Air Pressure excavator

[RcBruder]

https://www.automationdirect.com/adc...Acting#start=0
Those are double acting cylinders so i figured that it would work the same. It would be more complicated then the hydraulics but i think cheaper. I was thinking two valves per cylinder; one for inlet and one for the outlet. So it would be a circuit. One would push the ram forward and the other one would let the pressure out of the top, kinda like the hydraulic system. Still don't have enough pressure for the whole system. I don't think that multitasking would be an option lol. Hydraulic systems run at around 180-200 psi if i read correctly. The only miniature air pump i have found pumps at about 25psi. That's enough to maybe move the bucket for a second lol. Still researching but i need to finish my bruder dump truck conversion before i start anymore projects. I already have the dump truck and my bruder d5. That will last a month at least lol.
-Rc

[bigdogrod]

check out airplane retracts and stuff, some of those are air powered.

i built a dump truck with a robart air cylinder a while ago, worked ok, but never tried to lift anything heavy. and i made the air tanks out of pvc and put them in the stock king hauler fuel tanks. used a hand pump to pressurize. worked most of the time until the glue failed on one of the air tank end caps at like 50 psi....

i'll stick with firgelli actuators from now on..lol

https://www.firgelliauto.com/