How to choose a drive for the grinder

The Bulgarian, or in another way, the angle grinder is a special tool widely used for both industrial and domestic purposes. As an active element, special diamond discs are used here - solid roundels fixed on the shaft and playing the role of a cutting edge. In order to work with the grinder was the most productive, the choice of disks for the tool should be given close attention.

Content

1. The best manufacturers of disks for grinders
   
2. Types of disks for the grinder
3. The main criteria for choosing a disk for the grinder
4. Features of the choice of diamond disc

The best manufacturers of disks for grinders

Masters working with an angle grinder tool recommend using branded discs made by those companies that produce grinders themselves:

1. Bosch

2. Makita

3. Dewatt

4. Hitachi

5. Shtill

6. AEZ

The characteristics and operational parameters of a particular disc can be obtained from the manufacturer’s catalogs, as well as based on user feedback on the Internet. You can familiarize yourself with them at thematic construction forums, as well as in social networking sites devoted to construction in general and metal processing in particular.

Types of disks for the grinder

Abrasive disc for cutting and grinding metal

Rather thin, from 3 to 6 millimeters, wheels. Made of special abrasive material that allows the possibility of cutting and grinding high-strength stainless steel with minimal disc wear. Discs of different diameters are available for use with grinders of various designs and capacities.

Virtues

• Compact size;

• Designed to work with all types of metals;

• Small thickness;

disadvantages

• Not suitable for working with natural materials and artificial stone;

Abrasive discs for grinding

It differs, first of all, in thickness - these disks vary from 4 to 8 millimeters. It has a lower rotational speed and is intended solely for grinding and polishing stone, granite, marble and other similar textures.

Virtues

• Thick enough;

• Inexpensive;

• Variety of models;

• Special abrasive compound designed for working with stone;

disadvantages

• Not suitable for working with metal;

Diamond blades for cutting natural and artificial stone

Thick, about 6-7 millimeters, disks, the face of which has a special gear structure. Due to the design features, such discs do an excellent job with stone processing and practically do not wear out. Special cuts and the selection of individual segments are designed to improve the cutting characteristics, as well as to divert temperature from the cutting edge during operation.

Virtues

• Suitable for work with all types of stone;

• The presence of special cuts and segments intended for temperature abstraction;

• High wear resistance;

disadvantages

• Quality road models;

• Smooth diamond discs are prone to overheating;

Stone grinding cups

Special discs made of durable polymeric materials, on the side of which special abrasive inserts are placed. Used for fine grinding of stone surfaces, as well as marble, granite and other materials.

Virtues

• Allow to carry out finishing treatment of the stone surface;

• Suitable for use with a variety of types of Bulgarians;

• High wear resistance;

disadvantages

• Expensive cost;

• During operation, a large amount of dust is emitted;

• Narrow specialization;

Flap discs for wood processing

They are special polymer discs, on the surface of which sandpaper inserts are fixed, used for finishing and polishing wood, as well as metal and many other surfaces.

Virtues

• Suitable for finishing;

• Emery paper of various grains allows processing of various degrees of depth;

• Allow grinding of a variety of materials;

disadvantages

• Low wear resistance;

• Narrow specialization;

Korshchetki

Special nozzles with rigidly fixed metal bristles, designed for finishing machining of metal and other surfaces. Used to clean surfaces from rust, paint and varnish, oxides and other defects.

Virtues

• High wear resistance;

• Variety of sizes and types of materials used;

• Pile of varying degrees of rigidity for processing various surfaces;

disadvantages

• Expensive;

• They are used exclusively for stripping material;

The main criteria for choosing a disk for the grinder

1. The diameter of the disk. The main criterion on which to rely when choosing a disk. Select the model that matches the characteristics of the used grinder. The most commonly used are disks with a diameter of 115, 125, 150, 180 and 230 millimeters;

2. The diameter of the mounting hole on which the disc is put on is an equally important factor, which is also selected depending on the type of grinder used. The installed disk must be firmly fixed, do not play or vibrate while working with the device;

3. Disc type. It is selected depending on what operations need to be performed. Cutting, grinding, cleaning, polishing - for all these and many other manipulations manufacturers provide separate discs and nozzles;

4. The thickness of the disk. Thinner discs are used for working with metal; stone processing requires circles of somewhat greater thickness;

Features of the choice of diamond disc

The characteristics of the diamond discs that should be addressed are very specific. The following criteria are supplemented by the following:

1. The number of diamonds. Preference should be given to averaged discs, the cutting edges of which have an average statistical number of cutting crystals. The use of an excessive amount leads to an increase in the cost of the disc without an improvement in the cutting properties; a decrease leads to a speedy exit of the disc;

2. The number of cutting segments. The more elements - the higher the cutting speed of the material. Conversely, the smaller - the slower the cutting, but the more effective the removal of dust from the cutting edges. The optimal value is from 18 to 22, regardless of the disk circumference;

3. The strength of the metal and its resistance to overheating. The friction that occurs during the cutting process contributes to a critical temperature increase. You should choose only high-quality discs from well-known manufacturers, otherwise there is a risk of getting a deformed disc after just one cutting procedure.

In the following articles, our experts tell how to choose a grinder and secrets punch selection.

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Attention! This material is the subjective opinion of the authors of the project and is not a guide to purchase.