I’m chasing a mirror-bright finish on sprayed shells, but my 1/5 HP compressor dips around 35 PSI and leaves a faint grain when I spray 31.5°C cocoa butter through a 0.8 mm nozzle… Has anyone found an oil‑lubed 1‑gallon unit that holds a velvety, steady 45 PSI without pulsing — brand and noise level that won’t drown out a tempering machine?
But sil‑Air 20A (oil‑lubed) has been my keeper — it holds a dead‑steady ‘45 PSI’ with a 0.8 mm at ‘31.5°C’ cocoa butter and sits around about 40 dB, so it doesn’t overpower the temperer; only caveat is the 1.6‑gal tank, but the stability beats the smaller cans. I also put a mini regulator/moisture trap right at the gun to kill any micro‑pulsing. Are you on 120V or 230V?
I’ve had good luck with a Jun‑Air 6‑15 (oil‑lubed); the 1.6‑gal tank holds a steady “45 PSI” on a 0.8 mm and it sits around about 45 dB — more fridge hum than shop roar. If you still get a faint pulse, add a small secondary regulator/mini‑accumulator at the gun plus 10–15 ft of hose to smooth demand. Curious if you’ve got a trap at the handle.