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Air Rams
Posted: Tue Mar 25, 2003 6:15 pm
by Dozoor
OK is simple question.
6inch diameter cylinder = how many square inchs ?
When working with air pressure 100psi = 100psi,
There is a ratio of loss in power ? other then pressure loss of accumalated air.
How long would 100psi take to flow through a 1/2 inch fitting to fill a 6" diameter x 8" tall cylinder ?
Anyone ever converted a hydualic to air what kind of seals do air rams use Nylon, neoprene ?
I couldn't be bothered doing a search One of you enos should know the answers for me Please
Larry.
Or a u bute site to look at ?
Re: Air Rams
Posted: Tue Mar 25, 2003 7:08 pm
by M&M Custom Engineerin
Dozoor wrote:OK is simple question.
6inch diameter cylinder = how many square inchs ?
28.27 square inches. The volume of the cylinder you describe below would be 226.2 cubic inches When working with air pressure 100psi = 100psi,
There is a ratio of loss in power ? other then pressure loss of accumalated air.
[color=orange]There should be no pressure loss. Pressure should be equal throughout the system.[/color]
How long would 100psi take to flow through a 1/2 inch fitting to fill a 6" diameter x 8" tall cylinder ?
Pressure isnt flow. Pressure is the resistance to flow. You can have have 100psi and very little flow or very high flow. To work it out you would need to know the flow that the compressor is capable of.
Anyone ever converted a hydualic to air what kind of seals do air rams use Nylon, neoprene ?
Hydraulic and pnuematic cylinders are the similar in function but vary in the construction due to the extremely high pressure used in hydraulic systems. You will find a pnuematic cylinder would probably not be made robust enough to handle the pressure of hydraulics.I couldn't be bothered doing a search One of you enos should know the answers for me Please
Larry.
Or a u bute site to look at ?
Posted: Tue Mar 25, 2003 7:45 pm
by Dozoor
Thanks mick , so my 6" cylinder working with 110psi will give me around 1400kg of lift .? MMM so you think the standard hydaulic seals will work with air ok if i provide a lubricator in the air line just before the rams ?
Posted: Tue Mar 25, 2003 7:56 pm
by M&M Custom Engineerin
Dozoor wrote:Thanks mick , so my 6" cylinder working with 110psi will give me around 1400kg of lift .? MMM so you think the standard hydaulic seals will work with air ok if i provide a lubricator in the air line just before the rams ?
3109.7 pounds, i dont know the conversion to kg off the top of my head but it is around half so 1400kg sounds good!
I not sure about the seals. Try ringing a hydraulic place about the seal differences.
Posted: Wed Mar 26, 2003 7:57 am
by bj on roids
1413.5 kilograms
why
Posted: Wed Mar 26, 2003 9:04 am
by Brad
Why would you want use air ? won't it heat more due to pressure from compression and movement ?
Air is usually used in low pressure systems and systems built to sustain loss like air tools. Would air not be very uneconomical in replacing a hydraulic system ?
What are you trying to do ?
Posted: Wed Mar 26, 2003 7:41 pm
by M&M Custom Engineerin
a hydraulic system gets very hot too, thats why generally there are coolers in the system and they also use a large resevoir to help cool as well.
Posted: Wed Mar 26, 2003 8:16 pm
by Dozoor
Had a look at the air bag setups ,and they look ok ,but would like to biuld somthing for myself - the rover chassis would lend itself to a simple ram setup to push down on the spring quiet easilyand work as spring locaters at the same time looking for say 6" to 8" lift over the ride hieght,
If i use the air its basically all there, air con compresser still mounted on the donk.add a tank and i can use the occasional air tool as well-
