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Gruber - Model GWSI -Smooth Wall Advanced Silo Interior
Gruber smooth wall silo type GWSI for indoor installation according to EN1090 standard. In many cases, the smooth-walled round silo from Gruber is the most cost-effective solution of all internal silos. The patented silo system has no bracing on the inside and the silo feet are also completely bolted to the outer shell. This means that there is hardly any dust build-up inside the round silo. The Gruber smooth wall silo can be supplied with a filling volume per silo of 5m³ to 370 m³ or silo diameter 2.25m to 7.5m. Funnel silo: For round silos, free-standing discharge funnels or internal funnels can be installed. Ventilation silo: For optimal grain ventilation, either a ventilation funnel or ventilation channels can be installed. The ventilation fan is adjusted to the silo height and the silo content.
The Gruber smooth wall round silos type GWSI are equipped with supports, feet and floor mounting brackets as standard.
Accessories as requested:
- Access hatch
- Auger feedthrough
- Auger for silo emptying
- Silo ventilation
- Cover nets
- Installation hopper with and without ventilation
- Drain funnel with feet
- Floor mounting ring.
The Gruber smooth-wall round silo is made of smooth and galvanised steel sheets, therefore there is little dust build-up on the walls and low friction during emptying. Strong silo walls (up to 1.5 mm) and external stiffening frame ensure maximum stability and thus the longest possible service life.
- Easy flowing of the grain and no dust deposit because of smooth (straight) walls guarantee better storage quality. This prevents that conserved or moist grain solidifies in the silo.

