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Grain cleaning solutions

Cleaning systems designed to remove impurities, protect equipment and improve grain quality

Grain cleaning systems for better quality and safer handling

Grain cleaning is a key step in post-harvest operations. It helps remove dust, husks, broken grains, coarse waste and light impurities before storage, drying or further processing. GGS designs grain cleaning systems adapted to different crops, impurity levels, throughput requirements and process layouts. Depending on the project, the installation can include rotary grain cleaners, precleaners, dust extraction systems, cyclones, filters or optical sorting lines to improve grain quality and protect downstream equipment.

Protect your dryers, conveyors and storage systems

A well-designed cleaning process improves the reliability of the whole installation. By removing impurities at the right stage, it helps reduce clogging risks, protect dryers and handling equipment, improve airflow and maintain stable operating performance. GGS selects and integrates the most suitable cleaning technology according to the product, required throughput, impurity type and position in the process line. The objective is to ensure efficient separation, reliable operation and dust-controlled grain handling, even during intensive harvest periods.

Choose the right grain cleaning process

Depending on the application, several cleaning functions can be combined:

  • Precleaning to remove coarse and light impurities at reception,
  • Rotary cleaning to separate good grain from broken kernels and waste,
  • Grading to sort grain according to size,
  • Dust extraction to control airborne particles and improve site safety,
  • Cyclones and filters to collect dust and cleaning residues,
  • Optical sorting for high-precision separation.

Each configuration is adapted to the required level of cleanliness and integrated into the overall grain handling process.

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Our cleaning solutions

Marot rotary grain cleaners

Marot rotary grain cleaners are based on a rotary screening system with continuous movement and no vibration. They are designed for efficient precleaning, cleaning and grading, helping separate good grain from broken kernels, coarse waste and light impurities.

Key benefits:

  • Rotary screening technology
  • No vibration during operation
  • Efficient impurity removal
  • Suitable for cleaning and grading
  • Adapted to different grain types

Cyclones and filters

Cyclones and filtration systems are designed to collect dust, husks and light particles extracted during the cleaning process. They help improve working conditions, reduce airborne dust and support safer, cleaner grain handling operations.

Key benefits:

  • Dust and light particle extraction
  • Improved site cleanliness
  • Better working conditions
  • Compatible with cleaning systems
  • Efficient residue collection

Precleaner dust management

Grain precleaners remove coarse and light impurities at reception or within the handling line. They help protect dryers, elevators and conveyors by reducing clogging risks and improving process efficiency before storage or drying.

Key benefits:

  • Removal of coarse impurities
  • Light waste extraction
  • Protection of dryers and conveyors
  • Easy integration into handling lines
  • High-throughput operation

Optical sorting lines

Optical sorting lines provide high-precision grain separation based on colour, shape and product defects. Using advanced detection and ejection systems, they help achieve consistent product quality for demanding grain, seed or food-grade applications.

Key benefits:

  • High-precision separation
  • Colour and shape detection
  • Improved final product quality
  • Suitable for demanding applications
  • Consistent sorting performance

Improve your grain cleaning process with GGS

Whether you need to remove impurities at reception, protect your dryer, improve grain quality or manage dust in your handling line, GGS can help define the right cleaning solution for your site.

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