2 replies to this topic

[Tomf]

What the smallest size acceptable compressor that can be used for spraying (liters and hp)?

Im not looking to buy one right now as i have someone spraying my mini for me but as hes doing this he will be teaching me how to do different things as we go along.

So in the future i will be looking to buy a compressor to use both a DA and to spray spray gun, but what size would be best. I dotn want something huge as im moving house in a few weeks and there isnt as much space there.

[roofless]

What the smallest size acceptable compressor that can be used for spraying (liters and hp)?

Im not looking to buy one right now as i have someone spraying my mini for me but as hes doing this he will be teaching me how to do different things as we go along.

So in the future i will be looking to buy a compressor to use both a DA and to spray spray gun, but what size would be best. I dotn want something huge as im moving house in a few weeks and there isnt as much space there.

the smaller the compressor you get the more it will have to re-fill - if that makes sense.
If you are happy to have it run almost constantly and your neighbors like you lots then a simple 25 litre tank machine will do.
It boils down to what kind of gun you are using I think - if its a quality low pressure gun then theoretically a smaller compressor running its nuts off should be OK.
If not then you need a larger tank and a compressor that can supply the cubic feet of air that you need per minute to achieve a reasonable result.

My sata gun runs happily at 3 - 3.5 bar and my 25 litre sip airmate Nimbus 25025 seems to keep just enough pressure to do a pretty large job. It does run almost non stop however and gets rather warm. It needs draining regularly also to stop water rising through the air feed.
Give the compressor a chance to keep up with you and you will be fine - just watch it does'nt overheat.

The DA is more of a problem as they tend to run constantly and use hell of a lot of air - find a reasonablly priced DA and look at how many cubic feet of air per minute it needs - that'll kinda dictate what spec of compressor you're going to need. More expensive DA's can be run on lesser pressure but to be honest I got fed up of the constant compressor noise and the mess and invested in a Festool electric orbital sander and extraction hoover. There are much cheaper electronic orbital sanders out there and work at a constant rate - no problems with pressure loss or overheating compressors.

[Tomf]

Thanks for the info very helpful

So ill make sure that it is no smaller than a 25 liter tank ill aim for 30+ just so that it can kind of cope a bit lol.