“Cost-effectively recycling foam plank has been an issue in many geographic locations because shipping scrap can oftentimes cost more than the value of the load. Without an economic incentive to recycle, scrap frequently ends up in landfills,” explains, Tony Smith, general manager, engineered products, Pregis
As part of its ongoing commitment to environmental initiatives, Pregis wanted to give manufacturers, converters and fabricators of PE foam plank a cost-effective alternative to aid in recycling efforts.
“A typical foam plank size is 48- x 108-inches. Fabricators use a variety of methods to cut the plank into the appropriate size and shape to protect and cushion products. End caps are just one example. What ends up being discarded are the leftover outer edges and other small pieces. When you multiply that by two or three hundred planks per day, that becomes sizeable,” Smith says.
Pregis’ Densinator compactor takes PE plank scrap, which is fed into a hopper, shredded, compacted and then run through a light heating process. The material is compressed to 1/15th its original size. The end result is a high-density PE log (6- x 6- x 48-inches) with a thin rigid outer shell which helps maintain the compact brick shape.
Unlike bailing systems, no strapping is required, plus dust and debris are reduced. The logs can then be fed directly into most typical plastic reclaim systems.
“You can load 30,000- to 35,000-pounds of Densinator-produced logs onto a 40-foot tractor trailer. This compares to only 2,000- to 3,000-pounds of foam in an uncompressed state,” says Smith.
The Densinator is easy and quick to install and startup. Minimum floor space is required and operation is safe, quiet and efficient. The compactor can handle both clean and dirty PE foam.
“The Densinator will help users of PE foam plank reduce a variety of fees including landfill, bin rental and hauling. Additionally, floor space requirements for storing scrap will be minimized as well as other “housekeeping” issues. The end result is an improved scrap value and a potentially higher recycling rate,” Smith concludes.