Conveyor belts are used widely in industry to transport materials. They consist of an under layer called the carcass for strength and an over layer called the cover. Belts are made of materials like rubber, plastic, or cotton. The type of belt used depends on the size, weight, and shape of items being moved. Benefits of belt conveyors include their ability to handle high capacities over long distances economically. They are suitable for abrasive, wet, dry, or dirty materials. However, belts may require higher tension and are susceptible to issues with sticky materials.

1. PRESENTED BY-
ANKIT SUKHWAL
B.E Final year
C.T.A.E. Udaipur
Guided by-
Dr. S. Jindal Sir

2.  Conveyor belts are used in a wide variety of
material transport applications such as
manufacturing, food processing, and heavy
industry.
 Belt- are the most common type of conveyors
and are very versatile.

4.  The belt consists of one or more layers of
material.
◦ An under layer-to provide linear strength and shape
called a carcass(polyester, nylon and cotton)
◦ An over layer called the cover. (rubber or plastic
compounds)

5.  Belts are typically made from cotton, canvas,
Kevlar, nitrile, nylon, polyester,
polyurethane/urethane, PVC, rubber, silicone,
steel cord, Teflon, wire mesh or weave.
Rubber Interply
Top Cover
Bottom Cover

7. The actual belt of a system is determined on
what the conveyor is going to be used for.
Items to consider when choosing a belt.
 Size of items being moved
 Weight of items
 shape of items
This will help decide what belt to use so
coefficients of friction can stay low so the
motors wont be over worked.

8.  Flexibility
 Transverse rigidity
 Low mass per unit length
 High strength
 Simplicity and inexpensive
 Longer life
 Should not stretch under normal working
stresses ,i.e., low relative elongation.
 Wear resistant
 Fire resistant

9.  Belt speed
 Belt width
 Absorbed power
 Gear box selection
 Drive pulley shaft

10. • Agriculture
• Construction - heavy building materials
• Food and beverage processing
• Forestry - logging, sawmill, paper pulp, etc.
• Mining and quarrying
• Factory production line

12.  Belt conveyor can be used for abrasive, wet,
dry, sticky or dirty material.
 Higher capacity can be handled than any
other form of conveyor at a considerably
lower cost per tonne kilometre.
 Longer distances can be covered more
economically.
 It can be horizontal, incline or decline or
combination of all.

13.  The belt needs higher initial tension.
 Higher elongation of the belt (4% elongation
may take place at the working load).
 Conveying of sticky material is associated
with problems of cleaning and discharge
causing poor productivity.

14.  Width of belt (mm)
 Type of carcass (fabrics)
 Rated breaking strength (n/mm)
 Number of fabric plies
 Top and bottom cover thickness (mm)

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16.  Belt Conveyor systems can improve efficiency
and help to reduce repetitive lifting and
carrying.
 Many industries use Belt conveyor systems to
transport raw materials and products through
the stages of a process or to and from
storage.

17.  Conveyor Handbook by Fenner Dunlop (Jun 2009)
 Materials Handling Handbook by David E. Mulcahy ,
McGraw-Hill, 1999
 http://intinno.iitkgp.ernet.in/courses/951/wfiles/1
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