Extrusion is a thermodynamic process in which raw material passes through an extruder under high pressure and temperature, resulting in an expanded, sterile and highly digestible product.
Extrusion is a thermo-mechanical processing method in which raw material (flour, grain mixtures, protein concentrate or soy) is fed into the extruder where the screw compresses the mass and increases pressure and temperature. At the outlet die, the mass suddenly expands and dries, producing a porous, easily digestible granulate.
The high temperature (110–160°C) destroys pathogens, anti-nutritional factors and bacteria, ensuring a microbiologically safe product with extended shelf life without preservatives.
Grinding and dosing of components — flour, proteins, premix
Addition of moisture and steam to prepare the mass for extrusion
The mass passes through the screw at 20–100 bar and expands at the outlet
Moisture is reduced to ≤10%, with optional oil and flavour coating
Extrusion is indispensable in the pet food industry, aquaculture and soy processing.
AM Tehnolog offers single-screw and twin-screw extruders for different raw materials and capacities.
Complete lines in which extrusion is the key processing step.
Factors that determine the quality and characteristics of the extruded product.
Our team of technicians will help you choose the right extruder for your raw material and planned capacity.