This coater is a staple in the pet food industry, designed to precisely apply liquid supplements such as fat, enzymes, vitamins, antioxidants, and amino acids onto extruded pellets. It is also particularly effective for coating highly compact pellets that are difficult to treat with standard surface coating methods, even at low addition ratios.

Performance Characteritics

01 Versatility for Diverse Formulas

The system is built for extreme flexibility. The vacuum coater can operate at a vacuum level up to 200mbar (100mbar max) with minimal pressure loss (≤100mbar/5min). This powerful retention capability enables a wide grease addition rate of 1%–36%.

02 Guaranteed Uniform Coating

The machine achieves exceptional consistency using a horizontal double-shaft paddle mixing mechanism. This system tumbles and mixes materials at high-speed with counter-rotating paddles. Coupled with multiple sets of large-angle pressure atomizing nozzles, this guarantees a coating homogeneity coefficient of variation (CV) of ≤7%.

03 Gentle Mixing and Low Breakage

The internal design minimizes damage to the delicate pellets. It features specially angled and profiled paddles combined with a precise clearance between the trough and paddles, which ensures gentle handling and significantly minimizes pellet breakage.

04 Hygienic and Safe Design

Product safety and cleanliness are paramount. The entire machine is constructed from food-grade stainless steel with a simple, primarily welded structure. Material-contacting parts are flat and smooth to eliminate hygiene dead zones. A full-length discharge gate and wide-opening access doors ensure fast discharge, low residue, and convenient cleanup. All connecting parts are sealed with food-grade silica gel gaskets to maintain maximum food safety.