SILO GRAIN CLEANING PLANSIFTER

R&D-renewed power: high-performance, precise cleaning system

An improved design in which the grain’s entire path from inlet to outlet is built on maximum capacity, maximum cleaning efficiency and minimum clogging. A dual-duty machine, it is used both for first (pre-) cleaning in silos and for second (fine) cleaning inside the mill.

WORKING PRINCIPLE

Horizontal aspiration channel (pre-cleaning) — inlet stage: before entering the separator, the grain is exposed to a strong air stream against the flow direction; dust, straw and light chaff are sucked away by the air before they reach the screens, preventing the screens (sieve boxes) from clogging. Balanced 50% + 50% distribution — start of sieving: on entering the separator the product is split in two and poured evenly onto the screen surface — 50% to the top deck and 50% to the middle — providing coarse cleaning at double capacity. Top and middle decks (coarse cleaning): with the balanced 50% + 50% distribution they catch foreign matter, chaff and bodies larger than the grain and eject them from the system. Bottom deck (main grain separation): retains the sound kernels and routes them to the outlet; thanks to a counter-flow air stream at the outlet, the product is once more strongly aspirated via an aspiration channel or aspirator and fully cleared of dust, while the sand, dust and small foreign matter falling through the screen are removed. Three-deck vibratory sieving — separation stage: the body, suspended at four corners on special elastic rods, performs a circular/vibratory motion driven by the motor and an adjustable balanced flywheel pulley (with balance weights), separating the grain by size from foreign matter, chaff, sand and stones. Aspiration channel or radial aspirator — outlet stage: the grain that has passed the screens and been size-cleaned meets an aspiration channel or radial aspirator once more at the machine outlet, where the last light kernels and dust are removed for final cleaning.

KEY ADVANTAGES

• Dual duty: The ability to be used both for first (pre-) cleaning in silos and for second (fine) cleaning inside the mill provides application flexibility.

• Low energy, high yield: Through the balance adjustment of the flywheel-pulley system, the machine consumes very little energy while delivering high capacity.

• User-friendly design: Running at high capacity in a small footprint saves space, while simple screen changes keep downtime (maintenance time) to a minimum.

ENGINEERING NOTE

Layered sieving technology: to bring the grain to the highest degree of purity, the machine is built on a staged separation geometry — sequential distribution and sieving across the decks delivers maximum finished-product purity.