The cold roll forming line is specially offered for constructing spiral steel silo. The steel coil is decoiled to deliver the steel plate to the forming machine. Then the steel plate will be processed into the shape required. Subsequently, the bending machine is employed for bending and plate edge processing, to form a spiral strip with the width from 30 to 40mm. The spiral strip produced with the grain silo forming equipment is used to strengthen the silo structure.

The cold roll forming machine can be applied for bending two kinds of materials for on-site silo construction. The silo roof is assembled on ground, requiring no scaffold or other auxiliary equipment. The cold roll forming line operates at the speed of 3 to 5 meters per minute, resulting in short construction period.

 Silo Features
1. The silo constructed with the steel silo making machine has optimal overall performance and long lifespan. The seaming thickness is 5 times the thickness of the base material. Apart from the strengthened load carrying capacity, the silo has the advantage of good stability and long lifespan over other product.

2. Optimal sealing performance and wide applications. Our cold roll forming line provides seaming with good airtightness. It helps prevent the granular and powdery grain stored being influenced by the humidity outside the silo. In addition, the silo constructed can satisfy the technological requirement for disinsection or fumigation. Application for storing liquid is also available.

3. Short construction period and low construction cost. It only takes about 5 days to construct the 1000 ton silo with our cold roll forming line. The silo weight is just one-sixth that of the cement silo. Therefore, the silo construction cost is reduced, accordingly.

 4. Small land occupation, good adaptability and easy maintenance. The height and diameter of the spiral steel silo is selectable within a large range. The space between the silos can be less than 50m.

Technical Parameters of Cold Roll Forming Line