compressor setup

[DarkAge]

I painted with single stage (2k paint) with the following:
sealey hvlp-751: 8cfm
devilbiss prov-600: 6cfm
Total 14 cfm = 400 liters/minute

I was painting continuously without any breaks (was painting some very large items).

I was running 2x10 meter pipe with a three stage filter between the pipes. So 20 meter in total.

To support this I was running:
3 hp 400V compressor
4 hp 400V compressor
2.5 hp 230V compressor
Total 9.5HP

The 3 compressors were running all the time when I was painting, which is not good for the compressors (I did have extra cooling fans on them). Thumb rule is that they should cool down for as long as they run, before the next cycle starts.

That sounds like a lot, since it seems that you guys are doing the same thing with 2x3 HP compressors...

I'd like to go down to 2x400V compressors, but that would end up 2x5-6 hp to have the extra overhead. That sounds like a lot...

What's your setup ?

 

[Chipper]

Home user. 2x 3hp, 28cfm total displacement, so approx 18cfm FAD @ 100psi. They do run a lot, but not all the time. I haven't actually checked duty cycle on them but both are decent quality machines.

Have got another two comps with 4hp together, but they're direct drive 8 bar max so not going to hook them up.

I've got a Devilbiss mask, Iwata gun about 10cfm, JGA about 7-8, Sealey about 7-8.