There are many uses for an air compressor, especially if you work in the field, then having an air compressor can come in very handy. But since there are so many options available in the market. Choosing one can be a daunting task. So how should one figure out which air compressor to buy? The best thing you can do is to follow our buying guide to narrow down your choices and make your purchase.
Air compressor and its function
The most common air compressors that you will find are the piston type and the single-stage ones as these easily function at home and in a workshop as well. The gas or electric motor is what ensures that the piston moves and compresses the air and stores it into the tank. It is the piston’s job to force the air inside so that the pressure can rise. As soon as the pressure limit is reached, the compressor stops itself. As you work and you use the air, the compressor realizes the loss of pressure and starts again to rebuild it.
The two-stage air compressor comes with two pistons; this works when the first piston compresses the air and pushes it into the check value. The air then goes into the second piston which further compresses the air and pushes it into the tank. This type of air compressor is considered to be a heavy-duty one which is why they are mostly used for commercial purposes (as jobs there need more air at one single time). If you want to use more than one tool at one time, or use an air compressor constantly in your shop, then this is your best choice.
Types of Air Compressors
You may have seen stationary air compressors standing in shops or other workplaces; these are high-powered ones that have large-sized storage tanks. With this model, you can use the gas for a long time without any interruptions. The reason you see them standing on the side is that they are designed such, as reducing the amount of space they may take on the floor.
The other option is a portable air compressor that has small storage tanks. They mostly also come with wheels on the bottom or handles so that you can easily move them around. Portable air compressors have many styles available which include:
· Pancake compressors – the storage tanks are flat and round which are stuck to the bottom of the machine.
· Hot dog compressor – a single tank in a cylindrical shape, these are designed horizontally.
· Twin-stack compressors – it has two cylindrical and horizontal tanks to increase the air capacity.
· Wheelbarrow compressor – comes with handles and wheels for easy movement and also has two cylindrical tanks.
You will find that these air compressors are good for easy and fast applications. One of the smallest types of air compressors is inflators; they do not have any storage tank so the motor runs all the time to ensure that you get the air you need. They are best used to fill up tires, balls, and small flotation devices.
Features to look out for in replacement air compressor tanks
When you start narrowing down your options for an air compressor tanks, ensuring that these features are included in your choices will help you in the long run.
The best way of ensuring that an air compressor tank meets your needs is to check that the horsepower it offers keeps up with the utilization. Unfortunately, you will find some overrated HP air compressors, so to make sure that you are looking at one that offers real HP you need to check the amount of electricity it takes to run. For example, a 5 HP motor will intake around 24 amps when connected to 220 voltages; however, an overrated one will intake around 15amp when connected to 110 voltages, and the output will be 2HP only. Remember gas and electric motors will be different in terms of rating.
The rating of air pressure is mostly made in PSI (pound per square inch). As most tanks need 90 PSI to run smoothly, you will need to get a compressor that more shut-off pressure. Industrial air compressors tanks have a two-stage shut off pressure, whereas, commercial or home ones have one stage. You need to ensure that you gave enough pressure available for the tool to function properly and you will be able to maintain it accordingly.
Even though the air compressor tank size does not matter a lot, but it is still something you must consider. The tank will only store the compressed air. Depending on your job and if you want to carry it on without any interruptions, you might want to consider the size. If you have long working hours, then a bigger size will be best suited for you. But if you need to do your work in sections and can wait till the air pressure builds up again then a smaller size will suit you.
One feature you should keep a tab on is the duty cycle of an air compressor tank. This cycle is expressed as a percentage and you will know for how long you can keep the air tank running (for example, 10 minutes). If you take a hobby compressor tank of low-quality and you check that it has a 50% duty cycle, this means that you should not run the compressor for more than 5 minutes. Exceeding the time of the cycle will make the pump hot, which will, in turn, impact the life expectancy of the machine (it will lower). There are chances of severe damage to the tank as well and fixing it will cost as well. Most of the industrial compressor tanks you see have about 75% duty cycle while some have 100%, which means that you can run them for 10 minutes without stopping.
When you are compressing air, the machine and the energy produced is hot, but when it starts to cool off, water starts to condense out of it. The more you use your compressor tank and the longer you make it work, the more water will condense causing moisture issues. If you want to run a compressor continuously then the best thing to do is to get a bigger one so that you can use it for its full capacity and not have to worry about it getting too hot to produce moisture issues.
If there is too much humidity where you live, then this will also cause a lot of moisture problems for you. One of the best things you can do then is to get a moisture trap that will collect all the water on one stop. It will not disturb the working of the air compressor. The only thing you need to look at is that the air cools off before it reaches the moisture trap as it will only capture actual water and not water vapors.
You will find that many air compressor tanks have a drool-worthy deal on them. You may save a good amount of money for a machine that is locally produced, comes in a big box and looks tempting. But when you look at the other one which is a bit more expensive but comes from a well-reputed brand, which one do you choose? Remember, one of these will last you longer, while one will be more prone to damage and a short life span.
Even though saving money might seem tempting at that time, the best thing to do is to buy one that will last you longer so that you do not have to repeat purchase the replacement air compressor tank in just a short while. Make sure that you get a replacement air compressor tank that is of high quality, even if it costs a little extra, and think of it as an investment towards your future. These better brands will not break down as soon and will not get hot so much either. They will be better for you and will serve your purpose well.
Top 7 replacement air compressor tanks
Good bang for the buck!
Viair 91014 1 Gallon 4-Port Air Reservoir Tank with 1/4" NPT
Vixen Horns VXT1500 1.5 Gal/6 Port Steel Air Tank
Pro-Force FT5 5-Gallon Portable Air Tank
Metabo HPT Air Tank, Five Quick Connect Couplers, 10-Gallon Capacity, ASME Certified (UA3810AB)
Pro-LifT W-1010A Grey Air Tank - 10 Gallon Capacity
Industrial Air IT20ASME 20 gallon ASME Certified Vertical/Horizontal Air Receiver Tank
One of the best tanks you will find if you want one that does not take up too much space, yet can easily hold a good amount of pressure and let you complete your task easily.
This air compressor comes with a max working pressure of 150 PSI. So that you can easily mount it to the wall or anywhere you like, it comes with ¼ inch NPT ports (4 in total) and mounting brackets as well. Isolator bushings and mounting hardware are also included in the package. To ensure that there is no erosion, the external part of the compressor has been coated with silver. You also get a year’s warranty (for defects). However, to use the air tank you need to include a pressure release valve and a drain cock.
Max working pressure of 150 PSI
It comes with mounting brackets and hardware
One year warranty
Attaching the motor and the tank can be a little confusing.
Vixen Horns is one of the best brands available in the market that masters in making products related to compressed air.
The tank comes with 6 ports which are ¼ inch NPT. It also has an anti-corrosion coating and is made of steel with a black powder coat. The tank has been precision welded, and it comes with a working pressure of max 150 PSI. The tank also comes with fittings, pressure switch, mounting hardware, air gauge, and thread sealant.
One of the best high-quality thanks you can find, it comes fully assembled and can be used instantly.
The tank has a max working pressure of 135 PSI. It is made up of the best quality brass manifold. There is a handle included as well which is welded and is highly durable. the tanks come with pressure relief valve, air chuck, air pressure gauge, ¼ inch by 3 feet air hose, airline shutoff valve, and easy access fill valve.
Whether the compressor is far away or near the tank, the air pressure will be maintained while you complete the job. This tank is ASME certified and is ensured to serve its purpose good and proper.
The air tank can easily be connected to the motor and the nailer so that you can cover a good distance while you work. The pressure remains constant throughout. It comes with an industrial ball shut-off valve. It includes 5 quick connect couplers. The tank has a capacity of 10 gallons. A large knob installed lets you control the PSI.
It can cover a distance of 200 feet away from the compressor
If you are looking for an air tank that can easily fill your tires or other air-related products then this is the best product for you.
It comes with a rustproof lining and the tank has an enamel baked finish which makes it very durable. It includes a safety bypass system as well which is also patented. You can either use it horizontally or vertically. The pressure gauge is easy to read.
If you are looking for a durable big tank then this is your best bet as it has a 20-gallon capacity. It is manufactured by one of the best brands in the industry.
The air tank has a max working pressure of 175 PSI, is ASME certified and has 2 in 1 multi-function. It comes fully assembled and can be used instantly. You can easily keep it horizontally or vertically. It can work as a portable tank as well. It has 2 air access assemblies; one allows you to use it with an air compressor and one which allows you to carry the tank where ever you go.
Multi-function – can be portable or connected to an air compressor
A simple yet good quality air tank, this product is also ASME certified.
You can get custom designs if you request the company. it has special interior and exterior coatings which you can get. It is easily customizable, so you can get it made according to your wishes. It has an air capacity of 30 gallons.
It is stamped and registered with NBPVI
It can be customized
Air capacity of 30 gallons
It is very expensive
Air compressors have many uses and come in handy at workshops or work sites. There are many options available which are why it is best to know what you need to look out for before you purchase an replacement air compressor tank. Whichever you choose, make sure that you get one of the good brands so that it lasts you longer. Some of the best options available in the market are listed above so if you choose from any one of them, you cannot go wrong.