Compressor to run touchup gun
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Hey everyone,
I purchased a Iwata LPH80 for some touch up jobs and since I’m going to be using it quite frequently i’m looking to get a compressor which is gonna last me some time. From what info i found online so far it seems that oil lubricated belt drives are the way to go.
Currently im looking at a 2.2Hp compressor with a FAD of 5.8 cfm, the specs for the gun says it only needs 2.2cfm and I was wondering if the compressor would be too big or if the specs deliberately quote less air than it needs to get a good finish but fall within regulations for HVLP guns?
Thanks!
Yes that will run your gun pretty well with no problems
I used a 1.6 hp Compressor with a SATA minijet 4 with no problems the spec sheet says this needs 29PSI and 4.1CFM of air
Iwata says yours need 13-14 PSI and 2.1CFM this is a LVLP gun (which complies with HVLP no problem
Just keep in mind that FAD Free Air Delivery is at 0PSI
Occasionally I use a very similar spec compressor with my LHP80 and it does the job perfectly. It hardly runs at all, which is ideal as the air doesn’t get too hot, so you suffer less from water in it (Compressed Air Humidity, CAH).
Within reason, there’s no such thing as a compressor that’s too big. The gun will just draw what it needs 😉
the golden rule is buy a compressor that gives twice the output of the largest demand put on it IE allow for a 50% duty cycle on most units
i own a Hydrovane 2.2 KW but that is designed for constant running if required and achieves a FAD of 8CFM@140 psi.its nocking upwards of 25 years old and is still going strong ,it will run almost everything i throw at it ,there is smaller version available which delivers aprox a FAD of 4cfm@140psi
that sort of output[the 2.2] is equal to most 3HP pision jobs claiming 14CFM displacement
expensive when new but will give at least 100,000 hours service ,Hydrovane now give ten year warrenty packs if serviced by thier agents ,servicing is every 2000 hours and not at all expensive concidering it gives you a ten year extended warrenty
hydrovanes dont wear out they just bed in and produce more air than when new unlike pistons
mine is now used at home but at a push i would work of it again in bodyshop envoiroment especialy with noise levels below 70db
Paul
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