Can a 110 volt compressor run a 3/4" impact?

[reader2580]

Is there a 110 volt compressor that can run a 3/4" impact at full torque? I need a compressor I can keep in my converted bus to change a tire. My 3/4" Makita battery impact cannot remove the lugs.

I have a gasoline compressor with a 9 CFM pump that cannot deliver enough air to the 3/4" impact because the output from the tank is tiny. I used a 1/2" air hose with Milton V connector and the lug nut didn't even budge.

 

[fatfillup]

Its all about volume of air. With a big auxiliary tank, you would have a shot but would not be ideal.

 

[American Locomotive]

Compressor size doesn't matter. You just need a big enough outlet on the tank.

 

[Murphy4570]

Yeah, nope. You need a LOT of air to power a good 3/4 impact. 1/2" hose whip to 3/4" hose with 3/4 NPT fittings like Chicago, Bowes/Grip-Lock or other industrial fittings.

Look at the CFM requirements, that'll clue you in. Sustained air flow is what is needed. 100psi of air through a 3/8 hose isn't gonna cut it, for example.


You would need a double stage high-pressure compressor at a minimum. That means 60-80 gallon 220V single phase at minimum, on up to 120-200+ gallon 7.5-10HP 3-phase 208/440V.

Check out rotary screw compressors or high speed centrifugal compressors if you want to see what heavy industry uses. Wild stuff to see!

https://www.ingersollrandproducts.c...s/centrifugal-compressors/turbo-air-6000.html



Might I suggest you simply use a tire iron with a six foot cheater pipe? Support the tire iron with a jackstand. Every foot of added length to the lever = 100 ft-lb of extra force applied. Archimedes himself figured it all out.

 

[CompressorPros.com]

You would need a real 5HP two stage to handle a 3/4" impact if it is going to be regular use. The most you are going to get out of a 110 volt compressor is 5-7 CFM.

 

[Mr_B]

+1 on a suitable tire breaker bar setup option to break them loose .

 

[Codejack]

The absolute most you can get out of a 110V outlet @ 15 amps is about 2.5hp: 160V (RMS) * 15A = 2400W = 3.2hp, and 20% loss gives you ~2.5hp.

1 hp can move 15.59cfm @ 14.7psi, and the relationship is pretty linear, so you get ~2.5cfm @ 90psi.

2.5cfm/hp * 2.5hp = 5.25cfm.

 

[Citation]

What's the impact's state flow rate? A 30 gallon compressor with the right output should be able to drive it at least for a bit.

I just checked a 3/4 aircat. It's tested at 10cfm. So with the right fittings you could get intermediate use.

It really depends on your needs. I've run a 1/2 impact off a 4 gallon compressor. It is good for busts.

 

[Citation]

Yeah, nope. You need a LOT of air to power a good 3/4 impact. 1/2" hose whip to 3/4" hose with 3/4 NPT fittings like Chicago, Bowes/Grip-Lock or other industrial fittings.

Look at the CFM requirements, that'll clue you in. Sustained air flow is what is needed. 100psi of air through a 3/8 hose isn't gonna cut it, for example.


You would need a double stage high-pressure compressor at a minimum. That means 60-80 gallon 220V single phase at minimum, on up to 120-200+ gallon 7.5-10HP 3-phase 208/440V.

Check out rotary screw compressors or high speed centrifugal compressors if you want to see what heavy industry uses. Wild stuff to see!

https://www.ingersollrandproducts.c...s/centrifugal-compressors/turbo-air-6000.html



Might I suggest you simply use a tire iron with a six foot cheater pipe? Support the tire iron with a jackstand. Every foot of added length to the lever = 100 ft-lb of extra force applied. Archimedes himself figured it all out.

You are way over killing what is needed. A 3hp rated compressor (10-11 cfm) can just about keep up. Bigger than that and you should have no issues with intermittent work with short recovery periods (up to the duty cycle of the compressor).

 

[gdocktor3]

I use my 3/4" Aircat with a Craftsman mdl 919.176951, Portable Air Compressor, 30 gallon, 5 HP, Air Delivery: 12 SCFM at 40psi, 10 SCFM at 90psi, 240V. I do use all 1/2" hose, fittings, couplers and even regulator with it though. Whether the compressor is 110 or 240 doesn't matter. CFM is the important part.

 

[Lelandwelds]

Don't plan on being in a hurry. Big hose. Might need 5 gallon surge tank near impact.

Trying to win a bet? Alcohol involved? My daddy can beat up your daddy?

 

[bobcatdan]

It won't run it long but my 110v 30 gallon will run my 3/4" impact just fine.

 

[reader2580]

It sounds like it probably isn't going to be possible to run an impact to change tires with 110 volts. A gasoline compressor with 20 or 30 gallon tank would work, but I'm not spending $1000+ for something that takes a lot of space and might not get used for 10 years. The lug nuts on my motorhome are torqued to 475 foot pounds.

It is probably cheaper to just pay for a roadside tire change as needed rather than carry an expensive compressor. I have roadside assistance, but they can take hours or even overnight to get service. I once waited 18 hours in the middle of Wyoming to get help. Nobody wants to go out after hours to the middle of nowhere for what roadside assistance pays.

I changed my last tire with hand tools, but it took three hours with four guys. The tire guy from roadside assistance hadn't arrived by time we were done.

 

[Olafur]

Is there a 110 volt compressor that can run a 3/4" impact at full torque? I need a compressor I can keep in my converted bus to change a tire. My 3/4" Makita battery impact cannot remove the lugs.

I have a gasoline compressor with a 9 CFM pump that cannot deliver enough air to the 3/4" impact because the output from the tank is tiny. I used a 1/2" air hose with Milton V connector and the lug nut didn't even budge.

How big is the tank on your gasoline compressor?

Why not size up the outlet and by all means bypass all pressure regulators and possible bottlenecks and plumb a good size connector directly to the tank.

Really, any compressor can drive 3/4" drive impact if time is not an issue. It just needs a tank large enough to give the impact momentary pressure and flow for it to hammer few times at full output. Then you wait for the compressor to load up the tank again.

Ps
It's quite possible a 3/4" air impact will not budge the lugs on your bus and you might be much better off in emergency situation having a good 3/4" T bar and 4-5 foot pipe.

 

[reader2580]

Don't plan on being in a hurry. Big hose. Might need 5 gallon surge tank near impact.

Trying to win a bet? Alcohol involved? My daddy can beat up your daddy?

I'm trying to avoid spending 3 hours with four guys to change an 11R24.5 tire that is an inside dual. If I had a compressor with impact we could have been done in under an hour. The three hours is what happened last Wednesday evening in Utah.

 

[bob15]

Yeah, nope. You need a LOT of air to power a good 3/4 impact. 1/2" hose whip to 3/4" hose with 3/4 NPT fittings like Chicago, Bowes/Grip-Lock or other industrial fittings.

Look at the CFM requirements, that'll clue you in. Sustained air flow is what is needed. 100psi of air through a 3/8 hose isn't gonna cut it, for example.


You would need a double stage high-pressure compressor at a minimum. That means 60-80 gallon 220V single phase at minimum, on up to 120-200+ gallon 7.5-10HP 3-phase 208/440V.

Check out rotary screw compressors or high speed centrifugal compressors if you want to see what heavy industry uses. Wild stuff to see!

https://www.ingersollrandproducts.c...s/centrifugal-compressors/turbo-air-6000.html

A bit overkill to change a single tire.

Also that 9 cfm compressor can work, you just need a tank large enough to have the air capacity needed when the trigger is pulled and that the pressure inside the tank is greater than 100 psi. Not to mention enough time for the tank to fill. So yes, it is possible.

 

[American Locomotive]

Yeah, the little compressor is just fine. Connect it up to a separate portable tank with a very short 1/2" whip right to the gun with good large air fittings.

 

[Muzzy]

Waiting 18 hours for a tow truck definitely sounds like a reason to invest in a solution.

I also think an accumulator tank will get you there. If it's four hours with hand tools, waiting five minutes between lug nuts for the compressor to catch up is nothing.

 

[Lelandwelds]

Ugh. I can picture it only too well. I think the too small compressor is the best or least worst solution. A tire bead setting style surge tank with those funny couplers like the pavement breakers use might help.

Have you tried a 20 lb aluminum co2 tank with a 200 lb or so Western or Williams fixed pressure spring piston regulator? Try one with a fat short hose and no couplers or adapters.

Forty years ago, we used 12 ft and longer cheaters on breaker bars. Sometimes stuff broke.

Too bad a hammer spud wrench wont fit.

Decades ago I saw a big version of those impact driver that took big sockets. It was a beast. This is similar

https://www.amazon.com/dp/B0002NYDRG/?tag=atomicindus08-20

 

[bcradio]

The new second generation Milwaukee high torque impact has 1400 foot-pounds capability. just saying.

 

[theoldwizard1]

Its all about volume of air. With a big auxiliary tank, you would have a shot but would not be ideal.

Make that GIGANTIC, 30 gallons minimum, 60 better.

 

[BukitCase]

I have this one, use it on my tractors - bought the bare tool, already had other red stuff/batteries.

https://www.amazon.com/dp/B00GFUA6O4/?tag=atomicindus08-20

Also comes in 3/4 drive, not much higher torque, more $$ -
https://www.amazon.com/dp/B00GFTS19C/?tag=atomicindus08-20

Not a bare tool, kit incl. charger, tool, 2 batteries.

Seems like this way might be less hassle in the long run... Steve

 

[reader2580]

The new second generation Milwaukee high torque impact has 1400 foot-pounds capability. just saying.

Do you have a link or a model number? I searched all over and the best 3/4" impact I can find from Milwaukee is 1,200 ft lbs. My Makita 3/4" impact has 1,250 ft lbs which is not enough.

 

[bcradio]

Do you have a link or a model number? I searched all over and the best 3/4" impact I can find from Milwaukee is 1,200 ft lbs. My Makita 3/4" impact has 1,250 ft lbs which is not enough.

http://www.acmetools.com/shop/tools/milwaukee-2767-20?cm_cr=No+Campaign-_-Web+Activity-_-Product_IntelligentOffer-_-Product_IntellOffer-_-MILWAUKEE-2767-20-productNameLink&cm_vc=PDPZ1

 

[doctordirt]

Ok, just an idea. Have you seen the torque multiplier. Used manual to break loose then you could you use cordless as nut runner. Check amazon.

 

[MJD1]

Look into one of the truck tire torque multipliers. Use that to break them loose, and a cordless impact to run them off and on. The multipliers can be found for less than 100$ online.

 

[reader2580]

Look into one of the truck tire torque multipliers. Use that to break them loose, and a cordless impact to run them off and on. The multipliers can be found for less than 100$ online.

I have one and that is how we got the lug nuts off. It is exceeding slow compared to an impact wrench. The multiplier also bent several of the budd nuts somehow.

 

[reader2580]

http://www.acmetools.com/shop/tools/milwaukee-2767-20?cm_cr=No+Campaign-_-Web+Activity-_-Product_IntelligentOffer-_-Product_IntellOffer-_-MILWAUKEE-2767-20-productNameLink&cm_vc=PDPZ1

Ah, I assumed it was 3/4", not 1/2". Any ideas if they have a 3/4" version yet?

 

[bcradio]

Ah, I assumed it was 3/4", not 1/2". Any ideas if they have a 3/4" version yet?

They do not have one as of yet, but they may be coming out with one.

 

[Olafur]

The lug nuts on my motorhome are torqued to 475 foot pounds.

Ok, I missed this posts.
After sitting for several years lugs of this caliber can laugh at the best 3/4" air impacts backed by huge air installations. Forget cordless.

I work on this stuff.

 

[Citation]

OP, you might look at getting a high pressure nitrogen bottle. Something like a 3000 psi bottle would have PLENTY of pressure and likely sufficient air to finish the job. I was trying to find a link and one place said the large bottles are 230 standard CF of air. Consider that a 3/4 impact is rated at 10 CFM. I've known some race teams that used nitrogen at the track. Not just for the tires but because it was a portable high pressure air source.

 

[Olafur]

By the way, I suspect the truck has decent size air compressor for the brake system and some air tanks running @ 120-150 psi. It's likely you could add extra tank connected to that system (or connect directly to existing one) to drive impact gun.

 

[Farmall 1066]

Get one of these, and a quart of Stabilized fuel:

 

[chris142]

My budd lugnuts on my peterbilt were 475 ft lbs. My IR231 had no trouble getting them off when hooked to my 20 gallon unregulated tank. Got 5 off then waited on the compressor then the other 5.

 

[slow_mow]

Get this kit. I have the exact one for back-up if my 3/4 gun won't do the trick. I have yet to come across a nut it wouldn't remove.

https://www.amazon.com/XtremepowerUS-Torque-Multiplier-Saving-Wrench/dp/B00MI0DOW6/ref=sr_1_2_sspa?ie=UTF8&qid=1506571047&sr=8-2-spons&keywords=torque+multiplier&psc=1

 

[WittHay]

If your Makita 3/4 cordless won't take at least 1 outer nut off something is wrong. Maybe get a mobile truck tire guy with a 1" impact to take them off. Then buy all new outer and inner nuts, put some anti seize on them and torque them right.

On really bad trailer wheels, you can maybe get 5 off using a 1" air gun on a 60 gallon tank at 175 psi before the compressor kicks in at 150. Then you wait till the air pressure builds up to 175 psi before you take the remaining 5 off.

I assume you would like to take a spare along, and change you own tires on the road if need be. The Makita cordless should work for this purpose as long as the Budd nuts and studs are in good shape and the wheels torqued properly

 

[WittHay]

I have used a Milwaukee Fuel 3/4" impact quite often to remove rusty Budd wheels. It works better than i thought it would. Your Makita i believe has similar specs.

I use a special 3/4" drive wheel socket which does both the outer and inner. nuts. If you don't have good wheel hardware you can run into problems when the outer nut stays attached to the inner nut and comes unscrewed from the stud. Then you need a Budd nut wrench and a 4-point socket to remove the nuts from the wheel

The other thing is the nuts on the driver side are left hand thread, and a lot of impacts don't have full power in the tightening mode.

 

[Ole Slewfoot]

My 1st gen Milwaukee fuel impact will swap a wheel on our Freightliner and use one bar off a 4.0 battery doing it. Mines the 1/2" but they sell 33mm 1/2 drive sockets.

 

[tim_]

If you have 110v, this might work, maybe keeping a torque multiplier as a backup to break a stubborn nut loose: https://www.amazon.com/dp/B01BKEZDB0/?tag=atomicindus08-20

I have the prior generation, which wasn't brushless, but I've never tried it on duals.

 

[Lelandwelds]

I have never seen a torque multiplier before. Learning new stuff here.

If I spent that many hours on the side of ANY road, I think I would break loose and lube every lug nut every time before my rig left the driveway. After that roadside adventure, with my bunch, all my trips would be solo. I could sell big guy and get a Prius.

I must have lived a charmed life.