The crown on the concrete: an effective solution to repair issues

Recently, comfortable is not only life, but also a troublesome process, how to repair, which is compared to a flood or fire. Probably concrete crumbs and dust, flooding the room during the breaching hole in the wall, do have something in common with the disaster. All of this in the recent past. Modern tools, including the crown of concrete, led to the drilling process is much smarter.

What and how to drill. holesI amEnclosures for concrete

Make indentations in the concrete often enough, including the implementation of Electricity. furrows are made with the help of Wall Chaser. But the space for switches and sockets prepared in another way.

To determine the center, you first need to put on the wall of a cruciform layout, using a tape measure and a pencil. Then you need to outline the alleged circle done using drill four holes at the intersection of the circle and straight line layout, as well as in the center. After that, you will need a special cutter for concrete, ie the crown.

It is a piece of metal tube, one end of which has teeth from high material, and the second is a flange, via which the device is fixed to a rotary mechanism. The shank has a hole for mounting the centering drill which provides the desired direction of rotation of the crown. The drill always comes with a cutter. If you need to through-hole in the thick walls of the extension cable for the crown on the concrete. It significantly enhances the performance of the device.

The appearance of crowns has greatly simplified the process of making holes. In operation borer followed by knocking out concrete with a chisel, not only spent a lot of physical effort and time, but also they are misaligned recesses.

Key. crowns variety on. concrete for sockets

Cylindrical element in all bits the same, but depending on the material of the koto cerned made the cutting part, there are several types of crowns at the outlet of the concrete:

• with the cutting elements of hard metal alloys;
• of carbide-tungsten alloys (pobeditovye);
• Diamond Products.

From. features a cutting part and a method of operation depends perforator. For diamond and. tungsten carbide-crown fits unstressed drilling method for. metal, in which the cutting portion is in the shape of the teeth, - the shock.

Metal crown can be used only for concrete without reinforcement. The striking effect greatly reduces the service life: these bits can not be reversed. Use them more often for domestic use to perform a small number of holes, if necessary.

Carbide-tungsten. Crown also only suitable for non-reinforced concrete. They are quite convenient. used in forming holes in walls with a tiled surface.

Crowns diamond deposition is the most common one. They have a continuous annular coating of the edge. They can make holes in reinforced concrete and applying shock method that sparing effect on the structure supports being drilled.

Useful advice!When buying keep in mind that use diamond bit more often. all you need with running water. It cools the cutting edge of. Overheating while removing sludge and dust produced during the drilling

Principle. functioning of the diamond. Crowns for the concrete

Diamond bits may vary in diameter, method of connection shank, size, shape and quality of the cutting segments. Products marked "M", i.e. soft-coated cutting, are applied to work with solid concrete surfaces. They are self-cleaning dust arising during operation, which makes the drilling process more efficient.

Depending on cylinder size diamond crown can have 5 elements. cutting with a diameter of 6.5 cm or 32 cutting segments - the 65 gauge device. cm.

For standard grades of concrete used to crown the "C" markings, indicating that the spraying has high rigidity. Covering "T" (solid) used in the devices at reduced speed.

Diamond bits for drilling concrete can operate both in dry and in wet drilling process. Bits designed for drilling without water supply in the housing have a special shape of the cylinder bore, which contribute to the cooling of the edge during operation.

Diamond Drill Bits are easy fitting. Layer of concrete when drilling is destroyed only under the edge at the end of a crown is a cylinder made of stone.

When. performing substantial hole diameter and depth of the drilling machine can. secured with anchors. This situation contributes to a more precise. drilling, does not create a lot of dust, prevents jamming of the cylinder and lowers. noise level. Holes for podrozetnik often performed manually.

Typical diameters of the crowns on the concrete

Holes and depressions in concrete both in domestic as well as in production. order may be needed not only for installation of sockets, but when. laying pipes, cables and the like. d. Consequently, the sampling parameters are. are not the same, and therefore need different tools for making holes. dimensional figures: with a certain diameter for Enclosures for pipes - depending on the section, the cable - in accordance with the size of the track.

Each product comes with instruction, where required to indicate the characteristics of the crown, or this information is indicated on the label.

Useful advice!If Enclosures is available, but their diameter is unknown, it is necessary to perform measurements with a caliper on the outer edge of the product and according to the figures obtained to purchase the crown.

Crowns for the concrete to the gun may be sold either separately or together. The acquisition of a set of appropriate, if the application is not sporadic. Kits typically comprise 5-10 bits of different diameters that will perform any standard aperture size if necessary. Rigid packaging and compact arrangement of the tools it does not cause problems during storage and help to protect products from damage due to external impact of the environment.

Species. and the cost of the crowns on the concrete. 68 mm

Dimensions boxes for installing outlets and switches are standard. The recesses for them are performed using bits of concrete 68 mm. This is the most common option.

V carbide (pobeditovye) variants cutters set at a negative angle of 7 °. Such arrangement suppresses the intensity of the dynamic loads on the nozzle, and reduces the effects of radial mechanical runout. To apply such a nozzle can be for rotary power 850 W or more. As an attachment using SDS Rlus system.

Diamond. crown 68 mm diameter often has 4 segments with sputtering. Data. fragments are made by mixing diamond grit and metal. powder. The composition is subjected to pressing, with the result that formed. elements of desired shapes and sizes, which are then baked. Power. perforator for use this type of nozzle must be not less than 600 W, the recommended number of revolutions - 1000-3500 rev / min, nozzle type - SDS Rlus.

Most. frequently used crown with tungsten carbide have a mean spraying. grains are recommended for use on bricks, tiles and tiles, foam, solid gypsum. The optimum number of revolutions during such operation. nozzles - 1500 rev / min.

diamond crown Price Concrete 68 mm on average 7-10 thousand. rubles. At pobeditovye (with tungsten carbide coated) species is much lower - 4-6 thousand. rubles. The cost of metal products - 450-600 rubles.

The scope and applications of diamond bits for concrete 72 mm

Diamond core bit diameter of 72 mm is also often used. showerheads. It applies when the recesses for Escutcheon, junction boxes, or when laying communication pipes. Used with a drill or hammer. Crowns given diameter divided by two. type:

• for dry drilling;
• for wet drilling.

Bits recommended for use "dry", are on the sides of the cylinder. oppositely disposed recesses which provide cooling and cutting. edge during operation. Embodiments in the barrel without holes. require the use of cooling water flow.

Diamond bits for concrete 72 mm are used in the unstressed mode. They can be used to drill concrete, reinforced concrete, natural and artificial stone and ceramics. Recommended capacity rotary device - 700W and above, the rotational speed - 1500-2000 rev / min. Cutting mills fragments laser welded, which further strengthens the attachment strength.

Useful advice!If in the course of the tool rotation speed significantly. slowed down, should not increase the effect of pressure on the crown. It will not increase. efficiency, but will contribute to wear of the cutting edge.

Features. the use of crowns on the concrete. 100 mm

During the construction or repair work is often necessary to drill big holes, especially for the connection of water supply and sewerage. In such cases, a crown diameter of 100 mm. It is possible to acquire a cutter of hard metal. It is inexpensive - 400-450 rubles. Need not fear when buying a cutter in China, it is in performance is not inferior to Russian peers.

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Like the crown for concrete should be given time to cool, apply shock function power tools. The distinctive quality of this type of mills is quite fast wear it. After contact with the cutting edge of the armature is significantly damaged, so its further use in question. Before you begin, you need to be sure that in the way drilling will not meet the metallic elements.

More durable in operation when the holes diamond drill bits for drilling of concrete, especially for drilling large holes. If the amount of work to be significant, it is worth to buy the latest version. Even at a significantly high low (compared to metal crowns) such milling may be more cost effective.

Concrete crown 110 mm: application and fixing specificity

The diameter of the metal. bits is not more than 100 mm so that 110 mm for drilling holes and more. You need to purchase a mill with diamond coating.

To work with. attachment of this size will need an electric drill or a hammer capacity not. less than 100 watts.

Working concrete crown 110 mm, it is better to use water cooling. It warns overheating and otvalivanie soldered edge.

Some difficulties may arise in the process of fixing the nozzle to the. Power tool. The main part of the crown is compatible with hammers and drills. As for the options of large diameter (150 mm or more), some models. require special size fasteners. There are two types of cartridges, which play a major role in the process of fixing:

1. SDS-plus. They are part of the low-power design. tools weighing more than 5 kg.
2. SDS-max. They are equipped with heavier and more powerful models. Drifters.

Nozzle. It must have an appropriate shank to be combined with the type of attachment.

Industry produces adapters (adapters) that allow you to set the crown on one type of cartridge other destinations.

Important!You can not purchase and install a crown on the concrete 110 mm to the punch power of 800 W and. less. Using the adapter makes it possible to combine the design, but. engine performance is not affected. Large crown in the low-power. power tool facilitates overheating with consequent inevitable. consequences.

Crowns for the concrete Enclosures: overview manufacturers

In the market represented a fairly large variety of crowns. Among confirmed. high quality and good performance - Super Hard. This is an American company with. representation in different regions. Nozzles 80 provide mm. drilling of materials of varying quality, including in reinforced concrete.

Demand and bits for rotary hammers home producer "Dia Diamond". The company produces three types of attachment:

• Series G. High speed and good performance of concrete marks M100-M300;
• Series S. Recommended for concrete M400-M600;
• TOP series. Used when working with heavy material.

Popularity. and consumers trust earned crowns manufactured by Bosh. They. confirm the excellent German quality. Especially in demand tips. diameter 68 mm.

DeWalt line of crowns (US manufacturer) presented models of all existing standard sizes. They can perform drilling to a depth of 80 mm. crowns Prices for concrete DeWalt can be attributed to the middle segment. For example, a popular option wear nozzle 68 mm with a diamond plated cost an average of 7000 rubles.

cutter domestic production are quite competitive. "Anchor". It is worth to highlight the model 48280. This diamond crown, which can be. to use when working with concrete of all types, including reinforced as well. well drilling stone and ceramics. Working with her is recommended in unstressed. mode. The cylinder has openings for cooling.

price balance. and quality: the crown on the concrete "Distar"

Almost every buyer wants to purchase a quality product at the most reasonable price. According to the requirements of the conformity of the product with diamond-coated brand Distar. The company for 25 years on the market of tools that have been successfully used both in everyday life and in industrial applications.

Diamond bits for concrete 68, 72, 82 mm - most popular model. They are characterized by a significant resource and good drilling rate. Among this type of nozzles the most part has openings for the cooling, so that the need to connect the water does not exist. Segments diamond coating has a specific shape which allows withdrawing slurry, thereby cleaning the drill bit of the drilling waste, reducing work efficiency.

Crowns "Distar", depending on the characteristics of the material to be drilled, divided by three. categories:

• Ceramic and cermet;
• for marble and granite;
• concrete and reinforced concrete.

Crowns can be used as baits for different kinds of power tools with a torque of: Hand drills, rotary hammers, as well as stationary drilling rigs.

You can always pick up the option of the product manufacturer with the required shank, comparable with the design of the electrical equipment used. Fastener bits for concrete SDS Max, SDS Plus Distar production can achieve compliance with drill or a hammer, using an adapter 1 ¼ UNC and other types of adapters.

Useful advice!When you select the adapter you need to read the information carefully, component marking products. If there is an opportunity to test the adapter. immediately upon purchase in a store (should bring along. power tools), it is best not to neglect such a testing method. Is he. will avoid problems and ensure the full functioning of the nozzle.

Resourcediamond drill bits for concrete for Enclosures

Resource. crown depends on the objective and subjective indicators. The former should be. attributed according to the manufacturer specifications. They depend on the features. cutting segments and quality material to be processed. For example, for concrete crown diameter of 200 mm having a saturated diamond. spraying, designed for 18-20 meters of drilling in reinforced concrete.

Crown Diamond Concrete 68 mm SDS Plus under optimal conditions can take 14 linear meters. The larger diameter of the crown, the greater its life increases. It is ensured by a large number of cutting segments with a diamond coating.

TO. subjective reasons affecting the nozzle resource conditions and can be attributed. Operating method:

1. The use of shock mode power for crowns with diamond coating significantly reduces the service life.
2. Non-rigid attachment strut has skewed crowns, provoke the beating, which adversely affects the state of the cutting elements.
3. The consequence of excessive pressure and uneven flow can be rapidly damaged layer deposition.
4. Drilling without water contributes to overheating and otvalivaniyu cutting crown layer.
5. As a result of nozzles that are not designed for drilling concrete reinforcement, the metal can not only destroy the coating of the cutting segments, but also lead to disruption of the integrity of the crown.

Important!Can. upgrade the diamond coating on the cutting nozzle elements, but to restore the form. the cylinder can not be - such a crown is beyond repair.

From the foregoing it can be concluded that the nominal resource defined by the manufacturer is confirmed only in a proper tool operation.

The crown on the concrete: how to choose the right nozzle

Even if you have full information on the acquired nozzle to choose the right. instrument is not so simple. There are justifiable and legitimate questions. It may be wise to take stock of the device with the resource? Is it worth it to pay extra for. diamond version? To align the needs and opportunities. instrument should meet with the following selection algorithm.

First of all, you need to determine what kind of material to be processed. If you need a bit of brick, enough carbide products. Drill a large number of reliable concrete diamond crown. If the theory is acceptable in the presence of concrete reinforcement, the latter option is a must.

It should be appreciated. dimensions of planned holes and select suitable diameter crown having desired. chuck height. nozzle may be required for through holes. If. it is planned to drill holes of different sizes, it is better to buy a set of crowns.

It is necessary to match the power drive power parameters by means of which the work will be performed, the size of the crown. The larger diameter of the nozzle, the smaller should be the engine speed. For concrete core bits 68 mm - is 900-1300 r / min for 230 mm diameter nozzles - 390-450 rev / min. These figures reflect the number of revolutions without load.

When choosing. adapter, be sure to take into account the size and matching crown. Technical indicators power. In each particular case. you must decide what is the most important for the decision. goals:

• drilling speed indicator;
• operating life;
• material, manufacturer, price;
• length and features of the shank;
• whether or not as a mandatory prerequisite. use water as a coolant, and so on. d.

It should be understood that the tool if improperly applying it becomes a weapon that is most likely to do much harm to the person who uses it. The essence of the above article is the following: it is necessary to choose the right tool and apply competently. Only then he will become an assistant a man in his creative works.