can be easily ac- material. cessed and set via the password protected key- The complete batch is released into the mixing pad. chamber, and mixed with the previous batch to en- There is audible alarm and strobe light with si- sure a homogenous mix. lence function, should a batch be incomplete, for 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. 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

Product Technical Data Sheet Gravimetric Blender