Pneumatic cylinder selection - Help calculating the force needed

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Discussion Overview

The discussion revolves around the design and selection of a pneumatic cylinder for a portable pill crusher. Participants explore various mechanisms for effectively crushing pills with hard shells, considering factors such as force requirements, portability, and noise levels. The conversation includes technical specifications, potential designs, and the challenges of achieving the desired crushing effect.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • One participant describes the need for a pneumatic cylinder with a 30mm stroke to crush pills in a metal container, noting that manual pressure alone is insufficient.
  • Another participant suggests that rotating the pills between dented surfaces may be more effective than steady compression, proposing a nut and screw type of press with pneumatic action.
  • A participant shares their experience with using impact to crush pills, noting that a pneumatic cylinder with a 100mm bore could theoretically provide significant force, but they are seeking a quieter, more portable solution.
  • Concerns are raised about the practicality of using impact methods due to noise and portability requirements, with suggestions for combining steady force with rotational movement.
  • Some participants discuss the feasibility of using pneumatic systems and the need for a reliable air supply, questioning the portability and noise of such systems.
  • Ideas for alternative mechanisms, such as electric-driven grinders or impact screwdrivers, are proposed, but concerns about noise and effectiveness remain.
  • One participant mentions the potential use of a mini electric pump and a compact cylinder for a quieter operation, while also considering the design of a rotating base.

Areas of Agreement / Disagreement

Participants express differing views on the best approach to crushing pills, with some advocating for impact methods and others favoring steady compression combined with rotation. The discussion remains unresolved regarding the optimal design and mechanism for the pill crusher.

Contextual Notes

Participants highlight limitations related to the availability of compressed air, the need for portability, and the challenges of achieving sufficient force without excessive noise. There are also unresolved questions about the effectiveness of various proposed mechanisms.

Who May Find This Useful

Individuals interested in mechanical design, pneumatic systems, or those looking to create portable devices for crushing pills may find this discussion beneficial.

  • #31
I would like to thank of all you for your willing to Help. After so many months i developed a mechanism , noisless, compact , extreme fast ( <3sec) and "smart". Once i register for patent i will share first with you the way i did it. Thank you
 
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Likes   Reactions: Tom.G and berkeman

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