Case Study: Magnetic technology solves daily challenges in plastics recycling

By Bunting   

Features Bunting clean flake high frequency eddy current separator PET plastics recycler video

A major plastics recycler turned to Bunting to solve a costly dilemma. The company shreds millions of plastic bottles every day to make PET (polyethylene terephthalate) flake. The clean flake will ultimately be sold to injection molding companies.

However, too much metal contamination was found in their feed material and metal detectors were rejecting more than 2,500 lb of PET flake per day. That’s anywhere from $200 to $500 per ton, per day, going to waste. Something needed to be done.

An attractive, yet repelling solution

The plastics recycler determined adding Bunting’s High Frequency Eddy Current Separator (HFEC) would remove shredded aluminum and other contaminants before it reaches the metal detector. The HFEC utilizes magnetic forces to repel non-ferrous metals and increase separation from non-conductive materials. This helps plastics recyclers achieve the cleanest plastic flake possible.

Watch video demonstration of Bunting HFEC:

A perfect blend of magnetic science and engineering

Bunting’s HFEC has a unique magnetic rotor design that provides exceptionally strong gauss level. This enhances the eddy current field intensity and results in greater separation of small metallic particles from plastics. The HFEC is available in three widths: 1, 1.5, and 2 m, allowing for the optimizing of the unit to the flow rate and product mix.

Top: Bunting’s High Frequency Eddy Current Separator getting loaded for shipment.

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