10 Things to Consider When Buying electric scroll compressor

Buying an air compressor requires time and efforts. You have to compare several brands and find the technology that suits your compressed air requirements.

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Whether you are a DIY enthusiast, a professional, or an industrial user, selecting the right air compressor is crucial for the efficiency and longevity of your tools.

By reading this air compressor buying guide, you will learn everything you need to know about compressed air before purchasing an air compressor. At the end of this blog, you will be informed enough to choose the air compressor meeting your needs.

Air compressors are versatile tools that convert power into potential energy stored in pressurized air. You can apply this compressed air to several works. Some of them are to power various pneumatic tools, from nail guns and paint sprayers to industrial machinery.

The very first factors to consider when choosing an air compressor include the capacity, measured in cubic feet per minute (CFM), pressure, expressed in pounds per square inch (PSI), and tank size.

Air capacity and air flow must be define from the very beginning, to determinate the compressor's ability to power tools. The air capacity defines the volume of air the compressor can deliver. The pressure refers at which pressure the air goes out of the compressor.

Different tools varies in terms of amount or compressed air required, as well as, at which pressure they need it. For this reason, it's essential to choose a compressor that meets or exceeds these requirements.

The tank size of an air compressor affects how long you can use your tools before the compressor needs to refill it. Larger tanks provide more air and require to be fulfill less frequently. For these reasons, they are ideal for continuous or heavy-duty use. Smaller tanks are more versatile but may require more frequent refilling.

Air compressors can be powered by electricity, gasoline, or diesel. Electric compressors are suitable for indoor use and areas with easy access to electricity.

Gasoline and diesel compressors are ideal for remote worksites where electricity may not be available. For instance, gasoline and diesel machines are widely used in constructions and agriculture applications. 

Buying an air compressor is a significant investment that can open up a world of possibilities for driving air tools with unmatched power and longevity.

By considering factors such as intended use, the capacity and pressure requirements, tank size, power source, portability, and noise levels, you can select the right air compressor.

Proper maintenance and air treatment can ensure that your air tools last a lifetime, making air compressors a worthy investment. For more detailed information, you can get in touch with our experts today.

Although the idea for a scroll compressor has been around for over 100 years, the technology is only about 50 years old. As the industry continues to advance, so does the need for reliable, clean, and oil-free compressed air. Scroll compressors are ideal in commercial applications that include: medical, pharmaceutical, food, laboratory, textile, electronics, and production facilities.

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Anywhere quiet, clean air is required, a heavy-duty scroll compressor is the only way to go. They come in a wide variety of sizes, up to 40 HP, and can produce as much as 116 CFM! Scroll compressors utilize a very innovative (spiral) design that compresses air quietly with fewer moving parts and less required maintenance. 

How Does a Scroll Compressor Work?

Scroll air compressors use two spiral-shaped scroll pieces to compress air. One scroll is stationary, meaning it's fixed in place and doesn't move, and the other fits inside the stationary scroll and is moved in a tight circular motion without rotating. The moving scroll presses against the inside of the stationary scroll in such a way that, as it moves in a circular motion, it pushes and traps air into small pockets between the two.

The pockets of air continue being moved through the spiral toward the center. As the air moves further toward the center of the spirals, the air pockets become smaller, and the air in those pockets gets compressed.

Once the compressed air pockets reach the center, they're released into a discharge pipe to be used, or they're released into an air treatment system. An air treatment system is not included with the scroll compressor, as it's typically custom-created with the necessary components to serve the user's desired purpose.

The air treatment system utilizes air delivery piping to deliver the compressed air from the compressor, through a series of filters and dryers, into a receiver tank where the air can be held until it's used. However, some applications that make constant use of the compressed air to run assembly-line machinery may not require a tank. 

Key Benefits of Scroll Compressors

1. 100% Oil-Free Air

A major key benefit of scroll compressors is that they're 100% oil-free. For tasks or work environments that require 100% oil-free compressed air, scroll compressors can offer that. The two spirals found in scroll compressors that compress the air don't touch, meaning there's no need to use any oil for lubrication. But this doesn't just mean oil-free air, it also means there are no oil changes.

2. Very Low Maintenance

That leads to the next major benefit of scroll compressors—they're very low maintenance. Because there's no oil to change, and there are no spark plugs to worry about, the only real maintenance these machines require is a filter change. This not only saves you time, but it also saves you money. You don't have to worry about changing out oil filters, and you won't experience the costly pressure drop across oil filters.

3. Incredibly Energy Efficient

And speaking of saving money, scroll air compressors are incredibly energy efficient. In addition to the innovative scroll technology and lack of oil filters previously mentioned, these machines are also available with an optional built-in dryer that significantly reduces downstream pressure drop.

And if you're using your scroll air compressor for heavy-duty applications, there's an optional air-cooled IP55 class F motor designed specifically for the tough jobs. Furthermore, they're typically designed for easy serviceability, saving your more time and labor costs. So even if you weren't in need of an oil-free air compressor, the efficiency alone may be worth opting for a scroll compressor.

4. Extremely Quiet

Last, but not least, it's important to point out that these machines are extremely quiet during operation. The fact that there's no friction between the parts reduces noise significantly, as does the fact that there are no reciprocating pistons - keeping motion more smooth and balanced to reduce vibration. 

Choosing the Right Scroll Compressor

When choosing a scroll compressor, first determine which type of electrical service you have, either single or 3-phase power. Single-phase is the standard type of service, while 3-phase power is a special commercial power service. If you have access to 3-phase power, you can benefit greatly from the high-efficiency premium motors that are available in those models.

Next, consider the varying specs. How much pressure do you need? Scroll compressors generally come in 116 PSI or 145 PSI, and both single-phase models and three-phase models come available in either one. Cubic feet per minute (CFM) is another spec you should consider when selecting a scroll compressor.

CFM is the amount of high-pressure air being released per minute. This is how much work your compressor can do per minute given a set PSI. So, a 116 PSI unit that puts out 55.1 CFM will be capable of completing tasks faster than a 116 PSI unit that puts out 8.9 CFM. Don't forget the optional built-in dryer for reducing pressure drop.

If you'll be using your new scroll air compressor for heavy-duty operation, you can also consider the optional air-cooled IP55 class F motor, which is totally enclosed and highly efficient.