Drilling with diamond drilling machines in reinforced concrete structures

Diamond core drilling machines

The diamond drill rig is a group of tools designed to make large diameter holes in concrete, brick, artificial and natural stone. Based on diamond technology, the drill can produce holes up to 250 mm in diameter in reinforced concrete. With each drilling rig it is possible to use diamond core bits of different diameters. That’s why this group of tools is in demand when laying pipes, ventilation and communications.

The diamond drill rig consists of a motor, spindle assembly, gearshift knob and water feed unit. In some models, these elements are fixed to the guide pillar and move up and down on it when the lever is pressed, in others they are combined into a design that looks like a peorator. An electrical starter is available for activating the machine. Choice of operating mode is made by shifting gears and affects the cutting speed. Transport handle and wheels can be provided in the design for easy movement of the large-sized unit.

Working principle

Before starting the drilling machine is fixed on the basement with anchor bolts and the diamond drill bit is attached to the spindle unit. The machine is connected to the mains and a coolant system. User selects the operating mode and presses the start button. tool begins to rotate. Lever needs to be pushed gently into the material. Smooth running and water cooling system makes it possible to produce high quality holes.

  • Power. The performance of the equipment depends on this parameter, and therefore, its capabilities. For example, a diamond drill rig with 1600 watts has a drilling diameter of 120 mm, the model with a capacity of 2700 watts. 355 mm.
  • Number of speeds. Multiple speed modes let you adjust the drill to different material hardness. Models have 2 or 3 speeds. There are simple machines with one speed, which is enough for work with one material.
  • Tilt angle. If the equipment has an inclined stand, it is possible to drill at an angle. For example, in many models this parameter can be adjusted from 30 to 150°.

Diamond drills are among the most powerful representatives of this tool. Their use is associated with high loads and long periods of fault-free operation under extreme conditions. Diamond drills are chosen by professionals to solve their tasks quickly.

Drilling with diamond core bits. This is a relatively young and fast-growing technology. This is carried out with powerful drills with special diamond core bits.

Advantages and disadvantages

No dust or flying debris make diamond drilling the safest drilling method.

  • Getting a hole up to 15 m deep.
  • Any angle of inclination.
  • Removal of dust and debris with water.
  • Drilling. regardless of the position of the reinforcement mesh.
  • Fast work performance due to minimal preparation and high drilling speed.
  • Exactly determined hole shape can be achieved.
  • Low noise level. Allows diamond drilling of reinforced concrete in apartment buildings.
  • Absence of vibrations that lead to cracks in the structure.
  • Any drilling pattern.
  • The drilling machine is powered by 220 V mains.

The disadvantages include the following factors:

  • High cost of diamond drilling equipment. Tools require professional care and careful handling.
  • The need to replace consumables from time to time.
  • Additional water drainage must be installed on the equipment to prevent water from leaking onto the floor and wall.

Areas of application

The diamond hole drilling machine can come in handy in a high-rise building or a suburban mansion. Since the technology is distinguished by the silence of the work performed, it is used during reconstruction or repair work. Laser drilling holes in concrete is a non-existent technology, which is sometimes referred to as diamond drilling of hard materials. Drilling with diamond elements is widely used in construction and repair work, such as fixing the supports of awnings or the installation of garden decorations or furniture. This type of drilling is used to form a new door or window opening when remodeling. The following tasks are performed with the help of diamond drilling technique:

  • installation of gas and heating pipes;
  • wiring, installation of outlets;
  • Creating holes and openings for ventilation and drainage;
  • installation of air conditioning and fire protection systems;
  • Installation of chemical anchors for concrete;
  • fence fixing.

Applications

A diamond drilling machine can be useful in a multi-story building or a country mansion. Since the technology is characterized by the quietness of the work performed, it is used during reconstruction or repair work. Laser drilling holes in concrete is a non-existent technology, which is sometimes referred to as diamond drilling of hard materials. Drilling with diamond elements is widely used in construction and repair work, such as fixing the supports of sheds or installing garden decorations or furniture. This type of drilling is used to form a new door or window opening in redevelopment. The following tasks are performed using the diamond drilling technique:

  • installation of gas and heating pipes;
  • wiring, installation of outlets;
  • formation of holes and holes for ventilation and sewerage
  • installation of air conditioning and fire protection systems;
  • installation of chemical anchors for concrete;
  • fence fixing.

Necessary equipment

The rig for drilling holes in concrete has the following types:

  • Handheld cutter. Used in case of limited working space, in particular, in residential apartments. Easy to carry, it takes up little space and allows you to make holes at different angles.
  • Wall saw. Used to cut new openings in concrete, reinforced concrete, brick walls. The cut is smooth and the slab is not deformed.
  • Installation with ropes. Cutting of concrete with metal ropes belongs to the professional technology and is used in private cases. Cutting depth up to 1.5 meters.

The concrete drilling machine is fitted with an electric motor. Common portable models of cutters allow you to drill a hole with a diameter of up to 3.5 cm, without overloading the power grid. If a larger diameter and depth of cut is required, powerful machines with hydraulic drives are used. During operation, it is important to ensure that the machine for drilling holes in concrete was serviceable. The cutting edges must be replaced or resharpened before they become dull.

How not to ruin the finished repair by diamond drilling?

Drilling holes in walls and ceilings with diamond crowns refers to major works, which produces a significant amount of suspension of water and workable material. cement, ceramics, sand. The slurry gets on a diamond drill bit and receives a rotational motion, splashing in the work area (no further than 1 meter), after a few hours the water evaporates, and all that is left is to collect the solid powdery substance with a trowel and vacuum cleaner, or wipe with a damp rag.

When using the room often need to connect new communications, the reasons are many. you need to make a hole for air intake and exhaust ventilation, the object is connected to the gas supply, and you want to make a neat entry pipe in the house, carrying plumbing fixtures and other. Do not worry about this issue, diamond drilling holes will not spoil your finished repair.

Having at its disposal a special draining device connected to a professional “water pump”, we collect 98% of the slurry. Why does only 98 percent of the dirt collect? The answer is quite simple. Clean drilling of walls made of reinforced concrete technologically looks like this: the diamond drill bit is put on the mounted installation to make holes of the required diameter, and a system for drainage is attached to the wall with a vacuum or a clamping mechanism.

We switch on the vacuum cleaner and the installation. Drilling into the wall begins.

Let’s consider the variants of appearance of some moisture in the room when drilling a hole in the wall:

  • The passage of the fittings is the first pitfall. The diamond tip starts to vibrate a little, the direction of the vibration is parallel to the tip (the operator feels the recoil), at the moment of this micro recoil comes the drop splashes, and the bulk of the liquid goes to the drainage device. It is possible to fight with the droplets by fixing a rubber band to the water catchment that tightly fits the crown, but from the long drilling of the reinforcement bond begins to melt rubber and then not water, but droplets of sticky rubber fly on the ceiling, the floor.
  • Rough wall surfaces or grooves. Small spills can occur due to poor contact.
  • Leakage under wallpaper. Wallpaper with air s can also cause leaks.

What can cause leaks when diamond drilling holes in a brick wall. Bricks seem to have a lower density than concrete, and the drilling speed of brick walls is not comparable to that of reinforced concrete. That’s right, but there are nasty surprises when it comes to the finish drilling of holes:

  • Diamond drilling holes in a brick wall, the price of which is lower than working with monolithic concrete is performed as usual, the only difference is that the seams between the rows are not airtight, and the leakage can be observed a meter from the drilling site.
  • Hollow bricks are more like a communicating vessel system. Where will the water go and who will get it out?? In such case we try to limit water supply to the drilling zone.

Force majeure circumstances of the diamond drilling rig include a power outage when working with the vacuum water collection ring. it just falls down!

We also did not mention that there is undercutting from all connections of the drilling rig, because the water is pressurized, and the connections are collapsible and not airtight.

Where to use diamond drilling holes

Now it is hard to imagine modern construction without the use of diamond drilling. Here are some of the jobs associated with diamond drilling:

  • Drilling holes for ventilation;
  • Installation of air intake and exhaust devices and valves in t.ч. Ventilators (e.g., TION, KIV);
  • Drilling holes for sewer lines;
  • Drilling holes in the ceiling for heating, water risers;
  • Round and square openings for ventilation ducts;
  • Drilling reinforced concrete for a cooling/air conditioning system;
  • Drilling holes in foundations;
  • Different floor recesses;
  • In road construction;
  • Installation of anchors;
  • Penetration of openings in concrete walls and ceilings;
  • To punch (drill) a hole in the foundation for a sewer, etc.д.

With diamond drill bits you can get not only round holes, but also any other shape by piercing holes on the perimeter. However, for rectangular openings, a circular diamond cutter is more commonly used.

Diamond disk cutting of openings can reduce the cost and lead time of making an opening. If there is no possibility to cut through the opening with the disc, perimeter group drilling of a rectangular hole is performed. The cost of drilling a group of holes is lower than that of a single hole.к. No need to constantly relocate equipment.

Unit designation

Concrete drill, according to the materials used for manufacture, consists of:

The main purpose of the cutting tool in everyday life is creation of holes with diameter up to 6 mm and depth up to 100 mm in concrete or brick construction. The latter material is inferior in strength to concrete, in addition, more fragile. Therefore, it is easier to work.

Another peculiarity. frequency of blows. Peorator applies an order of magnitude less force, but an order of magnitude more. Noise from the sound of a drill can be conventionally compared to a mosquito’s loud itching. Another feature is that the little brother works at high RPM, which contributes to a rapid failure of the drill bit and the tool.

GOST 22735-77, developed during the Soviet era, regulates the size of drills with hardfacing in a range:

As for properties of drills, bits and prices: cheap manufacturers are “Stayer”, “Fit”, “Encor. The price of such drills, bits is quite low. For example 6-8mm (the most frequently used) is about 35-50 Socket bit about 300-350 expensive brand-name drills, for example, “Bosch” are a couple of times more expensive. And their service life is noticeably longer. For the home, the cheap versions are completely suitable, because they are used occasionally.

Needed information about tile drilling.

Article about polishing granite and marble, what is needed for it.

Make a hole in a concrete wall with a diameter of 100 mm. can be done in several ways:

The first method is easier and does not require the purchase of additional equipment, but the knocked out chisel hole will have an equal contour. To make the opening even and extend the life of the crown, you can combine both methods. first drilling a hole in diameter and knock out a chisel, and then go through a hollowed hole with a crown.

The best drill bits designed for drilling hard concrete surfaces are considered to be pobedite. Pobedite should be understood as an alloy of cobalt and tungsten, of which the drill bit is made. This material is quite expensive, and today it is unlikely to buy such a drill, as cheaper products, not inferior to it in quality and durability, began to be produced to replace pobedite.

Concrete materials are characterized by strength and hardness. this explains their high operational reliability. But when we want to fix some structure on such surface, we are inevitably faced with the fact that because of the hardness of the concrete it is very difficult to choose a tool for drilling. An ordinary drill bit is not suitable for such purposes, because it blunts quickly, but if you use a special drill bit, you can work with this durable material quickly, and most importantly, qualitatively.

In addition to pobedite, durable concrete drills are also available with diamond coating. Such tool has extra strong characteristics. The diamond drill bit looks like a core drill bit on a rod-shaped base. Pobedite drill bit is similar to its diamond-powdered counterpart, but in shape it is a nozzle, and instead of a diamond coating it has a surfacing at the tip of the working part, which copes with hard concrete.

Description

It is worth noting that the price of pobedite drill bits depends not only on the specified parameters, but also on the manufacturing company. At our site you can find a wide range of accessories. You can buy tools from such trusted brands as Bosch, DeWALT, Metabo, Makita, STAYER and others.

Purchase of drill kits saves time on searching for bits of the required diameter. Set can include from 3 to 220 items. For simple domestic work is quite suitable small set of 5-6 tools. Their greater number is necessary for professional builders. for any case.

Drilling with a drill such hard materials as concrete, brick, granite, requires the use of special equipment, namely. drills for concrete. They are particularly durable and wear-resistant, as well as small in size. Using them, you can quickly get a neat hole.

Description

It is worth noting that the price of pobedite drill bit depends not only on the specified parameters, but also on the firm-manufacturer. Our website offers a wide assortment of the right accessories. You can buy tools from such proven brands as Bosch, DeWALT, Metabo, Makita, STAYER, etc.

The acquisition of drill sets saves time in searching for nozzles of the required diameter. The set may include from 3 to 220 items. For simple domestic works a small set of 5-6 tools is quite suitable. of them are necessary for professional builders. for any occasion.

Drilling with a drill such hard materials as concrete, brick, granite, requires the use of special equipment, namely, drills for concrete. They are especially durable and wear-resistant, as well as small in size. Using them, you can quickly get a neat hole.

Main applications for diamond crowns

Diamond core bits are most commonly used for drilling holes in:

Limestone, porcelain stoneware and granite products and structures;

Photo : drilling a wall with a diamond crown

Let us list the applications that builders most often use diamond bits for.

Punching holes designed for installation of trunking for sockets.

Drilling holes of different depths and diameters for facade work.

Drilling holes in walls for stairway fixtures installation.

Making of engineering and security systems (heating, water supply, ventilation, electrical supply, fire fighting, CCTV, etc.). д.).

Installation of risers, drains, hoses and ducts.

Sampling of pavements, monolithic structures and rocks.

Bits for diamond drilling: varieties, peculiarities of choice

There are three types of diamond drill bits most commonly used.

Matrix

Diamond core drill bits are made up of a housing, shank and matrix, coated with diamond chips. In order to achieve an optimum drilling result and minimise wear on the tool, the hardness of the matrix should be adapted to the material to be cut.

Picture : diamond matrix crown

For processing soft materials (limestone, etc.).) masters take crowns with hard matrixes based on tungsten.

When drilling in medium-hard materials (concrete, etc.) or in soft materials (limestone, etc.).Tools with a cobalt, nickel or iron matrix are used for hard materials.

For hard materials (ceramics, natural granite, porcelain, etc.) diamond core drilling tools are used. д.) they take crowns with soft matrices based on tin or bronze.

Please note! The harder the construction to be cut, the smaller the diamond grain size must be.

Segmented

They are most often used for soft materials (limestone, etc.). Working parts of such diamond crowns have special segments. They are made from diamond powder and metal powder (this mixture is called a binder) using a sintering technique.

Picture : Diamond segment tip

The bonds used to produce the segments are of three kinds.

Medium hardness. Base material: steel, Cobalt or nickel.

Segments made of such bonds are classified in the same way.

Teeth with hard segments are used for drilling construction blocks, limestone and sandstone, with medium-hard segments for reinforced and unreinforced concrete structures, with soft segments for ceramic, quartz and granite.

Teeth of CS: GO standard

Their cutting edges are coated with polycrystalline diamonds. They are applied by a special spraying technique, which considerably increases the life span of the tools.

Photo : CS: GO standard diamond crown

Such teeth are designed for mounting on large industrial drilling equipment.

Diamond drilling machines and their applications

Diamond drilling is a kind of core drilling, during which the destruction of solid rock is not over the entire area, and the ring.

During construction and repair work, there is always the need to drill small holes in masonry or concrete. The pioneer comes to the rescue, and he usually gets the job done, if only at the cost of a few lost drill bits. If we are talking about a hole larger than 10 mm in diameter, then cope with a peorator will be difficult. And practically impossible with holes of tens of centimeters. This kind of drilling belongs to professional activities and is carried out with a diamond drill.

Diamond drilling (or diamond core drilling). is a technological process of obtaining a hole in a solid construction or natural material: concrete, concrete, bricks, artificial and natural stone, asphalt, etc. Diamond core drilling is a variation of core drilling in which the hard rock is broken up not over the entire area, but in a ring. In this case the destroyed material must be removed from the diamond drilling area by means of a flushing fluid, which is pumped into the drill pipe body with a water pump.

During drilling, the drilled core enters and fills the core pipe, so it must be jammed and lifted to the surface.

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Diamond drilling machines. professional construction electric tools, they are used for drilling holes in concrete, reinforced concrete, brick, stone, foam concrete, asphalt and other hard surfaces. Allow to achieve perfectly flat holes with an accuracy of up to one millimeter of the planned diameter. The diameter of the hole is adjusted by the diamond bits used.

Diamond drilling machines are used for laying water pipes, heating, sewage, ventilation systems, reconstruction of buildings and structures, drilling cores in asphalt or hard rock in mines and in faces, etc.д.

Diamond drilling machines do not create strong vibration, dirt and noise during operation, and holes do not require additional processing. Mostly equipped with an electric motor. There are also hydraulic diamond drilling machines that are equipped with hydraulic pumps, the cost of such machines is much higher and work with them requires special training for the diamond drilling operator.

The price of a diamond drill rig depends on the company and country of manufacturer, as well as the technical characteristics.

Diamond drills are used for drilling holes of diameter from 12 to 250 mm with a depth of up to 2 m. Drilling in lightweight concrete, foamed concrete, expanded clay aggregate concrete, different types of bricks is possible. With this manual method it is not recommended to drill holes with a diameter greater than 250 mm, t.к. this can cause the diamond drill bit to jam.

Access to mains power supply required. The diamond drill is often used during repairs in apartment buildings, as well as in fully renovated apartments when installing ventilation, heating or sewage systems.

They are characterized by low noise level, absence of dirt with special dust- and water-collecting devices, easy operation and a wide range of applications for drilling various holes.

Diamond drilling drills can be delivered as a set with drilling legs, this increases stability and accuracy during drilling, and allows to drill at almost any angle.

We offer a wide range of accessories and consumables for diamond drilling equipment and tools. water and vacuum pump, spacer bar, anchor, water collection ring, industrial vacuum cleaner, diamond drill bits, extensions and adapters.

American company Ridgid delivers a diamond drill, model HC-2W. It is a universal drill that is suitable for both dry and wet drilling. It can be used for manual drilling in masonry or concrete, or in reinforced concrete with a special stand.

The correct choice of diamond drilling equipment will allow you to carry out all work quickly, efficiently and safely. Can’t decide? Contact our specialists by phone 7 495 232-90-35, e-mail [email protected] or leave your request online.