The Main Factors Affecting The Quality Of Feed Pellets

          poultry feed making machine Manufacturers, the formula is to ensure the quality of the pellets is an important factor, moisture: raw materials 11% -13%, after tempering 15% -17%, generally 1% corresponds to 11 ℃; starch: raw starch surface roughness, pelleting resistance, poor bonding properties; pasteurized starch bonding properties are good, good quality particles. Barley and wheat starch is better than corn starch. If the grains have been cooked before tempering (e.g., dried corn), the pelleting yield decreases. Therefore, it is better not to choose dried ones when purchasing raw materials.
          Protein: higher protein content in the formula, easier to granulate, the quality of particles is also better, because the protein heat plasticity, viscosity increases, so that the granulation yield, good quality; protein content is too high, the effect of granulation is reduced due to the absorption of steam ability to seriously reduce the tempering temperature is low. In addition, non-protein nitrogen (such as urea, etc.) is high, the granulation yield is reduced; fat: the right amount of fat, frictional resistance is small, the ring die wear is small, low energy consumption, good quality particles, generally before granulation control within 3%; fat content is too high, the quality of the particles is reduced, the particles are soft, fragile. When adding a high dose of fat, it is appropriate to add 30 % of the full amount at the mixer and spray 70% of the full amount after the granulator.
           Crude fiber: appropriate crude fiber content (3 % ~ 5 %), is conducive to the bonding of granular materials, reduce the chalking rate of particles, improve granulation yield. However, when the crude fiber content exceeds 10%, due to the poor bonding of the fiber itself, the bonding between the feed particles decreases, but also affects the ability of the feed to absorb steam, so that the hardness of the feed particles, the forming rate and yield is reduced, and the wear and tear of the equipment is seriously increased.