Doubled Throughput Makes Advantages of Vacuum Resin Drying Available for a Wider Range of Molding and Extrusion
New VBD™ 300 Dryer from Maguire Products Is Sized for Many General-Purpose Injection Molding Applications as well as Low- to Mid- Throughput Extrusion Uses
A new vacuum resin dryer enables more molding and extrusion processors to obtain the substantial advantages of vacuum dryers over conventional desiccant systems , including lower operating cost , increased efficiency , and greater control over the drying process .
The VBD™ 300 vacuum dryer from Maguire Products , Inc . achieves throughputs of up to 300 lb . ( 136 kg ) per hour , which is double the capacity of the company ’ s VBD 150 model . While the VBD 150 is sized for the throughputs of many injection molding machines and of small extrusion lines like those for medical tubing , the new VBD 300 model opens the benefits of vacuum resin drying to a broader range of applications . Maguire also offers the VBD 1000 dryer for high-volume operations .
In comparison with desiccant dryers , the VBD vacuum dryer consumes 60 % less energy , dries resin in one-sixth the time , and substantially reduces the heat history to which polymer is exposed . The speed with which the VBD system removes moisture makes properly dried polymer available for production only 35 minutes after a cold start .
Like other VBD models , the VBD 300 dryer is a gravimetric system that employs load cells that precisely monitor the weight of material at two critical points , making possible precise control over material consumption and documentation of process conditions for certification to customers . Use of load cells also enhances control over the drying process , according to Frank Kavanagh , vice president of sales and marketing for Maguire Products .
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