Compressors are equipment that is designed to compress air and its subsequent delivery at high pressure. These devices are used to operate mechanical equipment and power tools, as well as control production processes. Such units may be needed not only in everyday life, but also in garages, as well as production shops, so they are so common today. And some types of equipment can even work only due to the air pumped under pressure, the quality of which is sometimes very important.
Classification
On sale today you can find a compressor for a garage in a wide range, it can be designed to solve domestic problems or work in an industrial environment. This equipment is distinguished by its internal structure and technical characteristics. Before making a purchase, you need to understand the models, as well as determine the goals. To date, you can find two varieties of air compressors - reciprocating and screw.
Features of choice: screw compressor
If you need a compressor for the garage, then you can pay attention to the screw version of this equipment. As a rule, such devices are also used to assemble tools and cars; they have found their application in the conditions of woodworking enterprises. The compressor for the garage works according to a certain principle, which consists in the following: air enters through the suction valve, and then it is pumped through the screw block, cleaned in the separator and exits through the cooling radiator.
Why choose a screw compressor
The main advantages of such equipment are the possibility of continuous long-term operation and noiselessness. These devices are very economical, have high performance and consume less electricity compared to piston ones.
Features of reciprocating compressors
If you need a household compressor, then it is worth considering the option of acquiring a piston model. In it, air is compressed due to the piston, which performs reciprocating movements. This element is located inside the case. In most cases, the piston type of compressors is used in everyday life together with spray guns, to ensure the operation of pneumatic tools, as well as for inflating car tires.
Classification of reciprocating compressors
The piston compressor for the garage is divided into several varieties. So, aggregates are:
- oil;
- coaxial;
- oil free;
- belt devices.
The first are used in conjunction with wrenches and pneumatic drills. They are not recommended to be used in conjunction with spray guns, which is explained by the danger of mixing paint and oil. Oil-free devices allow you to get clean air that is free from impurities. Therefore, such devices are widely used. But they have one drawback, which is expressed in the short service life.
Description of belt models
Belt devices have good performance, durability and ease of maintenance. Household consumers choose a piston compressor for the reason that such a device is compact in size, low in cost, which determines household use. The main disadvantage is the lack of ability to work continuously. Every 20 minutes, these appliances must be allowed to rest.
Performance Compressor Selection
The choice of compressor must be based on performance. This indicator is measured in liters per minute. It is necessary to calculate this parameter, taking into account the needs of the equipment that will be used together. It is important to study the technical characteristics of each model of the device, add up the indicators, which in the end will allow you to get the required performance. But it should be borne in mind that the air compressor should not be loaded more than 70% of the indicator mentioned by the manufacturer. That is why it is advisable to select a model with a capacity of 200 l / min more.
As an example of equipment with a capacity of 260 l / min, we can consider the PROFline PC 1800/50 compressor, the cost of which is 10,200 rubles. This piston equipment is a modern high-quality device for working in the country, in the workshop or garage. The model provides stable power for pneumatic type tools. You can reduce the number of operating cycles of the device by accumulating compressed air in the receiver. The case of the model is well protected from corrosion, because the outer surface is covered with a protective layer. Mobility is guaranteed by a handle on the housing, which allows you to change the direction of movement at the time the compressor moves around the site.
Selection of equipment for operating pressure and power
The compressor should be selected by the consumer based on operating pressure. In this case, the features of shared tools should be taken into account. For example, for spray guns, pressure within 4 bar is quite enough. But for pneumatic equipment you need 6.5 bar. If you plan to use a compressor to ensure the operation of tire machines, you will need to increase the pressure to 10 bar. For industrial equipment, this parameter should be 16 bar.
Perfect for a garage model FUBAG AIR MASTER KIT, the cost of which is 9800 rubles. The operating pressure of this equipment variant is 8 bar, and the power is 1.5 kW. In one minute, the unit is able to produce 222 liters of air. The minimum noise level is 85 dB. The compressor (220v) must also be selected taking into account the power, which will affect the speed of work. As mentioned above, this parameter should be selected with a margin.
An example of equipment with average power can be the model "Caliber Master KB-1100M", the cost of which is 3,700 rubles. The power of the unit is 1.1 kW, the capacity is 180 l / min, and the equipment weighs 6 kg. This oil-free device can be used to ensure the operation of pneumatic tools. You can use the portable model in the field of construction and repair, as well as in a garage. The equipment has a compartment for storing the cord, gun and hose. On the inner surface of the lid there are locks for storing nozzles. The cable length is quite impressive and is 1.4 m, but the length of the hose is 3 m.
The choice of receiver volume
When consumers think about the question of which compressor to choose for the garage, they also pay attention to the volume of the receiver. It is worth noting that the devices described in the article provide a certain supply of compressed air, which allows us to guarantee uninterrupted operation of the compressor even when the level of compressed air drops to a minimum. Such interruptions will be smoothed out if the volume of the receiver is quite impressive. However, it should be borne in mind that with an increase in this parameter, the compressor will have to fill the space for a longer time.
If you are considering the question of which compressor to choose for the garage, then you should consider that the air consumption by the instrument can be carried out evenly, in this case you can do with a small receiver in volume. If air is supplied in batches, it is best to prefer a compressor with a receiver that is quite impressive in volume.
As an example of equipment in which the volume of the receiver is 500 liters, we can consider an ABAC GENESIS 2208-500 compressor (220v), which will cost 676,000 rubles. This device is suitable for garages that are professionally engaged in car repair. Less expensive equipment - FUBAG SERVICE MASTER KIT, which costs 8900 rubles., Has a receiver with a volume of 6 liters. In this case, the working pressure is 8 bar, and the capacity is 180 l / min. This model does not have transport wheels, but there are many other positive features, among them it should be highlighted:
- the presence of a handle;
- safety at work;
- the possibility of visual control;
- surface stability.
Compressors rating by manufacturers
If you want to buy an inexpensive compressor of a well-known brand, then you should pay attention to the model FUBAG HANDY AIR OL 195, the cost of which is 6300 rubles. This equipment is easy to manage and is intended for household chores and car maintenance. The weight and dimensions of the device are small, which is very convenient during transportation. This coaxial compressor can deliver 180 liters of air in one minute. The operating pressure is 8 bar and the unit weighs 7 kg. It is powered from a network voltage of 220 V, the power is 1.1 kW.
When choosing an air compressor for a garage, you should pay attention to another popular manufacturer - this is the Patriot, which makes equipment of the EURO 50/260 brand, its cost is 8600 rubles. This device can be used to ensure the operation of various pneumatic tools. The performance is slightly larger and amounts to 260 l / min, but the volume of the receiver is 50 liters. Power is 1.8 kW, there are shipping rings, and weight is 27 kg.
Considering the rating of compressors for the garage, you should familiarize yourself with the SB 4 / S-100.J2047 model. B from the company Remeza, the price of the equipment is 21,800 rubles. This device has a fairly impressive performance, which is 400 l / min, as well as a large receiver volume, it is 100 l. Power is 2.2 kW, the device has transport wheels, but the working pressure is 8 bar.
Self-made compressor recommendations
A homemade compressor for the garage, a photo of which will be useful to consider before starting work, will cost much cheaper, but you still have to go to the store. For equipment, borrow the engine from the Biryusa refrigerator. You will need a receiver, fum tape, fitting, manometer, pressure switch, adapter, five-way valve for the pump. All elements are interconnected, as a result, it will be possible to obtain a pressure of 3.5 bar. After welding the frame, an additional moisture separator and reducer should be purchased.