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Air tools & Compressor

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dave.thompson(at)verizon.
Guest

Posted: Sat May 20, 2006 9:12 pm Post subject: Air tools & Compressor

Hi Guys,



I'm building a Corvair conversion using WW's manual. After I get it running,

I plan to purchase a 601XL kit. Meanwhile, I'm tooling up.



 



I got a great deal on an assorted box of "Asian sheet metal air tools"; die

grinders, saws, shears, rivet guns/squeezers & stuff. Not all new or of the

best quality. I plan to take advantage of them anyway. I know they are

cheep, but If I like a tool and it breaks, I'll replace it with a high

quality one. My current air compressor is a 1 hp and needs to be upgraded.



 



My question is:



 



What CFM & HP do you guys suggest I look into for my new air compressor? The

specs are overwhelming. I've been considering a 5 HP 6.5 CFM (at) 90PSI,

120VAC, at about $300.00.  Should that be enough for the tools that I'll

need? I need to install a dedicated outlet anyway so 220VAC is not an issue.

I've got a very small shop and it needs to have wheels.



 



 



Dave Thompson



dave.thompson(at)verizon.net



Do not archive

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craig(at)craigandjean.com
Guest

Posted: Sat May 20, 2006 9:27 pm Post subject: Air tools & Compressor

This is a quote I kept from a message John Bolding sent in September of

2005:



"Actually the single stage compressors make MORE cfm at lower pressure and

will pump up FASTER to their limit of 100-125 psi (depending on pump and

pressure setting). If you don't need 175 psi, single stage compressors give

you more volume for the hp. Had to explain the above to MANY plant engineers

over my 32 yrs of selling air compressors in the industrial market.

Buy the best air compressor you can afford, it will be a tool you will use

for life.  LOW &SLOW  John Bolding"



-- Craig

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p.mulwitz(at)worldnet.att
Guest

Posted: Sun May 21, 2006 2:18 am Post subject: Air tools & Compressor

Perhaps the type of compressor is more important than the actual 

numbers.  The compressors with belt drive are a lot quieter than the 

ones with direct drive.  The belt drive ones are also a bit more 

expensive and generally have higher ratings for SCFM.  I just got a 

new one from Canada (Eagle brand?) with wheels that cost around $250.



Paul

XL wings

do not archive



At 10:05 PM 5/20/2006, you wrote:

 	  Quote: 	
		  What CFM & HP do you guys suggest I look into for my new air compressor? The

specs are overwhelming. I've been considering a 5 HP 6.5 CFM (at) 90PSI,

120VAC, at about $300.00.  Should that be enough for the tools that I'll

need? I need to install a dedicated outlet anyway so 220VAC is not an issue.

I've got a very small shop and it needs to have wheels.


	


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taffy0687(at)yahoo.com
Guest

Posted: Sun May 21, 2006 5:20 am Post subject: Air tools & Compressor

Dave----- my compressor is a:

   Sears Craftsman, 6 hp, 30 gal, 6.4 scfm(at) 90psi., 120 v. 15 amp  ( all data taken off unit) and works great for the task at hand.  It is an upright model.  Doesn't take much room and is easy to move. Mine was about $300 and I consider it a great unit for the price-------- a little noisy when pumping up, but with the 30 gal tank it doesn't start very often.

  Fritz------- Corvair, N93FL (reserved)

  do not archive



Dave Thompson <dave.thompson(at)verizon.net> wrote:

  



Hi Guys,



My question is:



What CFM & HP do you guys suggest I look into for my new air compressor? The

specs are overwhelming. I've been considering a 5 HP 6.5 CFM (at) 90PSI,

120VAC, at about $300.00. Should that be enough for the tools that I'll

need? I need to install a dedicated outlet anyway so 220VAC is not an issue.

I've got a very small shop and it needs to have wheels.



Dave Thompson



dave.thompson(at)verizon.net



Do not archive

		

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stutzman(at)stutzman.com
Guest

Posted: Sun May 21, 2006 8:07 am Post subject: Air tools & Compressor

On Sun, 21 May 2006, Big Gee wrote:



 	  Quote: 	
		   Dave----- my compressor is a:

    Sears Craftsman, 6 hp, 30 gal, 6.4 scfm(at) 90psi., 120 v. 15 amp ( all

 data taken off unit) and works great for the task at hand.  It is an

 upright model.


	


1 hp (electric) = 746 watts



120 volts * 15 amp = 1800 watts.



So your compressor motor is actually only 2.4 HP.  This is not surprising,

there is all sorts of weird claims when manufactures (of almost any

kind of power tool) state their horsepower.



Frank Stutzman

Bonanza N494B     "Hula Girl"

Hood River, OR

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frank.hinde(at)hp.com
Guest

Posted: Sun May 21, 2006 4:40 pm Post subject: Air tools & Compressor

I have the sears 6hp oil free direct drive....The note about HP claims

is well put..they call it "Peak HP"...This of course is complete

nonsense there really is no such thing as "Peak HP". Anyway, mine is the

biggest 120V model they make and is probably rated around 2HP.



Having said that, it does everything I ever need...On the RV there is a

lot of work requiring the use of die grinders that use a lot of air and

this machine has never failed to keep up.

The other thing is it is an oil free machine, Oil free machines have a

reputation for wearing out fast but I wanted a mchine that I could use

for spraying paint at the end of the project. An oil free compressor is

by far the simplest way to spray paint.



Now here is the best part...I have made fresh air breathing system

feeding compressor air to the upstream side of a high quality

respirator. I took a sample of air and had it tested in our lab for

contaminants. Came out just fine and perfectly adequate to breathe.



So that is how I am spraying the cyanide laden paints.



The downside of oil free is you need to drop a drop of oil in the air

tools occasionally...But $8 for a die grinder I kind of forgot!



I'm nearing the end of the RV project and the machine is running just

fine...Solid rivets take a LOT more air than pop rivets so it bodes well

for lasting thru a zodiac project. The machine is noisy and you would be

well advised to put it in a separate room.



Frank



At 10:05 PM 5/20/2006, you wrote:

 	  Quote: 	
		  What CFM & HP do you guys suggest I look into for my new air 

compressor? The specs are overwhelming. I've been considering a 5 HP 

6.5 CFM (at) 90PSI, 120VAC, at about $300.00.  Should that be enough for 

the tools that I'll need? I need to install a dedicated outlet anyway

so 220VAC is not an issue.
	


 	  Quote: 	
		  I've got a very small shop and it needs to have wheels.


	


-

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dclaytx2(at)hotmail.com
Guest

Posted: Sun May 21, 2006 9:16 pm Post subject: Air tools & Compressor

Hey Dave,



I'm using a $99 air compressor I got from Harbor Freight that works great. 

It has a 2.5HP motor and delivers 120PSI at 5.6CFM. The item number is 

90385-4VGA. I have had absolutely no problems with the compressor or the $39 

rivet gun I also purchased from Harbor Freight.



Dave Clay

Temple, TX

CH601XL Scratch builder



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davevanlanen(at)sbcglobal
Guest

Posted: Wed May 24, 2006 2:31 pm Post subject: Air tools & Compressor

Or if you don't have a separate room, or putting the compressor outside

means you need to leave the door open in the winter months, you can build a

sound deadening box around it.  I built a box with 3/4" plywood, and lined

it with Homosote on the inside.  I included intake and exhaust openings

facing away from the work area.  It is amazing the reduction in noise level.

I can now work with the compressor running, and have no problem with noise

level.



Dave Van Lanen

Madison, WI

601XL - Stabilizer

Time: 05:40:52 PM PST US

Subject: RE: Air tools & Compressor

From: "Hinde, Frank George (Corvallis)" <frank.hinde(at)hp.com>




<frank.hinde(at)hp.com>



I have the sears 6hp oil free direct drive.......

...........for lasting thru a zodiac project. The machine is noisy and you

would be

well advised to put it in a separate room.



Frank

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Chris Lewis

Joined: 17 Mar 2006
Posts: 56
Location: Seattle

Posted: Thu May 25, 2006 5:47 am Post subject: Re: Air tools & Compressor

You can also use a Filter Silencer like the one shown in the attachment. I got mine at Grainger and it helped quiet down my Home Depot 30 gallon unit.



Chris in Seattle

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Filter Silencer

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