Bin with inclined screw conveyor

Bin with inclined screw conveyor for intermediate storage of salt to be filled into salt spreaders during winter campaign. The application is completely manufactured in stainless steel to avoid corrosion from the salt. The bin is relatively large, and there is a built-in hat over the screw rotor to avoid material pressure on the auger. The bin solves to functions:

1. It is a temporarily storeage of salt
2. It transport the salt to a higher point

Since salt in this condition is easy flowing, the bin is manufactured with positive angles. There is a single screw conveyor in bottom. This is enough to transport the salt out of the bin.

What to consider, when you design a bin with a screw conveyor

1. Flowability of the product – is a single screw rotor enough to empty the bin?
2. Is there a risk for bridge building?
3. If there is a risk for bridge building consider a live screw bottom

Other example of a bin with a lifting screw conveyor

BEMA has many years of experience in designing different types of bins and hoppers in combination with screw conveyors. Every case has to be considered, and requires experienced engineering to make a good and workable solution. Besides the material consideration you should also look for:

• What is the physical size of the complete bin with a screw conveyor
• How shall the product be transported to the final site
• Is it necessary to separate the bin in different parts for easier transportation possibilities

BEMA can assist in these questions. We always recommend that you contact BEMA as early as possible in your planning process.

FAQ – Bin with Inclined Screw Conveyor

1. What is the purpose of a bin with an inclined screw conveyor

This type of bin is designed for temporary storage and controlled lifting of materials such as salt. It combines buffering capacity with efficient vertical transport, making it ideal for winter‑service operations where salt must be moved reliably to spreaders.

2. Why stainless steel is used for salt‑handling applications

The entire construction is made from stainless steel to prevent corrosion caused by salt. This ensures long service life, stable operation and minimal maintenance, even under harsh outdoor conditions.

3. What to consider when designing a bin with a screw conveyor

Key factors include the flowability of the material, whether a single screw is sufficient for emptying, and the risk of bridge building. If bridging is likely, a live screw bottom may be required. Designers must also consider physical size, transport logistics and whether the bin should be built in sections for easier delivery.

4. How BEMA ensures a reliable and customized solution

BEMA draws on extensive experience with bins, hoppers and screw conveyors to engineer solutions tailored to each case. Early involvement in the planning process helps secure the right design, optimal material flow and a practical installation setup.