Questions tagged [pneumatic]
The pneumatic tag has no usage guidance.
23 questions with no upvoted or accepted answers
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Estimating Maximum Speed for a Pneumatic Cylinder
I am designing an machine that is going to use a pneumatic cylinder to accelerate a projectile. I have a tentative cylinder specified, and am working on the control and supply side. I have verified ...
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Are there hydraulically actuated pneumatic valves?
I am working on a hydraulic system that is powered by an air-hydraulic piston pump, the pump uses pneumatic pressure to drive a piston which then pressurizes the hydraulic system.
The system needs to ...
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How to repair stripped, leaky pneumatic fitting?
I have a pneumatic cylinder with a stripped fitting, which causes a slow leak. I took it to a machine shop and he tried to re-thread it but there wasn't enough good metal left to get a good thread. He ...
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Is this Proportional Electro-pneumatic valve a direct replacement for other valves listed?
In the midst of trying to redesign the pneumatic subsystem of a combined system, I'm at the point of validating a new valve would serve as a direct replacement. The reason for the redesign is an ...
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Choosing a blower for a Pneumatic Conveyor
Basically we are designing a pneumatic conveyor system for transferring 11 tons of beans per hour.
We need to decide on the specifications of the blower. What are the calculations necessary to decide ...
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Pneumatic cylinder: Pressure rating
I want to create a Pneumatic cylinder, The purpose is, Inside it will will contain a Nylon piston, and one end will be filled with clay. Cylinder will be closed from either side using end caps, which ...
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What type of pneumatic valves would represent the valves in the schematic?
What type of pneumatic solenoid valves would represent the valves in the schematic?
Specifically, the lower valves could be represented by a 5 port 4 way 2 position valve. This is because there is ...
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Air demand for powder fluidization system
I need a good estimate of the air demand for a system to fluidizde a powder. We a have silo with a 60° cone and a rotary cell feeder attached to the opening in the cone. The powder (fine powdered ...
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Proper way to power/use a vacuum cylinder?
I'm considering using a vacuum cylinder in my project (like these ones) to lift sheets of cardboard, but being new to mechanical engineering I'm not at all sure what I need to attach to operate one, ...
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What is a good approach to create a powder dispensing system for a home project?
I have this task where I need to dispense a certain amount of powder (small quantities, around 10g or so), onto trays that are stacked on top of each other with a space of about 20cm between each tray ...
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What is the correct equation for McKibben force output calculation?
I found this post, but no matter how many times I try, either in radians or in degrees, the results are simply weird.
My "correctest" result was -179533.
The dimensions are 100mm of length, ...
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What is the difference between side-channel/regenerative/ring/vortex blowers?
I am looking to write a Wikipedia article for side-channel blowers, but I have some big confusions that are not being alleviated by my attempts at research.
There are certainly two distinct ways that ...
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I don't understand how the pneumatic control precession actuation on the Brennan Monorail's gyros further balances the vehicle
I linked a YouTube video from Primal Space, The Self Balancing Monorail, discussing how the Brennan Monorail works.
@6:40 timestamp the narrator explains how the pneumatic pressure "[pushes] the ...
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Is there any difference in performance when using a small pipe diameter for a greens bubbler?
So a greens bubbler is a setup that helps the farmer cleaning greens/ gets/ fruits by agitating the water.
Details here: https://blog.uvm.edu/cwcallah/2021/10/06/building-a-better-greens-bubbler/.
In ...
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How to handle air pressure circuit with very different setpoint values
I'm a hw/sw guy, with a very limited knowledge about pressure/pneumatic circuits.
For my new job I have to design a closed-loop controller to inflate and maintain two chambers with a given pressure. ...
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Piston Compressed Pneumatic Cannon
During an discussion with friends regarding pneumatic cannons, I came up with this gem :). Piston power pneumatic cannon. My friends however, didn't share my excitement regarding this revolution in ...
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Displacement and force control with pneumatic cylinder
Good day,
I was confronted with the task to develop a new controller for pneumatic cylinders. The control channels are displacement and force. A load cell is used to measure the force (analog signal). ...
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How would you solve this task of a pneumatic machine?
Engineering student here.
Pardon the lack of knowledge in English :)
So the objective is:
When you click on the Start Button then it turns Cylinder C on and then Cylinder B on, later it turns Cylinder ...
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How to calculate the terminal velocity of grains in a pneumatic conveyor?
Here is the main question I got from a textbook:
Rice is transported by a pneumatic conveyor. The particle density is 1.4g/cm³. The major, intermediate and minor diameters are 1cm, 0.3cm and 0.4cm ...
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Pneumatic pressure sensing in a moving air compressor line
I am building an automatic control system for an compressor that stops at a designated pressure. Here's a rough sketch of the system:
The compressor should receive the on signal from the ...
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Pneumatic cylinder extension rod preloading
I've been working on converting a 500Kg pneumatic press to use it for injection molding.
In order to do that though I'd like to raise the cylinder up maybe 12". So I fabricated 4 5/8 CR rods and ...
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Using Density Correction Factors for Fans and Blowers
I've been researching fans/blowers and their use in pneumatic systems (particularly conveying systems), and I'm confused by the application of density correction factors. Let me describe a sample ...
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How to build a hydraulic standing desk?
I am trying to build a standing desk but I want it to be wireless (aka - no electricity needed).
My idea is:
have 4 hydraulic pistons that extend (from 60 cm (25in) to 120 cm (50in)).
They will be ...
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