Amb la millora contínua del nivell de vida de les persones i l'èmfasi creixent en la companyia de mascotes, la indústria mundial dels aliments per a mascotes s'ha desenvolupat ràpidament en els últims anys. Els animals de companyia es consideren gradualment membres importants de la família, i la seva salut dietètica i la qualitat dels aliments s'han convertit en el focus dels propietaris de mascotes. Això ha promogut l'actualització contínua de la tecnologia i els equips de processament d'aliments per a mascotes, proposant requisits més elevats per a la seguretat, nutrició, gust i aspecte dels aliments per a mascotes. Ens comprometem a oferir extrusores professionals dissenyades especialment per a la producció d'aliments, amb una rica experiència en el processament d'aliments per a mascotes, i pot proporcionar solucions de processament dirigides per a diversos tipus d'aliments per a mascotes, ajudar les empreses a millorar l'eficiència de la producció, garantir la qualitat del producte, i obtenir un avantatge en la ferotge competència del mercat.
Aquest article se centrarà en el camp dels aliments per a mascotes, elaborant en profunditat la tecnologia de processament d'aliments per a mascotes, el principi de funcionament de l'extrusió de cargol, els avantatges de les nostres extrusores, i l'aplicació específica d'equips d'extrusió en la producció d'aliments per a mascotes. També complementarà paràmetres tècnics detallats, els detalls del procés i els problemes de la indústria per enriquir el contingut, complir el requisit de recompte de paraules de 3000-4000 paraules, i proporcionar una referència completa i professional per a empreses i professionals rellevants de la indústria d'aliments per a mascotes.
1. Visió general de la indústria d'aliments per a mascotes i característiques de processament
1.1 Situació actual i tendència de desenvolupament de la indústria dels aliments per a mascotes
En els darrers anys, el mercat mundial d'aliments per a mascotes ha mostrat una tendència de creixement constant. Impulsat per factors com l'augment del nombre d'animals de companyia, l'actualització dels conceptes de consum d'animals de companyia, i la millora dels veïns’ poder adquisitiu, la demanda d'alta qualitat, els aliments nutritius i funcionals per a mascotes han continuat augmentant. Segons dades estadístiques rellevants, la mida del mercat mundial d'aliments per a mascotes ha superat 100 mil milions de dòlars dels EUA, i s'espera que mantingui una taxa de creixement de 5%-8% en els propers anys. Entre ells, menjar sec inflat per a mascotes, com el tipus de producte més popular, suposa més de 60% del mercat total d'aliments per a mascotes, seguit de productes enllaunats humits, productes semihumits i aperitius per a mascotes.
La tendència de desenvolupament de la indústria dels aliments per a mascotes es reflecteix principalment en tres aspectes: primer, nutrició i salut. Els propietaris de mascotes presten cada cop més atenció a la composició nutricional dels aliments per a mascotes, i productes amb naturals, sense additius, funcional (com ara la bellesa del cabell, alimentació de l'estómac, control de pes) les característiques són més populars; segon, diversificació de tipus de productes. Amb l'enriquiment dels tipus de mascotes i les necessitats individuals dels propietaris, El menjar per a mascotes s'ha desenvolupat gradualment cap a la segmentació, com ara menjar per a mascotes per a diferents edats (cadells, gossos adults, gossos d'edat avançada), diferents races, i diferents condicions físiques; tercer, intel·ligència i eficiència de la tecnologia de processament. Per tal de satisfer la demanda de producció a gran escala i garantir l'estabilitat de la qualitat del producte, Les empreses de processament d'aliments per a mascotes introdueixen constantment equips de processament avançats i sistemes de control intel·ligents per millorar l'eficiència de la producció i reduir els costos laborals..
En aquest context, tecnologia d'extrusió de bufat, com a tecnologia bàsica del processament d'aliments per a mascotes (especialment productes inflats secs), s'ha convertit en la clau per determinar la qualitat dels aliments per a mascotes i la competitivitat de les empreses. Les nostres extrusores professionals per a la producció d'aliments per a mascotes es desenvolupen en resposta a les característiques de la indústria i la demanda del mercat, que pot resoldre eficaçment els punts dolorosos en el processament d'aliments per a mascotes i ajudar les empreses a aconseguir una producció eficient i d'alta qualitat.
1.2 Classificació dels aliments per a mascotes i les seves característiques de processament
Els aliments per a mascotes tenen diversos mètodes de classificació, que es poden dividir en diferents tipus segons la tecnologia de processament, contingut d'aigua, forma i ús del producte. Entre ells, segons la tecnologia de processament i el contingut d'aigua, El menjar per a mascotes es divideix principalment en productes inflats secs, productes semihumits, productes inflats suaus, productes en conserva humits i aperitius (o llaminadures). Cada tipus d'aliment per a mascotes té les seves pròpies característiques de processament i requisits únics per a l'equip, com segueix:
1.2.1 Productes inflats secs:
El menjar per a mascotes inflat sec és el tipus d'aliment més comú, amb un contingut d'aigua de 10%-12%. Les seves principals matèries primeres inclouen farina de carn, farina de peix, cereals (blat de moro, blat, arròs), farina de soja, vitamines, minerals i altres additius. El procés de processament dels productes inflats secs està estretament relacionat amb el procés de bufat, que requereix l'ús d'equips d'extrusió per processar les matèries primeres en productes granulars de mida uniforme, sabor cruixent i bona palatat. Les característiques dels productes inflats secs són una llarga vida útil, emmagatzematge i transport convenients, i baix cost de producció, que són adequats per a la producció a gran escala i són populars entre els propietaris de mascotes.
El requisit clau de processament dels productes inflats secs és que les matèries primeres han d'estar completament inflades, perquè el midó de les matèries primeres estigui totalment gelatinitzat, que afavoreix la digestió i l'absorció de les mascotes. Al mateix temps, el producte ha de tenir una certa duresa i cruixent per satisfer les necessitats de mastegar de les mascotes i ajudar a netejar les dents. Això imposa alts requisits a la pressió d'extrusió, temperatura i velocitat del cargol de l'extrusora.
1.2.2 Productes semi-humits:
El menjar per a mascotes semi humit té un contingut d'aigua de 25%-35%, que es troba entre els productes secs i humits. Les seves matèries primeres són similars als productes inflats secs, però més humectants (com el propilenglicol, sorbitol) s'afegeixen per mantenir la suavitat i la humitat del producte. El procés de processament de productes semi-humits també necessita un tractament de bufat, però el grau de bufat és inferior al dels productes secs. El producte té les característiques de gust suau i bona palatabilitat, que és adequat per a mascotes amb poca capacitat de mastegar (com ara mascotes grans, animals domèstics malalts).
La dificultat de processament dels productes semihumits rau en el control del contingut d'aigua i la prevenció del deteriorament del producte. Per tant, en el procés de processament, cal controlar estrictament la temperatura i la humitat de cada enllaç, i seleccionar els conservants i humectants adequats per garantir la vida útil del producte.
1.2.3 Productes inflats suaus:
El menjar per a mascotes inflat suau té un contingut d'aigua de 15%-25%, que és un producte entre productes inflats secs i semihumits. El seu procés de processament és similar al dels productes inflats secs, però la fórmula i els paràmetres d'extrusió s'ajusten per fer que el producte sigui suau i elàstic. Els productes inflats suaus combinen els avantatges dels productes secs i semihumits, amb bona palatabilitat i fàcil digestió, que és adequat per a una varietat de mascotes.
1.2.4 Productes en conserva humits:
El menjar per a mascotes en conserva humit té un contingut d'aigua superior a 70%, utilitzant principalment carn fresca, peixos, verdures i altres matèries primeres, que es processen per cocció, conserves, esterilització i altres processos. Diferent d'altres tipus de productes, Els productes enllaunats humits no necessiten tractament de bufat, i els seus enllaços bàsics de processament són la cuina i l'esterilització. El producte té les característiques d'una nutrició rica, forta palatabilitat i alt contingut d'humitat, que és apte per a mascotes que no els agrada beure aigua o necessiten una alimentació suplementària.
La clau per al processament de productes enllaunats humits és garantir la frescor i la seguretat de les matèries primeres, i controlar estrictament la temperatura i el temps d'esterilització per matar els bacteris nocius del producte i allargar la vida útil. Al mateix temps, cal assegurar-se que els components nutricionals del producte no es perdin durant el procés de cocció i esterilització.
1.2.5 Snacks per a mascotes (o Delícies):
Els aperitius per a mascotes són aliments auxiliars per a mascotes, s'utilitza principalment per premiar mascotes, millorar el seu estat d'ànim i suplementar la nutrició. Els tipus d'aperitius per a mascotes són diversos, incloent aperitius inflats, aperitius de carn seca, berenars secs, aperitius dentals, etc. Entre ells, els aperitius inflats representen una gran proporció, i el seu procés de processament és similar al dels productes inflats secs, però la fórmula és més refinada, i s'afegeixen més aromatitzants i additius funcionals per satisfer el gust i les necessitats funcionals de les mascotes.
Els aperitius per a mascotes tenen alts requisits de gust, aspecte i funcionalitat. Per exemple, Els aperitius dentals han de tenir una certa duresa i textura per ajudar a netejar les dents de la mascota i prevenir els càlculs dentals; Els aperitius per embellir el cabell han d'afegir ingredients com la lecitina per ajudar a millorar la qualitat del cabell de la mascota. Això requereix que l'extrusora tingui una bona flexibilitat i ajustabilitat per satisfer les necessitats de processament de diferents tipus d'aperitius.
Val la pena assenyalar que tret dels productes enllaunats, la majoria dels tipus d'aliments per a mascotes estan estretament relacionats amb el procés de bufat. El bufat no és només la part bàsica del processament d'aliments per a mascotes, però també afecta directament la qualitat, gust, nutrició i digestibilitat dels aliments per a mascotes. Per tant, triar l'equip d'extrusió adequat i dominar la tecnologia d'extrusió científica són crucials per a les empreses de processament d'aliments per a mascotes.
2. Tecnologia bàsica de processament d'aliments per a mascotes: Tecnologia d'extrusió de bufat
La tecnologia d'extrusió de bufat és una tecnologia de processament clau que integra la barreja, pastant, calefacció, extrusió i bufat. S'ha utilitzat àmpliament en la producció d'aliments per a mascotes a causa dels seus avantatges d'alta eficiència de producció, bona qualitat del producte, forta adaptabilitat a matèries primeres i àmplia gamma d'aplicacions. En el processament d'aliments per a mascotes, La tecnologia d'extrusió s'utilitza principalment per realitzar la bufada de matèries primeres, fer gelatinitzar el midó, la desnaturalització de la proteïna, i millorar la palatabilitat i la digestibilitat del producte. Al mateix temps, també pot matar bacteris nocius a les matèries primeres, garantir la seguretat dels aliments per a mascotes.
2.1 Característiques de les matèries primeres d'aliments per a mascotes i requisits per a equips d'extrusió
Les matèries primeres dels aliments per a mascotes són principalment productes carnis (com ara farina de carn, farina de peix, carn fresca), cereals, farina de soja, vitamines, minerals i altres additius. Entre ells, els productes carnis representen una gran proporció, fent que el producte tingui una forta viscositat. Aquesta característica planteja requisits especials per als equips d'extrusió:
Les extrusores d'un sol cargol no són adequades per a la producció econòmica d'aliments per a mascotes. Com que l'extrusora d'un sol cargol té un rang de cisalla estret, poca capacitat de bombeig i sense efecte d'auto-neteja. Quan es processen materials viscosos com ara productes carnis, és fàcil provocar acumulació de material, bloqueig i mescla desigual al barril de l'extrusora, que no només afecta l'eficiència de la producció, però també condueix a la qualitat del producte inestable. A més, l'extrusora d'un sol cargol té un alt consum d'energia quan es processen matèries primeres altes en greixos i proteïnes, que augmenta el cost de producció de les empreses.
Extrusores de doble cargol, d'altra banda, tenen avantatges evidents en la producció d'aliments per a mascotes. Tenen un rang de cisalla més ampli, efecte de bombeig més efectiu i efecte d'auto-neteja, que pot resoldre eficaçment els problemes de viscositat i acumulació del material. L'extrusora de doble cargol pot realitzar la barreja uniforme, pastat i extrusió de materials, fins i tot quan es processen matèries primeres amb alt contingut en greixos i carn fresca, també pot garantir una producció estable i una qualitat constant del producte. Per tant, en la producció real d'aliments per a mascotes, Les extrusores de doble cargol s'han convertit en el principal mitjà de bufat d'aliments per a mascotes, i s'utilitzen àmpliament en la producció de productes inflats secs, productes semihumits, productes inflats suaus i aperitius per a mascotes.
2.2 Principi de funcionament de l'extrusió de cargol
El procés de bufat per extrusió de cargol dels aliments per a mascotes és un procés físic i químic complex, que implica la interacció de múltiples factors com la temperatura, pressió, força de tall i temps. El principi de funcionament específic és el següent:
Primer, pretractament de matèries primeres. Les matèries primeres en pols que contenen una certa quantitat de midó (més que 20%) es barregen uniformement segons la fórmula, i després enviat al dispositiu de temperat per al tractament de temperat. L'objectiu del tremp és ajustar el contingut d'humitat i la temperatura dels materials, perquè els materials puguin arribar a l'estat ideal abans d'entrar a l'extrusora. En general, el contingut d'humitat dels materials després del temperat es controla al 10% ~ 27%, i la temperatura s'eleva a 70 ~ 98 ℃. Durant el procés de temperat, els materials absorbeixen l'aigua de manera uniforme, 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.
Segon, 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, and the materials are gradually compressed under the action of the screw and the barrel, and the pressure in the extrusion cavity gradually increases. The compression ratio (the ratio of the volume of the material at the feeding end to the volume at the extrusion end) can reach 4～10, que varia segons el tipus d'aliment per a mascotes i la fórmula de les matèries primeres.
Durant el procés de ser empès i extruït pel cargol, els materials estan sotmesos a una forta força de tall i fricció. La força de tall es genera pel moviment relatiu entre el cargol i el canó, així com entre els filets de cargol. Pot trencar les partícules dels materials, fer que les matèries primeres i els additius es barregin de manera més uniforme, i promou la gelatinització del midó i la desnaturalització de la proteïna. La força de fricció es genera entre els materials i la paret interior del canó, així com entre les partícules materials, que pot generar molta calor, que afavoreix l'escalfament dels materials. A més, segons les necessitats de processament, el vapor pot fluir a través de la camisa del barril per escalfar els materials entre les parets, de manera que els materials de la cavitat d'extrusió estiguin en estat d'alta temperatura i alta pressió. La temperatura a la cavitat d'extrusió es controla generalment a 120 ~ 180 ℃, i la pressió es controla a 2~10MPa.
Tercer, gelatinització del midó i desnaturalització de proteïnes. Sota l'acció d'alta temperatura, alta pressió i força de tall, el midó dels materials absorbeix aigua i s'expandeix, l'estructura cristal·lina es destrueix, i es converteix en un estat amorf, que s'anomena gelatinització del midó. La gelatinització del midó pot millorar la digestibilitat dels aliments per a mascotes, perquè el midó gelatinitzat és més fàcil de descompondre pels enzims digestius de les mascotes. Al mateix temps, the gelatinized starch can also improve the viscosity and binding force of the materials, making the extruded products have good shape and texture.
In addition to starch gelatinization, the protein in the materials will also undergo denaturation under the action of high temperature and high pressure. Protein denaturation refers to the change of the spatial structure of protein molecules without changing the primary structure, which can improve the solubility and digestibility of protein, and make the pet food have better palatability. Al mateix temps, the denatured protein can also form a network structure, which can wrap the starch and other components, helping to maintain the shape of the puffed product.
Quart, 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, the puffed materials are cut into short particles of uniform length by the cutting device (rotary knife) installed at the die head. La longitud de les partícules es pot ajustar canviant la velocitat del ganivet rotatiu per satisfer els requisits dels diferents tipus d'aliments per a mascotes.. Per exemple, les partícules de menjar per a cadells són més petites i curtes, mentre que les partícules del menjar per a gossos adults són més grans i més llargues.
Cinquè, postprocessament. Les partícules inflades extruïdes han de passar per enllaços de postprocessament com ara l'assecat, refredament, condiments i envasos per convertir-se en els productes finals d'alimentació per a mascotes. L'assecat és reduir el contingut d'aigua de les partícules al rang estàndard (10%-12% per a productes secs), per allargar la vida útil del producte. El refredament és reduir la temperatura de les partícules seques a temperatura ambient, evitar que el producte s'acumuli i es deteriori. El condiment és ruixar agents aromatitzants, atraients i altres additius a la superfície de les partícules per millorar la palatabilitat del producte. L'embalatge consisteix a empaquetar les partícules condimentades en bosses o llaunes per garantir la higiene i la seguretat del producte i facilitar l'emmagatzematge i el transport..
2.3 Factors clau que afecten l'efecte de bufat de l'extrusió de cargol
L'efecte de l'extrusió de cargol afecta directament la qualitat del menjar per a mascotes. Hi ha molts factors que afecten l'efecte bufat, incloent principalment les característiques de la matèria primera, paràmetres de temperat, paràmetres d'extrusió i estructura del capçal de la matriu. Dominar aquests factors clau i fer ajustos científics pot garantir l'estabilitat de l'efecte bufat i la consistència de la qualitat del producte..
2.3.1 Característiques de la matèria primera:
El tipus, mida de partícula, El contingut d'humitat i la composició nutricional de les matèries primeres tenen un gran impacte en l'efecte de la bufada. Per exemple, el contingut de midó de les matèries primeres afecta directament la taxa d'expansió del producte. Com més gran sigui el contingut de midó (dins d'un interval determinat), millor serà l'efecte bufat, i com més gran és la taxa d'expansió del producte. La mida de les partícules de les matèries primeres ha de ser uniforme, generalment 80-100 malla. Si la mida de la partícula és massa gran, els materials no són fàcils de barrejar de manera uniforme i plastificar completament, que afecta l'efecte bufat; si la mida de la partícula és massa petita, és fàcil provocar bloqueig de material i augmentar el consum d'energia. El contingut d'humitat de les matèries primeres abans del temperat s'ha de controlar a 8%-12%. Si el contingut d'humitat és massa alt, els materials són fàcils d'enganxar al cargol i al canó, afectant l'extrusió i el bufat; si el contingut d'humitat és massa baix, la força de tall i la força de fricció entre els materials són insuficients, i la gelatinització del midó és incompleta, resultant en un mal efecte de bufat.
2.3.2 Paràmetres de temperat:
Els paràmetres de temperat inclouen principalment la temperatura de tremp, Temps de temperat i contingut d'humitat després del temperat. La temperatura de temperat és generalment de 70 ~ 98 ℃. Si la temperatura de temperat és massa baixa, els materials no poden absorbir l'aigua de manera uniforme, i la gelatinització del midó és insuficient; si la temperatura de temperat és massa alta, els materials es poden enganxar amb antelació, afectant l'extrusió posterior. El temps de temperat és generalment 2-5 minuts, que s'ha d'ajustar segons el tipus de matèries primeres i el contingut d'humitat. El contingut d'humitat després del temperat és del 10% ~ 27%, which varies according to the type of pet food. Per exemple, 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. No obstant això, 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: secció d'alimentació, 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, millor serà l'efecte bufat, 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.
A més, 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 mateix temps, 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, productes semihumits, productes inflats suaus, 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. Per exemple, 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, velocitat del cargol, 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. A més, the control system adopts a touch screen operation interface, which is simple and intuitive, fàcil d'operar, 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, duresa, crispness and nutritional composition of the products are uniform, which can meet the strict quality requirements of pet food. Al mateix temps, 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 (petit, 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. A més, 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, baix soroll, 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.
Pel que fa al disseny estructural, 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, with a built-in heating element and a cooling system, 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 precision machining and heat treatment, which has good wear resistance and corrosion resistance.
In terms of performance parameters, 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 caps, dispositius d'alimentació, 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. Per exemple, 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.
A més, 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 el cap) 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 mateix temps, 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. Per exemple, 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 tones), 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 tones), 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 (com el consum d'energia, 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, posada en marxa, formació, 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. Per tant, 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 Preparació de matèries primeres:
The raw materials of dry puffed pet food mainly include meat meal (chicken meal, beef meal, farina de peix), cereals (corn flour, wheat flour, rice flour), farina de soja, vitamines, 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 malla, which is conducive to uniform mixing and full plasticization.
4.1.2 Mescla:
The crushed raw materials are sent to the mixer according to the formula ratio for uniform mixing. The mixing time is generally 5-10 minuts, 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 minuts, and the moisture content after tempering is 15%-20%. Durant el procés de temperat, 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. Sota l'acció d'alta temperatura, alta pressió i força de tall, 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 Tall:
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 Assecat:
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 minuts. The purpose of drying is to reduce the water content of the particles to 10%-12%, per allargar la vida útil del producte. The drying equipment can adopt belt dryer or fluidized bed dryer, which has the advantages of uniform drying and high efficiency.
4.1.7 Refrigeració:
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 minuts. 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 Embalatge:
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. Les especificacions d'embalatge es poden ajustar segons les necessitats del client, com ara 1 kg/bossa, 5kg/bossa, 10kg/bossa, etc. Després d'envasar, els productes s'emmagatzemen en un lloc sec, magatzem fresc i ventilat.
Punts tècnics clau: La clau per a la producció d'aliments inflats per a mascotes és controlar els paràmetres d'extrusió i els paràmetres d'assecat. Els paràmetres d'extrusió (velocitat del cargol, temperatura, pressió) afecta directament l'efecte bufat i la textura del producte; els paràmetres d'assecat (temperatura, temps) afecta directament el contingut d'aigua i la vida útil del producte. Les nostres extrusores de la sèrie HTS BASIC tenen funcions de control de paràmetres precises, que pot garantir l'estabilitat del procés d'extrusió i la consistència de la qualitat del producte.
4.2 Aplicació a la producció d'aperitius per a mascotes
Els aperitius per a mascotes tenen alts requisits de gust, aspecte i funcionalitat, i les nostres extrusores de la sèrie HTS BASIC, amb la seva configuració flexible i control de paràmetres precís, 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 Preparació de matèries primeres:
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 ells, 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 malla, which is conducive to the formation of the product and the improvement of the texture.
4.2.2 Mescla:
The crushed raw materials are mixed uniformly in the mixer according to the formula ratio. The mixing time is 8-12 minuts, 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 minuts, 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 Tall:
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 Assecat:
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 minuts. 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 Refrigeració:
The dried products are cooled to room temperature in the cooling equipment, which takes 8-12 minuts.
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 Embalatge:
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.
Punts tècnics clau: 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 és adequat per a mascotes amb poca capacitat de mastegar. 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 Preparació de matèries primeres:
The raw materials of semi-wet pet food mainly include meat meal, farina de peix, cereals, farina 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 malla.
4.3.2 Mescla:
The raw materials are mixed uniformly in the mixer according to the formula ratio. The mixing time is 6-10 minuts, 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 minuts, 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 Tall:
The extruded products are cut into short particles by the rotary knife, with a length of 4-8mm.
4.3.6 Refrigeració:
The cut products are cooled to room temperature in the cooling equipment, which takes 10-15 minuts. Cooling can prevent the product from deteriorating due to high temperature.
4.3.7 Embalatge:
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. Les especificacions d'embalatge es poden ajustar segons les necessitats del client.
Punts tècnics clau: 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 Solucions:
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 Solucions:
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: too high moisture content of the product; too high extrusion temperature; too high protein content of raw materials; insufficient drying of the product.
5.3.2 Solucions:
Reduce the moisture content of the product by adjusting the tempering parameters and drying parameters; reduce the extrusion temperature of the homogenizing section; adjust the product formula, reduce the protein content of raw materials appropriately; extend the drying time, ensure that the water content of the product meets the standard.
5.4 Product Deterioration
5.4.1 Causes:
The main causes of product deterioration are: insufficient sterilization during extrusion processing; too high water content of the product; poor packaging; improper storage.
5.4.2 Solucions:
Increase the extrusion temperature and pressure, ensure that the sterilization rate reaches more than 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, magatzem fresc i ventilat, 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 Solucions:
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, posada en marxa, formació, and after-sales maintenance, technical guidance, 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, capacitat de producció, 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.
A més, 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 mateix temps, 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 Servei postvenda
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.
A més, we provide a long-term supply of genuine spare parts, with a large number of common spare parts (such as screw elements, morir caps, 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 | Doble cargol paral·lel, co-rotació | Doble cargol paral·lel, co-rotació | Doble cargol paral·lel, co-rotació |
| Diàmetre del cargol (mm) | 30/45/65 | 80/95/110 | 65/80/95/110 (customizable) |
| Compression Ratio | 4:1 ~ 8:1 (ajustable) | 5:1 ~ 10:1 (ajustable) | 4:1 ~ 12:1 (customizable) |
| Velocitat del cargol (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) |
| Pressió d'extrusió (MPa) | 2 ~ 8 | 3 ~ 10 | 2 ~ 12 |
| Capacitat de producció (kg/h) | 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) |
| Sistema de control | 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) |
| Mètode de calefacció | 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 (opcional) | 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) |
| Poder (kW) | 15 ~ 45 | 55 ~ 160 | 37 ~ 200 (customizable) |
| Overall Dimension (L×W×H, m) | 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) |
| Pes (t) | 0.8 ~ 2.5 | 3.0 ~ 8.0 | 2.0 ~ 10.0 (customizable) |
| Core Advantages | High cost-effectiveness, fàcil operació, suitable for initial pet food enterprises | Alt rendiment, baix consum d'energia, rendiment estable, 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.
Barril & 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.
Sistema de control: 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, funcionalització, 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) està creixent, 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; alhora, 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, relació de compressió, 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); alhora, 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 “equipament + formula + procés”; alhora, 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. Conclusió
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 futur, 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, estalvi d'energia, 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.