food storage hopper chemical storage FOOD STORAGE In the area of "food storage" silos, Columbian TecTank is the world’s largest manufacturer of bolted and welded factory storage silos . Welded food storage silos are available in carbon steel, aluminum or stainless steel. Different coatings are available on the food storage tanks, such as epoxy coatings, which are food grade, and acrylic enamel finishes. Columbian TecTank™ food storage silos are used extensively in the milling, baking and food processing industries. Our FDA and USDA compliant coatings for carbon steel are often specified by major food producers, as is our stainless steel and welded aluminum silos. Columbian TecTank™ welded silos, skirted to grade, are suitable for most dry bulk food materials. Columbian TecTank™ bolted silos, which can be positioned on structures, built on legs or skirted, are also suitable to many dry food materials. For grain storage, Columbian TecTank™ produces bolted silos and XL tanks. Columbian TecTank™ silos are used extensively in the milling, baking and food storage industries. Our FDA and USDA compliant coatings for carbon steel are often specified by major food producers, as is our stainless steel and welded aluminum silos. Columbian TecTank™ welded silos, skirted to grade, are suitable for most dry bulk food materials. Columbian TecTank™ bolted silos, which can be positioned on structures, built on legs or skirted, are also suitable to many dry food materials. For food storage, Columbian TecTank™ produces bolted silos and XL tanks.