The fish food is close to the human beings food in the fine level, the health index and the nutritional ingredients, some of them request more highly than human beings.
In extruder, the ingredients are cooked under intense heat and pressure as it moves toward the open end of the extruder where ingredients pass through a shaping die and knife.
Animal food is dried in a multi-pass dryer until its moisture content is low enough to make it shelf stable. Animal food may pass through a coating drum where animal fat and vitamins are applied onto animal food.
The extruder has a pair of screws and sleeves that have the function of mixing and twisting. After the raw material enters the expansion chamber, the material is squeezed, rubbed, sheared, etc. between the screw sleeves, and the internal pressure is continuously increased, up to 4Mpa, and the temperature is continuously rising, up to 140 degrees Celsius. During the period of 3-7s, the temperature and pressure increase sharply, and the structure of the material changes, which further gelatinizes the starch, denatures the protein, destroys the crude fiber, and kills harmful bacteria such as Salmonella. The high temperature and high pressure materials come out from the discharge port, and the pressure is suddenly released in an instant, and the water is partially flashed. After cooling, the material is loose and porous, and the expanded material is in the form of agglomerates, flocs or coarse chips.
Q1.Are you a manufacturer or a trading company?
A:We are a professional manufacturer of food&feed machine.
We have own factory and R&D department.
Q2.Can you provide food or feed formula?
A:We can provide basic formula for produce the food etc.
And help customer to produce new products according to customer’s formula.
Q3.What after-services do you provide?
A:Send engineers for installation,trial running and training workers at customer’s site.
Handling the problems occurred during use.Supply spare and wearing parts on discount.
Help customers to solve any other problems.
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