This pet food production line adopts high puff degree corn powder cereal as a basic raw material, supplemented bone meal, meat, protein, vitamins, fiber and other nutrients, with a screw extruder machine through strong squeeze instantaneous puffing molding to produce different shapes of pet food pellets like dog food,cat food etc, flavoring coating after drying enhance the taste of the final products, and one set of automatic packaging finally.
pet food production line advantages
The pet food production line has two type,one is dry type dog food production line, the other is wet type food manufacturing plant,wet type is equipped with a boiler which can continuously providing hot steam. It can produce all kinds of feeds and foods like manufacturing floating feeds for aqua feed,catfish feed pellet,goden fish feed pellet,shrimp feed pellet, crab, loach, bullfrog, etc, and pet food like dog food,cat food and etc. The pellet size can be from 0.9-15mm to feed different size fishes. this dog food production line has high capacity and top quality products, our pet food production machine is a preferred choice for medium or large size feed processing factory,aquaculture farm and pet food industry.
Wet vs. dry of pet foods
On the wet side of pet food processing, LA specializes in retort systems for cans, pouches, cups and bowls,Greg Jacob says a major trend in packaging for wet pet foods is going to smaller single-serve sizes, which consumers prefer for convenience and less wastage compared to larger containers that tend to lose appeal after prolonged storage in a refrigerator.
“Examples of the new smaller sizes include three-oz. and five-and-a-half-oz. cans with peel-off lids,” he says. “Plastic pouches were popular in the early 2000s, but they’ve fallen off somewhat, and now there’s more demand for plastic cups and bowls.”
But innovation continues. Science Diet dry cat food by Hill’s Pet Nutrition of Topeka, KS, for instance, comes in a three-and-a-half-lb. plastic pouch with a clever Velcro top strip that’s designed for easy opening and closure.
Allpax manufactures retorts and automated loading and unloading systems. A key element in productivity relies heavily on loading and unloading speed. Older-style retort basket loaders based on magnetic handling of cans typically have a throughput of 500 units per minute. Today’s loaders are much faster. An example is Allpax’s Hyperloader unit, which can sweep cans into the retort baskets in a continuous motion at a rate of 3,000 units per minute for 3-oz. cans.
pet food production process
Raw material ingredients should be grinded to the required size by feed crusher. We supply two types of feed grinders to meet your different requirements: feed Hammer Mill is suitable for small or medium sized feed extruding factories; SPSF feed Hammer mill is used for grinding raw materials by large and medium livestock and aqua feed mills;
♦ Pet Food Production Mixing
Mixing process is a key process in pet food production. The basic process is to weigh the raw materials in different weight according to fomula, then pour them in the crusher to decrease size, and later all materials are temporarily stored in the storage silo. Then all matrials are ready, feed them in the mixer for mixing.
Extruding is a heat treatment process with high temperature and in short time. It can not only reduce the degradation of food nutrients, improve the digestibility of protein starch, but also destroy the anti nutrient components and microorganism. All shapes of pet dry food such as round, triangle, flower shape and bone shape can be produced through different molds (templates) of the feed extruder machine. In pet food production, fat is usually added to improve pet food palatability, and this is carried out in conditioning process. Besides, to give different colors to pet food tablets, manufacturers usually add pigmented water in extruding chamber.
♦ Pet Food Production Drying
The drying section is mainly used for removing water in the extruded pet food. After extrusion, the texture of the material is relatively soft and water content reaches 20~30%. After the drying process, the finished product moisture is controlled at 8%~10%, which can ensure that the material is stored in a certain period of time.
Our mesh belt dryer is a continuous convective belt dryer. Pellets formed through the extruder are stacked in layers on a wire mesh or perforated plate belt conveyor and conveyed continuously through drying chambers.
During this process, the drying air is passed repeatedly through the products layer until pellets have the optimum moisture content before leaving the dryer. While if you choose wet type fish feed machine, we recommend the gas type pellet dryer.
♦ Oil and fat spraying
Oil and fat are the best source of energy, so 2%~40% of oil and fat can be added to formula according to pet growth needs. We suggest that the content of the fat in the formula, that is the content of the total oil in the extruder be kept within 12%. If the content of the oil is required over 12% and the firmness of the granular material will be significantly reduced. If the extruded material needs more than 12% oil content, the extra oil is suggested to be added in the way of external spray after drying. It can be used at normal pressure or vacuum spray depending on how much oil is added. The external spraying will make the pet food tablets appearance more tempting. In addition to oil, some powdered attractant is also sprayed to increase pet feed palatability.
♦ Cooling & sieving
The main purpose of the cooling section is to cool the dried material from high temperature to near room temperature and take away part of the moisture content. Also, in this process, the ineligible food tamblets will be separate from eligible ones.
♦ Pet food packaging
Some manufacturers package the pet food of same shapes in one bag, but some would blend several pet food tamblets in different shapes and colors together and pack them in one bag. The conventional weight include: 5kg, 1kg, 500g, 20g, and also 20-50kg large package.To make the finished pellets easy to store, transport and catch the clients’ eyes, they should be packed properly. With our electronic weighing and packing machine, the finished pellets can be packed into bags, weighed, conveyed, and sealed automatically, which saves labor and time greatly and meet the requirements of large scale production. For this packing machine, automatic heat typing code, automatic bag sewing and automatic thread cutting can be optional functions.