Drilling holes in concrete with a diamond core cutter

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Drilling holes in concrete, diamond drilling, piercing in concrete

Drilling holes in concrete, diamond drilling, piercing in concrete

Drilling holes in concrete, diamond drilling, piercing in concrete

drilling, holes, concrete, diamond, core, cutter

Drilling holes in concrete, diamond drilling, piercing in concrete

Drilling holes in concrete, diamond drilling

Arrangement of openings, Installation of partitions made of gutted tiles

Concrete drilling, Diamond drilling, Concrete drilling, Brick drilling

Drilling holes in concrete, diamond drilling, piercing in concrete

Drilling in concrete, diamond drilling, piercing in concrete

drilling, holes, concrete, diamond, core, cutter

Diamond drilling in concrete

Diamond drilling technology is used when holes of ideal shape are required, without additional processing and grinding. This technology can be used to create holes in both vertical and horizontal planes. Also, drilling at an angle is practiced. With diamond drilling you can make holes up to 500 mm in diameter and several meters deep. Drilling speed depends on the hardness of the material and the diameter of the hole and varies from 1 to 5 cm/min.

The hallmark of diamond drilling is a high speed of cutting, minimal preparation for the process itself, the absence of vibration. This technology allows you to make holes in the walls without damaging the facade of the building and maintaining all the original properties of supporting structures.

Diamond drilling has many advantages, among which are:

  • high speed and productivity;
  • ideal surface of the holes, not requiring additional processing;
  • The exact size of the hole;
  • ability to make holes without a lot of dust and noise;
  • The absence of vibration;
  • Possibility to drill holes of large depths and diameters;
  • Corner and hard-to-reach holes can be drilled;
  • possibility of drilling holes in any hard material (concrete, reinforced concrete, brick, natural and artificial stone, asphalt, etc.). п.).

The most powerful argument for choosing diamond drilling is the ability to work reinforced concrete with different degrees of reinforcement.

Dry and wet drilling

Depending on the conditions and the material to be drilled, two methods of drilling with a diamond tool are used: dry and wet. Dry drilling is rarely used. It is used, for example, when construction work is carried out in rooms with already installed flooring, which must be protected from moisture. This method makes it possible to make a hole in the concrete with a diameter of 350 mm or less.

Diamond drilling with water is much more effective. It can be used to drill holes up to 600 mm in diameter. The water-cooled drill can drill continuously. Not so much water is required for wet drilling.

For example, to make a hole with a diameter of 10 cm in a wall that is 0.5 m thick, you need no more than 5 liters of water. In addition to cooling, the water also acts as a cleaner. It cleans dust and grit from the hole. The mixture of water and concrete dust (sludge) is removed from the hole with a special vacuum device, similar to a vacuum cleaner.

Diamond drilling equipment

As equipment for diamond drilling is used:

HOW TO use Hilti DD 120 diamond coring tool for wet drilling into concrete

  • hand tools. This includes impact drills and rotary drills. They are mainly used to drill holes with small diameters;
  • Stationary drilling machines. This equipment is used to make holes of different diameters required for the installation of all kinds of utilities.

Although almost all modern drill models have a hammer function in their arsenal, they still cannot replace the torch. It is connected with the fact that the drill is not designed for continuous impact loads. In short, the drill’s impact function is an additional option, designed for short-term, one-off uses.

The main function of a rotary drill, as opposed to an impact drill, is drilling with a hammer and chiselling. The drill has a more robust design for these functions, enabling it to withstand even the longest shock loads with ease. With the same power, the impact drill can drill a hole that is about 1.5 times the diameter of a hole made with a drill. This difference becomes even greater with a drill bit.

Drilling with a rotary tool

As mentioned above, the main function of the peorator is drilling, and the impact drill is drilling. This difference is the reason for the different impact mechanisms. The impact mechanism of rotary drills has a rather complicated design and is offered in two versions. electro-pneumatic and electromechanical. The electro-pneumatic type of hammer mechanism is more widespread because it provides the best performance of the tool.

The impact force determines the operating time of the equipment, as well as the physical effort applied by the operator. Professional peorators have the impact force up to 18 Joules, which allows to work very quickly and relatively easily on the hardest materials. The speed at which the work can be done also depends on the frequency of impact, which in turn depends on the power.

Professional drillers also have a number of other features. These include safety valves, drilling depth limiter, frequency regulation, easy start function, vibration and dust protection. The rotating and hammering action of the rotary drill is the operating principle.

Its frequency of blows is rather low and averages between 1000 and 5000 blows per minute (as a comparison, in an impact drill this figure is 40 000). But the peorator has a very high force per blow. It is therefore more suitable for working with materials such as concrete and reinforced concrete.

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For drilling blind holes in concrete or brick, as well as for making through passages in the walls for laying cables or pipes, one of the main modes of operation of the perforator is used. drilling with impact. The effectiveness of percussion drilling is that diamond drills or core bits, due to the high force of individual blows, penetrate very quickly into hard substrates, while making holes of high accuracy and quality.

The most popular among professionals are the rotary drills made under the brand of AEG, Bosch, DWT, DeWALT, Makita, Metalbo, Milwaukee, Hitachi, Kress. All these companies are specialized manufacturers of building equipment that guarantees the maximum quality, performance and reliability of the torches.

Their high enough cost is justified by long service life, ease of operation and excellent build. Even domestic models of these brands can withstand quite intensive use.

Stationary machines

Impact drills and rotary hammers are used for small construction jobs. If you want to drill holes of large diameter, length and in large quantities, then use a professional diamond drilling rig. Only those firms that are engaged in regular repair and construction work have such equipment.

Concrete drilling rig consists of a stand, a base, a motor with a gear. Drilling is performed with ring bits, which are hollow cylinders with diamond segments soldered on their ends. The drill stand is attached to the surface to be drilled. Either a vacuum plate or an anchoring system is used for this. Such anchoring provides maximum accuracy, which is especially important for large-diameter holes.

During operation of the drilling machine the cutter head is spun up to high speed. the machine continuously supplies water to the hole that is to be drilled. Water cools the tool and flushes sludge out of the hole. With this equipment drilling can be done horizontally, vertically, and even at an angle. Some models allow you to drill with a different angle.

The tools for drilling

Different cutting tools are used for drilling in concrete. When choosing a tool, one should take into account the size of the future hole and the strength of the material of the surface where the hole will be drilled.

Choice of tools depending on the size of the hole:

  • Concrete drill bits attached to a hammer drill or a rotary drill are used for drilling small holes;
  • Drill bits with a drill are used for drilling long holes;
  • Bits and drilling machines are used for drilling large holes.

Concrete drill bits

Concrete drill bits tips are made in the shape of X or T, which has a positive impact on speed and quality of drilling. Drills are available in two versions: for an impact drill and for a peorator. The drill bit has a continuous cylindrical shank, while the core drill bit has a slot in its shank.

Standard drills are available with diameters of 8-16 mm and length of 25 cm. They are divided into three types:

  • SKA1. They are used for treatment of surfaces made of concrete grade M250-300;
  • SCA2. They are designed for processing concrete M300-500;
  • SCA3. Work with concretes above M500.

Diamond drills are mostly used in apartment renovations. They are used for accurately and quickly drilling holes for switches and sockets.

Concrete drills

A drill differs primarily in diameter and length. With this tool you can drill holes to a depth of 1 m and a diameter of up to 30 mm. The drill looks like a metal drill rod, with diamond-powdered teeth welded to the surface. It is with these teeth that the impact drill jaws dig into the workpiece with great force and overcome the great resistance of hard building materials such as concrete with amazing ease.

Drills are produced with shank of the following standards:

The difference between the drills lies in the number of working edges and the shape of sharpening. When choosing a drill for a particular type of work take into account two main parameters. the peculiarities of the used peorator and the material of the wall to be drilled. Depending on these parameters drill diameter, length and form of shank are chosen.

Diamond drill bits

In those cases where it is necessary to drill a hole with a diameter of more than 30 mm, drill bits are used. This tool is a hollow cylinder, on one end of which is a welded shank for installation in a chuck, and on the other end of which are cutting elements coated with diamond grains with grain size of 150-500 microns. There is usually a special drill bit to center the hole, protruding 1-2 cm over the edge of the drill bit.

Diamond segments are a combination of synthetic diamond and a special metallic powder. Synthetic diamonds are used to manufacture the segments, as they are far superior to natural diamonds in durability and strength. These are the characteristics that determine the key advantages of diamond drill bits: long life and high performance.

Diamond core bits can easily handle both concrete and reinforcement, which is an integral part of any concrete structure. The tubular design of the teeth allows to drill holes of any depth in one pass and without any deviations associated with runout. Bits with diameter up to 100 mm can be used both with professional tools and with domestic drills for works without cooling. Diamond drill bits of large diameters are designed exclusively for installation on professional drilling rigs that use water cooling and forced hole evacuation by means of a compressor.

Diamond bits are differentiated by diameter, length of cylinder, shank design and type of cutting segments. Working segments with a soft matrix (designated with the letter “M”) are used for particularly durable concrete. They can easily self-clean from drilling debris. For normal reinforced concrete the medium-hard diamond bonded segments (type “C”) are used. Solid matrix segments (labelled “T”) are used for high-carbon concrete at lower speeds.

Modern market is full of diamond tools with different features and advantages. Highly precise and durable professional tools with universal adapters are made by the well-known Bosch. Cedima products are able to drill effectively through concrete surfaces up to 5 m thick. AEG products run reliably at 8000 rpm and feature universal adapters for fast tool changes. Such domestic manufacturers as Adel, Alaton, Splitstone, EuroPrice, Niborit and others also offer high quality products.

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Technological stages of drilling holes

The room before starting diamond drilling requires no special preparation. Only plaster must be removed from the walls. This is necessary in order to fasten the core drill rig reliably to the wall. To prevent water leaking onto the coated surface, a special water collection ring is installed.

The diamond drilling process consists of several stages:

  • Preparing the work site. This place is carefully studied in order to identify the dangerous proximity of electrical wiring, pipes and other utilities. Depending on the parameters of the future hole, the optimal diameter of the cutting tool is selected. The center of the hole is marked;
  • equipment installation. The drill bed can be secured with vacuum or dowel bars. The place for the anchor dowel is selected using the latter method. It must be in the middle of the slot in the base frame. Vacuum fastening is used when drilling into smooth surfaces or into more expensive materials such as polished granite or marble. The machine itself is positioned on a fixed column, with the required tool diameter. The entire construction is carefully checked for play. Particular attention is paid to the chisel and core bit carriage fastening elements. Then the water cooling system is introduced;
  • drilling the hole. The most important step to get the hole with the right cut and the right diameter. To create holes with a diameter exceeding 500 mm, teeth with a diameter of 100-120 mm are used. They are used to drill out concrete in a circle of the required diameter.

Depending on the hardness of the concrete surface, diamond drilling is carried out at a speed of 2-3 cm/min. The tool digs into the building material at very high RPM and simultaneously grinds the edges of the hole being produced. Since there are no dynamic loads in diamond drilling, cracks and chips in the machined surface are completely eliminated.

Nozzle attachment types

the most cost-effective process is soldering. The cutting tooth or fragment is manually applied to the silver substrate. Brazing gives a holding force of up to 12 Newton when working. At the slightest overheating, the silver layer melts and the fragment falls off. Supplied complete with water collector and manual water blower. For example, up to 1 liter of water is needed per minute for a 12-32 mm crown. Crowns up to one meter in diameter require up to 12 liters of water per minute. The dependence of the water flow on the size of the drill bit is non-linear.

Laser welding puts the manufacturing process of drilling crowns on stream. The fragments are positioned perfectly straight, with a uniform indentation from the center of the working area.

Tensile strength up to 40 N/m. The driving force is a special machine, which costs a lot, which means that the bits themselves are not cheap either.

Diamond spraying is the most common. It is obtained by both soldering and sintering. These products pierce through tiles, tile, porcelain stoneware and ceramic. Sold in sets. a specific working diameter range corresponds to a specific set.

Main characteristics of drill

Diamond drilling of holes in concrete is carried out with a drill, which has a circular design and is called a crown. It can handle a variety of materials, for example:

Crowns can have different diameters and lengths. They are used in combination with machines to mechanize the process. When choosing this consumable, you need to pay attention to the safety margin. When comparing with an ordinary drill, which works on the entire plane of the material, the fact that the drill bit works only with its cutting edge, stands out. This reduces friction and noise, reducing debris generation and increasing productivity. Crown edges are distinguished by their flatness. These products may have different threaded connections and working lengths. Note the number and width of each segment.

Price for drilling with diamond drill bits

Diam. holes in mm.Works with bricks and screeding in cm.Concrete in cm.Reinforced concrete per cm.n with a diameter of reinforcement 16 mmIn reinforced concrete, / cm.Rebar diameter above 16 mm
25-52 18,8 25,6 30,2 31,3
62-82 20,3 28,4 32,8 36,1
92-102 25,8 34,5 39,0 43,4
112-122 27,8 36,5 44,3 50,3
132-152 31,2 41,1 48,8 55,1
162-182 36,4 47,8 55,1 62,4
190-210 46,4 58,1 65,5 73,8
202-222 54,4 72,3 77,3 86,2
252 63,7 86,8 94,0 96,6
272 74,2 102,2 115,0 129,3
302 81,4 107,9 129,3 147,0
352 109,1 138,6 169,5 184,7
402 141,3 166,1 197,0 221,5
452 173,0 207,4 235,3 281,5
502 215,2 249,3 298,0 333,0
602 260,0 300,0 351,0 383,0

Specialized equipment with a diamond crown is universally used for:

  • Making holes for installing sewer and heating utilities;
  • creating holes of various diameters in load-bearing concrete walls to install air ducts, the organization of openings for the installation of ventilation systems; residential buildings, premises of commercial and industrial facilities;
  • Forming openings for installing windows and door leaves in brick, concrete bearing walls of multi-storey buildings;
  • The diamond drill is used to dismantle individual fragments of wall structures in the course of repairs during the redevelopment of the living space;
  • forming wall recesses where recessed furniture, safe, various decor elements will be installed;
  • Cutting in the horizontal and vertical surfaces of technical joints, etc.д.

Rule 4: You pay twice if you’re stingy

Brazing of segments on the body is made by two fundamentally different ways: by laser welding and through brazing with silver solder. Crowns with laser welded segments are more expensive, but their connection is more durable. When drilling highly reinforced materials it is more profitable to buy one drill bit with laser brazing than several drill bits with silver brazing. For drilling abrasive materials and unreinforced concrete, a drill bit with silver solder is quite suitable.

Diamond core drilling in concrete

Bits with a diamond dusting are used for drilling holes in concrete, porcelain tiles and other hard materials. During the process, follow a number of mandatory rules. Before you drill with a diamond drill bit in concrete, learn how to do it properly.

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Diamond drilling is a hammerless process that produces perfectly round holes in concrete, brick or reinforced concrete. This can be achieved with a tool equipped with diamond-toothed bits.

Pay attention! The first diamond boring was created by the Swiss watchmaker Leschaux in the middle of the 19th century. His invention was used in the construction of the Mont-Cenis tunnel. But the method and device became widespread only after the successful synthesis of artificial diamonds.

Pros, cons and uses

The advantages of diamond drilling holes are:

  • Obtaining even holes and cuts, without cracks or chips.
  • Drilling depths of up to 2 m and diameters from 1.6 to 60 cm are possible. Working at almost any angle is possible.
  • No vibration, which gives additional load on the bearing walls. It is possible to drill even in dilapidated buildings.
  • High speed regardless of the material.
  • Drilling into the wall without noise and dust and without danger of injury from concrete splinters.

The disadvantages of the process are high cost and the need to strictly follow the technology, because any error can ruin the equipment. Workers must have sufficiently high qualifications and experience with tools.

Diamond drilling holes are used:

  • When laying vertical and horizontal utility systems: sewerage, heating, gas pipelines, etc. д.
  • When carrying out natural ventilation.
  • For installing windows in basements, piercing doors and windows in solid walls.
  • For the installation of staircases and railings.

Drilling Holes Into a Concrete Slab By Diamond Core Cutting Machine


The experts at MSKDemontazh specialize in drilling blind and through technological holes of different diameters with professional diamond equipment. Branded drill rigs make it possible to create holes with perfect geometry to meet any customer requirements.

The use of modern diamond tools is successfully implemented in the process by MSKDemontazh specialists:

Drilling technological holes in the horizontal, vertical, inclined plane;

Installation of ventilation ducts, heating system;

Laying sewers, pipelines and cable lines;

For making holes for intake vents, air vents and ducts.

Experienced performers in the manipulation of the diamond technique perform the following steps:

The diamond drill bit with the appropriate diameter is selected for the specific target;

Securely attach the diamond drill rig, ensuring that the working surface is firmly fixed;

Water supply to the tool to avoid overheating and premature failure;

Install a tank for collecting waste water;

They start the unit and perform a full cycle of drilling followed by cleaning of the work area.

Impactless technology of diamond core drilling in concrete prevents cracking of building material, thereby minimizing the risk of collapse and weakening of the bearing capacity of walls and floor slabs. Increased safety is a key quality criterion for dismantling, allowing a long and efficient operation of the property without any restrictions and concerns.

Diamond drilling of holes in bricks

Cutting door and window openings in masonry houses and non-residential buildings with impact-free diamond cutting technology is our specialty. Operators of diamond installations can quickly and qualitatively perform partial or complete dismantling of ceilings, load-bearing walls, interior partitions while observing safety regulations.

Successful competent operation of professional tooling with branded components allows:

Cut multi-layered masonry without dynamic impact on the material, without damaging the surrounding structures;

Minimize dust and noise generating during dismantling manipulations (powerful industrial vacuum cleaners and water use for dust binding. the guarantee of cleanliness and preservation of interior in proper condition);

How to use a diamond core drill

Always meet urgent orders on short notice, without compromising cut quality and accuracy;

Comply with warranty obligations, fully realizing the customer’s needs.

List of key phases of diamond drilling holes in brick:

Measuring stage and drawing of final markings;

The main phase of drilling technological holes;

Removal and removal of the dismantled brickwork blocks;

Installation of pre-calculated and designed reinforcement project (channels and angles).

Availability of a wide arsenal of working equipment, from handheld cutters to the powerful wire machines for sawing thick walls. The use of failure-proof diamond discs and equipment of foreign production allows to carry out large volumes of complex dismantling works in the shortest possible time and with a guarantee of a high quality.

Use the profile services of MSKDemontazh. transparent pricing and excellent service is guaranteed!

Drilling holes in reinforced concrete

Home renovation, restoration and construction, normal household needs. the need to drill in reinforced concrete structures arises very often. Because of the heavy-duty structure of reinforced concrete, you can not do without professional, powerful equipment.

Skilled executors follow all technological aspects of dismantling procedure and guarantee 100% safety during drilling holes in reinforced concrete.

Identification of functioning wiring, pipes and cables in the walls to ensure that they can continue to be used;

Marking for a precise hit of the drill bit in a given place of the wall structure;

Smooth start of the tool and observance of optimum drilling mode in order to prevent premature failure;

Providing an uninterrupted supply of coolant to preserve the operating life of the drill bit and avoid dustiness of the room;

Removal of excavated concrete fragments and cleaning up of the site.

To form wide technological holes with smooth edges for the installation of utilities, we recommend using the services of specialized experts of MSCDismantling.

The operator operates according to a well-established pattern. it contributes to:

Preserve the load-bearing capacity of wall structures;

Prompt implementation of the set tasks without exceeding the budget specified in the estimate;

The maximum level of safety at the site;

Original planning solutions.

Before you cut an opening in the concrete wall or dismantle a part of the bearing construction, think of the possible consequences. It is better to approach this question responsibly and enlist the support of the MSCDemounting professionals.

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