Design and fabrication of a cotton delinter machine for utilizing linters as fuel cell membrane material and seed recovery/ Krissy Claire Dela Cruz, Sean Angelo P. Lumaguip, Jhon Carlo B. Mancilla, Kayla Mae P. Pedaza, Arabella Maxine G. Ramos, and Isaac Jacob L. Rivera.--

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 focused on designing and fabricating a delinter machine to address the
inefficiencies, safety hazards, and high labor costs associated with manual cotton seed
delintering. The machine was developed to enhance production rates, reduce processing
time, and ensure the consistent quality of separated linters and black seeds. The core
mechanism utilizes a steel brush roller rotating at approximately 1,740 rpm to strip linters
from the fuzzy cotton seeds mechanically. An experimental approach was adopted to assess
the machine’s performance against traditional manual methods, focusing on output
volume, time efficiency, and labor requirements. Results demonstrated that the machine
could produce an average of 130.9 grams of linters from 1,500 grams of fuzzy seeds over
four 30-minute trials using only one operator. In comparison, manual delintering performed
by ten workers over four hours produced just 10 grams. With an optimal operating time of
25 minutes, the machine managed an average output of 125.3 grams, surpassing the target
output of 110 grams. The cotton delinter machine thus proved to be significantly more
efficient, cost-effective, and safer. It presents a viable solution for small-scale cotton
processors and supports future uses such as seed recovery and the utilization of linters in
fuel cell membrane production.