The solution to storing bulk materials is predominantly a silo, they have been in use in one form or another since around the 8th century BC; the most common application is found within the agricultural industry. Technological development has seen the humble silo historically being made from wood, leather and stone refined into sophisticated engineering designs utilising modern construction materials that are much more durable and easier to maintain.
Presently silos are predominantly constructed from either aluminium, mild steel, cromweld or stainless steel. The nature of the end use for the storage silo can dictate what it will be made from. Heavy industry tends to favour the popular mild steel. Paper mills, water treatment plants, oil and mining sectors are all regular customers who require mild steel silo fabrications. With the correct finishing and treatment, mild steel silos can endure a long functional life, minimising maintenance costs and any repair work.
Stainless steel silos are heavier and fulfil roles where contamination elimination and safe storage of perishable goods are required. Chemicals, wheat, water, juice are just a few examples of what is stored inside these units. The beverage, organic produce refinement and food manufacturing industries are amongst the widest groups of customers requiring stainless steel solutions. It was mentioned that chemicals can be stored in stainless steel, the higher grades of stainless material and the construction method/finish of the silo can strongly resist, pitting, crevice and stress forms of corrosion.