Which compressor to give preference – oil or oil-free?

The use of a compressor is very often necessary during various household chores, in a garage or, usually, for pumping car tires. Therefore, the choice of such a device is one of the most difficult, for everyone it takes quite a long time.

First, the presence of the user is important:

1. Clean forced air.

2. Required pressure.

3. Continuous operation of the device.

4. Increased operational resource.

As well as other parameters and characteristics, which choose this device. Consider them in more detail.

The importance of choosing the type of compressor

Which compressor to give preference – oil or oil-free?

Every year, manufacturers of these systems represent new, more modern models of compressors, which differ not only in quality of work, but also in performance and design features. The last criterion is very important, because not only the efficiency, but also the purpose of the device itself depends on it. Among the most popular compressors in the modern world, there are two options – oil and oil-free.

Distinctive features of devices

The main difference between these two types of compressors is lubrication. In the oil unit it is, in oil-free, respectively, – is absent. This factor is especially important when choosing a piston device, since during its operation there appears friction of elements made of metal. Their dense location and constant interaction leads to abrasion and subsequent damage, which leads to overheating of the crankshaft, piston, and other components.

In this situation, the only solution would be to add a lubricant, oil, which creates a film between the cylinder and the piston, while reducing the friction intensity. Also its use provides:

protection of all important parts and components from wear;
increased heat dissipation;
prevention of corrosive processes;
longer life;
long work continuously;
reduction of system overheating.

Very often in such compressors are used parts with more durable materials, it can be steel or cast iron. However, it should be borne in mind that high quality and successful operation of the device directly depends on the choice of lubricant, since poor-quality or unsuitable oil to a specific compressor can only worsen the situation. Therefore, in this case it is better to select the type of lubricant in accordance with the instructions for the device.

In oil-free compressors, the lubricant is completely absent; therefore, the movement and friction of the elements in them performed in a «dry» form. This factor contributes to an increase in the operating temperature, and this indicator, the majority of manufacturers, try to reduce by developing new technologies.

Screw models, for example, made using water injection into the compression chamber. Nevertheless, piston devices made using materials having a reduced coefficient of friction. However, despite these improvements, friction does occur, because of this, oil-free instruments have a much shorter service life.

Advantages and disadvantages of oil compressors

These devices have a number of important advantages due to which they often chosen for carrying out various works near the house, in the garage or for pumping car tires:

1. Reliability due to increased service life and service life, as parts are not subject to wear.

2. There is no overheating, since friction is excluded.

3. Long cycle of work, which is very important when working with pneumatic tools.

4. Increased performance.

5. Low power consumption, less engine power.

However, despite the significant advantages of using this device, there are still a few drawbacks that should be taken into account when choosing a compressor:

possibility of oil impurity in the injected air;
regular buy special compressor oil;
the need to replace, fill and control the level of lubrication;
more valuable from other compressors.

In addition, these devices are large in size and weight. However, these disadvantages are likely to be features of the use of oil compressors, which should not be neglected after purchase, during operation.

Oil-free compressors – «pros» and «cons»

Among advantages of such devices is the opportunity of obtaining clean air, without oil impurities. Also, accordingly, they are:

1. Do not require replacement, filling and continuous monitoring of oil level.

2. Have less weight.

3. Have a lower cost.

Among oil-free compressors disadvantages are the following:

lower performance;
low working resource;
lack of high pressure and power.

In other words, when buying and installing an oil-free compressor it is worth considering that they can use only for minor and short-term work.

Features of choice – oil-free or oil compressor?

The answer to this question will be the user's decision regarding the purpose, scope, instrument and intensity of its use. For example, in some cases, the use of pneumatic carried out with stringent requirements regarding the purity of the incoming air. In these situations, the ingress of oil particles prohibited, so the use of an oil-free filter is the best option. They used in:

1. Medicine.

2. Food industry.

3. During the painting of cars, other elements.

4. On the production of upholstered furniture.

In addition, oil-free compressors often used to perform minor work; these devices are cheaper, optimally suited for using simple types of pneumatic tools. They quickly and efficiently pump up tires or blow air, and since they do not work for a long time due to heating, they often used to work from a screwdriver.

Unlike oil-free, oil compressors can be used in any area where there are no stringent requirements regarding the purity of the supplied air. Due to the high performance and the provision of the necessary pressure, they can use in different industrial complexes. In addition, they can continuously work daily, which makes versatile and more perform to any tasks – in the house, country, garage, in production.

It is very important that when deciding to use an oil compressor in cases where it is required to obtain clean air, you need to take care of air cleaning in advance. We are talking about installing a filter for cleaning oil that can easily clean the air of oil particles. However, it is worth considering that any filtering device is capable of cleaning up to 99.9% of impurities in compressed air.

Tips for choosing an auto compressor

Important criteria for selecting any compressor are as follows:

careful inspection of the device. Each element and detail of the device must made with high quality, with even inscriptions, smooth joints, without rejects and burrs;
body implementation. The body part should be made of metal; choosing plastic models you need to make sure that they comply with fire and sanitary standards, they must be fire resistant and impact resistant;
length of cable. The power cable must be at least 2.5-3 in length, as well as high quality plug-in – It must be durable and tight, without cracks and other damage.

By adhering to these recommendations, you can find a great compressor for a car or other purposes. An excellent selection of different models and types of compressor devices can found on our website; here everyone can choose the device for its intended purpose and the intensity of its use. You can buy auto compressors in Kharkov, Kiev, Odessa with delivery in Ukraine at 130.com.ua.

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