कंपनी की खबर Key Benefits of Twin screw pet food extruders

Precise temperature and pressure control enhances nutrient conversion efficiency. The Twin Screw Pet Feed Extruder is equipped with an independent steam heating system and segmented temperature control devices. Compared to single-screw extruders that rely solely on frictional heating, it precisely controls the extrusion chamber temperature at 120-160℃ and stabilizes the pressure at 3-6MPa, with temperature and pressure fluctuations ≤±3%. This precise control increases the starch gelatinization rate in raw materials from around 30% in traditional processing to over 80%. The restructured starch molecules are more easily absorbed by the intestines of farmed animals. Simultaneously, the high temperature and pressure promote protein denaturation, breaking down anti-nutritional factors (such as trypsin inhibitors), making amino acids easier to absorb and utilize, and increasing crude protein digestibility by 20%-30%. For example, when using a twin-screw extruder to produce aquatic feed, fish can achieve a nutrient absorption rate of over 85%, far exceeding that of feed produced by single-screw equipment, reducing nutrient waste and water pollution.

Optimizing feed physical properties improves palatability and stability. The efficient shearing and mixing action of the twin screw pet pellet making machine ensures thorough mixing of raw materials such as fishmeal, corn, and premixed feed, resulting in even distribution of nutrients in each pellet and preventing uneven growth in farmed animals due to nutrient stratification. Simultaneously, precise extrusion processing creates structurally stable pellets with a buoyancy rate of ≥95% for floating feed and water resistance of 8-12 hours for sinking feed, far superior to feed produced by single-screw extruders. The porous and loose structure formed inside the pellets allows for controlled feed hardness within the suitable range of 2-5kg, preventing damage to the animals' mouths while meeting their chewing needs, significantly improving palatability. Furthermore, high-temperature processing reduces the loss of heat-sensitive nutrients such as vitamins, controlling the loss rate to within 10%, while killing over 90% of harmful microorganisms, improving feed safety and storage stability.

The twin screw pet feed extruder machine offers strong nutritional customization capabilities, adapting to different farming needs. By adjusting parameters such as temperature, pressure, and screw speed, the nutrient conversion rate and physical properties of the feed can be flexibly controlled to achieve customized production. For example, when producing fish fry feed, the extrusion temperature and pressure can be reduced to control the starch gelatinization degree at 60%-70%, keeping the feed fine and easily absorbed. When producing adult fish feed, the extrusion parameters can be increased to enhance pellet stability and water resistance. Simultaneously, twin-screw extruders can precisely add minerals, attractants, and immune enhancers to ensure nutritional balance. They can also customize feed formulas according to the needs of different aquaculture species and growth stages—a core advantage that traditional feed processing equipment struggles to achieve.

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