The Buying Guide: Screw Air Compressor
Buying a compressor is not an easy task. There are many things to consider when looking for a new one. There are different types of compressors, pumps, and motors that you can choose from. Plus, the cost can range greatly.
But have no fear! This handy guide will provide you with all the information you need to know about what to look for when buying a screw compressor, so it’s easier to find the perfect one for your needs.
With this information in hand, you’ll be able to make an informed decision on which type of compressor is best for you and your business.
What is a screw air compressor?
A screw compressor which is also known as a screwfix air compressor is the type that has a shaft and a screw. The shaft is attached to the motor, and the screw pulls air into the machine.
The air compressor is what we refer to as “air” because it uses air pressure to make work easier.
This can be used for many different purposes, like for filling tires, cleaning upholstery or for home projects. It’s an efficient way of using compressed air to get different jobs done.
How does a screw compressor work?
The screw compressor is pretty simple to use. The air is pumped into the air chamber, and then the screw pulls it through the shaft. This creates a vacuum that pulls the air through the hose. This is how you get air into different machines, like a tire pump, or a hand vacuum cleaner.
Types of screw air compressors
The different types of screw air compressors that you should know include
-Rotary screw air compressor
-Screw air compressor with dryer
-Truck mounted rotary screw air compressor
-Portable screw air compressor
-Screw air compressor with tank
-Inverter screw air compressor
-Screw air compressor with regulator
-Screw air compressor with gauge
-Screw air compressor with pressure switch
Keep in mind that each of these screw air compressors comes with a unique set of features and functions. However, they all work in the same way. The important thing to know is that they are all different in terms of size, price, and performance.
Where are screw air compressors used?
Screw air compressors are used in many different industries. In fact, they are used in industries such as construction, farming, and the military. The reason why they are so common in these industries is because they are versatile and lightweight.
The screw air compressor is also useful for light duty work tasks such as inflating tires or air mattresses. It can also be used to inflate life vests or camping mattresses.
What is the screw air compressor efficiency?
The screw air compressor efficiency is the measure of how much air it can deliver. The efficiency is calculated by dividing the quantity of air delivered in cubic feet per minute by the quantity of revolutions per minute.
How to use a screw air compressor?
The screw air compressors come with a manual that can help you understand how to use it safely and properly. You should read this manual so that you will know how to keep your equipment safe and clean.
You should also familiarize yourself with the operation of your equipment before trying to use it for the first time. You should also know how to fix any problems that you will encounter during operation.
Screw air compressor vs piston air compressor: What is the difference?
The difference between a screw air compressor and a piston air compressor is that the former uses a screw mechanism to compress the air while the latter uses a piston.
The piston compressors are usually cheaper than their screw counterparts. They also provide faster inflation and they are more versatile than their counterparts.
However, they are not as efficient as their counterparts because they do not use the same type of mechanism to compress and deliver the air.
Factors to consider when buying screwfix air compressor
Here are some factors that you should take into consideration when buying a screw air compressor:
How much air will the compressor be able to supply?
The amount of air that the screw air compressor can supply is usually determined by the size of the cylinder, which is usually measured in liters.
The larger the cylinder, the more pressure it can produce. The pressure that you need for your task is usually supplied by using a pressure regulator.
You should also measure how much air frees up from being compressed and then compare this number with what you need for your task.
Price of the air compressor:
How much you are willing to pay for an air compressor is usually determined by how long you want it to last and what type of compressor that you want. The most expensive models can last up to 20 years and they are usually made of stainless steel.
How long will it take to deliver the air?
The delivery time is usually determined by the size of your screw air compressor because larger compressors will take more time to deliver the air than smaller ones will. The delivery time will also depend on how far away the place of delivery is and how fast you can get to it.
What is the size of the air compressor?
The size of your screw air compressor will determine how many products you can use it to carry. The larger compressors are usually used for carrying heavy products and they are usually used for industrial purposes.
On the other hand, the smaller compressors are usually used for carrying light products that need to be transported from one place to another in a short period of time.
Is it a portable screw air compressor?
Portable air compressors are usually light in weight and they are usually used for carrying light products that need to be transported from one place to another in a short period of time.
The portable air compressors are also known as hand or hand held air compressors.
What is the best screw air compressor?
The best screw air compressor is the one that you will find the most convenient for your needs and it will also be the one that will meet your expectations.
The best screws can provide more convenience compared to other types of compressors because they sometimes allow you to carry more products at a given time and they provide you with a faster delivery time compared to other types of compressors.
Screw air compressors are widely used in numerous applications, be it your own home, or in industries. They are opted for due to their energy efficiency and lower maintenance requirements, which saves up a considerable amount of money. Screw air compressors also consume far less oil than other oil-flooded air compressors you’ll find in the market do.
This article will focus on how these screw air compressors work, their main types, the main differences between rotary screw air compressors and piston air compressors, how to tackle issues related to them, and much more.
Screw Air Compressor Working
We’re going to tell you what a screw air compressor’s working principle is.
Let’s first take a look at its specific components. In the compressor, there are two rotors present. Mostly one of the rotors is referred to as the male rotor, while the other one is referred to as the female rotor.
Each rotor will consist of lobes and flutes, and how many lobes and flutes each rotor will contain will depend entirely upon the size of the air compressor you’re using. In most cases, however, the female rotor is seen to contain more flutes as compared to the male rotor’s lobes. This is designed in a way to achieve more efficiency.
In order to get a clearer picture, let us describe the function of both rotors in this screw-type air compressor in this way- the male lobe’s function is to move the piston down continuously, while the female flute acts like a cylinder that traps air and reduces space simultaneously.
This air is then transported down through the female rotor, which is immediately compressed as the volume is decreased. This is how, in short, a screwdriver air compressor works.
This air is then trapped until use. When it is to be used, this compressed air is transferred to the required work, through the screw air compressor air pump.
Rotary Screw Air Compressor Types
There are many types of air compressors you’ll come across. Here, we’re going to discuss some of them for you.
Oil-based air compressor
In an oil-based rotary screw air compressor, oil is poured into the screw chamber of the compressor. After the air compressor is used, the oil is taken out by an oil separator.
Oil-free air compressor
An oil-free air compressor does not need oil to be poured in. This type of air compressor does not need oil on its cylinder walls.
Rotary screw air compressor with dryer
At times, there is moisture and aerosol left behind in the compressor. This can alter the efficiency and work performance of the overall screw air compressor. This is what screw air compressors with dryers are for. These air compressors that feature a dryer do not let any vapor or aerosol be left behind, thus, not letting it affect the overall air compressor’s work performance.
Portable rotary screw air compressor
Another common type of air compressor is a portable rotary screw air compressor. This type of air compressor is more of a small rotary screw air compressor, which is ideal for outdoor use, as it is very easy and convenient to move around. However, a screw portable air compressor is not suitable to power up demanding tools and equipment, as this air compressor is not as powerful as a stationary one.
Truck-mounted rotary screw air compressor
You’ll find truck-mounted rotary screw air compressors mostly for automotive, industrial, as well as commercial applications. Such air compressors are highly durable and reliable, as they are made from steel.
If you’re looking for one of the best air compressors, don’t forget to check out air compressors.
Screw VS Piston Air Compressor
Screw air compressor and piston air compressor differ greatly. In a screw air compressor, two meshing helical screws are used in order to compress air. On the other hand, a piston compressor makes use of pistons that are driven by a crankshaft.
Now, let’s talk about the main differences between these two types of air compressors. Firstly, the cost of producing compressed air is cheaper when a screw air compressor is used.
On the other hand, not only is the purchasing cost of the piston air compressor high but so is the service cost. If you opt for a screw air compressor, you’ll benefit from lesser noise.
With a screw air compressor, you can utilize several types of modes, such as weekly operation and weekend operation. Moreover, the overall operation is quite simple and convenient, and easy to use. Let’s not forget how reliable and durable screw compressors are compared to piston air compressors.
Rotary Screw Air Compressor Troubleshooting
In case you’re facing issues and problems related to your rotary screw air compressor, this one’s for you. Here, we’ve highlighted one of the common issues faced by individuals regarding their rotary screw air compressor, and how to tackle them:
The air compressor is not starting
In case your rotary screw air compressor doesn’t seem to be starting, you might want to take a look at the power supply, to ensure it is getting enough voltage. Then, check the fuses, temperature, system pressure, as well as voltage supply. You also might want to ensure that all of the wires are tightly connected.
The air compressors shut off after starting
When this happens, the best thing to do is to check the air compressor’s power supply, valve, and wiring. You should check the compressor if it has an adequate oil level, and you might also want to tighten any loose belts that might’ve caught your eye.
Low pressure
In case you notice there is low discharge pressure, analyze the compressor belts, and tighten them if they are loose. Then, you might want to check the air compressor’s voltage supply.
Air compressor consuming too much oil
If your air compressor is taking up a considerable amount of oil than usual, then we advise you to take a look at the sump in order to check if there is an adequate oil level. Then, carefully look at all the lines for any damage or cracks. If none of these work, then you might have to replace the separator with a new one.
In case your problems or issues have still not been solved, then you should take a look at the rotary screw air compressor troubleshooting guide pdf available online.
Screw Air Compressor Availability and Price
If we talk about the price of rotary screw air compressors, then that will depend entirely upon what brand you go for, the model, specifications, horsepower, and size.
For instance, if you go for an air compressor with 5HP, then you can easily find one in the range of $1500 to $5000. However, if you increase the horsepower to 25 HP, then such an air compressor will cost you anywhere between $20,000 and $35,000. Therefore, as the horsepower increases, so does the price.
As for availability, whether you rent one out or purchase a brand new one depends entirely on your budget and usage. In case you have a tight budget, then you should opt for renting one out. However, in case you need an air compressor that you will use more often, then we advise you to purchase a new one. You can easily look up screw air compressors for sale, depending upon where you live. For instance, screw air compressors for sale in China.