Diamond cup on concrete - its types and features

When performing construction work, very often there is a need to eliminate various irregularities of concrete surfaces, which may look like sagging or, for example, joints. To perform these tasks, diamond grinding cups for concrete are used. Next, we consider what constitutes this tool, what types of it exist and what are the main features of working with them.

General information

So, a diamond cup is a disk, on one side of which there is a working surface (grinding cutters), and on the other side there are fasteners. A "diamond" tool is called because diamond grains are securely fixed in the metal.

In the manufacture of such disc-cups used the smallest fraction of artificial diamonds, which are added to a special metal composition. Then the resulting mixture is pressed in the form.

Since this tool is used for different purposes, it can vary in:

• Type of binder;
• The number and size of diamond chips;
• The shape and location of the cutters.

In addition, the discs are single and double row. The latter are more productive and have an increased service life. Of course, the price is higher.

Diamond nozzle allows you to perfectly smooth out any flows, seams or other various defects that sometimes occur during the molding of a concrete solution.

The tool can be used for the following types of processing:

• Rough grinding;
• Profiled processing;
• Finishing sanding.

It should also be noted that the diamond cup for grinding concrete is such an effective and reliable tool that it is even used to work with such solid types of natural stones as granite and marble.

High quality grinding is achieved due to the technical characteristics of the cutters. They have much greater strength, stiffness and density than concrete and other surfaces to be treated.

If the cups are mounted on angle grinders, then a dust extraction is additionally used, which makes the process more convenient, simpler and less dusty. If wet grinding is carried out, then a small amount of water is supplied to the area to be treated, which wets the formed dust and waste particles. As a rule, wet grinding is used when installing mosaic floors.

Note! Grinding floors with diamond wheels allows you to make their surface not only more attractive and even, but also more durable. This is due to the fact that when performing this procedure, the cutters remove a weak top layer of material with cement milk.

Diamond Cup Types

Structural features of the disks suggest their separation by application.

On sale today there are the following types of them:

• Double segment;
• Boomerang;
• Square;
• Turbo;
• Typhoon.

Now let's take a closer look at the features and purpose of each of these species.

Double segment

Для черновой обработки бетона или песчаника используют чашку двойной сегмент. Ее специализированный профиль позволяет быстро и легко устранить любые дефекты с бетона, кирпича либо натурального камня (читайте также статью «Демонтаж железобетона: причины проведения и особенности реализации процесса»).

As a rule, this nozzle is used to remove thick, uneven layers of the screed. However, it should be noted that this profile provides rough processing. Therefore, if you need to get a perfectly smooth surface, then you will have to complete the work with a nozzle of a different profile.

Boomerang

When performing finishing work, the material requires careful handling. Therefore, experts recommend the use of boomerang diamond cups for this purpose. More delicate grinding is achieved by using a less coarse segmental fraction.

This type of nozzles is the most popular, due to its low mass and multi-functional basis. Such cups are usually installed on manual angle grinders. It must be said that the boomerang nozzle works no less productively than double-row milling cutters, but is more stable and “soft”.

In addition, using this cup is much easier to achieve a perfectly flat plane of the material being processed.

Square

Diamond cups "square" have the largest share. They were designed to perform coarse, high-performance concrete operations.

In addition to polishing, when the surface is treated with this tool, a splitting effect occurs. This allows you to increase the productivity of work performed and at the same time reduce wear on the nozzle.

As a rule, this type of cups is used for surface treatment before further applying various polymeric coatings. This is due to the fact that the "square", in fact, is not so much a grinding tool as a roughing tool, which leaves a rough surface after processing.

As a result, processing allows not only to level the surface, but also to improve its adhesion with other materials, which is required when applying polymer compositions.

Turbo and Typhoon

These profiles have been developed relatively recently. They are specialized diamond cups, which are characterized by greater reliability and increased service life. They are used to process reinforced concrete, ultra dense types of concrete, granite and other hard materials.

Cup selection

To ensure the best efficiency and quality of grinding, you need to choose the right tool, in accordance with the specific working conditions. The choice depends on quite a few factors. The first thing to consider is what type of work will be carried out and what material needs to be processed.

In addition, one of the determining factors of choice is the equipment that will be used for grinding. In particular, you need to pay attention to the allowable size of the disk and the location of the mounting holes.

The internal diameter of the disc hole must match the diameter of the equipment shaft. When installing the nozzle should not be gaps.

The maximum number of revolutions per minute of the grinder for concrete must match the maximum allowable rotational speed of the cup. Information about the frequency of rotation contains instructions for the equipment. I must say that this is a very important parameter, as the safety of work depends on it.

Note! The cup must be equipped with an adapter ring. This will allow it to be used on almost any equipment.

As for the size of the nozzle, the standard diamond grinding cup for concrete is 125 mm in diameter, and the size of the bore holes is 22 and 23 mm. However, there are disks and other diameters - 150 and 180 mm.

In addition to size, you need to pay attention to other parameters of the tool. In particular, the diamond cup must be balanced and light, possess an optimal cooling mode. Only in this case, the life of the product will be long.

Features of working with a diamond cup

To ensure the greatest efficiency of grinding and increase the service life of the cutters, you must adhere to the following recommendations:

• Before proceeding to grinding, it is necessary to perform a rough edge treatment.. This will reduce the load on the tool and remove the "extra stone".

Depending on the type of material, stripping can be carried out with different tools, for example, cutting reinforced concrete with diamond circles is most effective, abrasive tools can be used for less durable surfaces.

• You must ensure that the cup does not come into contact with the sharp edge of the material.
• It is forbidden to process cracked surfaces.
• The maximum allowable water supply in the area of ​​operation of the tool is 2-2.5 atm., While the flow rate is 8-10 l / min.
• When pressing the cutter to the treated surface, you can not put excessive force.

• The force on the longitudinal movement of the machine should also not be large. In this case, the nozzle works with a small load, as a result of which its service life increases.
• Special care must be taken to properly run in the cup.. Therefore, the first 5-10 meters tool must be operated sparingly.
• The machine must be kept tightly with your own hands in order to avoid shock loads on the disc, as they extremely negatively affect the tool and reduce its service life..
• Working with diamond cups in the event of a power outage is strictly prohibited..

Compliance with these recommendations will allow the cutters to be operated safely and as long as possible.

Tip! Diamond tools can be used not only for grinding the surface. For example, diamond holes are often drilled in concrete, as this is the most efficient way to process hard surfaces.

Conclusion

Алмазные чашки по бетону являются современным инструментом, который значительно упрощает процесс обработки бетонных изделий. Благодаря различным вариантам исполнения фрез, их можно использовать при работе с разными конструкциями, делая бетонные поверхности более привлекательными (см.также статью «Антисептик для бетона: особенности выбора и применения»).

From the video in this article, you can get more information on this topic.