Diamond grinding tools: features and applications

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Is the concrete floor far from perfect? And it needs to be polished quickly and efficiently ?! There is a solution – use diamond grinders and your floors will shine like a mirror!

With the growth of construction work and industrial buildings, the question of effective and high-quality processing of concrete pavements, an integral part of which is the laying of a flat concrete floor, is increasingly being asked. The reliability and service life of the building as a whole depends on how competently and efficiently the concrete pavement is leveled. That is why, more and more often, the process of finishing and delivery of concrete floors in accordance with the standards (max unevenness is 4 mm at a 2-meter length) is assigned to roughing and grinding the floor with a diamond grinding tool capable of processing large areas with a minimum of time and power costs.

The history of the use of diamond grinding tools for industrial purposes begins in the 90s of the 20th century, when for the first time domestic production of mosaic grinding machines of the CO and GM type, the main elements of which are diamond grinding mills, began to be produced.

So, diamond grinding cutters are a diamond tool consisting of a metal body with diamond segments soldered onto it, used for roughing and grinding concrete, stone, slabs. Due to the use of diamonds of various configurations and sizes in the segments, the efficiency and productivity of work with diamond grinding mills increases tenfold, and the resource and speed are incomparable with conventional abrasives.

As is the case with any other diamond tool for the construction industry, there are no specific standards and technologies for manufacturing diamond grinding mills. Each large production organization, such as the Adel Group of Companies, develops its own formula for the diamond segment for grinding mills, taking into account the specifics of the surface to be processed and the work performed in general.

The nomenclature of diamond grinding mills is quite diverse. Thus, the specialists of the Adel Group of Companies, which has been producing diamond tools for over 17 years, offer the following classification of diamond grinding tools:

1. Diamond Grinding Bits for CO and GM Mosaic Grinding Machines. Such diamond cutters are designed for processing and grinding industrial floors on mosaic grinders. Cutters for this equipment are usually completed with 6 pieces (sometimes 3 pieces) and are subdivided into several subspecies depending on the shape and type of the machine:

• Diamond cutters (rings). They are diamond grinding cutters of a round shape, intended for a complete set of mosaic grinding machines of the SO-199 type. Diamond rings are operated using coolant for grinding medium-abrasive and abrasive materials of class B and C: concrete, hard refractories, paving slabs, marble, granite. Such diamond cutters can be mounted either with triangular adapters or directly to the crosshead after minor modifications.
• Diamond cutters (triangles). They are cast diamond grinding cutters of a round shape with a triangular adapter fused together with the body. These cutters are intended for a complete set of mosaic grinding machines of the CO type. Grinding triangles of this series are operated with the use of coolant for grinding medium-abrasive and abrasive class B and C materials: concrete, hard refractories, paving slabs, marble, granite.
• Diamond cutters (frankfurt).They are trapezoidal diamond grinding cutters designed for grinding building materials with GM mosaic grinding machines using coolant. Frankfurt is used for grinding medium-abrasive and abrasive materials of class B and C: concrete, hard refractories, paving slabs, marble, granite.

2. Diamond grinders for angle grinders cut-off machines (grinders). Diamond grinding mills of this category are used to perform local roughing and grinding work on angle grinders, are completed by 1 piece, have different diameters..

• Segment double row diamond grinding cutters.They are diamond grinding cutters of a dish-shaped design, on the end surface of which diamond segments are soldered in a certain order in two rows. Cutters are made in accordance with the size of the used diamond grain and are recommended for operation without cooling.
• Sintered Diamond Grinding Bits. They are round diamond cutters with a sintered annular diamond layer. Cutters are designed for processing natural stone, leveling surfaces, processing end faces, chamfering with manual angle grinders, both using cooling and using dry processing.

  Now, almost no large construction project is rented out without preliminary processing of the floors with a diamond grinding tool. The popularity and efficiency of the use of diamond grinding cutters is constantly growing.

The advantages of diamond grinding tools are obvious:

• Diamond grinding cutters are very tough and durable, which enables a wide range of material grinding with the required precision.
• The speed and resource of floor processing with diamond grinding mills is tens of times higher than the productivity of work with conventional abrasives.
• Roughing and sanding floors without noise, dust and vibration.

Nowadays, diamond grinding technologies are used everywhere – construction, reconstruction of industrial and civil buildings, bridge and road construction – these are just a small part of the areas where diamond grinding tools are used. Such an effective technology for the processing of industrial floors has led to the fact that more and more manufacturers of diamond tools are expanding their range of tools, and are introducing their own diamond grinding cutters to the market..

On the territory of Russia today there are about 20 suppliers of diamond grinding mills, but only about 5 companies are manufacturers. This situation is due to the fact that not all suppliers are manufacturers. The group of companies “Adel”, the largest manufacturer of diamond tools in Russia, distinguishes 2 categories of companies supplying diamond grinding mills:

• Zero-cycle diamond grinding tool manufacturers.
  They are engaged in the complex production of diamond grinding cutters, from the development and manufacture of cutter segments, ending with the production of metal bodies and soldering of segments to them. There are only no more than 5 similar organizations in Russia and they are fully responsible for the quality and technological features of the use of mills in industry.
• “Assemblers” of diamond grinding tools.
  Such organizations are only partially involved in the production of diamond cutters, i.e. as a rule, they buy components, diamond segments and cases, and combine them into a finished product. The main difference between “assembly companies” is that they do not produce segments themselves, and therefore cannot fully vouch for the quality of the finished product at the output.

In the modern construction industry, the use of diamond grinding technologies is an advanced method for processing concrete and stone coatings, providing high productivity, guaranteed reliability and safety of the work performed.

Article prepared ADEL Moscow (LLC “Karat Service”),

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