Design of Pedal Powered Atta Chakki Based on Engineering Properties of Selected Food Grains

Yallappa D

College of Agricultraul Engineering, UAS, Raichur, Karnataka, India.

P F Mathad

College of Agricultraul Engineering, UAS, Raichur, Karnataka, India.

Ambrish G

College of Agricultraul Engineering, UAS, Raichur, Karnataka, India.

Udaykumar Nidoni

College of Agricultraul Engineering, UAS, Raichur, Karnataka, India.

Roopa Bai

College of Agricultraul Engineering, UAS, Raichur, Karnataka, India.

Kavan Kumar V *

College of Technology and Engineering, MPUAT, Udaipur, Rajasthan, India.

Ravi Y

ICAR - National Research Centre on Seed Spices, Ajmer, Rajasthan, India.

*Author to whom correspondence should be addressed.


The study was aimed to determine engineering properties of food grains which play an important role in the design of functional componenets of pedal-operated flour mill. The crops namely rice, pigeon pea, wheat, sorghum, and maize were selected for the study. Pedal operated flour mill comonents were designed and developed based on the variation of the engineering properties viz., size, shape, aspect ratio, volume, geometric mean diameter, sphericity, bulk density, true density, density, porosity, weight of 1000 grains, angle of repose, static coefficient of friction and hardness. These properties were determined and considered for the design of functional components viz., design of hopper, selection of drive mechanism, design of supporting frame, selection of grinding stones, power transmission, processing unit, safety, and ergonomics for easy and effective operation were made. The engineering properties are of great importance towards proper design, efficient process and equipment development. The developed pedal-operated flour mill is suitable for grinding almost all cereals and pulses to produce Rawa, Flour (Atta), and Dhal for human consumption and also for producing poultry/fish feed by grinding agro by-products and wastes.

Keywords: Engineering properties, pedal operated flour mill, theoretical consideration, milling of grains, atta chakki

How to Cite

Yallappa D, Mathad , P. F., Ambrish G, Nidoni , U., Bai , R., Kavan Kumar V, & Ravi Y. (2024). Design of Pedal Powered Atta Chakki Based on Engineering Properties of Selected Food Grains. Archives of Current Research International, 24(4), 19–29.


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