processes 250–2,000 kg/h of grain and oilseed crops
we ensure the uninterrupted operation of the equipment
| Extruder model | Productivity | Electric power | Processing temperature | Consumption (kWh/t) |
|---|---|---|---|---|
| BRONTO E-250 | 210–250 kg/h | 37 kW | 130–150 °C | 148-176 kW/t |
| BRONTO E-500 | 410–500 kg/h | 55 kW | 130–150 °C | 100-121 kW/t |
| BRONTO E-1000 | 920–1200 kg/h | 92,5 kW | 130–150 °C | 77-101 kW/t |
| BRONTO E-1500 | 800–1500 kg/h | 178 kW | 100–130 °C | 118-222 kW/t |
| BRONTO E-1700 | 1500–1700 kg/h | 160 kW | 130–150 °C | 94-106 kW/t |
Since then:
We have developed extruder models with capacities of 150, 250, 500, 1000, 1500, 1700, and 2000 kg/h.
We have developed extruder variants:
Over the years, the extruders have been sold on every continent.
We now provide technical support for our products worldwide.
Our technical representatives provide support from 23 countries.
we will ensure the uninterrupted operation of your extruders
| Extruder model | Capacity, t/day | Raw material | Extruder function | Raw material moisture content, % |
|---|---|---|---|---|
| Е-150 | 3,6 | cereal crops | increased digestibility, destruction of microflora | 12-15 |
| Е-250 | 6 | cereal crops, peas, soybeans | increased digestibility, destruction of microflora | 12-15 |
| Е-500 | 10 | cereal crops, peas | increased digestibility, destruction of microflora | 12-15 |
| Е-500 S | 12 | soybean | reduction of anti-nutrients, heating prior to oil extraction | 8-9 |
| Е-1000 | 24 | cereal crops, peas, lupin | increased digestibility, destruction of microflora | 12-17 |
| Е-1000 S | 24 | soybean | reduction of anti-nutrients, heating prior to oil extraction | 8-9 |
| Е-1500 | 24 | oilcake, meal, protein-vitamin-mineral supplements, yeast | production of granulated feed | 18-27 |
| Е-1700 | 40,8 | crushed soybeans | reduction of trypsin inhibitors, heating prior to oil extraction | 8-12 |
You can review the analysis of extruder operations in the case study “How Indian agricultural giant Lifeline Feed modernized its production with Bronto.”
The durability of the working zone components of Bronto extruders is guaranteed for 400 hours of operation.
Bronto extruders process raw materials using dry extrusion technology.
EXPERTS
Dry extrusion occurs through mechanical friction and pressure within the screw chamber without steam injection, reducing urease activity to 0.05–0.2 pH.
Wet extrusion involves preliminary steam conditioning, which increases line productivity by 15–20% and reduces screw wear. However, if the extruded product is subsequently to be fed into an oil press (for vegetable oil extraction), wet extrusion will result in a significant reduction in oil yield from the press cake.
Extrusion moisture content depends on the raw material and its oil content.
For oilseeds, extrusion moisture ranges from 8% to 12%.
For cereals and legumes, extrusion moisture is 14–18%.
For feed mixtures containing fiber and oil-bearing components, extrusion moisture is 14–25%.
If the extrusion moisture content falls below these parameters, the processing temperature will rise rapidly (often exceeding 160–180°C). This leads to a loss of the extruded product’s quality characteristics.
If the extrusion moisture content exceeds these parameters, the extruder will be unable to maintain the necessary temperature and pressure within the screw section. Consequently, the raw material will not undergo sufficient thermobaric processing.
We manufacture “universal” extruders.
In practice, this means the extruder is supplied to the customer with Sets of Interchangeable Parts.
For processing cereal crops, a specialized “grain” configuration—consisting of specific screw elements, heating washers, and dies—is installed in the screw assembly.
If there is a need to extrude soybeans or rapeseed, the extruder is stopped, and the screw assembly is reconfigured using an “oilseed” set of interchangeable parts.
This is because extruding peas or grain aims to increase the nutritional value of low-oil raw materials, whereas extruding soybeans aims to reduce anti-nutritional factors and heat the product prior to oil extraction.
Different raw materials and objectives require different approaches to configuring the extruder’s working zone.
We guarantee the durability of wear parts (those in contact with the raw material) for at least 400 hours of operation.
Provided that requirements for removing metal and abrasive impurities from the raw material are met, the service life of the auger’s working components ranges from 800 to 1,500 tons of processed material.
For successful extrusion, the raw material must have a specific moisture content. For example:
Fiber content: max 25%.
We developed our first single-screw extruder in 1998 for processing corn, wheat, and peas, with a capacity of up to 500 kg/h.
This development was a response to customer demand for feed ingredients with enhanced nutritional value.
EXPERTS