How to choose a spray gun

October 9. Instruments Views 1988. Comments to write how to choose the right kraskopult No

The paintopult is a tool that has become simply indispensable in construction. It is successfully used to perform a wide variety of tasks not only in production, but also for domestic purposes. For many masters, the right choice of spray collapse is a rather difficult task, as the market offers a huge range of similar devices that offer hundreds of manufacturers. Therefore, having decided to purchase a paintopult, it is worth dealing with the way that it can and which is best suited for performing a task.

Classification of models of paintopult

The paintopult is a portable device, which by spraying the paintwork stains the surface of a certain material. Through the use of such a device, it is possible to achieve the highest quality of the finished coating, which you can not say when working with a roller or brush.
The paintopults presented today in the domestic market are distinguished between them, first of all, the principles of work. They are:

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  • pneumatic, that is, those devices that work on compressed air. They require the presence of a compressor with the receiver. Using the hose to the compressor, attach a special nozzle sprayer, resembling a gun with a tank. The compressor pumps air, thereby creating pressure, under the action of which the paint is divided into microparticles and pushed out of the nozzle. Pneumatic paintopults in a compressor complex are quite expensive, so they are usually used mainly professionals;

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  • electric paintopults, in contrast to pneumatic, operate from the electric motor and do not form compressed air. Painting spraying occurs under the pressure of the built-in pump. At the same time, its particles are not so crushed as in pneumatic devices, which means the quality of painting is largely inferior to them. Electric paintopults are affordable and comfortable devices that are ideal for applying in domestic conditions.

In addition, all the existing paintopults are separated into three types, depending on their working pressure and volumes of the consumable air.

Prashopult NP

Devices of this type are characterized by affordable price and ease of use.

  1. The main feature of such equipment is a high working pressure with a small consumption of air, which provides a fairly fast painting.
  2. However, it is impossible to achieve high quality painting with such collarship due to a small percentage of material transfer.
  3. The HP system devices are able to transfer no more than 50% of paint materials, and the rest under pressure is discharged into the surrounding space.
  4. Thus, not only the cost of expensive paint occurs, but the atmosphere is contaminated. Therefore, in some countries, the use of spray guns of the HP system is prohibited.

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HVLP paintopulists

Devices of this type are deserved were recognized by those effective and economical experts.

  • Due to the special pistol design, such paintopulizers have lower outlet pressure with a large amount of air, due to which the smallest partitioning of particles and a stable form of torch is possible.
  • Hence the highest quality coating and low losses of the paintwork.
  • The main disadvantage of such devices is their cost (from $ 150). However, with constant use, they are capable of paying off quite quickly, given their economy.

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LVLP paintopults

LVLP paintopulle appeared on the market not so long ago and were developed on the basis of HVLP technology.

  1. They managed to significantly increase the coefficient of transfer of paintwork to 80%, thereby reducing its overrun.
  2. And, in addition, increase the spraying rate with high quality coating, which is important.
  3. Naturally, the cost of such European production devices is quite high and reaches 200-300 dollars. (Analogues of Chinese production are about $ 40).)

The main technical parameters of the paintopult

Tank volume or receiver

As a rule, the inexpensive models of the paintopult have a small tank (up to 50 liters). If we consider that such a device is also compact, and easy to handle, it is quite capable of cope with any household tasks. However, for intensive work on large production, without a gun with a large volume of the receiver (150-300 liters) can not do.

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Engine power

Most of the devices presented today on the market have approximately the same engine power, which is approximately 1.1-1.8 kW. This is enough for quite effective work. However, it is important to draw attention to the fact that many unfair manufacturers are specifically introduced to the delusion of their buyers knowingly indicating overestimated power.

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Operating pressure

This parameter, like power, also has a standard value (approximately 8 bar). Next, the automation is triggered and the device is turned off. Therefore, the choice of models in this question is small. Although you can find on the market and more advanced devices that swing from 10 bar and above.

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Performance

An indicator that indicates how many liters of compressed air per minute can give a compressor. This is a very important selection criterion. The quality of the coating, and the working conditions depend on it. However, many manufacturers indicate the performance of devices at the entrance without taking into account air loss, which is approximately 35%. Based on this, in order to obtain a real indicator, it is necessary to multiply the stated performance by the coefficient of 0.65.

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More detailed about choosing collapse in video:

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