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1. Batch no:- B12
Presented by:
NAME: ROLL NUMBER:
(20FE5A0337)
(20FE5A0331)
(20FE5A0336)
(20FE5A0326)
M. Hudson Babu
K. Suresh Kumar
M. Prasad
K. Naveen
Under the Guidanceof
Sri.Y. SIV
ASANKARARAO, M. Tech.
AssistantProfessor

2. ◾ ABSTRACT
◾ INTRODUCTION
◾ LITERATURE
◾ OBJECTIVES
◾ METHODOLOGY
◾ RESULT
◾ CONCLUSION
◾ REFERENCE

3. ◾ Plastic wastes are becoming extremely threatening to the environment due to their high quantities
generated which pose serious harm to both the environment and its inhabitants. This study explores
various approaches to recycling plastic wastes into new products. In view of this problem, a study is
carried out for the design of shredding machine to obtain small wastes to help people to be dedicated
to the recycling industry. A shredding machine is intended to decrease huge strong material items into
a littler volume or little pieces. The plastic shredding machine crushes used plastic and helps in
municipal waste management, hotel and canteens waste management and disposal. The machine is
proposed to be designed using locally available raw materials, that will serve the purpose of shredding
plastic and reducing considerable volume of products such as used and empty one-liter bottles into
small pieces which make it cheap and easy to maintain and repair where it is made for reducing cost
of processing and transportation. The aim is to design a low cost plastic shredding machine and
recycling the waste of plastic materials.

4.  plastics can be converted into raw materials by utilizing an appropriate mechanical technology such
as shredding . The second step is melting and finally converting to new products. The shredder blade
plays the major role in the plastic shredder machine.
 Plastics are one of the most essential engineering materials that used in various applications. They are
used in the form of sheets, bottles, packages, pipes and other purposes, such as for holding and
packaging foods and drinks.
 A Shredder can have single shaft, two shafts or four shafts according to the types of materials to be
shred.
 This rapid increase of plastic consumption and demand in the world today is the main factor of land
and water pollution. However, as ocean covers 73% of the earth’s surface, usually, pollution in land
tends to end up in ocean.

5. Sl. No Name Year Title Results
1 Aravinth kumar Dec,2018 Design and Fabrication of plastic
shredder machine for clean
environment
If the machine is well maintained
,its durability is guaranted and its
maintenance cost is also low
when existing machines
2 Anas Mar- Apr,2021 Design and fabrication of shredding
machine used for plastic
Torque = 1000Nm
Twist angle =0.42
At 50 rpm = 53.33%LDPE
Particle size = 7.51mm in 2 min
3 Prof.G .E Kondhalkar May,2020 Case study and development of
plastic shredding machine
He identified that in recycling
process of plastic waste required
low energy to compact sort of
plastic waste it reduce the
process time in industry

6.  Design of plastic machine with low
cost
◾ To check the output at differents RPM

7. DESIGN OF PLASTIC SHREDDING MACHINE PARTS IN 3D MODELING
 The very basic and important step was to study the basic of the shredder machine. It included
the Machine components are Cutting tool, Shaft, Gears, Hopper, Bearing, Slides, Frame,
Motor, Hexagonal bush, Gear box. The components as per required dimensions will be
designed.
 The whole machine parts were designed by using SOLID WORKS.

8.  PET(PolyethyleneTerephthalate)
 Mineral water bottles.
 Fruit juice containers.
 Cooking oil bottles.
 PVC (Polyvinyl Chloride)
◾ Trays For Sweets.
◾ Plastic Packing (BubbleRoll).
◾ Food Fossil .
 HDPE(High Density Polyethylene)
◾ Milk Jugs.
◾ ClingingAgents.
◾ Shampoo bottles.
 DPE(Low-Density polyethylene)
◾ Crushed bottles.
◾ Shoppingbags.
◾ Highly-resistance Sacks.

9. Sr.No Part Name Material
1 Hopper MildSteel
2 Pulley Cast Iron
3 Belt Leather
4 Gear N8 Steel
5 Bearing StainlessSteel
6 Shaft MildSteel
7 Blades N8 Steel

10. ◾ A multi-point cutting tool contains more than
two main cutting edges that simultaneously
engage in cutting action in a pass. Sometime,
cutters with two cutting edges (more than one)
are also considered multi-point cutting tools
(instead of considering it as a double point
cutter). The number of cutting edges present in
a multi-point cutter may vary from three to
few hundreds. Since cutting edge appears at
the intersection of rake surface and flank
surface, so a set of rake surface and flank
surface also exists for each cutting edge.
◾ Inner diameter : 45mm
◾ Outer diameter : 75mm
◾ Thickness :10mm
Fig:1 Cutter

11. ◾ The shredder shaft is a rotating part housed in
the shredder chamber and it is equipped with
knife-edged rings. This knife-edge rings allow
shredding of the waste plastic materials to be
possible as it rotates against another fixed shaft
in the chamber
◾ Hexagonal Diameter(D1): 45mm.
◾ Diameter (D2)
◾ Diameter(D3)
◾ Length(L1)
:25mm.
:10mm.
200mm
Fig:2 Shaft

12. ◾ A gear is a rotating circular machine part having cut
teeth or, in the case of a cogwheel or gearwheel,
inserted teeth which mesh with another toothed
part to transmit torque and speed. The basic
principle behind the operation of gears is analogous
to the basic principle of levers. A gear may also be
known informally as a cog. Geared devices can
change the speed, torque, and direction of a power
source. Gears of different sizes produce a change in
torque, creating a mechanical advantage, through
their gear ratio, and thus may be considered a
simple machine. The rotational speeds, and the
torques, of two meshing gears differ in proportion
to their diameters. The teeth on the two meshing
gears all have the same shape.
◾ Diameter of bigger gear :100mm.
◾ Diameter of smaller gear :50mm.
◾ Inner diameter of both gears :12mm.
Fig:3 Gear

13. ◾ The hopper is made from mild steel of thick
sheet metal plate
◾ (0.22 mm). It is the unit which receive and
accumulate waste
◾ plastics while shredding is in progress. The
upperpart is
◾ framed with angle bar (0.33mm) for rigidity. It
is the unit
◾ where plastics are feed to the shredding
chamber. It has a
◾ truncatedcone shape.
◾ volume = 13 [A1+A2+(1+2)^1/2]*H
◾ Where (A1) Area of top 9000mm, (A2) Area
of bottom22500mm
◾ Height 300mm.
Fig:4 Hopper

14. ◾ A bearing is a machine element that constrains
relative motion to only the desired motion, and
reduces friction between moving parts. The
design of the bearing may, for example, provide
for free linear movement of the moving part or
for free rotation around a fixed axis; or, it may
prevent a motion by controlling the vectors of
normal forces that bear on the moving parts.
Most bearings facilitate the desired motion by
minimizing friction. Bearings are classified
broadly according to the type of operation, the
motions allowed, or to the directions of the loads
applied to the parts.
◾ Inner diameter 26mm
◾ Outer diameter 102mm
◾ Thickness 12mm
Fig:5 Bearing

15. ◾ It is used to support and holding the shaft and
geras Where the shaft is insert in the holes of
the slide where the shaft is freely rotationThe
diameter of the slide is the equal to the shaft
diameter.
◾ Diameter of two wholes 18mm.
Fig:6 Slides

16. ◾ The frame structure of the machine. All the
machine components are mounted on this
frame. In order to get the required strength,
two plates (Bearing support blades) are fixed
with the help of nuts and bolts
◾ Length of the rod above 3feet
◾ Area of the base plate is 100*200mm
◾ Thickness of plate is 5mm
Fig: 7 Frame

17. Power 0.75KW
Horsepower 1 HP
Speed 1440rpm
No. of Poles 4
Voltage 415V
Fig:7 Motor

18. ◾ The Hexagonal Bush has been designed and
cut to utilise the hexagons 6 points feature
which when installed provide an anchor
against torsional load. It is designed to be
riveted or peened over the sheet metal to
provide a strong and reusablethread assembly.
Fig:8 Bush

19. ◾ The purpose of a gearbox is to increase or
reduce speed. As a result, torque output will be
enclosed drive is a speed
the inverse of the speed function. If the
reducer (speed
output is less than speed input), the torque
output will increase; if the drive increases
speed, the torqueoutput will decrease.
Fig:9 Gear box

20.  Plastic can be recycled
 We must re use the crushed flakes
 Reductionof plastic waste
 Environmental conservation

21. ◾ As we made the design of plastic shredding
machine in 3D modeling with the help of
SOLID WORKS as per the requirements and
the necessary calculations were also carried
out as shown in figure.
Fig:10 Shredding machine

22. After the preparation of the model we conclude that atomize machine is best choice to shred the plastic
waste.we design the machine considering the varied factors into consideration . The machine is
formed for little businessman therefore the work administered by the machines is a smaller amount.

23. ◾ 1. International Journal Of Research, Paper on Fabrication of Paper and Plastic Shredder Machine,
International Conference on Innovation and Research in Engineering Science andTechnology, 24 Feb
2018
◾ International Journal of Waste Resources, Paper on Development of Plastic Bottle Shredding
Machine, N.D Jadhav, Maharashtra, India.
◾ Research Paper onDesign and FabricationRecycling of Plastic System Published in International
Journal of Scientific and Engineering Research, Volume 7, Issue 5, May 2016 ISSN 2229-5518.
Design Considerationof Plastic Shredderin Recycling Process
◾ International Journal of Plastic Waste Shredder Machine, Research Paper on Design and Fabrication
of Plastic Waste Shredder Machine, SNS College of Engineering, Coimbatore.
◾ World Academy of Science Engineering and Technology International Journal of Industrial and
Manufacturing Engineering Volume 10,No 11 , 2016 6. Shilpi S, Monika S, et al., “PET Bottle
Houses.” InternationalJournal of Scientific Engineering and Technology (2013)2: 1243-1246.
◾ Metin E, Erozturk A, Neyim C “Solid Waste Management Practises and Review of Recovery and
Recycling Operationsin Turkey.” Waste management (2003)23: 425-432.