Air Compressor Spring Valve - 1   2   3   4   5
4 Horsepower 4 Gallon Oiled Twin Hot Dog Gas Compressor | Thomas TG-400HST
Thomas Compressors TG-400HST
$999.00
by Thomas Compressors

Fuel Capacity .66 Gal.
Engine Honda GX120 4 HP OHV Gas
Pressure Switch Continuous run unloader valve with idle down - Unloads @135 PSI, Loads @ 115 PSI
Air Delivery 5.4 CFM @ 100 PSI
Air Displacement 12.4 CFM

found in TG-400HST's description:

Longer Life - With the patented LifeGuard™ dirt deflector that keeps job site dust and grit out of the compressor, the new Renegade® will perform year after year

Engine - Cast iron cylinder sleeve extends life of engine

Perma-lube oil-less design for maintenance-free operation and quick cold weather starts

Designed for Maintenance-free operation with no belts, belt guards or pulleys, which also means less vulnerability to job site damage

High performance overhead valve design for added power and high efficiency

.
found in TG-400HST's reviews:
Air Cube 1 - This compressor is a contractor's dream.4 CFM @ 100 PSI air delivery. This 1-1/2 foot cube gas compressor fits in the trunk of a midsize vehicle. This is the only gas power compressor that I have worked with that a single average size person can move (alone). The engine optimizes fuel efficiency by automatically slowing to an ideal speed when the air tanks are full.

The engine, even while operating faster to fill the air tanks, is relatively quiet allowing a normal conversation a few feet away. It is quieter than the pancake compressors I have used.

Each air tank has a separate moisture drain valve to keep the tanks from rusting on the inside.

* The air regulator comes with two 1/4" female NPT thread connections. Since I could not remove the stripped hex plug, I used the air gage connection to add a tee.

8 HP Wheelbarrow Compressor | Emglo MG8HGA-8P
Emglo MG8HGA-8P
$1,877.00
by Emglo

Enclosed steel belt guard
Four-cylinder cast-iron pump
1/4 npt soft-seat drain valve
Bullwhip idle control
Integrated control panel
5.5 HP Wheelbarrow Compressor with Bracket & Regulator | Emglo MK5HGA-8P
Emglo MK5HGA-8P
$1,179.00
by Emglo

Powered by 5.5 hp Honda engine
1/4 npt soft seat drain valve
Bullwhip idle control
Integrated control panel
2 cylinder cast iron pump
1-1/2 Horsepower Dual Control Wheelbarrow Compressor with Bracket and Regulator | Emglo MK15A8P-DVS
Emglo MK15A8P-DVS
$N/A
by Emglo

2 cylinder cast iron pump
Dual voltage switch
1/4 npt soft seat drain valve
Oil lubricated
Dual control switch
2 Horsepower Wheelbarrow Compressor (with Dual Control/Voltage) | Emglo MK2A8P-DVS
Emglo MK2A8P-DVS
$1,039.00
by Emglo

2 cylinder cast iron pump
Integrated control panel
Dual voltage switch
Dual control
1/4 NPT soft seat drain valve
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
13 Amp 2-1/2 Horsepower 4 Gallon Oiled Twin Hot Dog Compressor | Makita MAC2400
Makita MAC2400
$460.00 >> $249.00
by Makita

19-3/8 by 18 by 18-3/4 inches; 77 pounds; 1-year warranty
1/4-inch brass Makita universal coupler
Cast-iron pump and roll cage construction
4.2 cfm delivered at 90 psi; low 1,720 rpm extends motor life and lowers noise
13 amp, 2-1/2-horsepower, 4-gallon oiled twin hot dog compressor with handle

found in MAC2400's description: From the Manufacturer
The new MAC2400 - Twin Stack air compressor by Makita is blowing away the competition.3 amps to operate, a lower 1720 RPM rating and a heavy duty Intake Air Filter system like no other, its easy to see how this unit will out last and outperform everyone else.2CFM @ 90PSI and is equipped with a lever handled ball valve drain system to get rid of condensation build up in the tank . Large automotive style industrial air filter for increased air intake and greater efficiency. Lever handle ball valve - tank drain valve improves upon standard petcock design for easier maintenance.
The Hotdog 12.4 Amp 2 Horsepower 2-1/2 Gallon Oiled Single Hotdog Compressor | Makita MAC700
Makita MAC700
$288.00 >> $176.40
by Makita

18 by 10 by 22 inches; 52 pounds; 1-year warranty
1/4-inch brass Makita universal coupler
Cast-iron pump and roll cage construction
3.3 cfm delivered at 90 psi; low 1,720 rpm extends motor life and lowers noise
12.4 amp, 2-horsepower, 2-1/2-gallon oiled single hot dog compressor with handle

found in MAC700's description: From the Manufacturer
The new MAC700 - Hotdog compressor by Makita is blowing away the competition with built-in features such as a super quiet motor that draws only 12.3CFM @ 90PSI and a lever handled ball valve drain system to get rid of condensation build up in the tank .0HP AIR COMPRESSOR 12. hot dog tank Low amp draw & oil lubricated Roll-bar handle Industrial air filter & cast iron cylinder Oil sight glass & lever handle ball valve Built-in thermal overload for motor protection MAC700 2HP AIR COMPRESSOR.
found in MAC700's reviews:
Recieved damaged, Makita service hopeless - Just received this compressor from Amazon/ToolKing.
The unloading elbow was snapped off from the check valve assy.
Makita has a problem in the packing of these compressor's which leaves the valve exposed to being crushed inside the container.The valve is on the side and all it takes is a slight bump and it's sheared off.If you need to put the compressor into service right away, I suggest buying local or
unfortunately another mfg.The compressor is quiet, and seems to
run ok, I have only done the initial start up though.Seems to be a great little compressor.
I'm going to use an easy out to remove the broken thread/stud from inside the valve and just buy the elbow locally(I hope)
You can see many other posts on the internet regarding this same problem.(supervisor)The compressor has been in service now for around 8mo.I did solder a new elbow onto a lower area of the check valve which works out better when the compressor rolls on its side.

Received Item, but can't use it yet. - BUT, because of the poor packaging, and the probable mishandling by UPS, the Unloading Valve was broken off inside the main Check Valve.
Damaged Goods -
The black plastic engine housing was cracked but remained in place, the air/condensation release valve at the base of the tank was broken off at the tank !?#%#! After a little hand work I removed what remained of the fitting, reversed and reinstalled the valve.
After repairs (seems odd to repair a brand new machine) it seems to run great, no oil or air leaks.

Arrived damaged - After opening the cardboard box that was obviously crushed, I found the plastic motor cover broked and the brass unloading elbow broken-off in the check valve attached to the side of the tank.
Another Damaged compressor - both the shroud and the unloading valve were broken (see other reviews) with no apparent damage to the shipping box.
Makita MAC700 -nice little compressor - I almost didn't order this compressor after reading all the reviews about shipping damage, but mine arrived in perfect shape.

My old pancake compressor finally died. It is resonably portable and very very quiet for a compressor. The drain valve at the bottom makes quick work of draining the tank at the end of the day.

Great little compressor - Be sure to fill with oil and install the air filter before starting. It required drilling out the check valve, retapping the threads, buying an equivalent part at the hardware store, and reinstalling. Serious PITA, but cost was minimal and repair works fine.

All in all, a great little compressor, and the best choice if noise is a concern.

Great compressor, but check the box thouroughly before signing for delivery! - After working with a friend's older version of this compressor for the last eight months, I decided to splurge and get my own. If this compressor is anything like the older model, it's going to last forever. It looks like someone must've dropped it, and from a pretty good height! One of the legs was bent about 2 inches, so the compressor would rock when set down. Fortunately, the compressor itself (external tubes and gauges and whatnot) are all fine. It's annoying, but I don't want to go through the exchange process and be without air for another two weeks.

The startup process is fairly simple. There are two plastic plugs on the compressor that need to come out. One covers the oil filler, and one covers the air intake port. You replace the plug on the air intake port (topmost plug) with the included air filter, and you replace the oil filler plug with the included oil cap. Then, open the air release valve at the very bottom of the air tank and run the compressor for 20 minutes. Check the oil level periodically, of course!

On a related note, I also bought the Campbell Hausfeld MP520010AV air tool accessory kit to get me started.

14.5 Amp 2 Horsepower 4 Gallon Oiled Twin Hot Dog Compressor | Hitachi EC12
Hitachi EC12
$417.29 >> $207.00
by Hitachi

60 pounds; 1-year warranty
Includes DEWALT synthetic compressor oil and pressure regulator
Cylinder constructed of cast iron
4.1 cfm delivered at 90 psi; shut-off valve at line and auto reset
14-1/2 amp 2-horsepower 4-gallon oiled twin hot dog compressor with carrying handle

found in EC12's description: com
Hitachi’s 2-horsepower compressor is one of the hardest-working units on the market.1 cfm of free air at 90 psi--enough to easily run two tools at once. Because of its compact size and trim weight, it’s the perfect compressor for the home do-it-yourselfer, but taking into account its power and portability, contractors will love it, too.--Kris Jensen-Van Heste

From the Manufacturer
This Hitachi air compressor is powered by a 2 hp, 115-volt direct-drive motor and oil lube pump at 3,450 rpm. It features vertically stacked twin tanks (each with a 2-gallon capacity), line regulator, shutoff valve at line, auto reset, capacitor start, run class F motor, and pressure switch set at 125 psi kick-off, 100 psi kick-on.1 cfm of free air, at 90 psi.

From the Manufacturer
The Hitachi EC12 air compressor is powered by a 2-horsepower, 115-volt direct-drive motor and oil lube pump at 3,450 rpm. It features vertically stacked twin tanks (each with a 2-gallon capacity), line regulator, shutoff valve at line, auto reset, capacitor start, run-class F motor, and pressure switch set at 125 psi kick-off and 100 psi kick-on. It delivers 4 cubic feet per minute of free air at 90 psi.3-gallon capacity
  • Comes standard with line regulator and gauges
  • O-ring on draincock makes valve easy to open and close
  • Pressure switch has start/stop control at 100 and 125 psi with 14-second recovery time
  • 15 amp motor runs at 3,450 rpm, providing 8.2 cubic feet per minute of free air

    Specifications

    • Horsepower: 2
    • Amps: 15
    • Speed: 3,450 rpm
    • Air displacement: 8. Oil lube single piston compressor type, line regulator with gauge, direct drive electric motor, suction cup feet for extra stability, O-ring on draincock makes valve easy to open and close and resists stripping, vertically stacked twin tanks.
      found in EC12's reviews:
      Disappointing - As a previous writer indicated, the gauges got stuck, the pressure release valve froze, it wouldn't start and turned out to be uneconomical to repair.
      A real turd - It now pumps up, and doesn't stop until the pressure safety valve blows, then the motor goes into some kind of cardiac arrest. Now I'm sure I'll be raped at the repair center as I spend >$100 to repair this $200 turd.
      Happy, but could be happier - The compressor is still fairly new and seems to provide excellent power for framing guns, finishing nailers, and hoppers. However, I am not incredibly impressed with this compressors ability to start. I realize during the cold winter mornings (not too cold in the San Francisco bay area), that some compressors require an empty tank to kick over, but this is getting a little ridiculous. On a 45 degree morning I don't even try to kick over the tank before making sure it is decompressed completely, and during the middle of the day I still have to, on a not-so-rare occasion, pull the pressure release valve. I have seen on another review that a Smart Start inlet filter can be purchased to cure this problem, but it's annoying that you need to buy new parts to cure problems on a new compressor.

      I guess having only one complaint for a power tool isn't too bad, but I'm sure there's a better compressor out there.

  • 15 Amps/ 8Amps 2 Horsepower 17-Gallon Electic Wheeled Portable Compressor with Dual Vo | DeWalt D55585
    DeWalt D55585
    $1,812.29 >> $849.99
    by DeWalt

    Ball valve drain allows for quick and thorough tank draining
    Dual voltage feature allows easy switching from 120 to 240 volts
    Dual control feature allows start/stop or constant run option
    Twin cylinder, cast iron, oil lubricated pump
    8.4 cfm delivered at 100 psi with 17-gallon tank

    found in D55585's description: From the Manufacturer
    You will never run short of air again with this 2-horsepower electric wheeled compressor supported by an ASME-coded 17-gallon OSHA-recognized tank. The user can quickly and completely drain the compressor by the ball valve drain, which won't clog like other models that use needle valves. The D55585 includes DeWalt's synthetic compressor oil and a 3/8-inch NPT pressure regulator.4 cubic feet per minute delivered at 100 psi, enables speedy recovery
  • Twin-cylinder, cast-iron, oil-lubricated pump with Emglo's 50 years of proven durability and reliability
  • 2-horsepower motor provides increased performance
  • Dual wheels make maneuvering easier on the worksite
  • Dual control feature allows start/stop or constant run operation
  • Dual voltage feature allows easy switching from 120- to 240-volt operation
  • ASME-coded 17-gallon OSHA-recognized tank
  • Ball valve drain allows for quick and thorough tank draining

    Specifications

    • Drive: belt drive
    • Horsepower: 2 hp
    • Tank size: 17 gallons
    • Power supply: 2-pole induction motor
    • Cubic feet per minute at 100 psi: 8.

    Includes

    • DeWalt synthetic compressor oil
    • 3/8-inch NPT pressure regulator

    Warranty
    This DeWalt high-performance industrial tool comes with a warranty package that includes:
    30-day, no-risk satisfaction guarantee
    One-year free service contract
    One-year warranty.

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