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Case History: New Feeders Boost EPS Production and Efficiency at Bandex

From Acrison, Inc.
 

 
Bandex S.A., located in San Luis, Argentina, manufactures disposable containers and plates from expanded polystyrene (EPS). The production line extrudes and thermoforms virgin polystyrene, recycled polystyrene, talc, and masterbatch color pellets. Bandex is the market leader in EPS packaging for fresh produce in Argentina. When the company began operation in 1988, it planned to become the most important polystyrene packaging supplier in the Mercosur region. Mercosur, also known as the Southern Common Market, includes Argentina, Brazil, Uruguay, and Paraguay. (Chile and Bolivia are associate members.) The region has a population of 220 million. The Bandex plan included upgrading its manufacturing facility, so the company added disc-type volumetric feeders to the production line. The feeders, built by a recognized manufacturer of feeding equipment, were a critical component of the processing system. But the feeders had a problem. They failed when polystyrene pellets lodged between the discs and the discharge. This had two effects: 1) lost production because of downtime for repairs; and 2) lost production because of poor product quality (inconsistencies in the foam sheet).
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