Diamond grinding cup: producers, varieties and reviews of owners

This grinding nozzle for the Bulgarian really looks like a cup. Diamond crumb on its surface allows you to process the most durable materials from those that can meet in everyday life. The nozzle can provide an invaluable service if it is necessary to process a natural stone of any kind, be it marble or granite. Also with its help you can grind concrete and brick.

The Bulgarian, with which the cup is used, should be quite powerful, otherwise it just does not master the friction when working with concrete. Grinding machines with a power of less than 1500 W at the slightest pressing on the surface to be treated will stop. This is not just unpleasant, but threatens to damage the device. So do not even grind the concrete floor if you only have a small amateur grinder. We need an instrument whose power is not less than 1800 W.

Varieties

There are different diamond cups (for Bulgarian) that can be treated with concrete. All inexpensive circles are the same in diameter, which is 125 mm. The radius of the inner hole is standard for all disks - 11 mm.

Along the entire circumference of the nozzle are the same holes. They perform two functions. First, with their help, the mass of the circle decreases. Secondly, they play the role of a radiator, without this diamond spraying would overheat.

The first difference separating grinding diamond cups is that the number and thickness of the segments are different. Without touching the rare and not so popular models, we will focus on the two most frequently used types suitable for carrying out various kinds of home repair work.

The focus is on a cup with a segmentation of the "turbo" type and a nozzle with two rows of segments.

Double-row cup

Rough processing of concrete and hard rock is made by a two-row grinding part. The nozzle is perfect for grinding a concrete screed, even if you need to remove from it a fairly thick layer - 2 cm or more. With its help, the Bulgar will blast the concrete surface as if it were oil, and the task will not seem as difficult as if you were working with any other tool.

Among expensive products of this type, you can choose parts of a larger diameter, for example, 150 or even 230 mm. These large two-row diamond cups make the task much easier if you need to process a large surface area, but the price of them corresponds to the pleasure obtained. A disk with a diameter of 180 mm is worth not less than 1300 rubles. Therefore, if the task is to polish a small section of the floor, maybe it makes no sense to buy expensive components, and dispense with the usual.

Segmented model "Turbo"

The grinding cup, whose diamond surface allows for more delicate work with concrete and stone, is called "Turbo". Segments with a continuous row run along the circumference of the nozzle. The gaps between them are narrow, they are located tightly to each other. In the construction of a cup of this type is successfully used to create beautiful stone edges and chamfers on stone and concrete blocks. Wherever rough grinding is needed, but thorough and qualitative, it will be advisable to use this tool.

Often, masters use this cup when working on stone products, which are characterized by smooth curves of shapes. Sculptors and engravers use it among other tools.

A cup of "turbo" is convenient to grind fine details of granite or marble monuments, blocks, columns and so on. After completing the work, the Bulgarian grinds the product with a flexible diamond disc.

Manufacturers

If there is a need to grind something even finer, requiring precision and accuracy, then you can buy grinding diamond cups, whose diameter is less than the standard. Products manufactured by Distar are 100 mm in diameter. They are quite high quality and are considered professional models. They are preferred by other masters who work with a stone, because the Distar cups are really handy to grind marble and granite. They are professional tools and are designed for daily work. Therefore, they will not have to be changed after the first attempt to grind something.

Main characteristics

A diamond cup is qualitative or not very much, depending on whether all three main characteristics are in accordance with the norms. Among the properties by which you can judge the level of this tool, you can distinguish such:

1. Type of bundle.
2. The quality and granularity of the spraying, which covered the surface of the working part of the cup.
3. Concentration in the diamond deposition layer of diamond particles.

If any of these parameters is unsatisfactory, then the product will not last for a long time.

Let's look at the main existing types.

Organic

This bond is characterized by a small hardness. A diamond diamond grinding cup for concrete, the cohesion of which is organic, allows the material to be processed quickly and efficiently. It does not heat very much due to its heat resistance. Material conducts heat poorly. A layer of concrete or stone is removed quickly and easily.

Circles with such a bunch are used for finishing work, when it is necessary to bring the already treated surface to the ideal state. They also sharpen tools made from hard steel grades, and generally handle everything that is made of hard, non-sticky material.

Metal

The metal bond is also inherent in strength and productivity when removing a layer of solid material. However, it is heated more strongly because of the high thermal conductivity of the metal. Because of this, the duration of the continuous work of the Bulgarian, equipped with this nozzle, has to be reduced.

Similar circles grind hard metal parts, cut ceramics and hard-to-work materials, produce primary processing of concrete and stone products.

A cup, the diamond surface of which is realized with the use of a metal sheaf, is also well suited for the refinement of surfaces already treated with a coarse disc.

Galvanic

If you need a diamond cup for sharpening metal parts, then a disc with galvanic bond is not the most suitable option. However, it can not be better suited for cutting technical glass, silicon, germanium; For processing stone at the level of texture; For manufacturing heads from diamond; For the manufacture of tools.

Disks with such a bunch are relatively inexpensive, cut well, allowing you to create any geometric shapes, conduct a good heat. Because of the thermal conductivity, they can not be worked for a long time, it is necessary to allow time to cool the material from which they are made.

Diamond coating on such cups can be applied in one or two layers. The diamond particles are fixed with a layer of nickel. The thickness of the fixing layer depends on the size of the diamond particles.

Grain

The coating of the grinding cups can be fine, coarse or medium-grained. The grain size is denoted by two digits. Fine grained circles are marked with a value of 100/80. The coarse-grained article is designated as follows: 200/160.

If you need a good diamond cup for concrete, suitable for most repairs, feel free to purchase a model with a grain size of 165/100.

A larger grain is useful for roughing work or when it is necessary to remove a thick layer from a metal surface. Fine-grained disks are used for sharpening knives and detailing already processed coatings.

For example, you can consider the process of grinding a knife. A cup with a large grain can change the shape of the cutting edge of the blade. The medium-grained cup recovers the remaining defects after rough handling. Final finishing is done by packing with fine grain.

If the letters contain the letters AC, then in the cover of the cup crystals of synthetic diamonds are used. This is normal, it is from such material that the dusting of disks for grinding is most often produced.

Owner feedback

A grinding cup is really necessary in the construction of an object. This can be easily verified by reading some reviews of people who use it for domestic purposes for a long time.

Often a cup is purchased for grinding a concrete floor, when it is required to remove an impressive layer of screed. At the same time, the work, which seemed to be hard labor for several days, takes only a few hours. There is a lot of dust, but, as users say, the tool is not to blame for this.

Some use it to create figures of stone, and also to make chamfers on bricks and blocks.