Cylindrical screw flight with hole pattern

Cylindrical screw flight with hole pattern manufactured for the food-/process industry. The flight blancs are laser cut and formed in our tool for processing screw flights.

What is the purpose to make holes in the screw flight?

1. The holes can drain liquid in case you transport a mixture of solids and fluids
2. The size of the holes shall drain liquid and avoid blocking from the solids – requires process knowledge

Sectional screw flights with holes are a special type of cylindrical screw flights. In BEMA we call such screw flights “special screw flights” because they require a detail design and more handling in the manufacturing process. See another example of a special screw flight here In BEMA we have design capabilitis to handle special screw flights. Design special screw flights requires engineering capabilities in combination with toolings to form the screw flights.

Examples of special screw flights

1. Ribbon screw flights – see an example here
2. Conical screw flights – see an example here
3. Screw flight with high outer diameter/pitch ratio – see an example here

In case you have a special screw flight design, BEMA can assist you in offer you a solution in a combination of design and manufacturing. We have manufactured cylindrical screw flights up to a diameter of Ø2500. BEMA has a year long experience in manufacturing special screw flights to OEM customers.

The advantage to get special cylindrical flights from BEMA

1. Mounting time is decreased
2. Cylindrical screw flights that fit requires much less welding time
3. As a combination of 1. and 2. you will gain effieciency in your own manufacturing process and improve your value chain