International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 13 Issue: 01 | Jan 2026
p-ISSN: 2395-0072
www.irjet.net
FABRICATION OF PLASTIC BOTTLE SHREDDING MACHINE KUNALEN.RG1, LAKSHMAN NAVEEN.C2, MADHESH BALA.R3, MANIKANDAN.A4 1,2,3,4 III Year Diploma Mechanical Engineering, Lakshmi Ammal Polytechnic College, Kovilpatti, Tamil Nadu, India
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - This project, titled “Fabrication of Plastic Bottle 3. Aim of the Project Shredding Machine,” aims to reduce plastic waste by shredding plastic bottles into small pieces for easy recycling. The machine uses an AC motor, hopper, gears, and rotating cutting blades to cut the bottles using the principle of shearing. When bottles are fed through the hopper, they pass through the cutter blades and are shredded into smaller pieces, which are collected for further processing. This lowcost and efficient machine helps improve waste management and supports environmental protection.
The objective is to create an affordable, spaceefficient, and easy-to-use plastic bottle shredding machine utilizing basic mechanical components like shafts, cutters, a belt, and a motor.
4. Objectives 1. To examine various shredding mechanisms employed in industrial applications.
1. INTRODUCTION
2. To engineer a shredder blade system that is both lightweight and robust.
Plastic waste has emerged as one of the most significant environmental challenges globally. Each day, countless plastic bottles are discarded after their use. These bottles require hundreds of years to decompose, resulting in land and water pollution, as well as posing threats to wildlife. Consequently, recycling and waste management have become critically important.
3. To construct the machine utilizing materials those are readily available locally. 4. To evaluate the strength and efficiency of the cutter and shaft.
Recycling firms favor plastic in small chip form due to its ease of melting, transportation, and reuse. Nevertheless, the manual cutting of bottles is both time-consuming and hazardous. This situation creates a demand for a straightforward, cost-effective, and efficient plastic bottle shredding machine suitable for small industries, educational institutions, and rural communities.
5. To minimize the dimensions of plastic bottles to facilitate recycling.
This project aims to design and construct a compact machine that can safely and efficiently shred plastic bottles into small fragments.
5. Literature Review
6. To ensure a design that prioritizes user safety. 7. To develop a machine that demands minimal maintenance and is user-friendly.
A number of researchers and engineers have created shredding mechanisms to address the issue of plastic waste. Their research emphasizes:
2. Problem Identification Plastic bottles take up considerable space because of their design and rigidity. Gathering and moving them in their entirety necessitates additional room, thereby raising the recycling operational expenses. Further-more.
The necessity for reducing costs in waste recycling equipment The significance of blade design, which has a direct impact on the quality of the output
• Industrial shredders come with a high price tag
Issues associated with including slippage
• They demand significant power
The benefits of gear-driven mechanisms
• Their weight is excessive for small-scale applications • Maintenance costs are high
The critical nature of slow-speed shredding, which minimizes noise and enhances cutting torque
Consequently, there is a demand for an economical shredding solution that caters to smaller users.
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belt-driven systems,
This project is inspired by these findings and aims to create a simplified and cost-effective shredding solution.
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