Air Compressor Piston Ring,supplier - 1   2
Job Boss 15 Amp 3.5 Horsepower 4-1/2 Gallon Oil-Free Wheeled Single Hot Dog Compr | Porter-Cable C3151
Porter Cable C3151
$534.56
by Porter Cable

85 pounds; 1-year warranty
Includes compressor, mobility kit, and manual
Cast-iron construction
2-port removable console for remote air regulation; full roll cage to protect kit; 150 max psi
15 amp, 3-1/2-horsepower, 4-1/2-gallon oil-free wheeled single hot dog compressor with handle

found in C3151's description: com
Porter-Cable’s solved the compressor mobility problem on two levels with this tool. First, and most impressively, it’s got a two-port removable console for remote air regulation and higher air pressure right where you’re working. And the compressor itself has wheels and an extension handle, making life easier on you.

Let’s face it: This compressor’s big, heavy and loud, with a max psi of 150. You can run three or four guns at once off it with a splitter and have no air supply problems whatsoever.5 gallon, oil-free contractor style compressor is packed with features. The high-flow air regulator and two-port removable console are winning combinations for contractors. Having the ability to remove the console gives the user the opportunity to remote air regulation and gain higher air pressure closer to the job site. Air delivery at 40 PSI: 7.

What's in the Box
C3151 Job Boss Compressor, mobility kit, manual.5 gallon, oil-free contractor style compressor is packed with features. The High-flo air regulator and 2-port removable console are winning combinations for contractors. Having the ability to remove the console gives the user the opportunity to remote air regulation and gain higher air pressure closer to the job site.

Product Description
Includes Compressor, Mobility kit, ASME safety valve, Operating manual, Limited one-year warranty.
found in C3151's reviews:
From a homeowner - This is a great compressor. The manual says 15 Amps, but its more like a hair above that. The copper one that pumps the air into the reservoir. (I definitely wouldn't want to buy a second compressor for that either. Aside from those minor inconveniences (hence the 4-stars), this is a very plug-and-playable compressor for the DIY homeowner. I made the mistake of buying one of the pancake style compressors and found it a little weak for doing the basement framing.

3HP/ 4 Gallon Oiled Twin Hot Dog Compressor | Stanley Bostitch CWC200ST
Bostitch CWC200ST
$329.99 >> $279.99
by Bostitch

5.1CFM @40 and 4.0CFM @90
Synthetic pump oil for low temp operation
Dual air outlets
Cast iron pump cylinder for extreme durability
3 peak HP 15 amp induction motor

found in CWC200ST's description: From the Manufacturer
3HP Oil Lube Stack Tank Compressor.

Product Description
Portable, electric powered compressor with 3 HP, high output, heavy-duty induction motor.
found in CWC200ST's reviews:
Compressor head is OK but the extra parts are of low quality - I bought one of these compressors a couple of months ago after doing carefull research and actually going to a repair facility here in AZ that handles warranty repairs for a variety of brands. I estimate that the compressor has about 15 (fifteen) hours of use by now. You will have to tilt the compressor down and rock it side to side to get the water out, furthermore when tilted the lower drain hits the floor impedig drainage so you actually have to lift this rather heavy machine and tilt it and rockit at the same time in order to drain.
Shortly after purchasing the unit one of the Quick Disconnects on the compressor will not seal itself after the hose is taken off and will merily leak all the air out in about one minute, I had to replace that so I could use the machine. For about the last five hours of use I started to notice that if left pressurized overnight the air was gone in the morning upon closer inspection I could hear a faint hiss comming from somewhere behind the regulator It was not much just enough to leak and turn the machine on about every 15 minutes even if I did not use air. Yesterday the manual regulator prooved to be the culprit as when I started the compressor for the first time it would not hold air at all. I put my head next to it to listen for the noise of air escaping and sure enough there was a faint hisssss. While I was trying to figure out where the noise is caming from The back of the manual regulator popped loose again suddenly letting all the air escape in an instant startling me and prompting my wife to ask from the kitchen some ways away: "did you do that on purpose?" Well NO. Overall the tech was right the actuall compressor is well done I believe he said it was Italian made the rest is rather sloppy and not thought out well.

- Ingersoll Rand Electric Stationary Air Compressor - 3 HP, 10.3 CFM @ 135 PSI, 230 Volt, Model# SS3
Ingersoll Rand SS3L3
$559.99 >> $559.99
by Ingersoll Rand

Tank Size: 60 gallon vertical
Max PSI: 135 PSI
PSI: 11.3 CFM @ 90 PSI; 10.3 CFM @ 135 PSI
Volts: 230 Volts
Motor: 3 HP with thermal overload and manual reset - single phase motor

found in SS3L3's description: Product Description
Maximum air power! More delivered air (CFM) gives you the power to do the job right and in less time.
found in SS3L3's reviews:
A cheap way to get more CFM... but its still cheap. - This air compressor is identical to my Ingersoll Rand SS3L3 compressor that I purchased through Northern Tool in the early summer of 2005. This is the first air compressor that I have ever owned, so it was a learning experience from the start.

It is recommended that you purchase the IR SS3L3 startup kit as the compressor is delivered to you without any oil in it. When I plugged in the compressor to test it out, I found that the motor continued to run even as the gauge on the tank passed 130 psi.

I ran the compressor off and on for several months without any major issues. a little bit of die grinding, I rotated the tires on my car using the impact wrench and air ratchet, I used it to blow dust off my work bench and check the air in my tires on a routine basis. I bought the compressor because I have several project cars, and I would like to begin the serious work of restoring them. Recently, I have been looking at plans for a sandblasting cabinet, and I am starting to doubt that this compressor will stand up to the task of sand blasting for extended periods. Things I have learned about the compressor since its purchase that have led me to this conclusion:

1. (I swap between my compressor and my dryer on the only 230V outlet in my house). This borderline false advertising is similar to peak and RMS power ratings in audio amplifiers, though it is fairly standard operating procedure to rate motors in this fashion. Though it is quieter than a direct drive unit like the 30 gallon compressors sold at most hardware stores, 3450 RPM is still quite fast. With the pulley ratios, the compressor crank spins at 1200 RPM. Heavier duty systems might have the AC motor running at 1200-1750 RPM with the compressor running at ~700 RPM or less, resulting in a much quieter setup. There is apparently no available rebuild kit for the compressor itself, according to the local IR dealer, though they do sell gaskets and the oiling kit. It is a two cylinder, single stage compressor. The "valves" in the head are what I believe are called "reed valves", which are simply spring loaded "fingers" that cover holes in the cylinder head, and they move with the blowing/sucking of air as the pistons move in the cylinders (no mechanical actuation of the valves). The pistons are aluminum, and though I measured, I don't remember the diameter. The compressor can run fairly hot, especially when pressurizing the tank from zero pressure. I would like to add an intercooler in line to the tank as the compressed air is quite hot, and I think the compressor itself could use some more cooling. I bought some copper to fab up a larger heat sink for the compressor housing, though I haven't made it yet. The flywheel on the compressor is designed to move air over the unit, but I still think the design needs improvement. This makes me want to install a condensor between the compressor and tank). Copper tubing is used to route compressed air from the compressor to the tank, and I think some improvements could be made there, as well. One could remove the compressor to change the oil, but a better soultion would be to insert a ball valve in the oil drain plug for easy draining.

IR sells the SS5L5, which uses the same 60 gallon tank, but a 5 HP split phase 3450 RPM motor running a different two piston single stage compressor.

My biggest complaints are the use of the split phase motor, the relatively cheap design of the compressor (aluminum rods and lack of rod bearings), the flimsy pressure switch, and the cheap fittings used all over the machine. I will continue to use this unit for some time, but I am already considering either building my own low RPM, true 4-5 HP air compressor from various parts suppliers, or just purchasing a new one from a company like Eaton Compressor. Like houses, I think good advice for someone looking to buy an air compressor is "buy the most you can afford". I for one like the idea of a compressor running at a quiet 750 RPM at a mere 73 dBa, as opposed to my high revving 1200 RPM SS3L3. Meanwhile, my criticisms of this unit are based on what I'd like to see in a compressor, that is all.

3 HP, 4-Gallon Pancake Compressor | Porter-Cable CPF23400P
Porter-Cable CPF23400P
$415.00
by Porter-Cable

One Year Warranty
Supports use of all brad and finish nailers and moderate use of framing and roofing nailers
High-flow regulator allows more work at higher pressures
3 hp induction motor for quieter operation
High-pressure technology provides more usable air for longer run time

found in CPF23400P's reviews:
Maybe a good compressor, but beware of shipping - I ordered my P-C 3HP/4GAL compressor from Amazon, and their tool supplier, Tool Crib, shipped the unit to me via UPS. When I unpacked the compressor there was a broken piece of plastic in the bottom of the box.

I took the compressor to the local Porter-Cable service center and they tell me the boxes the P-C compressors come in are NOT designed to handle the rigorous treatment of UPS shipping. The compressor is very heavy and the support inside the box is just flimsy cardboard, so the unit will shift alot during UPS shipment.

Be advised about this shipping problem with this compressor.

2 HP 14.1 Amp Electric Master Series Compressor | Emglo M800-HC4V
Emglo M800-HC4V
$560.00
by Emglo

One-year warranty
Features 1/4 NPT soft seat drain valve
Rugged cast-iron cylinder provides maximum durability
Integrated high-profile panel houses regulator gauges and universal quick couplers
Powerful 2-horsepower electric motor delivers 3.8 cfm at 125 psi

found in M800-HC4V's reviews:
Handy little machine! - Because the fittings use air pressure to seal themselves, you can pull the line right out of the fitting when there is no pressure in the tanks.
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