Journal of Agricultural Machinery
with the collaboration of Iranian Society of Mechanical Engineers (ISME)

Investigation of a Motorised Integrated Cassava Slicing and Chopping Machine

Articles in Press

Document Type : Research Article- En

Author

A. Erchafo Ertebo

Ethiopian Institute of Agricultural Research, Melkassa Agricultural Research Centre, Department of Agricultural Engineering, Adama, Ethiopia

https://doi.org/10.22067/jam.2026.96509.1446
Abstract
A study was carried out to investigate a motorised, integrated cassava tuber slicing and chopping machine. The integrated machine was investigated in terms of key performance metrics at three levels of speeds (950, 1150, and 1350 rpm for chopping; 300, 450, and 600 rpm for slicing) and two levels of feed rates (10 and 15 kg min-1 for chopping; 5 and 10 kg min-1 for slicing). According to the investigation findings, the maximum chopping capacity of 229.7 kg h-1 was recorded at an operating speed of 1350 rpm and a feeding rate of 10 kg min-1. The maximum chopping efficiency of 82.1% was obtained at an operating speed of 1350 rpm and a feeding rate of 15 kg min-1, whereas the minimum mechanical loss of 9.06% was found at an operating speed of 1350 rpm and a feed rate of 15 kg min-1. Based on the investigation results, at 600 rpm rotational speed and 5 kg min-1 feed rate, the greatest slicer capacity of 114.8 kg h-1 was noted. At 600 rpm rotational speed and 10 kg min-1 feed rate, the greatest slicer efficiency of 71.6% was obtained. At this speed and feeding rate, the smallest loss of 11.06% was observed. Due to the low-key performance criteria recorded during the research, optimisation of the drum and hopper of the chopping unit, as well as the hopper and blade geometry of the slicing unit, is recommended.

Keywords

Capacity
Efficiency
Feed rate
Mechanical loss
Operating speed
Subjects

Authors retain the copyright. This is an open access article distributed under Creative Commons Attribution 4.0 International License (CC BY 4.0)

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Journal of Agricultural Machinery

Articles in Press, Accepted Manuscript
Available Online from 24 February 2026

  • Receive Date 17 November 2025
  • Revise Date 02 February 2026
  • Accept Date 02 February 2026
  • First Publish Date 24 February 2026

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