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  • Air compressors - school me please

    Looking for a new air compressor it will be mainly used for pumping up truck and tractor tyres with occasional use of a plasma cutter and rattle gun, prefer a portal unit with wheels. The plasma cutter says it needs 189 l/min @ 75 psi.
    what is a good make of compressor and what size, I don’t have 3 phase power.
    Would this one do the job?https://www.totaltools.com.au/86387-...mpressor-c16hp

  • #2
    McMillan, Pilot and Peerless are all good Australian brands. The McMillan you have linked to will do the what you want and be high quality. You may prefer the slightly higher FAD and the pneumatic tyres for your situation.
    Personally I would get the Pilot as it has the better cooling which makes it easier to remove moisture. Also I know of users with pilots and they last and last.
    That is the one on my list to replace my cheap chinese unit.


    https://www.totaltools.com.au/173261...pressor-k25sdl
    Last edited by Craigy; 22-08-2021, 08:22 AM.
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    • #3
      Pilot over McMillan, but they're both pretty good.

      Not too many compressors out there that can't do 75psi, the l/min is very important.

      That said, to do tuck tyres usually requires high psi of 135+ which then narrows your choices a lot when it comes to the sustained output required for that.

      Requirements for the rattle gun will depend on your gun. Newer guns are quite efficient, while some older units require a lot of air to work properly.

      Some of the Chinese made units aren't too bad, some are made by Italian companies with factories in China.

      Both of those units above require 15amp power (most compressors in the 250 l/m range and up are). You will struggle getting a single phase unit that can realistically do truck tyres.

      Look for Free Air Deliver (FAD) as the measure of what the unit can do as this is a certified standard and is the output at the outlet. Pump pressure is higher so the dodgy boys quote that to sound better.

      Also, many compressors (especially the higher output ones) don't like to run on extension leads and can pop capacitors due to voltage drops. You're always better plugging them in directly and having a longer air hose.
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      • #4
        be aware using a decent 15amp compressor and a Plasma off the same circuit may be a big ask, I ended up having to buy a generator to run my compressor. so I could also run the Plasma through my shed circuit. Either that or 15 k to rewire...
        It's all about the impact.

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        • #5
          Originally posted by Hivisibility View Post
          be aware using a decent 15amp compressor and a Plasma off the same circuit may be a big ask, I ended up having to buy a generator to run my compressor. so I could also run the Plasma through my shed circuit. Either that or 15 k to rewire...
          Yep, compressors are very sensitive to power.
          Total Tools Penrith
          127 Coreen Avenue
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          • #6
            Thanks for the info folks and good point regarding running plasma cutter and compressor on the same sub main. I do have a few genny’s but I’m actually wondering if there might be merit in getting a larger compressor with a petrol engine? More research required.

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            • #7
              Originally posted by Medium Rare View Post
              Thanks for the info folks and good point regarding running plasma cutter and compressor on the same sub main. I do have a few genny’s but I’m actually wondering if there might be merit in getting a larger compressor with a petrol engine? More research required.
              We ran Airmac T20P's on our work utes for a decade of trouble free service.
              Honda reliability, more air than you'll probably ever need and easily bump the regulator/auto idle up to 145psi for your truck tyres.
              Ours were out in the weather every day and only maintenance was engine & compressor oil changed annually.
              About $2500 from memory.

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              • #8
                Originally posted by 380EXCQLD View Post

                We ran Airmac T20P's on our work utes for a decade of trouble free service.
                Honda reliability, more air than you'll probably ever need and easily bump the regulator/auto idle up to 145psi for your truck tyres.
                Ours were out in the weather every day and only maintenance was engine & compressor oil changed annually.
                About $2500 from memory.
                Thanks, just bought one. Good looking unit and good price.

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                • #9
                  Originally posted by 380EXCQLD View Post

                  We ran Airmac T20P's on our work utes for a decade of trouble free service.
                  Honda reliability, more air than you'll probably ever need and easily bump the regulator/auto idle up to 145psi for your truck tyres.
                  Ours were out in the weather every day and only maintenance was engine & compressor oil changed annually.
                  About $2500 from memory.
                  Were they electric start?

                  I have an old Clisby. The prices you are quoting make me think I should do up the compressor motor. I put a new electric motor on it years ago. Any idea if that's worth doing up?16297863991861281598314739913690.jpg 16297864440964426438872693646709.jpg

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                  • #10
                    No Pete, the compressors weren't electric start, but we had E-start Honda powered generators in the same utes that did even more work than the compressors and provided the same reliability.

                    Why do up the Clisby? ...you gonna start a museum?

                    Fwiw, the cheapo compressor in my shed is about 25yrs old and never had the oil changed or topped up... I haven't even checked the oil level in about 10yrs.
                    My lame excuse is the drain bung is seized & stripped from my first intended service, so I embarked upon a scientific experiment of near-zero maintenance... I do drain the water from the res occasionally.

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                    • #11
                      That sux & blows 380EXCQLD... You lazy arse:
                      I'm lazy too; maintenance is-the-my laziest way.

                      I've a Peerless 16~PM... However-it may-explain:
                      I often-dump the-it's moisture & do-change it's oil.

                      I suspect Medium Rare knows his Compressors:
                      Can/do utilise the/it's potential for spray-painting.
                      The More I Learn... The Less I Know.
                      That Which Doesn't Change... Stays The Same.
                      Those That Don't Fall... Just Aren't Trying Hard Enough.
                      Genius or Idiot... Sadly it's Defined by the Mediocre Masses... With their Hindsight.
                      Dicklaimer... The Text above is to be Evaluated by a Responsible Person... Prior to Any Action Being Taken.

                      *George Carlin*What We Do*No Bravery*Tell the Truth*911*Genetic Armageddon*Carbon Tax*Interplanetary Climate Change*Fracking*Shock Doctrine*Extinction Protocol*

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                      • #12
                        I've actually changed the oil in my Clisby! I reckon I could do it up cheaper than a new shit one for $1800+ and then it'll last till I die.

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                        • #13
                          Originally posted by Pete40 View Post
                          I've actually changed the oil in my Clisby! I reckon I could do it up cheaper than a new shit one for $1800+ and then it'll last till I die.
                          It'll probably outlast you regardless.
                          Mine otoh, will probably shit the bed this weekend.

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                          • #14
                            I'll just put this here. The main reason why I want to swap out my cheap chinese unit.

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                            • #15
                              I do drain mine, probably once a year. Just did it, not much water and all clear, no rust.
                              IMG20210826101428.jpg

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