New compressor manufacturer recommendations

tomlad

Member
Location
nr. preston
Think im going to bite the bullet and buy new
3phase
Basically 200 ltr +
10 ph
30 + cfm
Only want big hoping to run blast cabinet intermittently.
Obviously normally shop use rest of time

Sgs looking competitive anyone any recommendations .....
 

dave mountain

Member
Livestock Farmer
if you are blasting you will need a 10kw+ screw compressor really. hpc sk22, atlas ga11, compair l11 etc.
if you are looking at buying something from sgs then forget blasting. decent screw compressors will do 60k+ hours so worth looking for 2nd hand ones, maybe a better buy than a cheapy new one from sgs.

edit: this is for occasional blasting, blasting contractors usually use 100hp+ 6cyl diesel compressors.
 

David.

Member
Mixed Farmer
Location
J11 M40
I run a small Sealey type blast pot well enough with a 26 cfm, 3ph machine.
Not pretending it would be any use for big jobs, but for components and repairs it's OK.
If Shiremoor are still going, I'd have another from them in a moment, last one, I'm surprised to realise, has done 20yrs, trouble free.
 

tomlad

Member
Location
nr. preston
Ive no delusions of running a big blast pot .
I bought a blast cabinet while back , i haven't got around to plumbing in , seller believed it needs 200 ltr + so wen i saw the 300ltr cheep and local i rushed in abit giddy, it's borderline scrap , chuck more money at it or buy new . Thinking the latter.
 

dave mountain

Member
Livestock Farmer
if you already have a 300L reciever i would just take the pump off and reuse the reciever with a new or 2nd hand standalone screw compressor, thay way will get you a much better set up for the same money.
 

tomlad

Member
Location
nr. preston
Its test date is old 80 s from memory. How long till need a inspection
I know now crusty inside, might be fine, might not eh .
A mate had suggested using as a buddy receiver, paired up , hadn't occurred to me .
 

dave mountain

Member
Livestock Farmer
Ive no delusions of running a big blast pot .
I bought a blast cabinet while back , i haven't got around to plumbing in , seller believed it needs 200 ltr + so wen i saw the 300ltr cheep and local i rushed in abit giddy, it's borderline scrap , chuck more money at it or buy new . Thinking the latter.
Also meant to say, the reciever size doesn't make much difference unless it's for very short tasks, the CFM of the compressor is far more important. Some 200L compressors can blast all day, others won't run a blast pot for more than 20 seconds at a time. All depends on the CFM (or m3/hour if you want to be modern).
 

Abacus

Member
Mixed Farmer
Location
South east
all depends what preacher you need thre 200L at my blast pot need 170 cubic feet min at100psi with a 7/16 nozel most new compressers are rated at free flow no presher thats why sume 200L compresser can and some carnt run a blast cabint with the same rating I think most cabints need 20 to 40 cm at 100 psi to be afetive
 

dave mountain

Member
Livestock Farmer
all depends what preacher you need thre 200L at my blast pot need 170 cubic feet min at100psi with a 7/16 nozel most new compressers are rated at free flow no presher thats why sume 200L compresser can and some carnt run a blast cabint with the same rating I think most cabints need 20 to 40 cm at 100 psi to be afetive
20 to 40 is about right for a small cabinet, but you should really have a 60cfm+ compressor (approx 10kw+), as otherwise the compressor will be working flat out just to maintain some kind of pressure in the receiver, and you will likely lose pressure at the workpiece. If a tool needs 40cfm you then it need a compressor larger than 40cfm for it to work properly. Remember this is the compressor's max output if it is pumping constantly, which is not what should be happening if you want any kind of longevity from it. It also doesn't consider losses in the pipework/hoses etc.
 

colhonk

Member
Location
Darlington
I have a Clark 30cfm free air compressor, had it years, even piped up to 2 x 250 receivers only lasted 3 or 4 mins on a home made blast pot with 2 mm ceramic nozzle. Scrapped that and bought a 2 tool tow compressor and new blaster.
 

CHAP Webinar - Innovative tools to overcome the challenges of Regen Ag

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