Con la mejora continua del nivel de vida de las personas y el creciente énfasis en la compañía de mascotas, La industria mundial de alimentos para mascotas se ha desarrollado rápidamente en los últimos años.. Las mascotas se van convirtiendo poco a poco en miembros importantes de la familia., y su salud dietética y calidad de los alimentos se han convertido en el foco de atención de los dueños de mascotas. Esto ha promovido la mejora continua de la tecnología y los equipos de procesamiento de alimentos para mascotas., plantear requisitos más estrictos para la seguridad, nutrición, Sabor y apariencia de la comida para mascotas.. Estamos comprometidos a proporcionar extrusoras profesionales especialmente diseñadas para la producción de alimentos., con amplia experiencia en el procesamiento de alimentos para mascotas, y puede proporcionar soluciones de procesamiento específicas para varios tipos de alimentos para mascotas, ayudar a las empresas a mejorar la eficiencia de la producción, garantizar la calidad del producto, y obtener una ventaja en la feroz competencia del mercado.
Este artículo se centrará en el campo de los alimentos para mascotas., explicación detallada sobre la tecnología de procesamiento de alimentos para mascotas, El principio de funcionamiento del soplado de extrusión de tornillo., las ventajas de nuestras extrusoras, y la aplicación específica de equipos de extrusión en la producción de alimentos para mascotas. También complementará los parámetros técnicos detallados., Detalles del proceso y puntos débiles de la industria para enriquecer el contenido., cumplir con el requisito de recuento de palabras de 3000-4000 palabras, y proporcionar referencias integrales y profesionales para empresas y profesionales relevantes en la industria de alimentos para mascotas..
1. Descripción general de la industria de alimentos para mascotas y características de procesamiento
1.1 Situación actual y tendencia de desarrollo de la industria de alimentos para mascotas
En los últimos años, El mercado mundial de alimentos para mascotas ha mostrado una tendencia de crecimiento constante.. Impulsado por factores como el aumento del número de mascotas, la actualización de los conceptos de consumo de mascotas, y la mejora de los residentes’ poder adquisitivo, la demanda de alta calidad, Los alimentos para mascotas nutritivos y funcionales han seguido aumentando.. Según estadísticas de datos relevantes., El tamaño del mercado mundial de alimentos para mascotas ha superado 100 mil millones de dólares estadounidenses, y se espera que mantenga una tasa de crecimiento de 5%-8% en los próximos años. entre ellos, comida seca para mascotas inflada, como el tipo de producto más común, representa más de 60% del mercado total de alimentos para mascotas, seguido de productos enlatados húmedos, productos semihúmedos y snacks para mascotas.
La tendencia de desarrollo de la industria de alimentos para mascotas se refleja principalmente en tres aspectos: primero, nutrición y salud. Los dueños de mascotas prestan cada vez más atención a la composición nutricional de los alimentos para mascotas., y productos con ingredientes naturales, sin aditivos, funcional (como la belleza del cabello, alimento del estomago, control de peso) Las características son más populares.; segundo, diversificación de tipos de productos. Con el enriquecimiento de los tipos de mascotas y las necesidades individuales de los dueños de mascotas, Los alimentos para mascotas se han desarrollado gradualmente hacia la segmentación., como comida para mascotas para diferentes edades (cachorros, perros adultos, perros ancianos), diferentes razas, y diferentes condiciones fisicas; tercero, Inteligencia y eficiencia de la tecnología de procesamiento.. Para satisfacer la demanda de producción a gran escala y garantizar la estabilidad de la calidad del producto., Las empresas procesadoras de alimentos para mascotas están introduciendo constantemente equipos de procesamiento avanzados y sistemas de control inteligentes para mejorar la eficiencia de la producción y reducir los costos laborales..
En este contexto, tecnología de extrusión y soplado, como tecnología central del procesamiento de alimentos para mascotas (productos inflados especialmente secos), se ha convertido en la clave para determinar la calidad de los alimentos para mascotas y la competitividad de las empresas. Nuestras extrusoras profesionales para la producción de alimentos para mascotas se desarrollan respondiendo a las características de la industria y la demanda del mercado., que puede resolver eficazmente los puntos débiles en el procesamiento de alimentos para mascotas y ayudar a las empresas a lograr una producción eficiente y de alta calidad..
1.2 Clasificación de alimentos para mascotas y sus características de procesamiento
Los alimentos para mascotas tienen una variedad de métodos de clasificación., que se puede dividir en diferentes tipos según la tecnología de procesamiento, contenido de agua, forma y uso del producto. entre ellos, Según la tecnología de procesamiento y el contenido de agua., Los alimentos para mascotas se dividen principalmente en productos secos inflados., productos semihúmedos, productos suaves e inflados, productos enlatados húmedos y snacks (o golosinas). Cada tipo de alimento para mascotas tiene sus propias características de procesamiento y requisitos de equipo únicos., como sigue:
1.2.1 Productos inflados secos:
El alimento seco para mascotas inflado es el tipo más común de alimento para mascotas., con un contenido de agua de 10%-12%. Entre sus principales materias primas se encuentra la harina de carne., harina de pescado, cereal (maíz, trigo, arroz), harina de soja, vitaminas, minerales y otros aditivos. El proceso de procesamiento de productos inflados secos está estrechamente relacionado con el proceso de inflado., que requiere el uso de equipos de extrusión e inflado para procesar las materias primas en productos granulares con tamaño uniforme, sabor crujiente y buena palatabilidad. Las características de los productos inflados secos son una larga vida útil., almacenamiento y transporte convenientes, y bajo costo de producción, que son adecuados para la producción a gran escala y populares entre los dueños de mascotas.
El requisito clave de procesamiento de los productos inflados secos es que las materias primas deben estar completamente infladas., para que el almidón de las materias primas esté completamente gelatinizado, que favorece la digestión y absorción de las mascotas. Al mismo tiempo, El producto debe tener cierta dureza y textura crujiente para satisfacer las necesidades de masticación de las mascotas y ayudar a limpiar sus dientes.. Esto impone altos requisitos a la presión de extrusión., Temperatura y velocidad del tornillo del extrusor..
1.2.2 Productos semihúmedos:
El alimento semihúmedo para mascotas tiene un contenido de agua de 25%-35%, que está entre productos secos y húmedos. Sus materias primas son similares a los productos secos inflados., pero más humectantes (como propilenglicol, sorbitol) Se añaden para mantener la suavidad y humedad del producto.. El proceso de procesamiento de productos semihúmedos también necesita un tratamiento de inflado., Pero el grado de inflado es menor que el de los productos secos.. El producto tiene las características de sabor suave y buena palatabilidad., que es adecuado para mascotas con poca capacidad de masticación (como mascotas mayores, mascotas enfermas).
La dificultad de procesamiento de los productos semihúmedos radica en el control del contenido de agua y la prevención del deterioro del producto.. Por lo tanto, en el proceso de procesamiento, es necesario controlar estrictamente la temperatura y humedad de cada enlace, y seleccionar conservantes y humectantes adecuados para garantizar la vida útil del producto..
1.2.3 Productos inflados suaves:
El alimento blando inflado para mascotas tiene un contenido de agua de 15%-25%, que es un producto entre productos secos inflados y semihúmedos. Su proceso de elaboración es similar al de los productos secos inflados., pero la fórmula y los parámetros de extrusión se ajustan para que el producto sea suave y elástico.. Los productos blandos inflados combinan las ventajas de los productos secos y semihúmedos., con buena palatabilidad y fácil digestión, que es adecuado para una variedad de mascotas.
1.2.4 Productos enlatados húmedos:
La comida húmeda enlatada para mascotas tiene un contenido de agua de más de 70%, utilizando principalmente carne fresca, pez, verduras y otras materias primas, que se procesan mediante cocción, envase, esterilización y otros procesos. Diferente a otro tipo de productos, Los productos enlatados húmedos no necesitan tratamiento de inflado., y sus principales eslabones de procesamiento son la cocción y la esterilización.. El producto tiene las características de una rica nutrición., fuerte palatabilidad y alto contenido de humedad, que es adecuado para mascotas a las que no les gusta beber agua o necesitan nutrición suplementaria.
La clave para el procesamiento de productos enlatados húmedos es garantizar la frescura y seguridad de las materias primas., y controlar estrictamente la temperatura y el tiempo de esterilización para matar las bacterias dañinas en el producto y extender la vida útil. Al mismo tiempo, es necesario asegurar que los componentes nutricionales del producto no se pierdan durante el proceso de cocción y esterilización..
1.2.5 Bocadillos para mascotas (o golosinas):
Los snacks para mascotas son alimento auxiliar para las mascotas., utilizado principalmente para recompensar a las mascotas, mejorar su estado de ánimo y complementar la nutrición. Los tipos de snacks para mascotas son diversos., incluyendo bocadillos inflados, bocadillos de carne seca, bocadillos cecina, bocadillos dentales, etc.. entre ellos, los snacks inflados representan una gran proporción, y su proceso de procesamiento es similar al de los productos secos inflados., pero la fórmula es más refinada, y se agregan más agentes aromatizantes y aditivos funcionales para satisfacer el sabor y las necesidades funcionales de las mascotas..
Los snacks para mascotas tienen altos requisitos de sabor, apariencia y funcionalidad. Por ejemplo, Los snacks dentales deben tener cierta dureza y textura para ayudar a limpiar los dientes de la mascota y prevenir el cálculo dental.; Los snacks para embellecer el cabello necesitan agregar ingredientes como lecitina para ayudar a mejorar la calidad del cabello de la mascota.. Esto requiere que la extrusora tenga buena flexibilidad y capacidad de ajuste para satisfacer las necesidades de procesamiento de diferentes tipos de snacks..
Cabe señalar que, excepto los productos enlatados, la mayoría de los tipos de alimentos para mascotas están estrechamente relacionados con el proceso de inflado. El inflado no es sólo la parte central del procesamiento de alimentos para mascotas, pero también afecta directamente la calidad, gusto, Nutrición y digestibilidad de los alimentos para mascotas.. Por lo tanto, Elegir el equipo de extrusión adecuado y dominar la tecnología de extrusión científica son cruciales para las empresas de procesamiento de alimentos para mascotas..
2. Tecnología central del procesamiento de alimentos para mascotas: Tecnología de extrusión y soplado
La tecnología de extrusión e inflado es una tecnología de procesamiento clave que integra la mezcla, amasadura, calefacción, extrusión y soplado. Ha sido ampliamente utilizado en la producción de alimentos para mascotas debido a sus ventajas de alta eficiencia de producción., buena calidad del producto, Gran adaptabilidad a las materias primas y amplia gama de aplicaciones.. En el procesamiento de alimentos para mascotas, La tecnología de extrusión se utiliza principalmente para realizar el inflado de materias primas., hacer que el almidón se gelatinice, la desnaturalización de las proteínas, y mejorar la palatabilidad y digestibilidad del producto.. Al mismo tiempo, También puede matar bacterias dañinas en las materias primas., garantizar la seguridad de los alimentos para mascotas.
2.1 Características de las materias primas de alimentos para mascotas y requisitos para equipos de extrusión
Las materias primas de los alimentos para mascotas son principalmente productos cárnicos. (como harina de carne, harina de pescado, carne fresca), cereal, harina de soja, vitaminas, minerales y otros aditivos. entre ellos, Los productos cárnicos representan una gran proporción., haciendo que el producto tenga una fuerte viscosidad. Esta característica plantea requisitos especiales para los equipos de extrusión.:
Las extrusoras de un solo husillo no son adecuadas para la producción económica de alimentos para mascotas.. Debido a que la extrusora de un solo tornillo tiene un rango de corte estrecho, Poca capacidad de bombeo y sin efecto de autolimpieza.. Al procesar materiales viscosos como productos cárnicos, es fácil causar acumulación de material, Bloqueo y mezcla desigual en el cilindro del extrusor., lo que no sólo afecta la eficiencia de la producción, pero también conduce a una calidad inestable del producto. Además, la extrusora de un solo husillo tiene un alto consumo de energía al procesar materias primas ricas en grasas y proteínas, lo que aumenta el costo de producción de las empresas.
Extrusoras de doble tornillo, por otro lado, Tienen ventajas obvias en la producción de alimentos para mascotas.. Tienen un rango de corte más amplio., efecto de bombeo más eficaz y efecto de autolimpieza, que puede resolver eficazmente los problemas de viscosidad y acumulación del material. La extrusora de doble tornillo puede realizar una mezcla uniforme, amasado y extrusión de materiales, incluso al procesar materias primas con alto contenido de grasa y carne fresca, También puede garantizar una producción estable y una calidad constante del producto.. Por lo tanto, en la producción real de alimentos para mascotas, twin-screw extruders have become the main means of pet food puffing, and are widely used in the production of dry puffed products, productos semihúmedos, soft puffed products and pet snacks.
2.2 Working Principle of Screw Extrusion Puffing
The screw extrusion puffing process of pet food is a complex physical and chemical process, which involves the interaction of multiple factors such as temperature, presión, shear force and time. The specific working principle is as follows:
Primero, raw material pretreatment. The powdery raw materials containing a certain amount of starch (more than 20%) are mixed uniformly according to the formula, and then sent to the tempering device for tempering treatment. The purpose of tempering is to adjust the moisture content and temperature of the materials, so that the materials can reach the ideal state before entering the extruder. Generally, the moisture content of the materials after tempering is controlled at 10%～27%, and the temperature is raised to 70～98℃. During the tempering process, the materials absorb water evenly, which is conducive to the subsequent gelatinization of starch and denaturation of protein, and can also reduce the wear of the extruder screw and barrel.
Segundo, extrusion and heating. The tempered materials enter the screw extrusion cavity through the feeding device. The screw extrusion cavity is composed of a screw and a barrel, and the volume of the extrusion cavity gradually decreases along the axis direction. When the screw rotates, it pushes the materials forward continuously, Y los materiales se comprimen gradualmente bajo la acción del tornillo y el cilindro., y la presión en la cavidad de extrusión aumenta gradualmente. La relación de compresión (la relación entre el volumen del material en el extremo de alimentación y el volumen en el extremo de extrusión) puede llegar a 4～10, que varía según el tipo de alimento para mascotas y la fórmula de las materias primas.
Durante el proceso de ser empujado y extruido por el tornillo, Los materiales están sujetos a fuertes fuerzas de corte y de fricción.. La fuerza cortante se genera por el movimiento relativo entre el tornillo y el cilindro., así como entre los tramos de tornillo. Puede romper las partículas de los materiales., hacer que las materias primas y los aditivos se mezclen más uniformemente, y promover la gelatinización del almidón y la desnaturalización de las proteínas.. La fuerza de fricción se genera entre los materiales y la pared interior del barril., así como entre las partículas del material, que puede generar mucho calor, que favorece el calentamiento de los materiales.. Además, según las necesidades de procesamiento, El vapor puede fluir a través de la camisa del barril para calentar los materiales entre las paredes., para que los materiales en la cavidad de extrusión estén en un estado de alta temperatura y alta presión. La temperatura en la cavidad de extrusión generalmente se controla entre 120 y 180 ℃., y la presión se controla a 2 ~ 10 MPa.
Tercero, Gelatinación del almidón y desnaturalización de proteínas.. Bajo la acción de altas temperaturas., alta presión y fuerza de corte, El almidón de los materiales absorbe agua y se expande., la estructura cristalina se destruye, y se convierte en un estado amorfo, que se llama gelatinización del almidón. La gelatinización del almidón puede mejorar la digestibilidad de los alimentos para mascotas, porque el almidón gelatinizado es más fácil de descomponer por las enzimas digestivas de las mascotas. Al mismo tiempo, El almidón gelatinizado también puede mejorar la viscosidad y la fuerza de unión de los materiales., Hacer que los productos extruidos tengan buena forma y textura..
Además de la gelatinización del almidón., La proteína de los materiales también se desnaturalizará bajo la acción de altas temperaturas y altas presiones.. La desnaturalización de proteínas se refiere al cambio de la estructura espacial de las moléculas de proteínas sin cambiar la estructura primaria., que puede mejorar la solubilidad y digestibilidad de las proteínas., y hacer que la comida para mascotas tenga mejor palatabilidad. Al mismo tiempo, La proteína desnaturalizada también puede formar una estructura de red., which can wrap the starch and other components, helping to maintain the shape of the puffed product.
Cuatro, puffing and shaping. When the materials in the high-temperature and high-pressure state are pushed to the die head by the screw and extruded from the die hole at a high speed, the temperature and pressure of the materials drop sharply because they suddenly leave the extrusion cavity and enter the normal atmospheric environment. Under the combined action of pressure difference and temperature difference, the water in the materials evaporates rapidly, the volume of the materials expands rapidly (the expansion rate can reach 2～8 times), and the materials are dehydrated and solidified quickly to form a porous, crisp or soft puffed product.
After extrusion from the die hole, Los materiales inflados se cortan en partículas cortas de longitud uniforme mediante el dispositivo de corte. (cuchillo giratorio) instalado en el cabezal del troquel. La longitud de las partículas se puede ajustar cambiando la velocidad del cuchillo giratorio para cumplir con los requisitos de los diferentes tipos de alimentos para mascotas.. Por ejemplo, las partículas de comida para cachorros son más pequeñas y más cortas, mientras que las partículas de la comida para perros adultos son más grandes y más largas.
Quinto, posprocesamiento. Las partículas infladas extruidas deben pasar por enlaces de posprocesamiento, como el secado., enfriamiento, condimentos y envases para convertirse en los productos finales de alimento para mascotas. El secado consiste en reducir el contenido de agua de las partículas al rango estándar. (10%-12% para productos secos), para prolongar la vida útil del producto.. El enfriamiento consiste en reducir la temperatura de las partículas secas a temperatura ambiente., prevent the product from caking and deteriorating. Seasoning is to spray flavoring agents, attractants and other additives on the surface of the particles to improve the palatability of the product. Packaging is to pack the seasoned particles into bags or cans to ensure the hygiene and safety of the product and facilitate storage and transportation.
2.3 Key Factors Affecting Screw Extrusion Puffing Effect
The effect of screw extrusion puffing directly affects the quality of pet food. There are many factors affecting the puffing effect, mainly including raw material characteristics, tempering parameters, extrusion parameters and die head structure. Mastering these key factors and making scientific adjustments can ensure the stability of the puffing effect and the consistency of product quality.
2.3.1 Raw Material Characteristics:
The type, particle size, moisture content and nutritional composition of raw materials have a great impact on the puffing effect. Por ejemplo, the starch content of raw materials directly affects the expansion rate of the product. The higher the starch content (within a certain range), the better the puffing effect, and the larger the expansion rate of the product. The particle size of raw materials should be uniform, generally 80-100 mesh. If the particle size is too large, the materials are not easy to be mixed uniformly and plasticized fully, which affects the puffing effect; if the particle size is too small, it is easy to cause material blockage and increase energy consumption. The moisture content of raw materials before tempering should be controlled at 8%-12%. If the moisture content is too high, the materials are easy to stick to the screw and barrel, affecting the extrusion and puffing; if the moisture content is too low, the shear force and friction force between the materials are insufficient, and the starch gelatinization is incomplete, resulting in poor puffing effect.
2.3.2 Tempering Parameters:
Tempering parameters mainly include tempering temperature, tempering time and moisture content after tempering. The tempering temperature is generally 70～98℃. If the tempering temperature is too low, the materials cannot absorb water evenly, and the starch gelatinization is insufficient; if the tempering temperature is too high, the materials may be caked in advance, affecting the subsequent extrusion. The tempering time is generally 2-5 minutos, which should be adjusted according to the type of raw materials and the moisture content. The moisture content after tempering is 10%～27%, which varies according to the type of pet food. Por ejemplo, the moisture content of dry puffed products after tempering is generally 15%-20%, while that of semi-wet products is 22%-27%.
2.3.3 Extrusion Parameters:
Extrusion parameters are the most important factors affecting the puffing effect, mainly including screw speed, extrusion temperature and extrusion pressure. Screw speed generally ranges from 100 a 600 rpm. The higher the screw speed, the greater the shear force and friction force received by the materials, the higher the extrusion temperature and pressure, and the better the puffing effect. Sin embargo, if the screw speed is too high, the residence time of the materials in the extrusion cavity is too short, resulting in incomplete starch gelatinization and uneven mixing; if the screw speed is too low, the shear force and friction force are insufficient, and the puffing effect is poor.
Extrusion temperature is generally controlled at 120～180℃, which is divided into three sections: feeding section, melting section and homogenizing section. The temperature of the feeding section is lower (70～90℃), which is mainly to prevent the materials from caking and ensure the smooth feeding; the temperature of the melting section is medium (120～150℃), which is mainly to promote the melting and plasticization of the materials; the temperature of the homogenizing section is higher (150～180℃), which is mainly to ensure the uniform mixing and full gelatinization of the materials.
Extrusion pressure is generally 2～10MPa. The pressure in the extrusion cavity is mainly determined by the compression ratio of the screw, the die hole size and the screw speed. The higher the extrusion pressure, the better the puffing effect, but if the pressure is too high, it will increase the energy consumption and wear of the equipment; if the pressure is too low, the puffing effect is poor, and the product is loose and easy to break.
2.3.4 Die Head Structure:
The die head structure mainly includes the number, shape and size of die holes. The shape of the die hole determines the cross-sectional shape of the puffed product, such as circular, square, triangular and other shapes. The size of the die hole determines the initial diameter of the product. The smaller the die hole size, the greater the extrusion pressure, and the better the puffing effect, but the production capacity will be reduced. The number of die holes affects the production capacity. The more the number of die holes, the higher the production capacity, but it is necessary to ensure that the pressure distribution is uniform, so as to avoid uneven puffing of the product.
3. Our Extruders: Advantages and Product Series for Pet Food Production
We have long been engaged in the research, development and production of food-grade extruders, and have developed a series of twin-screw extruders specially suitable for pet food production according to the characteristics of pet food processing and the needs of enterprises. Our extruders have the advantages of low operating cost, wide application range, advanced technology and reliable process control, which can meet the processing needs of various types of pet food and help enterprises improve production efficiency and product quality.
3.1 Main Advantages of Our Extruders
3.1.1 Low Lifetime Operating Cost:
We focus on the durability and economy of the equipment, and adopt high-quality materials and advanced manufacturing technology to ensure that the extruder has a long service life and low operating cost. The inner wall of the barrel is made of high-quality wear-resistant alloy steel, which has extremely strong wear resistance and can effectively resist the wear caused by the friction between the materials (especially the materials containing hard particles such as bone meal) and the barrel. This greatly extends the service life of the barrel, reducing the frequency of barrel replacement and the maintenance cost of the equipment.
Además, we also provide professional barrel wear measurement services. Our technical team will regularly or irregularly detect the wear of the barrel for customers, accurately judge the wear degree of the barrel, and provide professional suggestions on barrel replacement. This ensures that customers only replace the barrel when it is really needed, avoiding unnecessary waste and reducing the operating cost of the equipment. Al mismo tiempo, the screw of our extruder is also made of wear-resistant alloy steel, which has good corrosion resistance and wear resistance, and can adapt to the processing of high-fat, high-protein and high-salt raw materials.
3.1.2 Wide Application Range:
Our twin-screw extruders have strong adaptability and can meet the processing needs of various types of pet food, including dry puffed products, productos semihúmedos, productos suaves e inflados, pet snacks and other products. The extruder is equipped with a high-torque drive system, variable screw speed and pressure variable control device, which provides excellent flexibility for customers, and can be adjusted according to different process requirements and raw material formulas to achieve the best processing effect.
The modular design of the extruder is another major feature that expands its application range. The screw, barril, die head and other components of the extruder adopt a modular design, which can be freely combined and replaced according to the customer’s specific application needs. Por ejemplo, when processing dry puffed products, customers can choose a screw with a high compression ratio and a die head with small die holes; when processing semi-wet products, they can choose a screw with a medium compression ratio and a die head with large die holes. This modular design not only improves the flexibility and adaptability of the equipment, but also reduces the cost of equipment transformation when customers adjust their product types.
3.1.3 Advanced Technology and Reliable Process Control:
Our extruders adopt the most advanced intelligent control technology, which can realize the precise control of the entire processing process, ensuring the consistency of the final product quality. The extruder is equipped with an intelligent formula memory system, which can store multiple sets of product formulas and processing parameters. When customers produce different products, they only need to call the corresponding formula and parameters, without repeated debugging, which not only saves time and improves production efficiency, but also maximizes the reduction of process errors and operator errors.
The intelligent control system also has real-time monitoring and alarm functions. It can monitor key parameters such as extrusion temperature, extrusion pressure, velocidad del tornillo, material moisture content and production capacity in real time. If any parameter exceeds the set range, the system will issue an alarm prompt in time, and even automatically shut down the equipment if necessary, to avoid equipment failure and product quality problems. Además, the control system adopts a touch screen operation interface, which is simple and intuitive, easy to operate, and can reduce the professional requirements for operators.
3.1.4 Good Product Quality Stability:
Due to the advanced intelligent control system, uniform mixing and full plasticization of materials, the products processed by our extruders have stable quality. The particle size, forma, dureza, crispness and nutritional composition of the products are uniform, which can meet the strict quality requirements of pet food. Al mismo tiempo, the extrusion puffing process can effectively kill harmful bacteria in the raw materials (such as Salmonella, Escherichia coli), with a sterilization rate of more than 99%, ensuring the safety of pet food and reducing the risk of pet food safety incidents.
3.1.5 High Production Efficiency:
Our twin-screw extruders have high production efficiency, which is much higher than that of single-screw extruders. The production capacity of our extruders ranges from 100kg/h to 2000kg/h, which can meet the production needs of different scales of enterprises (small, medium and large). The high-torque drive system and optimized screw design of the extruder can effectively improve the conveying capacity and plasticization efficiency of materials, reducing the residence time of materials in the extrusion cavity and improving production efficiency. Además, the self-cleaning function of the twin-screw extruder can reduce the time of equipment cleaning and maintenance, further improving production efficiency.
3.2 HTS BASIC Series Extruders: A Cost-Effective Choice for Pet Food Enterprises
The HTS BASIC series extruders are a cost-effective product series independently developed by us, which are specially designed for pet food processing enterprises with medium and small production scales or initial entry into the industry. This series of extruders uses medium-torque gearboxes from leading European manufacturers, which have the advantages of stable performance, low noise, high efficiency and long service life. The medium-torque design can meet the processing needs of most pet food (such as dry puffed dog food, cat food, pet snacks), and at the same time, it has a reasonable price, which can help enterprises reduce the initial investment cost.
In terms of structural design, the HTS BASIC series extruders adopt a twin-screw parallel structure, with a screw diameter ranging from 30mm to 65mm, and a compression ratio of 4～8, which can be adjusted according to the type of pet food. The barrel is made of wear-resistant alloy steel, con elemento calefactor incorporado y sistema de refrigeración, which can accurately control the temperature of each section of the barrel. The screw is made of wear-resistant and corrosion-resistant alloy steel,经过 mecanizado de precisión y tratamiento térmico, which has good wear resistance and corrosion resistance.
En términos de parámetros de rendimiento., the HTS BASIC series extruders have a screw speed range of 150～500 rpm, which can be steplessly adjusted. The extrusion temperature can be controlled at 120～170℃, and the extrusion pressure can be controlled at 2～8MPa. The production capacity of this series of extruders ranges from 100kg/h to 500kg/h, which is suitable for medium and small-sized pet food processing enterprises. The extruder is equipped with a PLC control system and a touch screen operation interface, which is simple and easy to operate. It can realize the automatic control of the production process, such as automatic feeding, automatic temperature control, automatic pressure control and automatic cutting.
One of the biggest advantages of the HTS BASIC series extruders is that they can provide flexible options through different configuration combinations. Customers can choose different screw types, morir cabezas, dispositivos de alimentación, tempering devices and post-processing equipment according to their own product types, production capacity and budget, so as to form a production line suitable for their own needs. Por ejemplo, if a customer mainly produces dry puffed dog food, they can choose a screw with a high compression ratio, a circular die head, a high-efficiency tempering device and a drying cooling line; if a customer mainly produces pet snacks, they can choose a screw with a medium compression ratio, a special-shaped die head and a seasoning line.
Además, the HTS BASIC series extruders have the advantages of easy maintenance and low maintenance cost. The modular design of the equipment makes the replacement of components (such as screw, barril, morir cabeza) more convenient and quick. Our after-sales service team will provide professional installation, commissioning and training services for customers, ensuring that customers can use the equipment smoothly. Al mismo tiempo, we also provide a complete range of spare parts supply services, which can quickly provide customers with the required spare parts, reducing the downtime of the equipment.
3.3 Selection Suggestions for Pet Food Extruders
When selecting extruders for pet food production, enterprises need to comprehensively consider their own production needs, product types, budget and other factors to ensure that the selected equipment can meet the actual production needs and bring maximum economic benefits. The following are some specific selection suggestions:
3.3.1 Determine the Type of Extruder According to Product Types:
Different types of pet food have different requirements for extruders. Por ejemplo, dry puffed products require extruders with high compression ratio, high extrusion temperature and pressure; semi-wet products require extruders with medium compression ratio and moderate extrusion temperature and pressure; pet snacks require extruders with good flexibility and adjustability. Enterprises should select the appropriate extruder type (twin-screw extruder is preferred) and configuration according to the main product types they produce.
3.3.2 Determine the Production Capacity of the Extruder According to the Production Scale:
Enterprises should select the extruder with appropriate production capacity according to their own production scale and market demand. If the production scale is small (daily output less than 1 ton), the HTS BASIC series extruders with production capacity of 100-300kg/h are suitable; if the production scale is medium (daily output 1-5 montones), the HTS BASIC series extruders with production capacity of 300-500kg/h are suitable; if the production scale is large (daily output more than 5 montones), it is recommended to choose our high-torque large-scale twin-screw extruders (production capacity more than 500kg/h).
3.3.3 Consider the Cost-Effectiveness of the Equipment:
The cost-effectiveness of the equipment is an important factor that enterprises need to consider. Enterprises should not only pay attention to the initial investment cost of the equipment, but also consider the long-term operating cost (such as energy consumption, maintenance cost, spare parts cost). Our HTS BASIC series extruders have the advantages of reasonable price, low energy consumption and low maintenance cost, which are cost-effective choices for medium and small-sized enterprises.
3.3.4 Pay Attention to the After-Sales Service of the Equipment:
The after-sales service of the equipment is crucial for the normal operation of the production line. Enterprises should select manufacturers with perfect after-sales service systems, which can provide professional installation, puesta en servicio, capacitación, maintenance and spare parts supply services. We have a professional after-sales service team, which can respond to customer needs in a timely manner and solve various problems encountered by customers in the use of equipment, ensuring the normal operation of the production line.
3.3.5 Consider the Flexibility and Expandability of the Equipment:
With the changes of market demand, enterprises may need to adjust their product types and production scales. Por lo tanto, when selecting extruders, enterprises should consider the flexibility and expandability of the equipment. Our extruders adopt a modular design, which can be freely combined and upgraded according to the needs of enterprises, improving the flexibility and expandability of the equipment, and reducing the cost of equipment transformation.
4. Application of Extrusion Equipment in Pet Food Production
Our twin-screw extruders (including HTS BASIC series) have been widely used in the production of various types of pet food, and have achieved good application effects. The following will introduce the specific application of our extrusion equipment in different types of pet food production, including process flow, equipment configuration and key technical points.
4.1 Application in Dry Puffed Pet Food Production
Dry puffed pet food is the most widely used product type in the pet food industry, and our HTS BASIC series extruders are especially suitable for its production. The process flow of dry puffed pet food production using our extruders is as follows:
Raw material preparation → mixing → tempering → extrusion puffing → cutting → drying → cooling → seasoning → packaging.
4.1.1 Preparación de Materia Prima:
The raw materials of dry puffed pet food mainly include meat meal (chicken meal, beef meal, harina de pescado), cereal (corn flour, wheat flour, rice flour), harina de soja, vitaminas, minerals, attractants and other additives. All raw materials need to be inspected and cleaned to remove impurities (such as stones, metals) and ensure the quality of raw materials. The raw materials are then crushed into powder with a particle size of 80-100 mesh, which is conducive to uniform mixing and full plasticization.
4.1.2 Mezclando:
The crushed raw materials are sent to the mixer according to the formula ratio for uniform mixing. The mixing time is generally 5-10 minutos, ensuring that all raw materials and additives are evenly distributed. The mixer is equipped with a weighing device, which can accurately control the dosage of each raw material, ensuring the stability of the product formula.
4.1.3 Tempering:
The mixed raw materials are sent to the tempering device for tempering treatment. The tempering temperature is controlled at 80-95℃, the tempering time is 3-5 minutos, and the moisture content after tempering is 15%-20%. During the tempering process, steam is injected into the tempering device to make the raw materials absorb water evenly, which is conducive to the subsequent extrusion puffing.
4.1.4 Extrusion Puffing:
The tempered raw materials are sent to the HTS BASIC series twin-screw extruder for extrusion puffing. The screw speed is controlled at 200-400 rpm, the extrusion temperature of the feeding section is 70-90℃, the melting section is 130-150℃, and the homogenizing section is 160-170℃. The extrusion pressure is controlled at 5-8MPa, and the compression ratio is 6-8. Bajo la acción de altas temperaturas., alta presión y fuerza de corte, the starch in the raw materials is fully gelatinized, the protein is denatured, and the materials are extruded from the die head to form puffed strips.
4.1.5 Corte:
The puffed strips extruded from the die head are cut into short particles of uniform length by the rotary knife installed at the die head. The length of the particles is generally 3-8mm, which can be adjusted by changing the speed of the rotary knife.
4.1.6 Drying:
The cut puffed particles are sent to the drying equipment for drying. The drying temperature is controlled at 80-100℃, and the drying time is 20-30 minutos. The purpose of drying is to reduce the water content of the particles to 10%-12%, para prolongar la vida útil del producto.. The drying equipment can adopt belt dryer or fluidized bed dryer, which has the advantages of uniform drying and high efficiency.
4.1.7 Enfriamiento:
The dried particles are sent to the cooling equipment for cooling. The cooling temperature is controlled at room temperature (20-25℃), and the cooling time is 10-15 minutos. Cooling can prevent the particles from caking and deteriorating, and ensure the crispness of the product.
4.1.8 Seasoning:
The cooled particles are sent to the seasoning equipment for seasoning. The seasoning can be spray seasoning or mixing seasoning. Common seasonings include chicken flavor, beef flavor, fish flavor and other attractants, as well as vegetable oil, salt and other additives. The seasoning amount is generally 2%-5% of the particle weight, which can be adjusted according to the taste needs of pets.
4.1.9 Embalaje:
The seasoned particles are sent to the packaging equipment for packaging. The packaging equipment can adopt automatic packaging machine, which can realize automatic weighing, bagging, sealing and labeling. The packaging specifications can be adjusted according to customer needs, such as 1kg/bag, 5kg/bag, 10kg/bag, etc.. After packaging, the products are stored in a dry, cool and ventilated warehouse.
Key technical points: The key to dry puffed pet food production is to control the extrusion parameters and drying parameters. The extrusion parameters (velocidad del tornillo, temperatura, presión) directly affect the puffing effect and product texture; the drying parameters (temperatura, time) directly affect the water content and shelf life of the product. Our HTS BASIC series extruders have precise parameter control functions, which can ensure the stability of the extrusion process and the consistency of product quality.
4.2 Application in Pet Snack Production
Los snacks para mascotas tienen altos requisitos de sabor, apariencia y funcionalidad, and our HTS BASIC series extruders, with their flexible configuration and precise parameter control, can well meet the processing needs of various pet snacks. Taking puffed dental snacks as an example, the process flow of production using our extruders is as follows:
Raw material preparation → mixing → tempering → extrusion puffing → cutting → drying → cooling → surface treatment → packaging.
4.2.1 Preparación de Materia Prima:
The raw materials of puffed dental snacks mainly include corn flour, wheat flour, potato starch, meat meal, vegetable fiber, calcium carbonate and other additives. entre ellos, vegetable fiber and calcium carbonate are added to improve the hardness and texture of the product, helping to clean the pet’s teeth. The raw materials are crushed into powder with a particle size of 100-120 mesh, which is conducive to the formation of the product and the improvement of the texture.
4.2.2 Mezclando:
The crushed raw materials are mixed uniformly in the mixer according to the formula ratio. The mixing time is 8-12 minutos, ensuring that the vegetable fiber, calcium carbonate and other additives are evenly distributed in the raw materials.
4.2.3 Tempering:
The mixed raw materials are sent to the tempering device for tempering treatment. The tempering temperature is controlled at 75-90℃, the tempering time is 2-4 minutos, and the moisture content after tempering is 18%-22%. The tempering process should ensure that the raw materials absorb water evenly, but not too much, so as to avoid the product being too soft.
4.2.4 Extrusion Puffing:
The tempered raw materials are sent to the HTS BASIC series twin-screw extruder for extrusion puffing. The screw speed is controlled at 250-450 rpm, the extrusion temperature of the feeding section is 70-85℃, the melting section is 120-140℃, and the homogenizing section is 150-160℃. The extrusion pressure is controlled at 4-7MPa, and the compression ratio is 5-7. The die head adopts a special-shaped die hole (such as cylindrical, spiral, striped), so that the extruded product has a special shape and texture, which is conducive to cleaning the pet’s teeth.
4.2.5 Corte:
The extruded puffed products are cut into appropriate lengths by the rotary knife. The length of the products is generally 5-10mm, which can be adjusted according to the size of the pet.
4.2.6 Drying:
The cut products are sent to the drying equipment for drying. The drying temperature is controlled at 75-95℃, and the drying time is 15-25 minutos. The water content of the dried products is controlled at 12%-14%, which ensures that the product has a certain hardness and crispness, and can effectively clean the pet’s teeth.
4.2.7 Enfriamiento:
The dried products are cooled to room temperature in the cooling equipment, which takes 8-12 minutos.
4.2.8 Surface Treatment:
The cooled products are subjected to surface treatment to improve the palatability and appearance of the product. Common surface treatments include spraying meat sauce, coating cheese powder, and dipping in edible oil. The surface treatment amount is generally 3%-6% of the product weight.
4.2.9 Embalaje:
The products after surface treatment are packaged by automatic packaging machine. The packaging should be sealed and moisture-proof to ensure the freshness and shelf life of the product.
Key technical points: The key to pet snack production is the design of the formula and the adjustment of extrusion parameters. The formula should meet the taste and functional needs of pets; the extrusion parameters should be adjusted according to the shape and texture requirements of the product, ensuring that the product has a good shape and texture. Our HTS BASIC series extruders have flexible parameter adjustment functions, which can meet the processing needs of different types of pet snacks.
4.3 Application in Semi-Wet Pet Food Production
Semi-wet pet food has a soft taste and good palatability, que es adecuado para mascotas con poca capacidad de masticación. Our HTS BASIC series extruders can also be used for the production of semi-wet pet food by adjusting the configuration and parameters. The process flow is as follows:
Raw material preparation → mixing → tempering → extrusion puffing → cutting → cooling → packaging.
4.3.1 Preparación de Materia Prima:
The raw materials of semi-wet pet food mainly include meat meal, harina de pescado, cereal, harina de soja, humectants (propylene glycol, sorbitol), preservatives, vitamins and minerals. The humectants are added to maintain the moisture of the product, and the preservatives are added to extend the shelf life of the product. The raw materials are crushed into powder with a particle size of 80-100 mesh.
4.3.2 Mezclando:
The raw materials are mixed uniformly in the mixer according to the formula ratio. The mixing time is 6-10 minutos, ensuring that the humectants and preservatives are evenly distributed.
4.3.3 Tempering:
The mixed raw materials are sent to the tempering device for tempering treatment. The tempering temperature is controlled at 85-98℃, the tempering time is 3-5 minutos, and the moisture content after tempering is 22%-27%. The tempering process should ensure that the raw materials absorb water fully, so that the product has a soft taste.
4.3.4 Extrusion Puffing:
The tempered raw materials are sent to the HTS BASIC series twin-screw extruder for extrusion puffing. The screw speed is controlled at 150-300 rpm, the extrusion temperature of the feeding section is 75-90℃, the melting section is 120-140℃, and the homogenizing section is 140-150℃. The extrusion pressure is controlled at 2-5MPa, and the compression ratio is 4-6. The extrusion temperature and pressure are lower than those of dry puffed products, so as to avoid excessive puffing of the product and ensure that the product is soft.
4.3.5 Corte:
The extruded products are cut into short particles by the rotary knife, with a length of 4-8mm.
4.3.6 Enfriamiento:
The cut products are cooled to room temperature in the cooling equipment, which takes 10-15 minutos. Cooling can prevent the product from deteriorating due to high temperature.
4.3.7 Embalaje:
The cooled products are packaged by vacuum packaging machine. Vacuum packaging can effectively prevent the product from being oxidized and moldy, extending the shelf life of the product. The packaging specifications can be adjusted according to customer needs.
Key technical points: The key to semi-wet pet food production is the control of moisture content and the selection of humectants and preservatives. The moisture content of the product should be controlled at 25%-35%, and the humectants and preservatives should be selected according to the national food safety standards to ensure the safety of the product. Our HTS BASIC series extruders can accurately control the extrusion temperature and pressure, ensuring that the product has a stable moisture content and soft taste.
5. Solutions to Common Problems in Pet Food Extrusion Processing
In the actual production of pet food extrusion processing, enterprises often encounter various problems, such as uneven product particle size, poor puffing effect, product stickiness, product deterioration and other problems, which affect production efficiency and product quality. Based on our rich experience in pet food processing, we summarize the common problems, causes and solutions, hoping to help enterprises solve practical problems in production.
5.1 Uneven Product Particle Size
5.1.1 Causes:
The main causes of uneven product particle size are: uneven speed of the rotary knife; uneven die hole size; uneven feeding speed; unstable screw speed; uneven mixing of raw materials.
5.1.2 Soluciones:
Check and adjust the rotary knife, ensure that the rotary knife speed is uniform and the cutting edge is sharp; check the die head, replace the die head with uneven die hole size; adjust the feeding device, ensure that the feeding speed is uniform; check the screw drive system, ensure that the screw speed is stable; extend the mixing time, ensure that the raw materials are mixed uniformly.
5.2 Poor Puffing Effect
5.2.1 Causes:
The main causes of poor puffing effect are: insufficient starch content of raw materials; too low or too high moisture content after tempering; too low extrusion temperature and pressure; too low screw speed; too large die hole size.
5.2.2 Soluciones:
Adjust the product formula, increase the starch content of raw materials (to more than 20%); adjust the tempering parameters, control the moisture content after tempering at 10%～27%; increase the extrusion temperature and pressure, adjust the temperature of each section of the barrel and the screw speed; reduce the die hole size; check the screw wear, replace the worn screw.
5.3 Product Stickiness
5.3.1 Causes:
The main causes of product stickiness are: contenido de humedad demasiado alto del producto; temperatura de extrusión demasiado alta; Contenido demasiado alto de proteínas en las materias primas.; secado insuficiente del producto.
5.3.2 Soluciones:
Reducir el contenido de humedad del producto ajustando los parámetros de templado y secado.; Reducir la temperatura de extrusión de la sección de homogeneización.; ajustar la fórmula del producto, Reducir adecuadamente el contenido de proteínas de las materias primas.; extender el tiempo de secado, Asegúrese de que el contenido de agua del producto cumpla con el estándar..
5.4 Deterioro del producto
5.4.1 Causes:
Las principales causas del deterioro del producto son: Esterilización insuficiente durante el proceso de extrusión.; contenido de agua demasiado alto del producto; mal embalaje; almacenamiento inadecuado.
5.4.2 Soluciones:
Aumentar la temperatura y presión de extrusión., Asegúrese de que la tasa de esterilización alcance más de 99%; control the water content of the product within the standard range; adopt vacuum packaging or nitrogen-filled packaging to improve the packaging effect; store the product in a dry, cool and ventilated warehouse, avoid high temperature and humidity.
5.5 Equipment Blockage
5.5.1 Causes:
The main causes of equipment blockage are: too high moisture content of raw materials; too large particle size of raw materials; impurities in raw materials; too low screw speed; wear of screw and barrel.
5.5.2 Soluciones:
Reduce the moisture content of raw materials; crush the raw materials to the required particle size; clean the raw materials to remove impurities; increase the screw speed; check the wear of screw and barrel, replace the worn components.
6. Our Service System: Supporting You to Achieve High-Quality Production
We not only provide high-quality extruders for pet food production, but also provide a complete set of service systems, from pre-sales consulting, equipment selection, formula design, to in-sales installation, puesta en servicio, capacitación, and after-sales maintenance, orientación técnica, to provide one-stop services for customers, helping customers solve various problems in production and achieve high-quality and efficient production.
6.1 Pre-Sales Service
Our pre-sales service team is composed of professional technical personnel with rich experience in pet food processing. We will conduct in-depth communication with customers to understand their product types, capacidad de producción, budget and other needs, and provide professional consulting services for customers. We will recommend the most suitable extruder model and configuration for customers, design personalized production line solutions, and provide detailed equipment parameters, process flow and cost budget, helping customers make scientific decisions.
Además, we also provide formula design services. Our technical team will design the most suitable product formula for customers according to the taste, nutrition and functional requirements of pet food, combining the processing characteristics of our extrusion equipment, helping customers improve the competitiveness of their products in the market. We can also provide raw material selection suggestions according to customers’ cost control needs, balancing product quality and production cost.
6.2 In-Sales Service
After the customer places an order, we will arrange professional technicians to provide on-site installation and commissioning services for the equipment. The installation and commissioning process will strictly follow the equipment installation specifications to ensure that the extruder and its matching auxiliary equipment (mixer, tempering device, dryer, seasoning machine, etc.) are accurately installed and connected. Technicians will debug all operating parameters of the equipment according to the customer’s product formula and production process requirements, and conduct trial production until the product quality meets the customer’s expected standards.
Al mismo tiempo, we provide on-site operational training for the customer’s production team, including equipment basic structure and working principle, daily operation steps, parameter adjustment skills, basic fault identification and handling. We will also provide a detailed operation manual and maintenance manual, and answer the questions raised by the operators one by one to ensure that the customer’s staff can proficiently operate and manage the equipment independently after the training.
6.3 After-Sales Service
We have a perfect after-sales service system with a professional after-sales team and multiple service outlets to provide timely and efficient after-sales support for customers nationwide and even globally. We promise a rapid response mechanism: for customer’s equipment problems, we will give a solution within 24 hours after receiving the feedback; for on-site maintenance needs, our after-sales technicians will arrive at the customer’s production site as soon as possible according to the actual situation.
We provide regular equipment maintenance and inspection services for customers, including regular detection of key components such as screw, barrel and gearbox, lubrication and maintenance of the transmission system, and calibration of the control system parameters. For the barrel wear measurement service we have launched, our technicians will regularly detect the wear degree of the barrel inner wall with professional instruments, issue a detailed wear report, and put forward targeted replacement and maintenance suggestions to ensure that customers only replace components when necessary and reduce unnecessary production costs.
Además, we provide a long-term supply of genuine spare parts, with a large number of common spare parts (such as screw elements, morir cabezas, cutting knives, sealing rings) in stock to ensure the rapid supply of spare parts and minimize the equipment downtime caused by component damage. We also provide technical upgrade services for the equipment, and can upgrade the control system, screw structure and other parts of the existing equipment according to the customer’s subsequent production expansion and product upgrade needs, so that the equipment can always adapt to the latest production requirements.
7. Complete Technical Parameters of Extruder Series for Pet Food Production
In order to meet the diverse production needs of pet food enterprises of different scales and product types, we have launched a full range of twin-screw extruder products for pet food processing, with the HTS BASIC series as the core, and extended HTS STANDARD and HTS PREMIUM series to adapt to small and medium-sized production, large-scale production and high-end customized production respectively. All series adopt the core design of twin-screw extrusion, with self-cleaning, high pumping efficiency and strong shear adaptability, and are perfectly matched with the characteristics of high viscosity and high fat of pet food raw materials. The following is the complete technical parameters table of each series:
Table 1: Technical Parameters of Excellence Pet Food Twin-Screw Extruder Series
表格
| Parameter Category | HTS BASIC Series (Entry/Mid-scale) | HTS STANDARD Series (A gran escala) | HTS PREMIUM Series (High-end Custom) |
|---|---|---|---|
| Screw Structure | Parallel twin-screw, co-rotativo | Parallel twin-screw, co-rotativo | Parallel twin-screw, co-rotativo |
| Screw Diameter (milímetros) | 30/45/65 | 80/95/110 | 65/80/95/110 (customizable) |
| Compression Ratio | 4:1 ~ 8:1 (adjustable) | 5:1 ~ 10:1 (adjustable) | 4:1 ~ 12:1 (customizable) |
| Screw Speed (rpm) | 150 ~ 500 (stepless frequency conversion) | 200 ~ 600 (stepless frequency conversion) | 100 ~ 700 (stepless frequency conversion) |
| Rated Torque (N·m) | 120 ~ 350 (European medium-torque gearbox) | 400 ~ 1200 (high-torque gearbox) | 350 ~ 1500 (imported high-precision gearbox) |
| Extrusion Temperature (℃) | 70 ~ 170 (3-section temperature control) | 70 ~ 180 (5-section precise temperature control) | 60 ~ 190 (6-section intelligent temperature control) |
| Extrusion Pressure (MPa) | 2 ~ 8 | 3 ~ 10 | 2 ~ 12 |
| Capacidad de producción (kg/hora) | 100 ~ 500 | 500 ~ 2000 | 200 ~ 2500 (customizable) |
| Barrel Material | Wear-resistant alloy steel (nitrided treatment, hardness ≥60 HRC) | Wear-resistant alloy steel (bimetallic composite, hardness ≥65 HRC) | Imported wear-resistant alloy steel (bimetallic composite + laser cladding, hardness ≥70 HRC) |
| Screw Material | Wear-resistant alloy steel (nitrided treatment) | Wear-resistant alloy steel (bimetallic composite) | Imported wear-resistant alloy steel (customized according to raw materials) |
| Control System | PLC + touch screen, basic formula memory (≤20 groups) | PLC + industrial touch screen, formula memory (≤50 groups) | Intelligent PLC + cloud touch screen, formula memory (unlimited, cloud storage) |
| Heating Method | Electric heating + jacket water cooling | Electric heating + steam heating + jacket water cooling | Electric heating/steam heating (switchable) + jacket precise water cooling |
| Feeding Method | Single/double screw feeding (optional) | Twin-screw differential feeding + liquid feeding port (for oil/fat) | Multi-channel precision feeding (solid/liquid/grease, independent metering) |
| Self-Cleaning Performance | Standard self-cleaning | Enhanced self-cleaning | High-efficiency self-cleaning (customized screw gap) |
| Power (kilovatios) | 15 ~ 45 | 55 ~ 160 | 37 ~ 200 (customizable) |
| Overall Dimension (L×W×H, metro) | 2.8×1.2×1.8 ~ 4.0×1.5×2.2 | 4.5×1.8×2.5 ~ 6.0×2.2×3.0 | 3.0×1.5×2.0 ~ 7.0×2.5×3.2 (customizable) |
| Peso (t) | 0.8 ~ 2.5 | 3.0 ~ 8.0 | 2.0 ~ 10.0 (customizable) |
| Core Advantages | High cost-effectiveness, easy operation, suitable for initial pet food enterprises | Alto rendimiento, low energy consumption, stable performance, suitable for large-scale mass production | High precision, strong customization, multi-functional, suitable for high-end pet food/snack customized production |
Key Parameter Explanation
Compression Ratio: The adjustable range is designed for different pet food types—low compression ratio (4:1~6:1) for semi-wet pet food, medium ratio (6:1~9:1) for dry puffed food, and high ratio (9:1~12:1) for high-density functional pet snacks.
Barrel & Screw Material: The gradient material selection is to adapt to different raw material abrasiveness—HTS BASIC for ordinary meat meal/cereal raw materials, HTS STANDARD/ PREMIUM for raw materials containing bone meal, calcium powder and other hard particles, effectively extending the service life of core components.
Feeding Method: The multi-channel feeding port of HTS PREMIUM series can realize the precise addition of liquid raw materials (such as fresh meat slurry, vegetable oil) and grease, which is suitable for the production of high-fat, high-protein high-end pet food.
Control System: The cloud storage function of HTS PREMIUM series can realize remote parameter adjustment and production data monitoring, which is convenient for enterprises to carry out intelligent production management.
8. Future Development of Pet Food Extrusion Technology and Our Layout
With the continuous upgrading of the global pet food industry, the pet food market is presenting new development trends such as high-endization, functionalization, naturalization and diversification, which puts forward higher and more stringent requirements for pet food extrusion processing technology and equipment.
8.1 Development Trends of Pet Food Extrusion Technology
Intelligent and Digital Processing: The integration of industrial Internet, artificial intelligence and extrusion equipment will become a mainstream trend. The extruder will realize real-time monitoring of the whole production process, automatic adjustment of parameters, and predictive maintenance of equipment through sensors and cloud computing, reducing human intervention and improving the stability and consistency of product quality.
Adaptation to Natural and High-quality Raw Materials: With the increasing demand for natural pet food, extrusion equipment needs to be optimized for processing fresh meat, fresh vegetables and other raw materials with high moisture and high activity, reducing the loss of nutritional components of raw materials in the extrusion process and retaining the original flavor and nutrition of raw materials.
High Efficiency and Energy Saving: Under the background of global energy conservation and emission reduction, pet food extrusion equipment will pay more attention to energy efficiency optimization, through the improvement of screw structure, heating method and transmission system, reducing unit energy consumption and improving production efficiency, realizing green production.
Customization and Diversification: The market demand for personalized pet food (such as pet food for different breeds, ages, physical conditions, and functional pet snacks) esta creciendo, which requires extrusion equipment to have stronger customization and flexibility, and can quickly switch production processes and parameters to meet the production of multiple varieties and small batches of products.
8.2 Our Technical Layout and Future Planning
Facing the development trend of the pet food industry, we adhere to the concept of technological innovation driven by market demand, and continue to increase R & D investment in pet food extrusion equipment, focusing on the following aspects of research and development and optimization:
Intelligent Upgrading of Equipment: We will integrate more high-precision sensors and intelligent control algorithms into our extruder series, realize the automatic matching of extrusion parameters and product formulas, and launch a cloud management platform for production data, so that customers can monitor production status, analyze production data and optimize process parameters remotely.
Optimization of Raw Material Adaptability: We will develop a special screw structure and tempering process for fresh meat, high-fiber and other natural raw materials, reduce the shear force and heating time of raw materials in the extrusion process, and add a low-temperature puffing function to the high-end series to maximize the retention of the nutritional components and flavor of raw materials.
Energy Saving and Emission Reduction Improvement: We will adopt more efficient transmission systems and heating methods, such as permanent magnet synchronous motors and heat recovery devices, to reduce the energy consumption of the equipment by 15% ~ 20% on the basis of the original; al mismo tiempo, optimize the equipment structure to reduce noise and waste discharge, meeting the environmental protection production standards.
Expansion of Customization Capabilities: We will build a more flexible product customization system, and can customize the screw diameter, compression ratio, feeding method and other parameters of the extruder according to the customer’s personalized production needs (such as special-shaped pet snacks, high-end functional pet food); al mismo tiempo, we will develop more matching auxiliary equipment to form a fully automated production line from raw material mixing to finished product packaging.
Deep Integration of Technology and Service: We will build a pet food processing technology research and development center, combining equipment R & D with product formula research, and provide customers with integrated solutions of “equipo + formula + proceso”; al mismo tiempo, we will expand the online technical service channel, provide 7×24-hour online technical guidance and fault diagnosis, and further improve the efficiency of after-sales service.
9. Conclusión
Pet food extrusion puffing technology is the core of modern pet food industrial production, and the performance of extrusion equipment directly determines the production efficiency, product quality and market competitiveness of pet food enterprises. As a professional provider of food-grade extrusion equipment, we have accumulated rich experience in the field of pet food processing, and launched a full range of twin-screw extruder products represented by the HTS series, which perfectly solve the processing difficulties caused by the high viscosity, high fat and diverse raw materials of pet food.
Our extruders have the advantages of low lifetime operating cost, wide application range, advanced technology and reliable process control, and are equipped with a complete one-stop service system from pre-sales to after-sales. The detailed and adjustable technical parameters of each series can meet the production needs of pet food enterprises of different scales and product types, from entry-level dry puffed food to high-end customized functional snacks.
En el futuro, with the continuous development of the pet food industry, we will continue to take technological innovation as the core, take customer demand as the guide, and constantly optimize and upgrade our extrusion equipment and service system, striving to provide more efficient, energy-saving, intelligent and customized pet food processing solutions for global customers. We are willing to grow together with pet food enterprises, and contribute to the development of the pet food industry with high-quality equipment and professional services, creating more safe, nutritious and delicious pet food for pet families around the world.