RPM is making me headaches too. Do not know the speed of vane
rotor but i am aware that it must be very high in order to get extremely high torque this kind of machines produce.
According to this parts
list, i can count only 3 reduction sets, 2 with classic gears and one planetary set, it seems that it is the same or very similar model.
https://www.ingersollrandproducts.com/c ... _ed2_B.pdfThis is the same model, just a little bit faster. just check how much this thing cost as new!!!
https://www.intlairtool.com/ingersoll-r ... -power-hp/Acoording to data i googled, this is suposed to be model 551 S0 with 77 rpm on main spindle and 1200Nm of torque and 4.2kW at full load, some 40kg...Well, you know me, I love overkill machines
Just imagine drilling with this beast!
Now to real problems - it it produces only 77RPM with vane motor, it has some serious reduction inside it, minimum 3 steps so vane motor turns definitely at far more than 3000RPM i can produce with normal electric engine. Since you know how hardcore DIY fanatic I am, i already found soulution for this problem!! I have two angle grinders with damaged gearbox and great engines, one is small wih 1kW and 10.000rpm on grinding disc and other one is big with 6000RPM on grinding disc (230mm discs) .
Since they have 10.000RPM and 6000RPM on their grinding disc, their engines must have far more than that, at least 20-30.000 RPM. I could use that engine, get very high RPM on vane rotor (via belt) and achieve some speed at main spindle.
I think this is the weirdest idea ever, even on this forum
.