Welcome to NESR! Most features of this site require registration, including replying to threads, sending private messages, starting new threads, and uploading files. Click here to register.

Page 1 of 2 12 LastLast
Results 1 to 25 of 26

Air Compressors

  1. #1

    Air Compressors


    Ok, so my brother in law stole my small craftsmen air compressor, it was only good for filling tires anyway. And I will deal with him later.. Now I need a replacement. Would like something big enough to drive 3/8 ratchet . So what size works and what brands. Thanks

    0 Not allowed! Not allowed!

  2. #2
    Rust never sleeps. whynot's Avatar
    Join Date
    May 2009
    Location
    Arlington MA
    Posts
    1,118

    Re: Air Compressors

    Will it stay in the shop, or will you take to the track or what.

    I have a Sears-Craftsman that I bought about 20 years ago, works well. 2 hp, 20 gallon tank (horizontal). It has two wheels and a handle for moving it around. 20 years ago it was $180, probably twice that now.

    It runs 3/8 ratchets and 1/2" impacts, and air drill no problem.

    Here's a Sears search of $175 +
    Access Denied

    0 Not allowed! Not allowed!
    Last edited by whynot; 05-01-17 at 11:45 AM.
    Don't believe everything you think.

  3. #3
    Lifer Falko's Avatar
    Join Date
    Mar 2010
    Location
    MoonTown
    Posts
    5,093

    Re: Air Compressors

    IF it is going to be stationary, go for an oil unit, belt drive. Much quieter than the direct drive oil-less buzz units.
    What's your price range? Ingersol makes some nice residential units. If you want something cheaper, Campbell, Craftsman, etc are all pretty much the same. I have a 40+ year old Campbell that I still run. She ain't pretty but she compresses air.

    0 Not allowed! Not allowed!
    Dad's Dream: Earn enough money to live the life that his wife and kids do.

  4. #4
    Lifer Garandman's Avatar
    Join Date
    Jun 2008
    Location
    Dorchester, MA / Mt Sunapee, NH
    Posts
    11,124

    Re: Air Compressors

    I bought a Harbor Freight 2hp, 8 gallon lube-able compressor. Don't use it a lot but it has worked well for nearly two years when called upon. Often on sale for $115, sometimes as little as $100. Portable. Spec is 4.5 SCFM @ 90 psi.

    Campbell Hausfeld is around $450 and Ingersoll $700, just couldn't justify that.

    PS. Somehow though I copied the HF site it brings you to Amazon....

    The one I have is #69667.

    0 Not allowed! Not allowed!
    Last edited by Garandman; 05-01-17 at 10:22 AM.
    If you get a thumbs down from me, pm me, it was inadvertent

  5. #5
    Senior Member capitalcrew's Avatar
    Join Date
    Feb 2017
    Location
    Albany NY
    Posts
    745

    Re: Air Compressors

    Whatever you do don't buy a new budget IR from TSC or something like that. They're all cheap junk with a jacked up price and tan and red paint on em.

    It really depends on how much air you want and what you want to do with it. How many CFMs you need? You want to be able to move it? Single or three phase? Budget? No matter what you buy you're going to want more unfortunately lol.

    0 Not allowed! Not allowed!

  6. #6

    Re: Air Compressors

    Home shop only buget is $350 or so. Just want to drive.air ratchets. If I need impacts i have a great electric one.

    0 Not allowed! Not allowed!

  7. #7
    Super Moderator TheIglu's Avatar
    Join Date
    Apr 2003
    Location
    Royalston, MA
    Age
    40
    Posts
    20,358

    Re: Air Compressors

    You can get away with a smallish one. Remember, all compressors can drive air tools. It's the question for how long before they need to "catch up" in building pressure. That's why there is a CFM rating.

    0 Not allowed! Not allowed!
    -Clayton
    2006 Suzuki SV650
    2004 Suzuki Vstrom 650
    2001 Kawasaki ZRX1200R
    1982 Honda CB750F Super Sport

  8. #8
    Member
    Join Date
    Jun 2016
    Location
    Foxboro
    Posts
    60

    Re: Air Compressors

    I'd recommend the one-and-done approach and picking up one of those 80 gallon two stage compressors. It's expensive but there is very little it can't do

    1 Not allowed! Not allowed!

  9. #9
    Lifer LuvDog's Avatar
    Join Date
    Sep 2004
    Location
    Ashland, MA
    Age
    51
    Posts
    2,752

    Re: Air Compressors

    I have an old oiless devilbliss horizontal and a harbor freight veritcal oil compressor.

    The HF verical is much quieter. The price fluctuates a lot if it's on sale.
    29 gal. 2 HP 150 PSI Cast Iron Vertical Air Compressor

    0 Not allowed! Not allowed!
    2003 ZX7R
    1995 916

  10. #10
    Lifer loudbeard's Avatar
    Join Date
    Jun 2013
    Location
    Rehoboth MA
    Age
    37
    Posts
    4,432

    Re: Air Compressors

    You're going to need a 10 horse rotary screw compressor. Anything less and you might as well use basic hand tools.

    3 Not allowed! Not allowed!
    I went to MMI I know what Im doing here chief

  11. #11
    Lifer Falko's Avatar
    Join Date
    Mar 2010
    Location
    MoonTown
    Posts
    5,093

    Re: Air Compressors

    We're pulling out two 350hp centrifugal compressors this summer. If you can wait, I can get you one, probably handle all your needs...

    Lowes always has a pretty good selection of compressors.

    0 Not allowed! Not allowed!
    Dad's Dream: Earn enough money to live the life that his wife and kids do.

  12. #12
    Lifer loudbeard's Avatar
    Join Date
    Jun 2013
    Location
    Rehoboth MA
    Age
    37
    Posts
    4,432

    Re: Air Compressors

    ^ this guy fucks

    0 Not allowed! Not allowed!
    I went to MMI I know what Im doing here chief

  13. #13
    Super Moderator TheIglu's Avatar
    Join Date
    Apr 2003
    Location
    Royalston, MA
    Age
    40
    Posts
    20,358

    Re: Air Compressors


    0 Not allowed! Not allowed!
    -Clayton
    2006 Suzuki SV650
    2004 Suzuki Vstrom 650
    2001 Kawasaki ZRX1200R
    1982 Honda CB750F Super Sport

  14. #14
    Lifer Garandman's Avatar
    Join Date
    Jun 2008
    Location
    Dorchester, MA / Mt Sunapee, NH
    Posts
    11,124

    Re: Air Compressors

    Quote Originally Posted by LuvDog View Post
    I have an old oiless devilbliss horizontal and a harbor freight veritcal oil compressor.

    The HF verical is much quieter. The price fluctuates a lot if it's on sale.
    29 gal. 2 HP 150 PSI Cast Iron Vertical Air Compressor
    We bought one of those at work. It's held up well. We also had a Craftsman Professional with similar specs, about $550.

    0 Not allowed! Not allowed!
    If you get a thumbs down from me, pm me, it was inadvertent

  15. #15
    Lifer golden chicken's Avatar
    Join Date
    Nov 2011
    Location
    Fitchburg, MA
    Posts
    1,563

    Re: Air Compressors

    I bought a couple cordless ratchets and I basically never use my air ratchets any more. Haven't made the leap to a cordless impact yet.

    1 Not allowed! Not allowed!
    What's the difference between a bolt and a screw?
    First you screw, then you bolt.

  16. #16
    Lifer ZX-12R's Avatar
    Join Date
    Sep 2004
    Location
    Candia, NH
    Age
    40
    Posts
    5,401

    Re: Air Compressors

    Quote Originally Posted by Falko View Post
    We're pulling out two 350hp centrifugal compressors this summer.
    Out of curiosity, what are the electrical service requirements for something this large?

    0 Not allowed! Not allowed!
    "...i would seriously bite somebody right in the balls..." -bump909

  17. #17
    Lifer loudbeard's Avatar
    Join Date
    Jun 2013
    Location
    Rehoboth MA
    Age
    37
    Posts
    4,432

    Re: Air Compressors

    Quote Originally Posted by ZX-12R View Post
    Out of curiosity, what are the electrical service requirements for something this large?
    At 480 volts, 3 phase, it's approximately 400 amps. Most electricians never see an installation like this.

    1 Not allowed! Not allowed!
    I went to MMI I know what Im doing here chief

  18. #18
    Angry Gumball RandyO's Avatar
    Join Date
    Jul 2001
    Location
    Farmington, NH
    Age
    68
    Posts
    14,073

    Re: Air Compressors

    all this compressor talk reminds me I need to change the oil in mine

    0 Not allowed! Not allowed!
    RandyO
    IBA#9560
    A man with a gun is a citizen
    A man without a gun is a subject

  19. #19
    Lifer Falko's Avatar
    Join Date
    Mar 2010
    Location
    MoonTown
    Posts
    5,093

    Re: Air Compressors

    Quote Originally Posted by Pinned View Post
    At 480 volts, 3 phase, it's approximately 400 amps. Most electricians never see an installation like this.
    yep, that's about right. They are being replaced with two 300hp rotary screws. Centrifugals have issues with capacity and unloading. Unless your load is constant within 10%, they aren't great, they will blow off to maintain proper pressure, not exactly efficient. These set next to a 300hp screw and a 350hp variable speed screw. Yes, much compressed air load, about 3500-4000 cfm average. This project is slated for 1.5mmkWh of savings due to a number of operational issues.
    We were also just involved with three 400hp high pressure machines (550PSI), big multi piston rigs. Those will spin your impact gun.

    0 Not allowed! Not allowed!
    Dad's Dream: Earn enough money to live the life that his wife and kids do.

  20. #20
    Lifer loudbeard's Avatar
    Join Date
    Jun 2013
    Location
    Rehoboth MA
    Age
    37
    Posts
    4,432

    Re: Air Compressors

    Quote Originally Posted by Falko View Post
    yep, that's about right. They are being replaced with two 300hp rotary screws. Centrifugals have issues with capacity and unloading. Unless your load is constant within 10%, they aren't great, they will blow off to maintain proper pressure, not exactly efficient. These set next to a 300hp screw and a 350hp variable speed screw. Yes, much compressed air load, about 3500-4000 cfm average. This project is slated for 1.5mmkWh of savings due to a number of operational issues.
    We were also just involved with three 400hp high pressure machines (550PSI), big multi piston rigs. Those will spin your impact gun.
    Sounds like you work at an interesting shop. I've spent most of my career as a project manager and control tech for industrial electrical installation, a retrofit like that is always a fun challenge. Now I just manage a maintenance and facilities department, I'm working on the owner right now to replace our shop compressor and upgrade the air line system. Our demand is small comparatively, we just run a 10 horse compressor, but I have about 1000 feet of air lines and 85% of them are rubber flex lines. Yes, the type you're only supposed to use for 5-10 feet of an equipment drop. Anyway, I was quoted surprisingly low for a nice 10 horse rotary screw compressor, less than $5k for the unit including the starter. That with a 200 gal tank and hard line upgrade and we'll have our air situation squared away.

    0 Not allowed! Not allowed!
    I went to MMI I know what Im doing here chief

  21. #21
    Burns retinas nhbubba's Avatar
    Join Date
    Jun 2011
    Location
    Seacoast NH
    Posts
    17,108

    Re: Air Compressors

    Quote Originally Posted by golden chicken View Post
    I bought a couple cordless ratchets and I basically never use my air ratchets any more. Haven't made the leap to a cordless impact yet.
    What do you like for ratchets?

    I hear great things about the Dewalt brushless impacts. I have a cheap Craftsman C3 system impact that does the trick 9/10 times. That system has a lot, even a brad nailer.. but no ratchet.

    At this point the only things I'd want a compressor for is media blasting and painting.. both are high CFM needs, naturally.

    0 Not allowed! Not allowed!

  22. #22
    Lifer Falko's Avatar
    Join Date
    Mar 2010
    Location
    MoonTown
    Posts
    5,093

    Re: Air Compressors

    Quote Originally Posted by Pinned View Post
    Sounds like you work at an interesting shop. I've spent most of my career as a project manager and control tech for industrial electrical installation, a retrofit like that is always a fun challenge. Now I just manage a maintenance and facilities department, I'm working on the owner right now to replace our shop compressor and upgrade the air line system. Our demand is small comparatively, we just run a 10 horse compressor, but I have about 1000 feet of air lines and 85% of them are rubber flex lines. Yes, the type you're only supposed to use for 5-10 feet of an equipment drop. Anyway, I was quoted surprisingly low for a nice 10 horse rotary screw compressor, less than $5k for the unit including the starter. That with a 200 gal tank and hard line upgrade and we'll have our air situation squared away.
    I don't know who your utility is, but there used to be incentives out there for compressed air storage. 200 gallon won't be substantial, but it can get you a couple bucks for simply signing an application.

    Our shop does mostly efficiency projects on all avenues of industrial systems. Compressed air is just one of the rabbits in our hat. It's a neat place to work for the most part, see a lot of different technologies.

    1 Not allowed! Not allowed!
    Dad's Dream: Earn enough money to live the life that his wife and kids do.

  23. #23
    Posting Freak OneCheekRider's Avatar
    Join Date
    Aug 2012
    Location
    LA
    Posts
    795

    Re: Air Compressors

    Quote Originally Posted by nhbubba View Post
    What do you like for ratchets?

    I hear great things about the Dewalt brushless impacts. I have a cheap Craftsman C3 system impact that does the trick 9/10 times. That system has a lot, even a brad nailer.. but no ratchet.
    Sorry to derail but Craftsman does have a ratchet for the 19.2V C3 system. I have it and it works well. Maybe it's discontinued?
    Amazon.com: Craftsman 19.2 Volt C3 Max Axess Power Ratchet (Bare Tool, Bulk Packaged): Home Improvement

    I paid a lot less for mine a few years ago though.

    The craftsman 19.2 'heavy duty' electric impact works great for my needs. I won't go pneumatic unless i have to.

    1 Not allowed! Not allowed!

  24. #24
    Angry Gumball RandyO's Avatar
    Join Date
    Jul 2001
    Location
    Farmington, NH
    Age
    68
    Posts
    14,073

    Re: Air Compressors

    nothing like a nascar tuned air wrench and a bottle of nitrogen

    0 Not allowed! Not allowed!
    RandyO
    IBA#9560
    A man with a gun is a citizen
    A man without a gun is a subject

  25. #25
    Senior Member
    Join Date
    Jun 2011
    Location
    Boston
    Posts
    436

    Air Compressors

    I just purchased a husky belt driven one.

    It was $349.99 and 20 gallons.

    Also got these 2 1/2 inch Guns.




    Sent from my iPhone using Tapatalk

    0 Not allowed! Not allowed!
    Last edited by imstuner; 05-02-17 at 10:23 PM.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •