Products

Industrial buckwheat processing: plant design and milling technology

Buckwheat is a naturally gluten-free pseudo-cereal that requires specific processes to yield high-quality flour. Unlike hard wheat, its unique botanical and physical structure mandates a customized approach to milling plant design and processing.

Buckwheat grain cleaning: Omas plant and machinery

The first step in the process is cleaning, which is essential to obtaining a raw material free from impurities such as stones, dust, and foreign seeds. For buckwheat, this stage is particularly delicate because the kernels are smaller and more irregular than those of wheat.

Omas Industries machinery allows for deep and accurate cleaning thanks to the use of air screen grain cleaner, brush machines, and latest-generation destoners, capable of effectively separating foreign bodies. During this phase, tools like a precision grain moisture meter help maintain consistent processing parameters, ensuring the quality of the incoming product.

Compared to hard wheat, buckwheat grain cleaning requires greater set-up flexibility due to the grain’s different size and density. Omas’s modular approach guarantees maximum precision in raw material preparation.

Buckwheat Milling: Flexy Mill Technology

Milling buckwheat is the core of the processing operation and represents one of the most critical stages.

The Flexy Mill system allows for automatic, micrometric regulation of the milling process, enabling changes in the speed and direction of the rolls without modifying the roller mill diagram. Thanks to the Direct Drive System (ODS), the distance between the rolls can be adjusted with a precision of up to 0,004 mm, offering total control over granularity and yield.

The digital interface allows for the storage of various processing “recipes,” adapting the process to the specific characteristics of buckwheat, which is more fragile and irregular than hard wheat.

At the heart of this phase is the Leonardo Edge roller mill, an innovative machine that combines high energy efficiency with maximum operational flexibility. Thanks to its direct drive and independent roll control, it can process buckwheat with extreme delicacy, preserving its nutritional and aromatic properties. The precision adjustment ensures uniform flour, minimizing waste and mechanical wear.

Supporting the initial breaking and kernel preparation is the Cimabue impact detacher, ideal for opening the product and improving the efficiency of the subsequent roller mill. This machinery uses centrifugal force to controllably separate the kernel parts, ensuring more homogeneous milling and a higher yield in the reduction phase.

For finer grinding or specific productions, Omas also uses the Botticelli hammer mill, designed to treat buckwheat with great precision, preventing overheating and keeping the product characteristics intact. 

Discharge and storage of milled buckwheat

After milling, the product is safely and hygienically discharged and stored. Omas Industries buckwheat mill plants are designed to manage continuous and efficient flows, utilizing precision scales, screw conveyors, vertical bucket elevators, and vibrating silo extractors that ensure correct product flow and preserve quality.

In the case of buckwheat, the flour must be protected from humidity and potential contamination. Our systems guarantee cleanliness and security, ensuring the flour does not come into contact with cereals containing gluten.

Buckwheat flour packaging

Packaging is the final stage of processing. We propose integrated lines that allow buckwheat flour packaging in sacks, big bags, or custom containers, maintaining maximum hygiene and traceability.

The bagging stations ensure precise dosing and an automated flow that reduces product manipulation and changeover times. The system is designed to handle packaging destined for the “gluten-free market,” with solutions that guarantee food safety and sanitation.