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PET bottle converter racks up efficiency

Manufacturer of PET containers uses new dome-and flange-trimming machine to cut scrap rate and increase throughput by 20%.

Penn tennis balls retail in a PET container trimmed in a dual process to provide efficient lidding consistency.
Penn tennis balls retail in a PET container trimmed in a dual process to provide efficient lidding consistency.

Increasing production efficiency is a constant goal at Owens-Illinois Plastics Group (Tolleson, AZ), a manufacturer of PET containers. In September 2001, O-I improved its container-making technology by adding a new, rotary-platform dome- and flange-trimming machine from Belvac Production Machinery (Lynchburg, VA).

Like the trimming machine that preceded it, the Belvac Model DT/FT 200 represents the final step in manufacturing widemouth PET containers. It’s used to shape the finish of a container so that a metal end can be seamed on as a lid.

Costing about $145ꯠ, the Belvac machine was a sound investment. Since it was installed, O-I has gained a 20% increase in throughput and a 20% reduction in scrap. O-I can output over 100 million containers annually utilizing the trimmer.

But it isn’t just efficiency that’s been boosted since the new equipment arrived. According to Tom Vondrasek, O-I plant manager, quality of trim has also been improved. He adds that this is critical in ensuring consistent seal integrity from container to container.

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