Live screw bottom designed for flake ice and manufactured afterwards in BEMA. The application is the bottom of a silo containing the daily use of flace ice in a fish production factory. The silo receives flake is from the ice machines which can fill the silos during the night. The system is afterwards able to supply the factory with flake ice during the day, without requiring a large amount of ice machines to fulfill the daily demand.
In this application the screw feeders deliver the flake ice to a transportation screw in the middle of the bottom. This means that this screw conveyor acts as a dosing screw conveyor, because it is 100% filled. Placing the outlet screw in the middle of the live screw bottom has also the advantage:
Designing a live screw bottom requires experienced engineering knowledge. In BEMA we have our own design department with engineers and technicians with long years of experience of designing screw feeder bottom applications. Before making the final layout of the storage system with a screw bottom, we recommend to contact us.
A live screw bottom is designed to ensure reliable discharge of flake ice from a storage silo. It prevents bridging, secures continuous flow and enables the factory to use ice throughout the day without requiring excessive ice‑machine capacity.
Flake ice tends to form bridges and block material flow. A fully covered screw‑feeder bottom eliminates this by keeping the ice moving uniformly. It also allows precise dosing, which is essential in fish‑processing environments where ice must be supplied consistently and hygienically.
In this design, the screw feeders deliver ice to a central transport screw that operates as a dosing screw because it runs 100% filled. Placing the outlet in the middle ensures even emptying, prevents material buildup at the outlet end and maintains a level ice surface inside the silo.
Beyond flake ice, live screw bottoms are effective for materials that bridge easily or require controlled discharge, such as wood chips, wood pellets and lightly sticky powders. This makes the solution versatile across multiple bulk‑handling industries.
| House | Trough |
|---|---|
| Industry | Food and beverage processing |
| Applied steel in product | Stainless steel |
| Product type | Screw conveyor |
| Surface treatment | Stainless steel – acid pickled |
| Transported material | Bulk material |







BEMA A/S
Bredholm 3
6100 Haderslev
Denmark
CVR: 15525991
Contact
Phone: +45 74 52 16 21
E-mail: info@bema.as