The extruder with preconditioner is designed for production of:

  • pellet mixed feed chunks for poultry and pets (cats and dogs), predators and fish
  • textured or texturized vegetable protein(TVP), also known as textured soy protein (TSP), soy meat or soya chunks and nuggets.


You’ll be able to:

  • add protein and mineral supplements into raw materials prior to extrusion process
  • produce animal feed with protein admixtures
  • get a high degree of starch dextrinization up to 90%
  • produce nutrient mixed feed using low-grade waste


 wheat, neigh, maize, barley, peas, beans, soybeans, rape and sunflower, as well as complex mineral supplements and soy flour

Parameter  Value
Capacity for soybean processing, kg/ hour:  1500
Capacity for feed processing, kg/hour:  500
Power, kW: 97
Steam consumption per 1 kg of feed, kg: 100
Length, mm: 2400
Width, mm: 2400
Height, mm: 2850
Weight, kg: 2400

Raw material is supplied into hopper and preconditioner of extruder.

The preconditioner is a component that pre-heats, moistures and at the same time mixes and injects hot steam into raw material. Dry steam pressure is 0.2-0.5 MPa and temperature – 110-130 °C. The raw material is softened and heated to 65-75 °C.

Preconditioning  increases the production capacity of extruder, improves the quality of raw material and reduces the wear of the working parts over 20%.

Extrusion is a process of thermal treatment, sterilization, dehydration, texturing and granulating of the final product.

Raw material is heated by steam during a short-term (4-6 sec.) and pressed to 30 atmospheres. During the time of thermal process (which is less than 6 seconds) the protein and lysine content is not reduced.

Moisture is vaporized and starch cells are ruptured and availability of carbohydrates action of digestive enzymes is increased. In the process of extrusion the amount of protein increases.

The output of finished product increased by 3.4% compared to dry extrusion. After extrusion with preconditioning, for example full-fat soya does not require any drying.

Short but intensive heat, moisture and pressure is an effective way to destroy salmonella and other pathogenic bacteria, fungi and mould.

Nutrients become easy digestible which is mainly important for predatory fish species. Enzyme inhibitors are inactivated and toxins are neutralized which is highly important for any fish feed. 

Extruder E-1500 BRONTO on request can be equipped with touch control panel which fully visualizes feed production process.