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  • The PSPA technology allows to applicate additives and ingredients after mechanical and thermal processes with the benefit to don’t ruin their physical properties
  • Decreases the possibility of cross-contamination in the production line
  • Reduce the consumption of additives with economic savings
  • Suitable for all types of powdered additives (whey, pet food digest, fish paste, flavorings, etc.)


PSPA™ is a group of technologies designed for the application of additives, antibiotics, vitamins, enzymes and powdered ingredients in general. The application takes place at the end of the line, after the cooler, avoiding cross-contamination and avoiding thermal and mechanical stress generated by machinery such as a press or extruder.
Production processes, used to manufacture industrial feeds for monogastric animals, ruminants, aquaculture and petfood, involve at least one step with high temperatures. The practice of feed sanitization via exposure to temperature higher than standard, is rapidly gaining ground worldwide for obvious animal health benefits.
Consequently, the analytical recovery of many pulverous additives such as antibiotics, coccidiostats, zinc oxide, vitamins, enzymes, living yeast, probiotics, prebiotics, etc. is seriously challenged. Studies show that concentration losses can range from 30 to 70% depending on the additive and on the process. To compensate for these losses, over dosing has become a common practice in the feed industry to ensure the proper coverage of animal nutritional requirements.

Moreover, the introduction of additives, via the premix, in the feed blender generates an inevitable carry over between production batches. This can result in a cross contamination when it comes to pharmaceutically active ingredients or nutritional additives that are toxic in certain animal species (such as copper for sheep). This cross contamination usually involves the entire production and transport lines generating slow down for thorough cleaning, limitation of recipes and an overall increase of costs without suppressing the risk.

Our solution is to incorporate these pulverous additives at the end of the production process using our PSPA technology that:
– reduces the consumption of expensive feed additives,
– reduces the incidence of non-conform products because of inadequate concentration or because of cross contamination

With the PSPA technology, PLP can guarantee an efficient pellet coating with the desired additive: the result is a homogeneous coverage and a durable additive attachment to the pellet surface resulting in a low c.v.
The PSPA solution can combine different technologies :

Gravimetric and accurate dosing of the pellets and proportional dosing of the additives.
Continuous paddle coater (MT series) or drum coater, both specifically designed equipment for an efficient coating of granular substrates.
Spraying of the pulverous additive(s) onto pellets using the properties of triboelectric *.
For difficult applications and for best results we can use, Seal4FeedTM**.

*We use the electrostatic attraction between two materials that are charged differently: the pulverous additive to be sprayed passes through our triboelectric gun where an intense electric field generates a negative pole on each single particle. The resulting repulsion forces dispose the pulverous particles in a cloud that is subsequently strongly attracted by the pellet surface, acting as a ground source.

** Seal4Feed is a liquid based modified starch, GMO free, which creates a coating film, protects the additive from oxidation and improves pellet palatability. Seal4FeedTM is an exclusive product from the company Arda Innovations.