A welder generator air compressor combo is an all-in-one device that combines many useful tools. Welder Generator Air Compressor Combos are mostly used by mobile truck repair technicians, mobile welders, and other auto body shops.

The best welder generator air compressor combo will have a highly efficient hydraulic system, 100% copper windings, and a THD (Total Harmonic Distortion) of less than 6%.

In this article, we’ll analyze the top welder generator air compressor combos. We will rank them based on PSI, THD, CFM, HP, Design, and Watts. Those combo units are fairly expensive. Therefore, we only recommend the outright purchase for DIY and large companies.

For smaller shops, we encourage you to fill out the form below to explore comfortable financing options.  In addition, by getting a FREE no-obligation quote, you will learn more about warranty and service plans.

Best Air Compressor Generator Combos

1.Mi-T-M AGW-SH22-20M – The Industry Leader

In general, the Compressor/Generator/Welder combination improves equipment logistics and work efficiency, especially for businesses whose job requires doing precise welding in remote areas.

One of the premium products in this class is the AGW-SH22-20M model by Mi-T-M. It provides reliability and durability in extreme weather.

This versatile all-in-one solution will also save you a lot of room on your service truck. The generator operates on AC only. The power-generating unit is also equipped with a selector switch, which has two positions: Idle Down and Full Throttle.

The Generator Part

The generator is fitted with a brush-type two-pole 120V/240V alternator, and its total harmonic distortion (THD) measures less than 6%. Finally, it boasts 100% copper windings.

The welder also runs on DC only. While you are using it, the generator’s engine must be running at full throttle, meaning that the selector switch is always adjusted to full throttle. The welder’s amperage selection switch allows you to choose amperage between 170A and 220A.

The compressor’s pump is splash-lubricated, and its discharge hose is stainless-steel braided. This unit is also equipped with a large canister intake filter and an oil level sight indicator. The frame is fitted with powder-coated, ASME-coded receiver tanks and a 14-gauge powder-coated belt guard.

There is also a regulator and two gauges for the tank and outlet pressure, while the manual drain valves ensure proper maintenance. The compressor has also got a 16.5-inch flywheel.

Technical Features

  • THD less than 6%
  • 100% copper windings
  • 170A – 220A amperage switch

Mi-T-M AGW-SH22-20M Compressor/Generator/Welder, 3600 RPM

$15,242.00  in stock
Amazon.com
as of July 4, 2022 6:25 pm

Features

  • Displacement/Engine: 688cc Honda OHV with electric start (cables are included, battery not included)
  • Rated Speed: 3600 RPM
  • CFM at 175 PSI: 29.0
  • Tank: 20-gallon receiver tank
  • Maximum AC Output: 5000 watts

2.Mega 3-in-1 Air Compressor / Generator/ Welder

If you are looking for a John Deere compressor/welder/generator alternative, the Mega 3-in-1 would be your best bet.

It has a reliable motor built by Honda, so you know it’s built to last. It’s designed for service trucks, farming, and construction sites in mind. Here are some of the features: 

Compressor

The air compressor portion of the machine is run by a 13 hp Honda GX390 engine. Honda engines are known to last several hundred thousand miles in cars, so you can only imagine how many hours it would last in a compressor. 

The compressor has a 30-gallon ASME tank and can put out 18 CFM @ 175 PSI, 35 CFM @ 40 PSI, and 30 CFM @ 90 PSI. The CFM is how many cubic feet per minute of air comes from the compressor. This is plenty for you to run pneumatic tools, blow up tires, and more. 

Welder & Generator

The welder runs off of 170A, 200A max, and comes with a 15-foot welding lead. The generator portion of it has a 5.5KW output and low RPM high performance. The engine that runs everything has a 61 oz oil capacity with splash lubrication. 

  • Compressor with 14 CFM and 175 MAX PSI
  • Two-stage, belt-driven, cast iron pump
  • 3-year warranty
  • Suitable for stick welding

3-in-1 Air Compressor/Generator/Welder

$7,979.50  in stock
Amazon.com
as of July 4, 2022 6:25 pm

Features

  • 3 in 1 Air Compressor / Generator / Welder
  • 170 AMP WELDER
  • 18 @ 175 PSI
  • 35 @ 40 PSI
  • 5 KW Continuous out put on generator

3.CI13GEH30-GENWD – Gas Powered 3-in-1 Unit

The CI13GEH30-GENWD Air Compressor/Generator/Welder’s heart is a 13 HP gasoline-powered Honda engine. When it is in operation, you should not worry about negative vibration effects, because this multi-purpose machine is fitted with high-quality anti-vibration pads.

During heavy-duty services, the after cooler belt guard and a premium-class air filter help to protect the unit’s engine. The automatic tank drain function ensures easy maintenance.

At the same time, the mounted and wired onboard battery exempts you from doing any wiring to the front of your truck. For extra security while in use, all critical controls protected by the compressor base plate.

The drive engine is mounted on the left side for easy startup and has also been fitted with an alternator. Its valves are made of Swedish steel, and also has NSK needle bearings.

Industrial Gold Platinum Series CI13GEH30-GENWD

Technical Specifications:

  • Compressor with 30-gal Horizontal Tank 
  • 19 CFM
  • Two-stage cast iron pump
  • Bearings on both ends of the crankshaft
  • Centrifugal unloader

4.Case BCAC1330HGW Compressor/Welder/Generator

The Case bcac1330hgw Compressor/Generator/Welder is a powerful unit that can withstand even the toughest of jobs whether on a farm, at home, or on a service truck. It has many features that would come in handy. 

Motor

The Case bcac1330hgw comes with a Honda OHV GX390 engine, which is about 389cc. The Honda engines are one of the most reliable and durable in the industry. This compressor/welder/generator can run for thousands of hours if properly maintained. 

Compressor & Welder

The compressor runs off of the Honda Motor and can put out 22 CFM @ 100 PSI and 19 CFM @ 175 PSI. This should give you plenty of air pressure to handle all of your applications at once. There are controls on the side of the machine so you can adjust pressure as needed. 

When it comes to the welder, it has a 5500 max AX output and a 5000 AC continuous output. There will be 250 amps @ 70% for the duty cycle. Additionally, the amp range is 180A-250A. 

Compressor Mounted On F-150

5.Air N Arc 150 All-In-One Power System

The Air N Arc 150 All-In-One Power System is full of features that make this unit a powerhouse. It is an air compressor, generator, welder, has a battery boost, and battery charge. The unit is made with galvanized steel metal for maximum durability. Here is what else it has to offer:

Compressor

The compressor is constructed with a cast iron air pump with a three-cylinder head design. This allows the unit to cool more efficiently, leading to a longer lifespan and minimal maintenance. It puts out 20 CFM @ 150 PSI thanks to the 14 hp Kohler engine. It has a 10-gallon air storage tank for a longer working time. 

Welder

The welder is its most notable feature. It has patented Amperage and Power controls built right into the lead for ease of use for the 14 and 19 hp machines.

There are no preset settings, which may be inconvenient for some, but there is a 100% controlled variable. It offers auto throttle control and safe multi-function use. The machine can provide 40-190 Amps of welding power. 

Generator

The generator portion of the machine has a 5kW peak, is a single-phase, and is a true two system that allows you to use multiple functions of both the welder and electric tools. It is a brushless design and has a smooth wave for minimal distortion. There are two 120V outlets on the side of the machine as well as a 240V outlet. 

6.Campbell Hausfeld 120/250V 

Last on the list is the Campbell Hausfeld 120/250V Generator/Compressor/Welder. It’s the ideal product for job sites and work trucks. It is highly reliable and designed for high output processes.

It features a 30-gallon air tank and a two-stage, cast[iron compressor. Here’s what else it has to offer: 

Engine

The engine is a 13 hp Honda GX-390. These engines are specifically engineered with performance and reliability in mind.

They deliver long operating life and are unbelievably economical. Honda engines have always been known to last longer than most other engines on the market. 

Compressor/Generator

The air compressor and 5000 Watt generator portion of the unit has a control panel that is both OSHA compliant and UL certified. There are two electrical outlets on the unit that are GFCI protected.

Additionally, there is a heavy-duty, 14-gauge steel belt guard that can be quickly removed to perform the required maintenance. 

The air compressor has a 15.2 CFM @ 40 PSI and 14 CFM @ 90 PSI. The max PSI is 175 and the max CFM is 13.7 @ 175 PSI. This compressor is loud, coming in at 92 Decibels @ 3-feet. 

Welder

This is a stick welder. It has a max AMp output of 200 amps and a 100% @ 150A and 65% @ 180A duty cycle. It can weld a maximum thickness of 19 Ga to ⅜” steel. The welder electrode diameter is 0.06” to 0.25”. 

Truck Mounted Air Compressor Generator Combos

As their name suggests, these combo units operate on a repair vehicle, and in this way they are ultra-mobile. Welder/generators have many ways they work on trucks, and their remote-control functionality adds further flexibility.

Most machines in this class now offer battery charger/jump-starter options, which is important to professionals in construction-related industries. Some models feature a 12-V charge and or a12V/24-V boost. This enables the driver to jump-start their truck’s engine.

At the same time, the auxiliary power system can maintain the truck’s battery. It can provide enough power for repair works and the vehicle’s emergency lights, while the truck engine is off saving on fuel and operating costs.

7.EnPak A60HGE

Hydraulic control functions are relatively new when we speak of truck-mounted combo units. Miller came to the market with its EnPak® A60HGE.

Albeit it does not feature a built-in welder, it does include hydraulic functionality for powering service truck cranes, and a Hydraulic Tool Control (HTC) for operating independent hydraulic tools.

EnPak A60HGE

Technical Specs

  • Up to 30% more fuel-efficient compared to similar products
  • Air compressor with 60 CFM
  • MIG, TIG, and Stick Welds
  • 6,000-watt generator

8.Van air’s I-300

Van air’s I-300 has a built-in welder with a variable displacement hydraulic piston pump. It is compatible with both the open center and closed center systems.

Vanair’s I-300

Selecting the right machine boils down to having a practical understanding of the specific demands of the job that needs to be done.

Features

  • 40 CFM rotary screw compressor
  • 7 kW AC generator
  • 300 AMP welder
  • 13 GPM hydraulic pump

9.Campbell Hausfeld 3-in-1 – Most Reliable 3-in-1 Combo

The Campbell Hausfeld’s 3-in-1 air compressor/generator/welder (GR3100) is ideal for job sites and work trucks whenever you need to carry out construction and repair jobs off the grid. This unit is designed for high productivity and the utmost reliability.

It has a two-stage, cast-iron air compressor that fills twin 5-gallon air tanks, providing a total air capacity of 10 gallons and 14 CFM @ 90 PSI and 175 maximum PSI to power up a wide variety of pneumatic tools.

The sturdy generator provides 5,000 continuous watts of 120V and 240V AC power to operate most electric tools and lights. The DC welder delivers 180 amps of power to weld up to 1/2-inch thick steel. 

The heart of the unit is a Honda GX390 engine which operates for a long life of economic, reliable performance. Built with safety in mind, this unit has a control panel that’s OSHA compliant certified, while the electrical outlets are GFCI protected.

The units’ heavy-duty, 14-gauge steel belt can be quickly removed to provide access to routine maintenance checkups. 

Technical Features:

  • Compressor with 14 CFM and 175 MAX PSI
  • Two-stage, belt-driven, cast iron pump
  • 3-year warranty
  • Suitable for stick welding

Campbell Hausfeld 3-in-1 Truck Mount 30 Gallon Air Compressor/Generator/Welder GR3200

 out of stock
Amazon.com
as of July 4, 2022 6:25 pm

Features

BindingMisc.
BrandCampbell Hausfeld
LabelCampbell Hausfeld
ManufacturerCampbell Hausfeld
MPNGR3200
Part NumberGR3200
Product GroupHome Improvement
Product Type NameTOOLS
PublisherCampbell Hausfeld
StudioCampbell Hausfeld
TitleCampbell Hausfeld 3-in-1 Truck Mount 30 Gallon Air Compressor/Generator/Welder GR3200

10. Air Pak CC/CV Generator Welder 750A & Air Compressor

The Air Pak CC/CV machine is an all-in-one package. It has a generator, welder, and compressor built into one unit. It can handle any welding process you need it to and can be mounted to a truck.

Here are some other perks that come with the machine: 

Powerful Engine

The Air Pak is run by a 64 hp Deutz Diesel engine. This turbocharged four-cylinder engine provides the machine with all the power it needs while at high altitudes. It has a life expectancy of about 30,000 working hours. 

Compressor

The air compressor is run by Ingersoll-Rand heavy-duty, reliable components. It is belt-driven and has an automatic belt tensioner. There are independent compressor controls, which includes a handy on/off switch for applications that don’t require the use of compressed air. 

When idling, the compressor puts out 60 CFM @ 100 PSI, 40 CFM @ 90 PSI, and only 70 Decibels of sound.

This is lower than a lawnmower, so no earplugs are needed. At maximum output, there will be 79 Decibels of sound. Additionally, the tank can hold 21 gallons of compressed air. 

Welder/Generator

The welder is a stick welder and there is a Hot Start function. This function provides positive electrodes to make it simpler to start different types of electrodes. There is also an Arc-drive, which makes welding even easier.

Additionally, it automatically enhances stick welding, especially when working on a pipe. You will get 3 kVa/kW of auxiliary power when welding. As for the generator, it is AC-driven. 

11.Thunder Creek Welder/Compressor/Generator

The Thunder Creek Welder Compressor Generator, previously the Air N Arc 150, offers more power than the previous.

This enables the machine to weld through ⅜-inch thick steel. This is a handy 3-in-1 welder/compressor/generator that can help you get the job done. Here are some other features that Thunder Creek brings to the table: 

Reliable Engine

Since this is a 3-in-1 machine that can run all three functions simultaneously, it needs a powerful engine to go with it.

It’s equipped with a 14 hp Kohler engine. It has an electric start and throttles control. The throttle control allows the machine to get the right amount of power for each function, whether using just one or all three. 

Generator

This is a 5000 W capacitor-style generator. It offers you a much longer machine life than that of the traditional brush-style generator.

It is powered through two 110V outlets and a 230V outlet. The True 2 generator system allows you to weld and uses the power source at the same time.

This means that you can have a grinder hooked up for rust removal while you are welding. This allows you to get the job done quickly and then you can move right onto the next task. 

Welder

The welder has 150A with 20-foot leads included. Most of their competitors do not include the leads with their products. The lead is packed full of features including amperage control, boost button, and a button for the strike. 

Compressor

The compressor is a 20 CFM reciprocating air compressor. It’s the largest in its class by over 25% and it cools a lot quicker and more efficiently than the competitors.

There are dual 5-gallon tanks, giving you 10-gallons of storage in full. The compressor puts out 125 max PSI working pressure. 



Portable Generator Air Compressor Combo Units

The air compressor/generator combination unit is two pieces of equipment in one convenient machine. Customers can use this machine to power lights and fans, as well as run air and electric tools on the same job site. 

These units are built to suit any customer’s needs. Available in 8 and 30-gallon air capacity, gas, and diesel-powered, with single and two-stage compressors. These units also come with an electric start option.

Who Uses Air Compressor Welder Generator Combo?

They are indispensable for road repair and maintenance professionals, as well as for those working in the sectors of road assistance and heavy machinery repair and maintenance.

Those portable power stations help provide more responsive jump starters and faster battery chargers.

These combo units make service and repair teams much more effective, while considerably lowering their total costs and fuel consumption.

Below I am going to discuss some of the most popular types of air compressor generator combo units with a focus on the best product in each class.

When Compressor-Generator-Welder System is Needed?

  • Mobile heavy-duty mechanics & repairs
  • Welding trucks
  • Massive equipment repair operations in remote areas
  • Remote access jobs in mining, logging, and oil & gas

Both stick and self-shielded flux-cored provide their weld protection (wire processes that require gas shielding need extra equipment and are subject to the wind blowing away the shielding). 

While all welder/generators can cope with stick welding, wire processes can run only with a constant voltage (CV) output, to work optimally with wire feeders or spool guns.

2 in 1 Air Compressor Generator Units

This is a unique piece of equipment that can be an invaluable tool for any contractor because it combines two vital pieces of equipment – portable power and industrial air compression. The uses are endless for contractors, professional remodel, and do-it-yourselfers.

Whether you need to bring electricity to a Jobsite or adverse weather has taken out your house power, the Campbell Hausfeld 2-in-1 air compressor/generator with a Honda engine will provide enough compressed air and electric power to meet all of your needs.

For basic Jobsite tools, you will need 2,400 watts or pure 120-V, 60-hertz generator power completely separate from the machine’s standard generator, and this will allow you to operate tools below that capacity without the machine ever leaving idle. 

Most Common Applications of Campbell Hausfeld 2-in-1 air compressor/generator

It is perfect for commercial and industrial applications on the Jobsite and mobile services. This unit’s heart is a reliable Honda GX390 gas engine. The two-stage cast iron air compressor delivers high output and reliability, with twin 5-gallon air tanks and a heavy-duty steel belt guard for safety. 

Technical Specifications

  • 5,000-Watt generator with UL/OSHA compliant control panel 
  • Three outlets with GFCI protection. 
  • Dimensions: 49.8in.L x 26in.W x 34.5in.H.

This unit can power up a wide variety of power tools on remote job sites, as well as more essential tools and equipment that generally require higher outputs. That’s why it’s essential to know the difference between peak and continuous power and how it relates to your tools. 

For instance, peak wattage correlates to startup power — the energy required to get the tool cranking. Continuous watts refer to the force needed to run the tool.

Towable Air Compressor Generator Units

The towable air compressor generator units are a subdivision of the 2 In 1 Air Compressor Generator Units discussed above. In general, and they fall into two main categories – stationary and towable.

The latter is towed by a heavy-duty truck or other vehicles of that nature and is indispensable to professionals, whose job involves repairing heavy machines and expensive equipment in remote areas.

EPAuto 12V DC Portable Air Compressor Pump, Digital Tire Inflator

The easy startup, safety, and security are the essential features of these machines, which are also of great help on construction and work-sites around the world. The best models always appear with starter motor protection and anti-air lock systems.

Diesel Air Compressor Generator Units 

The diesel-powered air/compressor/generator solutions are cheap to operate, but they are not very environmentally friendly. Also, when operated in winter conditions, starting them up may become a challenge.

Buyer’s Guide: What To Look For When Buying One 

Power Efficiency

Auxiliary power is one of the tops of a welder/generator owner’s most important features. It gives contractors the versatility to operate lots of hand tools.

Fuel efficiency should be a top purchase driver for anyone running engine-driven equipment. Any engine-driven generator will use one of three fuel types, namely gasoline, diesel, or liquid propane (LPG.)

Gas Engines

Most small and portable units run on gasoline. Gas engines typically yield a relatively low fuel consumption, and they start easier to use in cold weather.

Also, gasoline is the most popular fuel type compared to diesel or propane. The engines of these models are generally small with a capacity of between 7 HP and 9 HP, so they are not suitable for powering up bigger pneumatic tools.

Diesel Engines

Diesel is the more affordable fuel type and provides the longest run-time. If the fuel is at the site, the chances are that you will need a diesel engine.

These engines are robust and with a big output of over 13 HP. Hence, they can power up huge pneumatic drills and other massive tools.

Propane-powered Engines

These are the cleanest of all compressor welder generator combo units currently available on the market, but they are also the priciest. I

n general, investors frown at the perspective of putting so many funds into a system whose power output isn’t significantly greater than that of most gasoline-powered combo sets.

Weight & Design

In general, the more powerful unit you need, the bigger and heavier it will be. Because welding power increases with the addition of various parts that are by no means lightweight.

The design of your three-way combo system may also affect its total weight. Compressor/Generator/Welder units come in two most popular designs. The first type is an open or tube frame, and the second has an enclosed casing.

Tube frame welders typically weigh less than enclosed ones, and they are also more compact. However, enclosed casings offer better protection to engine components, and their noise levels also tend to be lower.


Welding Capacity

When shopping around for a 3-in-one combo unit, you should ask for one that can carry out TIG or MIG welds at 150 amps or lower. The power source should provide at least 300 amps of multi-process welding power at 100 percent duty cycle,  and at least 10,000 watts of generator power.

For maximum efficiency TIG welding, you will likely have to purchase a TIG torch complete with collets, nozzles, and tungsten electrodes in a variety of sizes. The foot control pedal for the torch current control is also available separately.

For optimal stick welding, you will need a stick welding cable set that includes an electrode cable with a holder and a working cable with a clamp. The extension cable should be at least 30 feet long.

Frequently Asked Questions 

Below, some of the most frequently asked questions about air compressor/welder/generator units and their most relevant answers.

Are all units with equal welding/power generating capabilities?

No. Some units deliver higher electric power output at the expense of the compressor or welding functions. Others do better with the welds, but their compressors aren’t very powerful.

What is the standard warranty on the most popular Compressor/Generator/Welder units? 

Our research has revealed that most such units come with a standard warranty of at least two years. There may be a more extended warranty on some components such as, for instance, the compressor’s pump.

Where can I buy a Compressor/Generator/Welder unit?

From the analysis of or expert, these multi-purpose machines are mostly purchased from their respective manufacturers and authorized dealers. Three-way compressor/welder/generator units can still be found on Amazon (See the top section).

Welder generators such as Miller’s Bobcat 250, Lincoln Electric’s Ranger 225 Welder/Generator can be purchased from Amazon, but these lack the compressor function. For industrial use, we recommend contacting the manufacturer for the best deals.

Miller Bobcat 250 Diesel Engine-Driven Welder / Generator 907565

Final Words

In general, these machines are versatile, power efficiency, and sturdiness in mind. They usually operate in hostile environments, where both men and equipment are the ultimate tests of endurance.

The combinations of air compressor & generator and generator & welder are also possible. Still, there isn’t a unit with just a compressor and welder, as the latter needs a generator to power it up. Of these combinations, there are stationary, towable, and portable versions, with the latest being also the rarest.

In general, these units are heavy and aren’t meant to be carried around single-handedly. They are for strictly professional use and not for DIY purposes.