First, the materials for food-grade screw elements should meet the relevant food safety requirements, such as In Regulation (EU) No. 10/2011 on plastic materials and articles intended to come into contact with food. The specific migration of heavy metal has been placed clearly.
Secondly, the pet feed extruder needs to keep more nutrient elements with a lower temperature, so the structure is quite different from the screw for plastic extruder. It uses very few mixing elements or kneading elements.
Kalshine provides high-quality screw elements for food extruder. It is a good choice for you to try using Kalshine’s screw, well processed and cost-effective. Contact market@kalshine.com for more information.