How are Screw Conveyers Manufactured?

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Discussion Overview

The discussion centers on the manufacturing processes of screw conveyors, specifically focusing on the techniques used to create variable fin lengths and the overall structure of the conveyors. Participants explore various methods and materials involved in the fabrication of these components.

Discussion Character

  • Technical explanation, Exploratory, Debate/contested

Main Points Raised

  • One participant suggests that screw conveyors are likely modeled using 3D software and then cut using laser or plasma techniques, followed by bending and welding of flat parts.
  • Another participant agrees with the idea of using flat parts that are bent and welded together.
  • A different viewpoint indicates that the screw blade is typically roll formed from strip or coil and then welded to a shaft.
  • In response to a question about the body of the conveyor, a participant describes it as being made from a welded tube, a cone, and a cap, with the possibility of the cone being made from one or two pieces, joined by welding.
  • There is a mention of visible bend lines on the cone, suggesting it was made from a flat sheet, though the exact method remains uncertain.

Areas of Agreement / Disagreement

Participants generally agree on the use of flat parts and welding in the manufacturing process, but there are differing opinions on the specifics of how the body and cone are constructed, indicating that multiple views remain on the topic.

Contextual Notes

There are unresolved questions regarding the exact methods used for creating the cone and the implications of using one or two pieces for its construction. Additionally, the discussion does not clarify the assumptions behind the proposed manufacturing techniques.

Who May Find This Useful

Individuals interested in manufacturing processes, mechanical engineering, or those specifically looking into the fabrication of screw conveyors may find this discussion relevant.

kateman
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Hello,

Does anyone have any idea how the screw conveyers in these photos would be manufactured? http://www.bwsinclair.com/Products/Live%20Bin%20Bottoms.htm

It's the variable fin length that I don't understand - could this be extruded? Any clue how it would/could be done?

Thanks for your help :)
 
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Most likely modeled using 3D software, then laser or plasma cut based on flat patterns created by software. Finally, flat parts are bent/ formed and welded together.
 
My first thought was the same as tvaavavannnanad's: flat parts, bent and welded.
 
The screw blade is usually roll formed from strip or coil then welded to a shaft.
 
Thanks everyone for your insight- that does make a lot of sense :)

Out of interest, if they are made separately, how do you think the body may have been created?
 
Assuming that you mean the middle photo:
The body is made from a tube (purchased welded tube), a cone and a cap welded together.
The tube appears to extend full length through the cone (provides a straighter final part).
There are visible bend lines on the cone that suggest it was made from a flat sheet.
Note sure if they made the cone from one piece or two; may be possible to make from one, likely easier to make from two and have them joined with weld.
Get your grinder out.
 

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