Cheap compressor?

Having put 4000 plus in a deck once it's not something you forget in a
hurry. (It may have been more but the mind blanks these things out.)

The trick is to have two of you doing it with belt fed electric drivers
using collated stainless screw that have their own drill tip to them.

ZIP ZIP job done.

 

heh. Sounds much like my spray painting. The joy of which I shall
re-visit this weekend.

 

Mick Whittingham barfed:

Did you hire these rather specialised tools?

I can't imagine if one bought them they'd be all that useful unless you
took up a career of wooden deck building.

 

I scrounged them for a weekend off of a friend who does that sort of
thing for a living. They are worth their weight in gold.

Too true!

 

Lord Frag wrote:
[ Screwfix compressor ]

OK, so I'm trying to work out which is better out of the Aldi and the
Screwfix compressors. I realise you don't get the nail gun with the one
from Aldi, but I'm more interested in which is the better compressor for
things like air ratchets, etc.

They both have the same maximum pressure, but Aldi tell us this:

- Air intake capacity 210 litres per min
- Air output at 0 bar = 140 litres per min.

Whereas Screwfix tell us this:

- 6.3cfm Displacement
- 6 Ltr Air Receiver

I'm guessing the displacement is somehow related to the input/output
rate, but how?

The Aldi one looks like it's got a slightly bigger tank, but it's really
hard to say from the pictures. Oh, and it's got wheels.

 

I've no idea how to compare these. For reference, my 4.5cfm
compressor drives airtools and a spray gun quite well.

Wheels are good.

 

Well, I'm not sure exactly what it means by that, really. Which is kind
of why I was asking.

Well, the Aldi's 140l/m works out at ~4.9cfm, which should be enough.
But it's intake of 210l/m works out at ~7.4cfm, higher than the
Screwfix's 6.3cfm, *but* I don't know if I'm comparing the correct figures.

Aye, I guess if it's small enough to be considered portable, it might as
well be *easily* portable. The only compressor I'm used to seeing in
action is the one in our friendly local mechanices workshop, which is in
a slightly different league.

 

Yeah, I'd guess so.

Aye, that's true.

Ummm... I dunno - if you don't need any significant output pressure, you
don't need the tank full, do you?

Where's an air compressor expert when you need one? Pip? Bonwick? Anyone
else know?

 

Eddie composed the following;:

The Aldi, then, has the better figures on paper, but it's close to call.
If the 'wheels' are very small castors, then you'd be better getting a
small trolley with decent wheels on and bolting it to that. Mine were
useless and I have, indeed, bolted it to a small trolley, which works
well as it also gives me somewhere to store all the extra tools and
'stuff' ...

As a 'starter kit', I'd plump for the Screwfix setup. And sell the
crappy bits you don't need for sod-all on ebay .. then have to buy a new
one a week later when swmbo wants a door hanging or something ....

 

Ah-hah! That's what I wanted to know.

Nah, it's got wheels at the back, and a handle at the front. Like this:
http://homepages.nildram.co.uk/~deguello/ukrm/compressor.jpg

Thanks for the advice, but: I think I'll go for the Aldi one, seeing as
I can just walk in and buy it. Getting anything delivered at the moment
is a nightmare.

 

Eddie composed the following;:

Heheheh, know what you mean.

 

Ah, that's a better picture than the one in the email.

24l? Excellent! That would explain the 210/8/24 on the side of the tank.

Hmmm... OK, the equivalents from Screwfix are 80-85 quid, depending on
whether it's 1.5hp or 2hp.

I'm guessing it'll be oil-free, as the Screwfix ones are. They say "low
maintenance"... destroyed bearings doesn't sound like low maintenance to me.

*shrug*

It's got a three year guarantee. At that price, I'm not that worried.

Just what we needed.

 

"Oil free" is a requirement for driving paint spray guns, as I
understand it. Otherwise you get oil in your paint. Or something.

 

But... if you've got a non-oil-free compressor (or whatever the
technical term is), don't you end up with oil in your tyres?

 

Probably. It's only a very small amount, so I don't think it would be
a problem in tyres, espcially given the amount of air required. But
even a tiny amount will **** up your paint.

 

That's why you should have oil/water traps. You can buy small cheap ones
that attach to the spray gun.

I can't find the one I'm after but similar to this:
http://www.machinemart.co.uk/product.asp?p=000120550&r=2015&g=103

 

Found it:
http://www.axminster.co.uk/product.asp?pf_id=30456&recno=5&cid=8XUZ9UPZTAN
S0J8YPM5EIGOITK2RIVOV

 

You'll need an oil separator/filter, you will.
Then again probably not, as your not spraying paint ;o)

 

Water is another enemy. The inline traps are well worth it.

 

Industrial ones = lots.

Not so industrial:
http://www.machinemart.co.uk/product.asp?p=000210945&r=2015&g=103
http://www.axminster.co.uk/category.asp?cat_id=206839&cid=8XUZ9UPZTANS0J8Y
PM5EIGOITK2RIVOV