The large twin-screw puffing extruder has the core advantages of strong process adaptability, high product quality, excellent production efficiency, and high raw material utilization in pet feed production. It is the core equipment of high-end pet feed production lines.
The specific advantages are as follows:
Wide range of material adaptation to meet the diversity of pet feed formulas
Pet feed formulas usually contain various raw materials such as meat, fish meal, grains, fruits and vegetables, additives, etc., with complex ingredients and significant differences in physical and chemical properties. The same/opposite meshing structure of the twin-screw extruder can produce strong shear, mixing, and conveying effects, which can fully crush high protein raw materials such as fish meal and meat and bone meal, and evenly disperse thermosensitive additives such as vitamins and probiotics, avoiding local overheating and nutrient loss.
At the same time, the equipment supports flexible adjustment of screw speed, barrel temperature, and feeding speed, which can adapt to the feed production needs of young, adult, and elderly pets as well as different breeds (dogs, cats, hamsters, etc.), achieving integrated processing of multiple categories of pet food such as granular materials, puffed materials, sandwich materials, and chewy snacks.
Controllable puffing effect, improving the palatability and digestibility of pet feed
The palatability of pet feed directly affects the willingness of pets to eat, while the digestibility determines the efficiency of nutrient absorption. The twin-screw extruder uses precise temperature control (adjustable from 80-180 ℃) and high-pressure puffing (with a cylinder pressure of 3-10MPa) to fully gelatinize the starch and moderately denature the protein in the raw material, thereby destroying the anti nutritional factors (such as phytic acid and trypsin inhibitors) in the raw material.
The puffed feed particles have a loose and porous structure, which not only has a crispy taste and a rich aroma, but also reduces the digestive burden on pets. The protein digestion rate can be increased by 10% -15%, reducing the odor and excretion of feces. In addition, the device can accurately control particle size (1-12mm optional) by adjusting the die aperture and cutter speed, adapting to the feeding needs of pets of different body types.
High production efficiency, stable operation, suitable for large-scale mass production
The twin-screw synchronous drive design of large twin-screw extruders has strong conveying capacity and is not prone to material blockage. The hourly production capacity can reach 3-10 tons, which can meet the large-scale production needs of large and medium-sized pet feed enterprises.
The core component screw is made of wear-resistant alloy material, matched with a high torque gearbox, which can withstand long-term high load operation and extend the service life by more than 30% compared to single screw equipment; The body is equipped with an intelligent temperature control and online monitoring system, which can monitor parameters such as barrel temperature, pressure, and screw speed in real time, automatically warn of faults, reduce downtime probability, and achieve a comprehensive operating efficiency of over 95%.
Adequate nutrition retention ensures the quality and safety of pet feed
Pet feed requires high stability of nutritional components, especially heat sensitive substances such as vitamins and probiotics. The short-term high-temperature treatment process of twin-screw extruders (with raw materials staying in the barrel for only 30-60 seconds) can achieve puffing while minimizing the loss of thermosensitive nutrients; Some models are also equipped with vacuum exhaust devices, which can effectively remove odors and harmful gases (such as ammonia) from raw materials, and enhance the flavor of feed.
In addition, the device body is made of all stainless steel material, with no hygiene dead corners, meeting food grade production standards, easy to clean and disinfect, effectively avoiding cross contamination, and ensuring the food safety of pet feed.
High utilization rate of raw materials, reducing production costs
Twin screw extruders can efficiently process low-cost raw materials such as secondary flour, bran, and animal by-products. By expanding and modifying them, their nutritional value and palatability can be improved, reducing dependence on high priced and high-quality raw materials; At the same time, the precise molding process of the equipment can reduce the pulverization rate of feed particles (pulverization rate ≤ 3%), reduce the loss of raw materials in the production process, and improve the comprehensive utilization rate of raw materials by 8% -10%, significantly reducing the production cost of enterprises.