Design and fabrication of a semi-automatic potato cleaning and sorting machine/ Justin S. Batang, Lynette Pauline D. Brofar, Victor Eduard N. Cabus, Raphael D. Suanco, and Christian E. Torres, .--

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Batang, Justin S [author]

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TextPublication details: Manila: Technological University of the Philippines, 2025.Description: xii, 134pages: 29cmContent type:

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BTH TJ 145 B76 2025

Dissertation note: College Of Engineering.-- Bachelor of science in mechanical engineering: Technological University of the Philippines, 2025. Summary: This study focuses on overcoming the challenges of manual post-harvest handling by creating a semi-automated machine for cleaning and sorting freshly harvested potatoes. The machine is designed to reduce labor demands, speed up processing, and ensure consistent product quality for farmers. It processes 25 kilograms of potatoes every 15 minutes and consists of a feeder section, cleaning assembly, and size grader. The feeder allows batch feeding and removes small potatoes under 3.81 cm. The cleaning unit uses rotating brushes and rollers to achieve cleanliness suitable for public markets. The grading system sorts potatoes into four categories—Extra (X), Triple Extra (3X), Extra Large (XL), and Super Extra Large (SXL)—with an 83.18% sorting efficiency. Testing showed the machine cleans and sorts 25 kilograms in about 4 minutes per batch, significantly faster than the target. It achieved 97.66% separation efficiency in the feeder and consistent sorting accuracy across multiple trials. Feasibility assessments confirmed the machine is user- friendly, compact, effective at debris removal, and easy to disassemble. Economic analysis indicates it is a cost-effective investment with strong potential to modernize post-harvest processing in potato farming. Overall, the prototype met its design objectives and provides a practical solution to boost productivity in potato agriculture.

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Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TJ 145 B76 2025 (Browse shelf(Opens below))	c.1	Not for loan		BTH0006438

Bachelor's thesis

College Of Engineering.--
Bachelor of science in mechanical engineering: Technological University of the Philippines,
2025.

Includes bibliographic references and index.

This study focuses on overcoming the challenges of manual post-harvest handling
by creating a semi-automated machine for cleaning and sorting freshly harvested potatoes.
The machine is designed to reduce labor demands, speed up processing, and ensure
consistent product quality for farmers. It processes 25 kilograms of potatoes every 15
minutes and consists of a feeder section, cleaning assembly, and size grader. The feeder
allows batch feeding and removes small potatoes under 3.81 cm. The cleaning unit uses
rotating brushes and rollers to achieve cleanliness suitable for public markets. The grading
system sorts potatoes into four categories—Extra (X), Triple Extra (3X), Extra Large (XL),
and Super Extra Large (SXL)—with an 83.18% sorting efficiency. Testing showed the
machine cleans and sorts 25 kilograms in about 4 minutes per batch, significantly faster
than the target. It achieved 97.66% separation efficiency in the feeder and consistent sorting

accuracy across multiple trials. Feasibility assessments confirmed the machine is user-
friendly, compact, effective at debris removal, and easy to disassemble. Economic analysis

indicates it is a cost-effective investment with strong potential to modernize post-harvest
processing in potato farming. Overall, the prototype met its design objectives and provides
a practical solution to boost productivity in potato agriculture.

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