Design and Development the Onion Peeling Machine Using Diamond Mesh Shape Tromp Peeler

  • Halimah Ab. Rahim Politeknik Sultan Haji Ahmad Shah
  • Mohamad Hissammuddin Shah Zainal Abidin Politeknik Tun Syed Nasir Syed Ismail
  • Mohd Hariz Ibrahim Kolej Komuniti Paya Besar


Onion peeling machine was developed for a Small-Scale Food Industry. The machine was equipped with horizontal rotating tromp peeler and aided with compressed air to remove the outer layers of the shallot skin. The goals and objectives for this project will focus on design, invention and fabrication that improves and reduce the operation time, enhances the ability and effectiveness of onion peeling machine. The machine was tested to determine the machine peeling capacity, the percentage of removed shallots skin and peeling efficiency towards three different types of shallots (Siam, India, Rose India). Results shows that the peeling capacity for India and Siam shallots skins were no significant difference compare with India Rose. The percentage of removed shallots skins are higher for Siam (84%) and India (80%) shallots due to the very thin membrane of the skins compare with India Rose (76%) that had strong roots and thick membrane layers. As a conclusion, this onion peeling machine was designed, fabricated and tested successively for different types of shallots and capable to peels the shallots skin to produce higher throughput.

How to Cite
AB. RAHIM, Halimah; ZAINAL ABIDIN, Mohamad Hissammuddin Shah; IBRAHIM, Mohd Hariz. Design and Development the Onion Peeling Machine Using Diamond Mesh Shape Tromp Peeler. Politeknik & Kolej Komuniti Journal of Engineering and Technology, [S.l.], p. 90-102, jan. 2019. ISSN 0128-2883. Available at: <>. Date accessed: 02 dec. 2022.

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