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Compressor for sandblasting. Sandblasting

The work of pneumatic devices provides for interfacing with additional technical equipment. The function of the power activator is performed by a compressor unit, through which the jet is supplied. There is a large range of pneumatic equipment, and for each device, a choice of special equipment is expected. From this point of view, the sandblast compressor refers to standard solutions designed for household or semi-professional use. Although the device performs very important tasks, to ensure its function, the average performance of an auxiliary installation is required, usually an air type.

Sandblasting technology

The essence of this operation is to spray a mixture containing air and abrasive elements. Almost all pneumatic pistols work on the same principle, but they can have different tasks. For example, a group of inflatable tools is widely used to pump tires, mattresses, boats, etc. In turn, sand blasting represents a subclass of "blowing" operations, the task of which is to force mud and other extraneous elements and masses out of the force Air flow. In this case, sandblast has a higher abrasive effect, which is due to the content of fine particles in the air stream.

Sandblasting is used to provide grinding effect. It is not just cleaning the surface and removing dirt, but a complete renovation of the external structure of the material that allows the pneumatic device to be realized. The compressor provides sufficient power to remove traces of rust, paint, mold and other unwanted deposits.

Interaction of sandblast and compressor

The quality of the operation depends on how well the model of the compressor unit is selected for the sandblasting tool. In addition, it is important to take into account the peculiarities of pairing the two working components already during the procedure. In particular, the compressor for sandblasting must be removed from the immediate place of work by at least 3 meters. If it concerns the application of paint and varnish coatings, then you can observe this distance "by eye", based on specific working conditions. However, spraying of abrasives poses a serious danger both for the operator and for other objects that are in the zone of functional coverage of sandblast.

Also it is necessary to approach the connection of two units responsibly. To do this, manufacturers complete the equipment with special hoses, fasteners and couplings.

Types of compressor equipment

There are several types of compressors, each of which can theoretically provide the function of a pneumatic tool. However, not every bundle will guarantee optimal performance and energy savings. Most often, aerial models are used to support the operation of pneumatic devices. They rationally consume electricity, while giving out the necessary power reserve. Such installations are usually used in car repair shops. Compressor air for sandblasting and domestic needs will find its use, if, for example, it is necessary to clean individual sections of the facade or update the garden equipment.

Complement the pneumatic equipment with screw systems for air supply, but these are options for more complex tasks. In general, belt, screw and piston models are oriented to operation in industrial conditions and are rarely used in a complete set with compact pneumatics.

General characteristics of compressors

The compressor is characterized by such indicators as capacity, capacity and volume of the receiver. The first two parameters are interrelated, so they should be considered together. Small installations with a capacity of 1.5 kW are capable of delivering performance in the range of 50-100 liters per minute. This is the minimum level of power potential that a modern compressor for sandblasting has. The characteristics of more solid aggregates assume a volume in the range of 2-5 thousand liters.

As for the receiver, it is rarely present in the complete set of air compressors, and in equipping screw and piston models it can hold about 200-300 liters. The presence of the receiver in the compressor for sandblasting is considered by many to be superfluous, but such equipment is also found. In such cases, the damper volume varies from 40 to 100 liters.

Indicators of pressure

Still, one of the most important operating parameters of the compressor is the pressure level. As such, this value does not affect either the capacity or the volume of the jet supplied. Pressure acts as a kind of regulator, converting power into the required flow strength. At the same time, it is necessary to take into account that the compressor for sandblasting should have a pressure corresponding to the tool being serviced. That is, if the maximum allowable value of the gun is 7 bar, then it is inadmissible for it to use a compressor of 10 bar. Work in this mode can physically break the sandblasting machine.

The optimum option is the purchase of a compressor with the possibility of adjusting the operating parameters. This option makes the equipment universal, as it can be used for tools with different performance indicators.

Maintenance of compressors

The main task of the user during the operation of the compressor is to regularly change the lubricants and to check the reliability of the connection of the parts. Depending on the intensity of application of the unit, the intervals between preventive measures can be both weeks and months. By the way, the oil should be replaced every 300 hours of direct operation. Some models are sensitive to the state of the filter sponges.

Also sandblasting can adversely affect the mounting of covers and receivers, while contaminating the cavity of the compressor. Therefore, together with the replacement of oil, regular cleaning of the internal parts of the equipment should be carried out, and it should be relieved of the presence of condensation.

Nuances of operation

The work process precedes the preparation of equipment for use. First of all it is necessary to install the unit on a stable and level surface. The compressor should stand in such a way that its rear ventilation grille does not have the nearest obstacles at a distance of 0.5 m. Compliance with this condition is required for the reason that the flow obstruction leads to overvoltage of the motor. Also, arrangements should be made that will physically protect the sand blast compressor installed for a long service life. Some manufacturers initially equip the equipment with metal housings, but such equipment heavies the compressors and makes access to their working elements more difficult.

Manufacturers of compressors

The leading positions in the segment of compressors are occupied by manufacturers Abac, Fubag and Polair. The disadvantage of these brands is the focus on the professional needs of customers. Therefore, a targeted selection of the installation for the pneumatic unit should be done in the segment of such companies as Zubr, Interskol, Resanta, etc.

In the families of these manufacturers, you can find a compressor for sandblasting for little money and with optimum performance. Another thing is that in the process of long-term operation it is necessary to prepare for maintaining the working life of the elements of technology, otherwise it will not last long.

Conclusion

Compressor equipment is often more expensive than the tool it serves. Determining with which compressor for sandblast to prefer, do not ignore the possibility of expanding the scope of operation of the unit. A low-powered household appliance will not be able to assist in large-scale construction works, but a semi-professional model with an average capacity will not only handle the air pistol, but other, more complex tasks. Sets of universal fittings for the connection make it possible to connect the compressor equipment to both hand tools in the form of the same sand blasting, and to stationary production equipment.

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