Skip to main content
Log in

Development of an Electric Motor Powered Low Cost Coconut Deshelling Machine

  • Original Contribution
  • Published:
Journal of The Institution of Engineers (India): Series A Aims and scope Submit manuscript

Abstract

An electric motor powered coconut deshelling machine was developed in line with the commercially available unit, but with slight modifications. The machine worked on the principle that the coconut shell can be caused to fail in shear and compressive forces. It consisted of a toothed wheel, a deshelling rod, an electric motor, and a compound chain drive. A bevelled 16 teeth sprocket with 18 mm pitch was used as the toothed wheel. Mild steel round bar of 18 mm diameter was used as the deshelling rod. The sharp edge tip of the deshelling rod was inserted below the shell to apply shear force on the shell, and the fruit was tilted toward the rotary toothed wheel to apply the compressive force on the shell. The speed of rotation of the toothed wheel was set at 34 ± 2 rpm. The output capacity of the machine was found to be 24 coconuts/h with 95 % of the total time effectively used for deshelling. The labour requirement was found to be 43 man-h/1000 nuts. About 13 % of the kernels got scraped and about 7 % got sliced during the operation. The developed coconut deshelling machine was recommended for the minimum annual use of 200 h or deshelling of 4700 coconuts per year. The cost of operation for 200 h of annual use was found to be about ` 47/h. The developed machine was found to be simple, easy to operate, energy efficient, safe and reduce drudgery involved in deshelling by conventional methods.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

  1. Coconut Development Board, Cococnut Processing Technology, Dessicated Coconut-Project Profile (Ministry of Agriculture, Govt. of India, New Delhi, 2012)

    Google Scholar 

  2. Science Reporter, Patent for Coconut Cutter (National Institute of Science Communication and Information Resources, New Delhi, 2010)

    Google Scholar 

  3. T.V. Singh, R. Udhayakumar, Development of a coconut deshelling machine. Trop. Agric. Res. 18, 20 (2006)

    Google Scholar 

  4. The Hindu, NIT-K Students Develop Machine for Making Coconut Powder (The Hindu, Mangalore, 2012)

    Google Scholar 

  5. CoCoMan, CoCoMan Coconut Processing Machine, Operation Instructions (CoCoMan Coconut and Coconut Coir Processing Machines, Selangor, 2013)

    Google Scholar 

  6. K.K. Tonpe, V.P. Sakhare, C.N. Sakhale, Design & performances of coconut deshelling machine. Int. J. Eng. Res. Appl. 4(7), 39–44 (2014)

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to G. V. Prasanna Kumar.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Mondal, I.H., Prasanna Kumar, G.V. Development of an Electric Motor Powered Low Cost Coconut Deshelling Machine. J. Inst. Eng. India Ser. A 97, 105–109 (2016). https://doi.org/10.1007/s40030-016-0159-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40030-016-0159-x

Keywords

Navigation