Metal Control Solutions for the Molded and Extruded Plastics Industry
Plastic manufacturing involves high-volume handling of raw resins, additives, and regrind material, often through gravity-fed, pneumatic, or vacuum conveying systems. Tramp metal can be introduced from:
Incoming resin shipments
Grinder/granulator wear
Material regrind contamination
Pneumatic conveying and line abrasion
Wear of processing equipment
Even trace amounts of metal contamination can damage screws, barrels, nozzles, dies, and tooling, leading to costly downtime and defective molded parts. MPI’s magnetic separation solutions are engineered to capture ferrous and weakly magnetic contaminants before they reach extrusion, injection, or blow molding machines.
MPI helps plastics manufacturers achieve clean, efficient, and damage-free production by removing metal contaminants from virgin, recycled, or blended resin streams. Whether your plant handles high-throughput molding, multi-material extrusion, or food-grade packaging production,
MPI provides:
Maximum equipment protection
Improved part quality
Reduced maintenance downtime
Compliance with food/medical standards
Material reclamation efficiency
Smooth production with fewer line stoppages
INDUSTRY GUIDE – Advancing Molded & Extruded Plastics Processing Through Smarter Metal Control
Metal contamination in plastics processing doesn’t always cause immediate failure - it damages screws, barrels, and dies, creates part defects, and increases maintenance costs. Learn how to protect equipment and maintain consistent product quality.
Download our industry guide to learn:
Where metal contamination enters plastics processing and regrind streams
How “blind cleaning” leads to downtime, lost throughput, and contamination risk
How real-time monitoring with Intell-I-Mag® improves part quality, equipment protection, and process reliability
Turnkey Solutions for Molded and Extruded Plastics From Magnetic Products, Inc
Protects Critical Processing Equipment
MPI magnetic separators remove tramp metal that could otherwise damage high-value components such as extruder screws, hot runners, and molds.
Reduces Downtime and Maintenance
By capturing debris early, MPI solutions prevent system clogs and tool wear, reducing unplanned service and extending equipment lifespan.
Maintains Material Purity and Part Quality
Metal in plastic can cause streaks, burn marks, voids, or structural weaknesses. MPI systems keep resin, and additives clean for flawless finished parts.
Supports Regrind and Closed-Loop Systems
Contaminant removal is especially important when reprocessing scrap or incorporating recycled material into production—MPI keeps regrind clean and safe.
Customizable for Any Conveying Method
Available in gravity-fed, pneumatic, or inline vacuum line designs, MPI solutions fit seamlessly into plastic processing workflows without compromising throughput.
Tool-Free Quick Cleaning and Maintenance
Fast-access drawers and self-cleaning options reduce labor and support frequent color/material changeovers without extended downtime.
Food-Grade Options for Medical and Packaging Applications
MPI offers polished housings, sanitary seals, and FDA-compliant construction for plastic parts used in food contact or medical environments.
Compact, Modular Designs
Space-saving MPI units integrate easily above hoppers, dryers, blenders, or feeder necks, and are compatible with most central conveying systems.
How Does the Molded and Extruded Plastics Industry Use Magnets?
