Airless Spray Guns: Electric High Pressure Spray Guns. Which Is Better - Air Or Airless? Principle Of Operation

2024 Author: Beatrice Philips | [email protected]. Last modified: 2023-12-16 05:33

The modern paint spraying equipment market is quite diverse, which is a consequence of the availability of different types of devices. Among these, air and airless can be noted, which have differences that can make changes to the workflow. The second type is no less effective, and it requires more detailed consideration.

How is it different from the air one?

Based on the name, it can already be understood that airless models do not require a device such as a compressor. It is he who creates air pressure, which sprays the paint. In the case of airless tools, the basis of work is the principle of dispersion, that is, crushing the material and its delivery to the work surface.

In addition to this difference, there are others. First of all, we can say about the paint application itself. It is more effective, since the disadvantage of air models is the waste of material in the air when using paints and varnishes. This percentage is much lower among airless units, since the working mixture simply has nowhere to disappear, because it goes directly to the surface.

This method has both advantages and disadvantages . The advantages include high efficiency and quality of spraying, which is used in industry and construction. Among the shortcomings, the main one is excessive straightforwardness. Too high pressure releases the paint so quickly that it is better for it to handle simple parts of a regular shape, without any bends or other design features.

And also the very adjustment of the airless tool requires more precise adjustment, since the material is applied with an even stream of high force. It is impossible not to say about the features of cleaning . This process should be given special attention, because ignoring it will reduce the efficiency of the nozzle much faster than with air spray guns.

Listing the differences between these types of sprayers, we can say that airless ones are more used not in everyday life, but in industry, for example, in car dealerships, shipbuilding and other areas.

This area of application is expressed by the versatility of airless spray guns, because they can handle a large number of materials, regardless of their condition . Because of this, such units are used in the furniture industry, where insufficient wood processing will not be a serious obstacle to staining. This includes the use of airless spray guns on the railway. It is roughing that makes this type the most versatile, albeit more demanding in operation.

Principle of operation and device

The main difference in the design of the airless models, as mentioned earlier, is the lack of a compressor. A hose is connected to the spray gun, or rather, its gun, which supplies paint through a nozzle. It is small in size so that the torch has clear boundaries and applies paints and varnishes as densely as possible, thereby achieving high efficiency . It is worth mentioning the presence of a special safety system, the main purpose of which is to protect the user from the high pressure of the tool, while not interfering in any way with operation.

The design also provides for the installation of a filter. It allows you to paint even in dusty rooms if you don't have time to clean. Of course, it is better to initially work in a suitable place, but there is such a possibility of instant operation without loss of quality. The paint is supplied to the nozzle through an electric motor, which can be connected to different types of drives.

In general, the principle of operation does not differ from the air models, with the exception of these features. Through the action of mechanisms, colorants enter the nozzle and are distributed over the surface.

It is important to add that the main paints and varnishes that can be used are alkyd, fire retardant, latex, textured and epoxy mixtures.

Views

There are a total of three types of airless spray guns, each requiring special attention to understand the operation and scope of application based on technical features.

Electric

This type of drive is powered from the mains system through a wire. This must be taken into account in order to ensure maximum safety and performance of the tool. When using this type of model, it is always necessary to have a power source nearby, which manifests itself best when used in a domestic environment. If you pay attention to electric spray guns, then you can understand that they do not have as much power as the other two types of units.

This is due to the fact that the main advantages and features of operation are convenience and compactness . Optimal characteristics for performing an average volume of painting, small dimensions and weight, easy transportation - all this can be attributed to the main advantages of battery packs.

We must not forget that work from electricity has its own peculiarity, since this type of device is prohibited to use in fire-hazardous and too humid places. A short circuit may occur or some mechanism may oxidize.

Petrol

A type of spray gun that runs on the most common fuel - gasoline. The main advantage is the independence of operation . You will not need to worry about having an electricity source nearby. Just fill up the fuel and use the tool. Gasoline models have good power, due to which they are most often used in industrial work. High efficiency can be attributed to the pluses, but there are also disadvantages.

First of all, these are fuel emissions. They are harmful to inhalation and, most importantly, require special operating conditions. It is very important to ensure that the work area is ventilated in advance . Therefore, gasoline airless models are used in open areas, such as construction sites, where the presence of exhaust emissions does not have serious consequences. Power also affects the transport capacity, which is a disadvantage in combination with considerable dimensions.

Pneumatic

The most efficient type of drive, as it allows you to work with large materials. The basis of the work is a pneumatic unit designed specifically for industrial scale. Usually, This type of spray gun is used in car services, at car factories, in shipbuilding and other industries where the time to complete the task is very important . Naturally, pneumatic models have the highest price, but if you know how you will use such a unit and can realize its power, then it will pay for itself in a fairly short time.

How to choose?

First of all, decide on the type of device. By assessing the advantages and disadvantages, as well as design and operation features, you can choose the appropriate model based on the tasks and volume of work. Pay attention to individual parts of the gun, such as the diameter of the nozzle . This characteristic is responsible for ensuring that the spray gun can release as much material as possible. This increases the consumption of the emulsion, but the work can be done faster. The usual size, which forms a torch diameter of up to 80 cm, is sufficient for a wide range of tasks.

Do not forget about the rate of use of the maximum allowable viscosity. It should be 50-80 Din, so that you can use paint of different consistencies and independently adjust its condition by adding the required amount of solvent.

Before choosing, it will be useful to learn more about the design, or rather, about the presence of various nozzles on the nozzle, about the handle and its structure. Among the technical characteristics, the importance of noise and power levels can be noted, because these two parameters determine the efficiency and convenience of technology.

The selection of equipment from a specific manufacturer is no less important . There are a large number of companies on the modern market that are ready to provide their products to the consumer. The possibility of a wide choice in this case is decisive, since you can proceed from your budget, specific preferences, and compare the capabilities of the model with your tasks.

Top manufacturers

Information about good and trusted manufacturers can greatly help when buying. You can make a small rating, which will include well-known companies with a good assortment.

Graco - a company that specializes in manual painting equipment. Among the advantages, one can note a wide assortment, which is built according to the model line. That is, one unit has several variations that differ in their characteristics and configuration. This variety allows you to choose a spray gun based on the budget.

Bosch Is a well-known company producing various types of power tools. A sufficient number of assortment in the most diverse design allows the consumer to choose equipment of different levels and areas of application. Good quality and average price have been appreciated by buyers for a long time, making Bosch models easy to purchase in Russia. This also applies to spare parts that can be purchased separately.

Wagner Is a German manufacturer known primarily for its automated systems that are used in large-scale industry. Pneumatic Wagner models are made using modern technologies, due to which high quality and efficiency of performance of various works is achieved. Of course, these systems are expensive, but they are designed for mass and widespread use that can recoup the equipment costs in the future.

" Zubr " - a domestic manufacturer of inexpensive equipment, among which there are units for painting surfaces. The lineup of the low and middle price segment, expressed in the optimal ratio of quality and cost, is best suited for domestic use. Simple operation, reliable design and the possibility of good feedback make Zubr paint sprayers one of the most preferred for their price. And also it is worth noting the low cost of spare parts and other components, due to which the operating costs are reduced.