Design and Fabrication of Screw Conveyor Report Download

Design and Fabrication of Screw Conveyor Report Download

SCREW CONVEYORS are one of the oldest and simplest method of moving bulk material and consist primarily of a conveyor screw rotating in a stationary trough. Conveyors find application mostly in productive factories where transportation is fairly of continuous and uniform character, the individual loads being very high. Screw conveyors are compact, easily adapted to congested locations and can be mounted horizontally, vertically and inclined. Their supports are simple and easily installed. These versatile conveyors can be used to control the flow of material in processing operations which depend upon accurate batching or as a mixer, agitator or stirrer to mix and blending dry or fluid ingredients provide crystallization or coagulation action or maintain solutions in suspension.

Screw conveyors can be effectively sealed to prevent dust or fumes from escaping or dirt or moisture from entering. They can be jacketed to serve as a dryer or cooler, or furnished in a wide variety of materials to resist corrosion, abrasion or heat. Screw conveyors are used as a earth augers to dig past holes or to bore under highways for installation of culverts. They are also used extensively on threshing machines hay balers fodder blowers and many other farm machines.

Read more ; Design and fabrication of a screw conveyor


  • This manual is helpful in designing of screw conveyors using calculations in metric units.
  • Saving of labour and time.
  • To increase the output:With the help of conveyors more work can be done with a given floor space, blocks are avoided.
  • To utilize existing building for new purposes: Conveying plant enables two or more detached building to be connected together and used for several operations in proper sequence.
  • Reducing personal hazardous: The enclosing trough can be made tight enough to contain toxic dust and vapours.
  • Material in transit can be heated or cooled by jacketing the trough.
screw conveyor project
screw conveyor project


Inclined screw conveyors, in general handle products that can be conveyed in horizontal screw conveyors. Being compact, say contained and fully enclosed they can be readily applied in congested areas. Feature insuring sanitation and ease of cleaning are available. For inclines of about 20 degrees or less, conveyor screws of regular pitch operating in troughs are usually employed. Inclines above 20 degrees ordinarily require the use of short pitch conveyor; screw operating in a tabular or shrouded trough.

A vertical screw elevator is a unit that conveys material vertically. These units can satisfy many conveying problems and have the further advantage of being compacted, requiring less space than other forms of elevating equipment. These units find it difficult to handle materials containing large lumps and materials that are very dense or extremely abrasive.

The key to any successful screw design is, firstly through a thorough under standing of the characteristics of the material to be handled.
Secondly the action of a screw conveyor is important to understand. It is most important to have thorough knowledge of, and understanding of the way material flows and effects of variation in the flow.
Capacities are usually given in TPH. Also the apparent density in the material could vary. The conveyor size and speed must be based on maximum volume and the apparent conveyed density of the material. Surge loads should be taken in account.

This project titled “DESIGN AND FABRICATION OF A SCREW CONVEYOR ” explains the design and manufacturing of a screw conveyor, basic application of which is to transport cement for a distance of one meter horizontally.
This project gives detailed information about the various factors that me taken into account before designing and selecting different components, which form a part of screw conveyor, it also gives the details of be assembly as per the standard procedure
employed in the industry. Moving ahead from designing stage this project gives a detailed count of the fabrication of the screw conveyor, its installation and its maintenance for a better performance and a longer life. Finally the project highlights the major advantages of the screw conveyor and its superiority over other conveyor designs.

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Sachin Thorat

Sachin is a B-TECH graduate in Mechanical Engineering from a reputed Engineering college. Currently, he is working in the sheet metal industry as a designer. Additionally, he has interested in Product Design, Animation, and Project design. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos.

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