Metal Detectable Selection Criteria
Metal Detectable plastics can add a whole new level of foreign contaminant prevention. What plastic is best for your application? What criteria should you consider when optimizing a detectable material for your food application? Let’s look at a few selection criteria to consider when specifying detectable materials.
ENVIRONMENT DURING PRODUCTION
- •Wet, Dry, Liquid, Frozen or Paste
- •Temperature (Plastics soften as temperature increases)
- •Pressure and Velocity (PV)
- •Friction / Abrasion
Certain materials can react to chemicals.
- Acidic or Basic (E.g., Tomatoes, Apples)
- What chemicals is the part exposed to during cleaning?
- Continuous exposure to hot water or steam
METAL DETECTOR TYPE:
There are several different manufacturers of detection systems. Each detector requires a specific calibration depending on the size, location, and process.
- •Calibration Levels
- •Orientation to Food Stream
- •Aperture Dimensions
Depending upon the sensitivity of your system, smaller pieces (< 3mm) that may break off and fall into the production stream are capable of consistently being detected, allowing product to be set aside for visual inspection, preventing a potentially expensive recall.
We have a long history in proposing the most suitable radiation resistant polymer for any environment. Contact dana Scott or your nearest port plastics sales office for all of your material needs.
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|Metal Detectable Selection Criteria- PDF|