Compressed air
@antifoo found this: Grays.com: Australia's Premier Online Auction Platform
and I found this https://www.jjairsystems.co.uk/product-category/air-compressors/industrial-air-compressors/hydrovane-hv04-hv45/
So maybe theres a deal there. Otherwise this is sort of the size of compressor we need:
https://www.totaltools.com.au/113508-ironair-7-5hp-270l-belt-drive-air-compressor-lb32270s3
We don’t know what the Free Air Delivery we need is, but we know we need a Pressure of 8 bar (120psi) “continuous”.
We know that air should be dried, no oil etc.
I called trade tools to figure out our current compressor and this is what I learned:
the last RP35 they sold was in 2005, so our unit is at least 15yo
180L tank, 750L/m FAD, probably 120PSI maxop, relief valve probably triggers at 140PSI.
I also got in touch with Blue Elephant CNC and asked what the requirements were for that machine and they stated:
0.7mpa [sic] is fine
For ATC machine is about 400L/min is ok
So thats 100psi pressure and 400L/min FAD