Conical screw flights in duplex steel

BEMA has the engineering capabilities to design and manufacture conical screw flights in all well known steel qualities. Conical screw flights need to be designed precisely and manufactured in 360° BEMA delivers customer designed screw flights as an OEM product.

How is a set of conical screw flights handled?

1. We design the screw flight in accordance with customer drawings
2. We handle the material purchase
3. We cut, bend and mount the screw flights to ensure that it fits

BEMA has our own design department, and we are able to design a great varity of screw flights. We have a year long experience in designing conical screw flights to a varity of different industries. For customers it is important the screw flights fits and easy to mount. This reduces the welding time and make the total product more competitive. An important point about screw flights in general is to look on the mounting time and welding time. Screw flights of poor quality takes much more time to manufacture compared to screw flights which obey a minimum of specifications. If you have different conical sets of screw flight you shall be prepared that it might take 1-2 trials before you get the right working solution for you. In BEMA we keed all drawings of flight blancs in our drawing system on unique item no. This means that we can easily re-produce the screw flights, when they are finally approved, so you get a stable and continously working product. Contact BEMA in case  you have one or a varity of products where you need completed sets of screw flights. See our general page for screw flights

FAQ – Conical Screw Flights in Duplex Steel

1. What are conical screw flights used for?

Conical screw flights are used in screw conveyors where material flow needs to be controlled, compressed, or regulated. Their tapered geometry allows for gradual movement and optimized transport efficiency, making them suitable for a wide range of industrial applications. BEMA designs these flights for customers across many industries, ensuring precise fit and reliable performance .

2. Why choose duplex steel for conical screw flights?

Duplex steel offers high strength, excellent corrosion resistance, and long service life. These properties make it ideal for demanding environments where durability and resistance to wear are essential. BEMA manufactures conical screw flights in all well‑known steel qualities, including duplex, to match the customer’s specific requirements .

3. How does BEMA ensure precise manufacturing of conical screw flights?

Conical screw flights must be designed and produced with 360° accuracy. BEMA handles the full process: engineering, material purchasing, cutting, bending, and mounting. This ensures that each flight fits perfectly and is easy to install, reducing welding time and improving overall competitiveness for the customer .

4. What challenges can occur when working with conical screw flights?

Because of their geometry, conical screw flights may require one or two trial adjustments before achieving the perfect fit. Poor‑quality flights can significantly increase manufacturing and welding time, which is why precise engineering is essential .

5. Can BEMA reproduce conical screw flights for future orders?

Yes. BEMA stores all flight blank drawings under unique item numbers, allowing fast and consistent reproduction once a design is approved. This ensures stable, continuous performance and easy reordering for customers.