Screw auger in stainless steel with double thread and large pitch. This screw auger is a great example on BEMA’s capabilities to manufacture complicated screw rotors. This screw rotor require all our skills to manufacture a product satisfying the customer needs:
Look on the pictures and see how we are able to make the screw flights fit. Learn more about screw rotors from BEMA.
When manufacturing such type of screw augers it is necessary to have a close cooperation between the people who manufacture the screw flights and the black smith who are mounting and welding them to the shaft. The double thread require that the screw flights are manufactured with a precise pitch in order to get an acceptable result of the auger.
This auger combines a large outer diameter with a relatively small inner diameter, a large pitch ratio of about 1.2, and double-threaded flights. Producing these elements with precision requires advanced forming, welding, and alignment skills.
Double-threaded flights demand extremely accurate pitch manufacturing. BEMA coordinates closely between the team forming the flights and the blacksmiths who mount and weld them, ensuring both threads align perfectly along the shaft.
A complete drawing with all necessary measurements is required. BEMA then prepares a production drawing, which may differ slightly to meet manufacturing requirements. Once both parties agree on the final version, production can begin.
Manufacturing screw augers often requires adjustments to ensure structural integrity, weldability, and precise pitch. BEMA incorporates these practical considerations into the production drawing while maintaining the customer’s functional requirements.
Check the pictures to see the different stages of the production process. The screw flights are carefully mounted to the inner tube, which has a high outer-/inner diameter ration.
After mounting the screw flights, the auger is 100% TIG-welded. Check the pictures to see the quality of the weldings. The screw rotor is an example of great craftsmanship. This type of product require skilled craftsmen with years of experience to obtain a good and accepted product.
| Applied steel in product | Stainless steel |
|---|---|
| Product type | Screw rotor |
| Surface treatment | Stainless steel – acid pickled |
| Transported material | Food ingredients |
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E-mail: info@bema.as
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