Preventing Powder Build-Up in Stainless Steel Chute Pipes|Premium Fine Peening (PFP)
At a food processing plant, PFP treatment was applied to stainless steel (SUS) chute pipes to prevent powder adherence (bridging and blockage) during the transport of powders.

Customer's Challenge
The customer had been using Teflon coatings on chute pipes to transport powder to measuring equipment. However, concerns about potential contamination led them to consider PFP treatment.
During discussions, we learned that the customer had previously tried other powder adhesion prevention methods. Although initial tests showed promising results, these solutions failed to perform effectively in real-world conditions. Due to this history, they were concerned about the actual effectiveness of PFP in their environment and whether they could secure internal approval for the change.
Kanmeta Engineering's Solution
PFP treatment was selected for the following reasons:
Pre-Testing: We conducted pre-release tests using sample powder (free of charge), verifying effectiveness and securing easy internal approval.
Condition Assessment: We examined and reported on the current chute pipe condition, suggesting pre-treatment measures to address areas prone to blockage or bridging.
No Coatings Needed: As no coatings were involved, the risk of contamination was completely eliminated.
Textured Surface: The textured surface reduced powder contact, minimizing adherence.
Results
✔The real-world results matched those of the pre-tests, confirming effectiveness.
✔Improved powder flowability stabilized the powder transport rate (leading to PFP treatment being applied to the measuring equipment as well).
✔Eliminating contamination during operations contributed to better product quality. Discover how our PFP treatment can enhance your production efficiency and cut maintenance costs!