PETKUS Smooth Wall Silo GWS — clean, residue-free storage for slow-flowing, sensitive products

The GWS system is built for powders, fine seeds, and other heavy or slow-flowing goods that must stay homogeneous and contamination-free. Smooth interior surfaces, rounded corners, and countersunk screws minimise adhesion and enable residue-free discharge. Cells can be installed indoors or outdoors, arranged in rows or blocks, and sized to fit the footprint. Flexible cell formats (single, half, quarter) improve space utilisation and can provide up to 25% more capacity compared with round silos, while the sandwich construction creates concrete-filled hollow pillars for high stability. A complete solution with machinery house and gentle conveyor technology safeguards product quality. Capacity per cell is up to 400 m³.

Key advantages

• Clean handling with smooth walls, rounded corners, countersunk screws.

• Space-efficient modular cells; potential 25% capacity gain versus round silos.

• Continuous emptying with product-matched discharge hoppers, round or square.

• Coated wall elements with cathodic dip-coating; robust steel structure and cladding.

• Complete system: machinery house plus gentle conveying.

• Flexible installation indoors or outdoors; row or block batteries.

• Capacity up to 400 m³ per cell.

Technical highlights

• Compact, closed modular design.

• Hopper options with round or square openings.

• Sandwich construction; horizontal and vertical bolting forms hollow pillars filled with concrete after assembly.

25% increase refers to capacity compared with a round silo of similar footprint.