Generally, free-standing and cylindrical silos are preferred for the economical and reliable storage of plastic raw materials in granule, powder, and flake forms. These silos can have volumes ranging from 1.5 to 25 m3. Intermediate storage silos are used to save space for companies facing space constraints within their facilities. They are manufactured using special alloy aluminum or SST-304 material to ensure durability against corrosion. Custom designs can be made to meet specific size and dimension requirements.