Engineering ProjectsMechanical Projects

Mini Groundnut & Peanut Shelling Machine


Groundnuts, also known as peanuts, are among the most widely consumed legumes globally. However, the process of separating the nut from its shell can be labor-intensive and time-consuming. This article introduces a groundbreaking solution: a mini groundnut and peanut shelling machine designed for both efficiency and ease of use.

The Need for Automation

Traditionally, groundnuts have been shelled manually, a method that is not only time-consuming but also less efficient. The advent of groundnut shelling machines has revolutionized this process, making it quicker and more efficient, especially for large-scale operations.

How It Works

The groundnut shelling machine operates using electric DC motors connected to an external power supply. When powered, the motors rotate a roller equipped with shell-crushing horns. Groundnuts are fed into a crushing chamber through a hopper. As the roller rotates, the groundnuts are crushed between a semi-circular net and the roller, effectively separating the nuts from their shells.

Key Components

  • Roller: Equipped with shell-crushing horns, it is the primary component for breaking the shell.
  • Hopper: The entry point where groundnuts are fed into the machine.
  • Crushing Chamber: The area where the actual shelling takes place.
  • Semi-circular Net: Helps in separating the shell from the groundnuts.
  • DC Motors: Powers the roller and is connected to an external power supply.


  • Efficiency: The machine can process a large number of groundnuts in a short period.
  • Ease of Use: Simple operation makes it user-friendly.
  • Electrically Operated: Being electrically powered ensures consistent performance.

Downloadable Resources

For those interested in a more technical understanding, a detailed groundnut decorticator project report is available for download in PDF format.


The mini groundnut and peanut shelling machine is a game-changer in the world of agricultural processing. With its advanced features and efficient performance, it is set to replace traditional methods, offering a more automated and efficient way to shell groundnuts.

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