Thread: Air flow
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31-05-2022 #11
Only thing to watch is overheating. These compressors are designed for fairly short run times in normal use, with pressure cut-off switch. Running for 30 mins or an hour on a long cut they might get too warm. I fitted a computer fan on the back of the crankcase to blow air through it.
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31-05-2022 #12
Strange that! I had a LIDL airbrush compressor, with a disposable welding gas bottle to make a reservoir. I only used it to clean down the machine and shift any build up of chips. This has been since replaced with a small Jun-Air compressor, which is nice and quiet and it only cost me £20. It is old and needed a new pipe and a service, but it is a quality machine. Apparently these compressors are used in Banks as part of the security grill system and with the closure of Branches, they are becoming available.
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31-05-2022 #13
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31-05-2022 #14
The reason I went for the large pond aeration pump is that it can run continuously (24/7 if necessary). It is quiet compared with even an airbrush compressor, pumps out 80L/min free air (70L/min in a typical pond aeration rig) and can produce 0.3 MPa which is 43PSI The ACO-388D costs £40 - ish. When I get my machine recommissioned, I will use it again, with the bigger compressor for large area clearance.
Just a footnote, I started off with a smaller pump, which was OK but not brilliant.Last edited by cropwell; 31-05-2022 at 09:57 PM.
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31-05-2022 #15
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01-06-2022 #16
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01-06-2022 #17
Another option might be a HVLP high volume low pressure paint sprayer. These use a radial compressor, so sound rather like a vacuum cleaner...
I bought an Erbauer one from Screwfix and it worked well for clearing swarf - too well, so the stuff ended up all over the workshop. Until I get round to fitting an enclosure, I am persisting with flood cooling and periodic blasts with a handheld air line.
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