Development of a mobile coin-operated cabinet-style rice milling machine for san miguel bulacan farmers/ Ronald Jhared C. Castro, Jose Winford C. Cordero, Emilyn Mae B. Dela Cruz, Rhomela Paula O. Lagman, and John Carlo A. Yulo.--

Bachelor's thesis

College of Industrial Technology.-- Bachelor of engineering technology major in mechanical engineering technology with option in welding technology: Technological University of the Philippines, 2025.

Includes bibliographic references and index.

Rice Milling is a crucial post-harvest activity for farmers in rural areas like San Miguel and
Bulacan. These farmers face challenges, such as high milling costs, limited access to
commercial services, and financial barriers to owning milling equipment. To address these
barriers, the project study focused on the design, fabrication, testing, and evaluation of a
Mobile Coin-Operated Cabinet-Style Rice Milling Machine. Local materials were used to
construct the prototype, which features a compact design that is cost-effective, time-saving,
and user-friendly, allowing farmers to mill rice in small quantities on a pay-per-use basis,
eliminating the need for expensive equipment purchases. The machine is powered by a
single-phase motor and incorporates key features such as a built-in 2kg feed hopper, a
stainless-steel rice outlet, pulverized chaff output, a milling chamber, and a coin- operated
interface with multiple time-based settings. The prototype was evaluated by 50
respondents, including farmers, milling operators, mechanical expert faculty members, and
acquaintances. The evaluation considered five criteria: functionality, workability, safety,
aesthetics, and economic viability. The evaluation resulted in an overall mean score of 4.76
with a descriptive rating of “Highly Acceptable.” Based on these results, the project study
demonstrates that this rice milling machine can offer a sustainable and effective solution to
improve the productivity and profitability of farmers in San Miguel, Bulacan.