The Ottevanger pellet coater is extremely suitable for adding and mixing liquids uniformly to pellets and extrudates.
The liquids are dosed through several spray heads to produce a gradual mixing of the liquids and the dry product.
The cylinder of the coater, made of stainless steel or steel st 37, has a 50-mm-thick insulation jacket. Heating elements in this jacket provide a temperature level that promotes moisture absorption and prevents contamination of the cylinder. Large hinged inspection hatches along the entire length provide easy access to the coater interior.
As well as oil and/or fat it is possible to add vitamins, enzymes, etc. in small quantities. Dosing systems can be supplied for these substances but these are very product-specific.