There are diamond blades for cutting concrete products or bricks. Also, their variety is used when cutting tiles. Diamond blades are suitable for use with turbines, wall chasers, and also on machine tools.
At the moment, manufacturers provide the market with a very wide range of disks for different devices and different countries of origin.
Characteristics
Diamond blades are very durable compared, for example, to metal blades, and they also save quite a lot of time during the work itself.
Throughout the entire period of operation, the disc will retain both the depth of its cut and practically does not grind down. It is a metal circle made of the strongest steel (for tools), where cutters (diamond dust) are soldered at the end of the circle.
The welding used there is not conventional, but laser. Diamond spraying is done using a press, where the dust itself is pressed against the metal part of the product.
Varieties
Diamond blades are available for dry and wet cutting. Dry cutting discs are distinguished by the presence of special segments, which are not found in grinding discs. Now about the types in more detail.
A dry cutting disc for concrete is also called a cutting disc. There are special channels on the circle, between which there are sectors. This is due to the need to reduce stress on the cutting plane.
These channels also discard slag and other waste that occurs during cutting. From a technological point of view, such discs have a special type of boring that distributes stress and loads much better than usual.
Discs for grinding concrete. They are also called infinite. Its visual difference from its analogues is the absence of cuts on the edges of the disk, and the holes themselves (technological recesses in the shape of a circle) are usually located along the entire radius. They are also necessary for better voltage distribution.
But the main difference is that when using cutting discs of this type, a constant supply of water is required. Many people do not fully understand the structure of such disks, so it is better to look at the photo.
Operating rules
If you follow the rules of use and safety measures when working with diamond blades, then efficiency and durability are guaranteed. Let's look at the main points in more detail.
How to choose the right one
The main characteristic that you need to pay special attention to in order to avoid mistakes when choosing is the rotation speed of the circle. Slowdown occurs in the following cases:
- the device lacks strength;
- significant pressure force.
The result is overheating of the tool and a decrease in its maximum service life. To achieve high precision and quality cutting, special equipment is used.
Cutting depth
The indicator directly depends on the diameter of the circle. Working with the tool involves following the “step cut” rule: maximum depth is achieved through successive shallow cuts. This makes it possible to increase the service life of the cutting part and reduce friction.
Rules for tool feeding and optimal pressure
As a rule, working with diamond wheels does not involve significant pressure. The cutting machine's own weight is quite sufficient. The feed speed is set by the master independently, depending on the cutting conditions. It is worth paying special attention to interrupting work for the purpose of cooling equipment, including forced cooling. During operation, lateral friction leads to overheating, which can lead to deformation of the wheel and damage to the diamond coating. You should not work continuously for a long time. It is necessary to give a short rest and ensure that the coolant is supplied if necessary.
How to restore functionality
If you had to cut on various materials, such as reinforced concrete, wood or brick, then diamond blades become greasy over time. This results in decreased performance. You can restore functionality using the grinding method. Using an abrasive material will help with this. The result is a complete cleansing of the segments and restoration of the disk’s functionality.
Operating procedure
Before installing the drive, it must be carefully inspected. If deformation is detected, its use should be excluded. The circle is attached in a certain direction of rotation indicated on the equipment itself. As for the mounting hole and disk diameter, they must be similar to the parameters of the machine.
The disk is installed correctly, excluding distortions. The main point is tight clamping with the nut. Make a few turns in manual mode to see how correctly you have installed the device. Then start the car. The diamond blade has a rigid shape and makes straight cuts. He is not able to make curved cuts. You should first accelerate the tool without reaching maximum speed. When cutting, do not jerk or press hard on the disc.
Precautionary measures
When working with diamond wheels, you must fully comply with safety regulations. Carefully read the contents of the pictograms printed on the cutting device. Use only serviceable products and consumables for them. Pay attention to the presence of a protective casing on the machines. Manipulations are carried out wearing gloves and safety glasses. If necessary, use a protective mask, headphones or earplugs. It is advisable to wear protective shoes and clothing. This will help prevent accidents, preserve the health of the master and even his life.
Possible breakdowns
The following errors contribute to reduced efficiency and accelerated wear:
- improper use of the product;
- incorrect disk installation;
- the circle was chosen for the wrong type of work;
- the tool is in faulty condition.
There are options when the disk gets stuck. This can happen if there is excessive pressure on the machine. The movements become slow, the edge becomes smooth. To restore effectiveness, any abrasive material must be treated. The edge should restore the tuberosity. If the wheel gets stuck further, it is worth replacing it with a new, softer one.
If the cutting segment wears out in a short time, then most likely the wrong blade was selected. If it is too soft, it will not be suitable for processing hard material. Usually there are aggressive movements, too rapid wear of the segments, which is visible to the naked eye. The height of the segment reaches the body and the disk begins to wedge in the material. It is worth considering purchasing a tighter circle.
What other diamond blades are there?
For cutting concrete, discs that are made of reinforced materials are used. Their thickness is extremely wide, because then there is much more spraying.
During manufacturing, a layer of diamond sputtering is applied to the surface of the discs, distributed in a ring. This is clearly visible from the side; this edge of the circle is also called a “cup”.
When grinding concrete, structurally complex discs are used. They have a base made of tool steel on which grinding cups are mounted.
Excellent diamond discs for ceramic tiles
Ceramic tiles are a fragile material that requires careful cutting to avoid chipping and chipping. To cut the tiles, solid diamond wheels and low machine speeds are used to reduce imperfections. Here is a ranking of the best cutting wheels in this category.
Hard ceramics (200x25.4 mm) DiStar 11120048015
At the top of the ranking is a product from DiStar, which is a Russian company, but has established production in Ukraine. The product belongs to the professional category and has a diameter of 20 cm. The equipment is installed in tile cutting machines and is suitable for cutting pure ceramics, as well as ceramic granite up to 10 mm thick. The manufacturer has equipped the cutting wheel with a diamond coating height of 1 cm, thanks to which the service life of the equipment is much longer than its substitutes. When diamonds are erased, others are revealed in their place, so the cutting quality does not deteriorate over a certain period of time.
Our experts noted the disc in the rating as the best for cutting out mosaic components. It easily cuts glass, mirrors, ceramics coated with a decorative effect, and does not leave even the slightest dents. The standard mounting hole is suitable for all well-known types of electric tile cutters, so we advise specialists in facade finishing, showers and swimming pools to take a closer look at the product.
Positive traits
- clean cutting thanks to a 1.6 mm cross-section;
- suitable for cutting tiles coated with a decorative effect;
- able to cut glass or mirror;
- diameter 20 cm allows you to cope with thick tiles.
Minuses
- revolutions no more than 2860 per minute;
- We use only water cooling;
- Not available.
Ryobi TSB180A1 5132002694
The second best ranking place was taken by a product from the Japanese corporation Ryobi. The disc has a diameter of 17.8 cm and is placed on the WS721S tile cutter. But users in the reviews suggest that the equipment is perfectly compatible with a wide variety of machines, even Chinese ones, the landing shaft of which is 25.4 mm. If you insert the adapter sleeve, you will be able to use the disc on a manual grinder, but it is not calculated for dry cutting, and you will have to water the tiles. The Japanese manufacturer has equipped the wheel with a continuous diamond edge, ensuring the absence of chips on the fragile smooth surface.
According to our experts, the cutting component has earned its rating due to its silent operation. The disc quietly enters the ceramic, which is important when cutting for a long time near the residential sector. Reviews also praise the product for its ability to chamfer, which is convenient for laying tiles with wide joints. Executing all processes in one circle saves time.
Positive traits
- will withstand 8500 rpm per minute;
- universal use by cutting method;
- sawing tiles is not noisy;
- Compatible with a wide range of tile cutters.
Minuses
- needs to be wetted with a cooling solution;
- diameter is inferior to the rating leader in this category.
Ceramics (180x22.2 mm) DIAM 000211
At this place in the rating is a diamond cutting wheel from the Diam brand. The domestic product is produced with a diameter of 18 cm and a thin section of 1.6 mm, ensuring a neat cut. The cutting edge is continuous, thanks to this there are almost no chips during operation. If flaws do appear, the experts in the reviews make it calmer that this can easily be covered with putty. According to its intended purpose, the disk is designed for hand-held machines and small machines.
The main positive quality of this blade, for which it is included in the rating, is the ability to dry cut. The equipment does not require forced water supply for cooling, which makes it easier to use. We advise those who often work on the road and do not have the opportunity to take a machine with them to take a closer look. In such a situation, it will be quite possible to get by with an angle grinder. Another plus of the product is the price, which is very affordable in the rating category.
More details on the website expertology.ru
Dimensions
Almost all tools have their own standard size, diamond blades are no exception. The standard sizes are indicated in the markings, which indicate the width (of the slots), the diameter of the disk and the diameter of the hole for attaching to the turbine. If the width of the slot is not indicated, this means that it is minimal.
For construction, circles with a larger slot depth, which can reach up to 60 cm, are rarely used. Such discs are used in specialized industries involved in working on stone and marble.
Price
The price of a disc depends on two factors: diameter and quantity (quality) of spraying. With a disk diameter of 120 mm, the price for options with the smallest coating will be about 150 rubles, with an average one - 380 - 450 rubles, and for disks with high quality coating you can pay from 600 to 800 rubles.
The larger the diameter, the higher the price, usually from the previous one you can safely multiply by 45%, but the best discs for large diameter concrete cost more than 1000 rubles.
Excellent diamond wheels for concrete and stone
Products in this rating category are the most popular. They come in handy when cutting walls for wiring, cutting out window and door openings, dismantling partitions for walls and laying communications. Such discs are used in cutters (electric or gasoline), wall chasers, furrow cutters, and angle grinders.
Husqvarna 5748362-03
At the top of the ranking is a disc from a Swedish brand. This is equipment for qualified tools in the form of water-cooled gasoline-type cutters. The cutting component is made of very durable steel and is equipped with 15 long diamond teeth, measuring 8.5x40x2.4 mm. This configuration with a diameter of 230 mm makes it possible to quickly cut through hard concrete, brick and other cinder blocks. 15 grooves with a round base compensate for thermal expansion and remove dust from the cutting area. Experts in reviews praise the product for its “survivability.” Having bought a couple of disks once, you will be able to provide yourself with equipment for a long time with constant use at construction sites.
Our experts put the equipment in first place in the rating, as the best for step-by-step cutting through walls up to 40 cm thick. The saw part is easily immersed in concrete and brick, thanks to this, making openings or dismantling partitions will not take a lot of time.
Positive traits
- the set contains two discs;
- long service life;
- will not rotate on the shaft due to the additional 2 holes for the pins;
- 15 diamond teeth;
- deep grooves to remove temperature and dust.
Minuses
- high price;
- Every 15 minutes of continuous operation it is necessary to allow it to cool;
- non-standard mount for hand cutters (CnB) will not allow you to install the disc on an angle grinder;
- water cooling required.
Bosch 2608603241
The second place in the rating is taken by products from the German manufacturer Bosch. The diamond blade is produced as a set and sold in sets of 10 pieces at a time. Equipment that is designed to work with an angle grinder having a 2.2 cm landing shaft. The cutting wheel is made with a diameter of 15 cm and is equipped with 9 teeth with chimneyless cutting technology (accelerated temperature removal through deep grooves). Diamond coating has a triple layer, thanks to this, when one diamond wears off and falls off, it is replaced by another, without harm to the cutting parameters.
Our experts noted the diamond blade in the rating as the best for a small angle grinder to quickly cut a hole in the wall for an electrical connection or a pipe. Due to the 10 pieces in the set, such a one-time purchase, because the discs will last for 10-15 years, which is what experts like in the reviews. The tooth height of 1 cm also exceeds the performance of other manufacturers, thanks to which it has no equal in terms of cutting speed and heat dissipation. This is proven by the permissible rotation speed indicated on the packaging - 10,200 rpm.
Positive traits
- multifunctional bore diameter;
- does not require water cooling;
- due to the thickness of 2 mm, it is resistant to fracture;
- 10 pcs per set.
Minuses
- high price;
- it can’t be reached everywhere due to its small diameter;
- It is not difficult to purchase individually in all cities.
GRAFF GDD 18 350.10
In third place in the ranking is a diamond blade from a Belarusian company. Its price is much lower than other brands from Europe. Despite this, the circle has a diameter of 35 cm and is equipped with 24 diamond-coated teeth. The cutting part has a cross-section of 3.4 mm, which makes it possible to safely pass not only bricks, but also thick paving stones, and also curb blocks. Diamond
the composition is integrated into the metal by thermal crimping, increasing the degree of connection. In the reviews, the owners note that the disc is perfectly balanced, cuts smoothly and quickly.
Our experts liked the disc for its versatility, which is why it was included in the rating. It can be installed both on hand cutters to cut out openings, and on stationary stone-cutting machines for cutting blocks. Thanks to the chimneyless design, dry cutting is allowed, but the diamond equipment is also designed for watering, which increases the service life. Thick 3.4 mm diamond-coated teeth take a particularly long time to grind down.
Positive traits
- does not “walk” during cutting;
- can be used at speeds up to 5400 per minute;
- suitable for absolutely any type of cut;
- We use it for manual and machine tools.
Minuses
- not light - 700 g;
- it is difficult to cut a thin strip in the opening (it crumbles the edge);
- The mounting size of 2.54 cm does not fit the shafts of all machines.
PRACTICE 030-771
The fourth rating place belongs to the disc from the Russian manufacturer. The product is designated as a turbo segment, i.e. 12 teeth are further divided into parts for better cooling. Equipment with a diameter of 15 cm which is designed to work with a small angle grinder. Thanks to the special design, such a diamond-coated disc is not prohibited from cutting not only brick, but even reinforced concrete (with iron rods in the middle). Thanks to this, the wheel is constantly used when working in the area of reinforced concrete belts, trimming puffs and thin curbs. In terms of cost, the disc is considered a good replacement for expensive brands.
This diamond disc is structurally different from other models, which is why it is included in the rating of the best. Instead of short straight grooves, the circle has long slits cut at an oblique angle. Its diamond coating is not continuous, but jagged, which allows air flow not only along the grooves, but also between the cutting edge. This design contributes to more efficient cooling, which users agree with in the reviews.
Positive traits
- the price is not expensive;
- improved cooling;
- typical mounting diameter for an angle grinder is 2.2 cm;
- Use is allowed at speeds up to 10200 per minute.
Minuses
- the small diameter of the circle is suitable only for thin walls;
- It is absolutely impossible to cool it with water.
BISON 0515001
Fifth place in the ranking was taken by another product from a Russian manufacturer. This is a diamond blade with a diameter of 23 cm and a thickness of 2.2 mm. The base is made of tool steel with non-ferrous metal oxide. The cutting part consists of synthesized diamonds in an amount of at least 30%. The designers have provided compensation holes in it to facilitate the rapid removal of dust from construction work from the cutting area. The circle does not have pronounced teeth, but the cutting edge is raised, which creates a turbo effect. Thanks to the weight of 360 g, the accessory has less feel on the angle grinder. Users in the reviews note that cutting grooves with its help is not difficult.
This is the most inexpensive disc in the rating category. If you need to dismantle a partition at home or install new wiring, then it will be absolutely sufficient for a one-time project, and you will not need to purchase an expensive analogue. The disc is suitable for wet cutting, which increases its productivity - in this case you can work without stopping.
Positive traits
- suitable for rotation at 6600 rpm;
- any type of cut (dry or wet);
- the price is not expensive;
- Advanced design technology for dust removal.
Minuses
- will not cope with SHA-8 bricks;
- very high sonority during operation;
- wears out faster than its analogues;
- Suitable exclusively for angle grinders.
Feedback on area of use
When choosing and purchasing diamond blades, you need to decide on the type of work that will be performed, as well as the operating conditions. When buying cheap disks, you should take several pieces, as their quality will be very mediocre.
When working in ordinary rooms with not particularly thick walls, the usual version of 12-13 cm is suitable, but when cutting concrete lintels it is better to take discs from 20 to 25 cm.
