Those who are constantly faced with the need to clean metal surfaces know that this task can be solved in various ways. The most time consuming, time consuming and exhausting is the use of a hand tool. To minimize the time spent and improve the efficiency of actions, sandblasting devices are used.
Content
These tools differ in characteristics and principle of operation. However, they contain identical structural elements:
The most important element is the compressor, which serves to build up the air flow pressure. They are divided into units of low power, medium power and significant power. The operation is controlled by automation, turning the device on and off, adjusting the pressure indicator.
The best and most expensive models are equipped with compressors and a special system that allows them to turn off in case of a breakdown, as well as in case of voltage surges.
The advantages of automation are as follows:
What to look for when choosing a model? On the build quality and dimensions of hoses for air and sand, as well as for removing the abrasive component. The power of the device and performance, as well as the quality and duration of work, directly depend on these parameters.
Sandblasting units are used to remove all kinds of dirt from surfaces. Manufacturers produce several types of installations, similar in principle of operation: thanks to compressed air, an abrasive agent or sand flies out of the nozzle at great speed, cutting into the dirt and effectively removing it. These devices are used to clean buildings, metal structures from rust, old paint, dust and dirt.
Sandblasting is divided into types, depending on the type of action and power. Thus, there is a division into the following devices:
Kinds | Specifications |
---|---|
Low power | The volume of the container does not exceed 30 liters.Scope of application - hard-to-reach places and when working at a significant height. Unable to function for a long time, it is necessary to regularly rest the device. |
Medium power | Capacities from 50 to 140 liters. They are distinguished by the absence of a powerful compressor. They are used in medium and small industries. |
High power | The presence of a capacity of at least 20 liters. Used for significant volumes of work. This stationary device treats huge contaminated areas. |
Based on the type of action, devices are:
Thanks to such settings, it is possible to tidy up various types of surfaces using:
Sandblasting machines are available in two types, the differences between which are indicated in the comparative table:
What are | Description |
---|---|
Open type | They are used in open spaces: under awnings, outdoors, and so on. Inexpensive, mobile, with insignificant parameters. The main disadvantage is that a lot of dust appears during operation, there is no way to collect and reuse the abrasive mixture, too much sand leaves. It is quite dangerous to work with the tool, therefore the operator must wear full protective equipment. |
Closed type | They are used in a closed space - a special chamber with different dimensions: from a small box to a large room. The devices have significant power, with the circulation of the abrasive mixture, which allows it to be reused. It is widely used in the construction of large facilities and rarely at home. The application is safer. The main disadvantage is its considerable size, difficulties during transportation and the obligatory connection to ventilation systems. |
Popular models can also be:
The most common industry is body repair. This technique helps to quickly and effectively free the surface from old paint, rust, grease and other contaminants. Often the device is used when repairing discs: if the part is peeling, crumpled or damaged, then before proceeding with its restoration, first a high-quality cleaning is performed, and then painting.
What are the advantages of the sandblasting unit? The result of metal grinding with this tool is unique, which cannot be achieved in manual mode. This method removes even the most pitting elements of corrosion, "hidden" in pits, minor pores and microcracks, which minimizes the process of rusting of the metal base. Products cleaned in this way serve much longer and are less subject to corrosion. As for the surface, it turns out to be surprisingly smooth. When not scratched, primer and paint will perfectly cover the parts.
In addition to car repairs, the sandblasting device is widely used in:
Powerful devices made of high-strength material and endowed with special functions through the use of all kinds of attachments are used for drilling holes, grooves and grooves. Designer fantasies with the use of such a unit allow you to process the surface in such a way that the material “aged” and acquired a vintage look.
It does not matter which company is better to buy the product, and whether it is in the rating of quality products, Russian or Chinese, budgetary or at a substantial price. The main condition of work is compliance with safety measures. A branded tool can harm human health, provoking the development of serious pulmonary diseases, or cause injury due to the significant speed of ejection of abrasive from the nozzle.
To avoid unpleasant situations and maintain your health, you must heed the following recommendations:
Some "daredevils" in the open air wear only a regular respirator, but the best option would be a helmet with an autonomous air supply. If the actions are performed indoors, then this attribute is required.
It is worth considering that powerful units are never silent, therefore, in order to avoid damage to the hearing organs, it is worth wearing headphones with sound-absorbing functions under the helmet. They can also be mounted in a helmet.
The efficiency of any work directly depends on the correct organization of the workplace. The sandblaster will function safely and reliably in a room with a normal humidity level. Otherwise, the process can be significantly delayed, and productivity - reduced. If the humidity is too high, measures are taken to reduce the indicator. For these purposes, special dryers are installed at the facility. The best manufacturers produce popular models equipped with this functionality.
Air purity is of great importance. This is achieved through the use of filtration systems. As a rule, they are already built into the devices, which makes it possible to free the air from particles of dust, dirt, oil.If the device operates in an enclosed space, then the object must be able to quickly and efficiently cleaned of sand. The best option is the complete tightness of the room, where the remaining sand will fall into special tanks through holes made in the floor. Can be reused after pre-sieving.
According to buyers, it is necessary, first of all, to pay attention to the weight of the goods. The structure should not be heavy. In addition, it is advisable to equip it with a chassis to facilitate transportation. As for the tank, its performance must meet international safety standards. When buying, you need to ask the seller for a certificate of verification.
Which product is better to buy depends on the preferences of the master. But there are certain selection criteria that must be taken into account. Moreover, the brand and rating are not fundamental. The design of the pipeline is of great importance. It should be borne in mind that the simpler it is, without fittings and bends, the more powerful the unit. You need to pay attention to the diameter of the hole. The optimal indicator is 32 mm or more.
In order to avoid mistakes when choosing, it is necessary to conduct a review of the products, read the reviews. It is necessary to pay attention to such moments:
For a powerful compressor, a large diameter nozzle is assumed. This is the only way to increase labor productivity. To choose the right air gun, you should pay attention to the following recommendations:
There are several ways to buy a device of this type: through one of the many online stores (order online) or delivery directly from China via the Ali Express Internet resource. You can also contact a specialized store, where you can then purchase the selected equipment. The last option is beneficial in that the sales manager will help you make the right choice, tell you about new products, give certain recommendations, and provide quality certificates.
A person with certain skills and tools can make a device with their own hands. How to build the author's version, the Internet will tell you. Let the unit not be too powerful, but it will provide significant assistance during repairs.
One of the most popular copyright brands in Russia. Engineer Sorokin is the author of a large number of special equipment, including sandblasting guns connected to the compressor. The model differs in that it is produced with an upper abrasive tank, which makes working with it more convenient and simple. Tank with a capacity of 0.9 liters. Designed for cleaning small surfaces. It is especially popular with home craftsmen.
The average price is 3000 rubles.
The products are manufactured in China. The main difference is the lack of capacity. The abrasive is supplied through the pipe that comes with the kit. It is immersed in a container of sand, after which the gun is connected to the compressor. Despite the low cost, the product is quite functional and allows you to handle significant surfaces.
Price - 550 rubles.
The Chinese manufacturer has tried to create an amazing assistant for DIYers. Despite the mediocre technical characteristics, the device is able to clean small surfaces efficiently. Equipped with a small compressor considered "quiet".
The average price is 1300 rubles.
Differs in the absence of a tank for abrasive and low weight - 1.2 kg. The pistol is made of high quality metal that is not afraid of mechanical damage. Time of continuous work - from 8 to 12 hours (maximum). Equipped with a standard tank, but you can also take sand from a bucket. Quickly and efficiently cleans car bodies.
The product can be purchased at a price of 1119 rubles.
Produced by a leading Belarusian company using modern manufacturing facilities in Taiwan. High-strength plastic is used in the manufacture of the case, which completely prevents corrosion. The abrasive tank is mounted at the top. The sand is filled in through the throat in the back, which is closed by a hinged cover. The flow regulator is located at the front.
The average cost of production is 4510 rubles.
The German manufacturer has launched the production of goods in China, which made it possible to make the price minimal, and the quality worthy of attention. The model consumes 340 liters of air in one minute. The inlet fitting is ¼ ”in diameter. The hose from the compressor is secured with threaded connections. Holds well in the hand thanks to the embossed handle. To avoid pinching the ring finger with the trigger, the handle has a divider. The device is easily suspended on the hook by the loop, thereby freeing the operator's hands. Water can be taken from the tap.
The average cost is 1509 rubles.
The product of the American brand has many advantages. It is equipped with a 700 ml bottom tank and a stainless steel tube through which fine particles pass. Although the pistol is plastic, this does not detract from its merits. It has an unfolded shape with an angle of 110 degrees. This allows you to comfortably hold the device during operation.
Retailers offer high-quality products at a price of 3430 rubles per unit.
The German manufacturer offers its admirers a high-quality device with a built-in bottom tank for abrasive. The body is made of metal and coated with paint. Thanks to the loop, it can be hung on a hook. The flow nozzle is made of hardened steel. The embossed tip makes it easy to remove. Product weight - 700 g, ¼ inch diameter fitting, air consumption - 300 l / min.
The average cost is 1879 rubles.
The main difference between the model is an aluminum tank with a capacity of 1 liter. Joins with just one touch. Light weight - 590 g. Convenient when cleaning areas. It enjoys well-deserved popularity among craftsmen due to its ease of use. The body is completely metal, there are no structural elements made of plastic. The product can withstand shocks and drops. Structures, scratches and other mechanical damage are not terrible.
The average cost is 2120 rubles.
The manufacturer focused on an all-metal body covered with rubber, which significantly increases its usability. There is a lower container for abrasive. The trigger is pressed with two fingers. Thanks to the protruding stop on the handle, there is practically no possibility of pinching the remaining free fingers.
The tank is made of aluminum, which prevents mechanical damage during the fall. Product weight - 920 grams, air consumption - 500 l / min. For efficiency, it is worth connecting a powerful compressor to the device. The presence of a hook on the back allows you to quickly free your hands.
If you study user reviews, then the product characteristics are good. It allows you to quickly and efficiently free the surface from rust, dirt, paint layers, and make the metal coating completely clean and shiny. Excellent performance is provided by a 6-mm nozzle, which makes it possible to use the unit for professional activities.
The average cost of production is 3589 rubles.
Sandblasting machines have long been used in different countries for cleaning all kinds of surfaces. At first they were primitive, but every year they are improved.World manufacturers pay great attention to such basic indicators as power, durability, reliability, safety, convenience, efficiency, functionality. The device has to deal with even the most dirty areas, and not just on a flat surface.
Everyone has their own selection criteria. It all depends on the volume of work performed and their complexity. For a small workshop, it is enough to purchase a low-power unit at a budgetary cost. The main thing is that the device is able to perform the indicated functions.
For overhaul at large facilities, you should pay attention to powerful installations. Although these are more expensive, they allow you to efficiently and quickly achieve the desired result, saving time and labor. It is worth constantly remembering that working with sandblasting machines requires strict adherence to safety rules and the presence of special equipment.