In the production of construction and finishing works, it is often necessary to organize multiple fixing of any elements to hard surfaces, for which it is necessary to use an impact drill or hammer drill with the subsequent installation of dowels and fixing structures. This method of fixing the elements is quite tedious and takes a lot of time. The assembly gun for dowels on concrete will help to facilitate the work, which allows you to firmly fix any details to hard surfaces (brick, concrete, reinforced concrete).
The construction and assembly gun was widely used as far back as the last century, but now manufacturers have launched the production of a large number of models that perform various functions, greatly facilitating the work of finishers.
All such tools allow you to fix elements and structures on the following surfaces:
- reinforced concrete;
- cellular concrete;
- brick (silicate, red);
- wooden surfaces;
- concrete;
- metal;
- cinder blocks.
A gun for concrete, or a neiler, as builders call it, allows you to achieve the following results:
- saving muscular energy of working personnel;
- work time saving;
- the ability to work in tight spaces.
The device of the mounting tool is quite simple, so it’s easy to understand how to use the mounting gun. The dowel is driven into a hard surface by burning and pushing powder gases or compressed air. The specific driving rules depend on the model of the gun and the surface on which the part or element needs to be fixed.
If we compare the traditional method of fastening and the use of an installation device, we can identify a number of significant advantages:
- clogging with this tool does not lead to destruction and chips of the surface;
- most models are completely autonomous and do not require a network connection;
- all types of mounting devices have increased safety for the employee;
- even the thinnest and most fragile elements are not damaged when fixing them to a solid base with a gun;
- installation speed, for example, of drywall sheets, increases significantly.
By type of device, the pistols are divided into: gas, powder, pneumatic and electric. The principle of operation of all options is the same, the only difference is in the type of organization of pressure on the piston, which performs the driving of the dowel.
Using mounting guns, you can not only fix structures on hard surfaces, but also carry out repairs and make various designs, for example, containers for packaging large products.
Types and characteristics of mounting guns
There are four types of mounting guns:
Pneumatic
This tool provides for a compressor that supplies compressed air to the chamber of the air gun. To produce a shot, it is necessary to maintain a pressure of at least 5 bar.
The device itself is connected to the compressor using a special hose, which creates some inconvenience during operation, also requires connection to a constant source of electrical power. For some models of pneumatic guns produce batteries, but this addition significantly increases the weight of the product.
The positive aspects of this product include:
- reliability;
- ease of use;
- rate of fire;
- no need to buy more cartridges;
- low mass of the product;
- the ability to work in conditions with high humidity;
- no permission required.
Negative characteristics:
- the need for additional equipment (air hose, compressor, power source).
Gas
In these models, a shot is fired when gas is ignited in the chamber of the device, as a result of which the piston mixes. Construction gas gun implies the presence of a gas cylinder.
Such devices have several advantages:
- independence from power supply;
- high penetration;
- minimum weight of the product;
- ease of use.
The disadvantages of gas mounting guns include:
- high price for the device itself and gas cylinders, which increases the cost of work;
- the need for ventilation when working with this device.
Gunpowder
To organize the fasteners with this gun, special powder cartridges will be required, which are divided into specific tasks (fastening to metal, concrete or wooden bases), which is reflected in the color and diameter of these cartridges.
The advantages of powder guns for installation:
- high power;
- independence from external power sources;
- lightness and compactness;
- the possibility of using various dowels.
Cons of powder guns for installation:
- the need for ventilation;
- the need to obtain a purchase permit;
- the need to buy cartridges.
Electric
These models are the weakest in power. Typically, electric guns are used in finishing works and furniture assembly.
Advantages of electric guns:
- minimum weight of the product;
- lack of exhaust gases;
- long period of work without maintenance;
- low vibration.
Disadvantages of electric guns:
- dependence on the power source;
- low power
- high price.
Features of choice
In order not to make a mistake in choosing a mounting gun, you must pay attention to the following tips:
- It is recommended to make a purchase in specialized stores;
- For large volumes of work, it is advisable to purchase drum ammunition, accommodating a large number of cartridges, but this option greatly increases the weight of the instrument;
- Shops in the form of cassettes make it possible to work in uncomfortable and narrow spaces;
- When choosing a particular gun, you should pay attention to the presence of an adjustment screw, which allows you to adjust the depth of penetration of the dowel into a solid surface;
- The trigger can be trigger or push-button, but the most convenient are combined descents;
- The presence of switching the operating mode from a single shot to the casing mode will simplify the work;
- The safety of the device depends on the presence of a fuse;
- It is advisable to purchase devices with a rotary nozzle for exhaust gas so that combustion products do not get into the face of the worker;
- It is recommended to purchase pistols with a toothed stop, which allows for more accurate shots;
- When purchasing a device with a battery, it is advisable to choose those models that allow you to control the level of charge. The presence of a second battery in the kit will greatly simplify the work;
- Before making a decision, it is necessary to carefully examine the gun, check how strong the material is, whether there are stiffeners.
Terms of use
Dowels for fixing elements on a concrete or brick wall are a kind of nail with a washer, which is located almost in the middle. When a worker makes a shot from the device, the washer slides to the dowel head, which allows you to securely fix the part to the wall.
To use the mounting gun correctly, special skills are not necessary. Any novice worker can handle this device, but when working with this tool, you must follow the safety precautions:
- Do not leave the instrument unattended in the presence of children.
- When stopping work, the device must be fused.
- In the process of using dowels designed for this particular model.
- To exclude injuries, you should study the instructions for the product before starting work.
Popular models and their characteristics
Currently, the most popular models of mounting guns among builders are the following brands:
- Aiken, China. The MGN 850C Gas model is excellent for organizing work on fixing sheet metal to solid substrates. The price of this device ranges from 25,000 rubles;
- Toua, China. Depending on the model, the cost ranges from 30,000 to 35,000 rubles. For standard work, the GSN40A and GSN40ST models are used, which differ in the diameter of the dowels used. The GSN50 model is suitable for electricians, and the GSN40D does an excellent job of targeting with special clips of insulation in mats and rolls when warming facades;
- Hilti, production of the Russian Federation. A multi-purpose professional tool. The cost of the most popular model GX 120 ranges from 55,000 to 62,000 rubles;
- Spit, made in France. Also applies to professional tools and allows you to solve almost all the tasks at the construction site. The cost of Pulsa 700-800 models ranges from 68,000 to 75,000 rubles.