Makita Big Bore Sir Compressor

Last updated: May 28, 2019

Makita Big Bore Sir Compressor

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We looked at the top Portable Air Compressors and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Portable Air Compressor you should buy.

Overall Take

One of the best features of this model is its ability to output air without drawing heavily on power supply. That keeps utility bills low, while also reducing the risk that you'll trip a breaker. Its cast-iron components and metal cage will ensure it lasts through many uses.

In our analysis of 94 expert reviews, the Makita Big Bore Sir Compressor placed 1st when we looked at the top 10 products in the category. For the full ranking, see below.

From The Manufacturer

Makita’s 2.5HP Air Compressor is equipped with Makita’s Big Bore engineered pump cylinder and piston for higher output for two nailers, with less noise and improved job site performance. The MAC2400 delivers industrial power and results with improved durability under tough job site conditions. The MAC2400 is powered by a 2.5 HP motor. The Makita Big Bore engineered pump with cast iron cylinder has greater bore and stroke for increased compression, faster recovery and less noise. The cast iron construction is engineered for increased durability even under tough job-site conditions. The MAC2400 has an oil-lubricated pump and is equipped with a large automotive style filter for increased air intake and greater efficiency. The Big Bore oil-lubricated pump is also more efficient: the MAC2400 runs cooler and at half the RPM of most competitive units, resulting in greater motor and pump life and lower noise. The 4.2 gallon twin-stacked tank sustains an operating pressure of 130 PSI, and delivers 40PSI (4.8 CFM) and 90 PSI (4.2 CFM), enough for two nailers. The low AMP draw reduces instances of tripped breakers and voltage drop that can cause premature motor failure. The roll bar handle provides portability and additional protection, helping it withstand harsh jobsite environments. Additional features include a convenient oil drain and oil sight glass, a tank drain valve that supersedes standard petcock design for easier maintenance, and finned discharge tubing that dissipates heat more efficiently. The MAC2400 is engineered for low noise, high output and less maintenance, and delivers industrial power and results with improved durability under tough job site conditions. The MAC2400 is just another example of Makita’s commitment to innovative technology and best-in-class engineering. Makita Big Bore Air Compressors deliver higher output and less noise for improved job site performance. The Makita Big Bore engineered pump with cast iron cylinder has greater bore and stroke for increased compression, faster recovery and less noise. The cast iron construction is engineered for increased durability even under tough job site conditions. All Makita Big Bore Air Compressors are oil lubricated and equipped with large automotive style filters for increased air intake and greater efficiency. Makita Big Bore Air Compressors deliver industrial power and results with improved durability. Makita is a worldwide manufacturer of industrial quality power tools and offers a wide range of industrial accessories. Makita applies leading-edge innovation to engineer power tools that are more compact and energy efficient, yet deliver industrial strength power and results. Makita U.S.A., Inc. is located in La Mirada, California, and operates an extensive distribution network located throughout the U.S. For more information, please call 800/4-MAKITA (800/462-5482) or visit Makita is Best in Class Engineering.

Expert Reviews

What experts liked

Scores at the top of the pack in virtually every measure of performance. It's cast iron components give it an exceptional operational life.
It has metal roll cage protects the components in case the unit is bumped or dropped.
Mac2400 makes gentle use of your electrical supply at home. The 2.5 HP electric motor is designed to have a low amp draw on your supply.
The motor, though, is surprisingly quiet. Its low RPM – 1720 – adds to its longevity, and you don’t have to worry about tripping breakers. With no more than 50% duty cycle, you must give the motor a breathing space if working for longer than half an hour.
It is less noisy compared to other heavy duty machines. This makes it possible for the user to use it at any location.
- Toolez
The MAC2400 is made of cast iron which means it’s durable enough to withstand its fair share of bumps and scrapes on the busiest of construction sites.
The machine boasts a roll-cage construction and an oversized automotive style air filter designed to increase air intake and boost efficiency. Made to withstand the test of time, the air compressor also comes with built-in thermal overload and a ¼-inch universal quick coupler.
We liked this product because it is actually a very powerful compressor and it will last you years and years so you won’t need to replace it.
Most experts will tell you that having an oil-lubricated pump is important if you want longevity out of your air compressor and reduced operating temps. The Makita has this. The efficient pump is made of heavy duty cast iron and is designed for fast recovery times.

What experts didn't like

On the more expensive end,but it's high construction quality will end up saving you money in the long run.
The low tank capacity means some users won’t be able to take full advantage of the high CFM rating.
First off – the weight, 81 pounds (that’s 40 bags of sugar to you and me) is a lot to carry around, especially if you need it at one end of the house and then back at the other straight after, all a bit unnecessary really.
Outside of the house or workshop, the issues begin to rise, especially during colder conditions. Luckily for me, I never had to use it outside, but I’ve heard people say that it tripped their 15 amp breakers and that it had trouble starting.
The weight of the compressor is too much and sometimes maybe hectic moving it if the job demands.
- Toolez
However, it is worth noting that this model is made of metal and thus is on the heavier side at 77lbs.
Air filter doesn’t sit properly (hint: use teflon tape).


An air compressor is a must-have tool for any DIYer. Even if you only ever use it to make sure your vehicle tires stay properly inflated, it’s handy to have around. You can use an air compressor for everything from spray painting a wall to doing minor car repair work. But perhaps the biggest reason to buy an air compressor is to power tools like nail guns, air impact wrenches and air hammers. You can also use a portable air compressor to quickly clear debris from a work area, boosting its versatility.

In a portable air compressor, it’s important to take weight and size into consideration. Some air compressors come with wheels, but that won’t help while taking it up and down stairs. If you opt for a larger air compressor without wheels, consider purchasing a cart with wheels or casters if you need to even occasionally move it around.

You should also consider size when choosing an air compressor. Chances are, you’ll want it out of the way when it’s not in use, but some can be massive, especially for an air compressor billing itself as “portable.” Take a look at where you’ll store your air compressor, and pay close attention to dimensions to make sure you don’t end up with a space hog.

You’ll likely put your compressor through some challenges during use, especially if you’re transporting it on a daily basis. If you fear you might accidentally drop it, it might be worth it to look for a model that builds in protection against shock.

Of course, you’ll also need to consider noise. It can never hurt to have even a slight reduction, even if you aren’t concerned with disturbing neighbors. You’ll find many air compressors output between 80 and 90 decibels, but newer models cut this down as low as 75 dB. At the lowest ranges, you’ll find that people can even carry on conversations near where you’re working without extra effort.

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