Hard Wheat

Raw material handling

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Our conveyor lines cover all applications throughout your value chain, from raw material intake to conveying finished products. We customize a system to meet your space and process needs, using any combination of elevators, trough chain, belt and screw conveyors.

Weighing and dosing

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Our weighing and dosing offers you the precision and accuracy you need. It can also help with internal processes and control by ensuring accurate weight registrations – from loading and unloading of bulk products, bagging and weight control to mixing systems for micro-components.

Preheating

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During preheating, the raw beans are heated without losing moisture. Thanks to the fluidized preheating system, the grains are evenly surrounded by heat, preventing burns. The aim is to strengthen the outer shell of the grain by gelatinizing the starch on the surface, which solidifies on the outside.

Steam Reactor

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In the reactor, superheated steam flows evenly around the raw material, filling the reactor with pressure. The sudden release of pressure causes the moisture in the grains to evaporate, breaking down starch molecules and increasing the grain's volume by up to 12 times. 

Expansion Channel

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The channel, a drum approximately eight meters long, catches the finished product and completes the expansion process. It ensures high yield through uniform product inflow, dissipates excess energy, and gravity-feeds the product into a removal channel.

Sieving

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The puffed product passes through a sorting unit with a tumbler sieve. Here, the various grain sizes are separated by screen inserts of varying mesh sizes. 

Coating

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In the coating drum, the extruded and puffed cereals are kept in motion while sugar syrup is applied to cover the surface with a glossy finish. It is also possible to add solid toppings such as nut splitters or chocolate sprinkles. 

Drying

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Extremely gentle drying

Bühler is the global leader in thermal processing technology. Our dryers offer an exclusive hygienic design that makes cleaning faster and easier, improving productivity and helping prevent costly recalls. 

Puffed hard wheat with choco coating