Diamond discs for concrete: features, types, selection criteria

Diamond discs for concrete — these are special cutting tools that are used to cut concrete, reinforced concrete and other hard materials. The main cutting element of such discs is a diamond coating that allows you to effectively and quickly cope with hard surfaces.

Main characteristics of diamond discs for concrete:

• diamond coating: The discs are coated with synthetic diamonds, which are much harder than concrete and can effectively cut it. The diamonds are fixed to a metal base, usually steel, using various technologies such as laser welding or sintering.
• segment types: Discs can be solid or have a segmented edge. Segmented discs provide better cooling and dust removal during cutting.
• appointment: diamond disks are used in construction, dismantling structures, laying communications and other work related to cutting hard materials. They are suitable for both dry and wet cutting.
• dimensions and mounting holes: Discs come in a variety of diameters and bore sizes to accommodate different types of cutting equipment such as angle grinders, cutters and gas cutters.
• application: Diamond concrete blades are used to cut various types of concrete including reinforced concrete, asphalt, brick and stone.

The use of diamond blades requires safety precautions, as working with such hard and durable materials can be dangerous. It is necessary to use protective glasses, gloves and, if necessary, respirators to protect against dust.

Diamond discs — types

Diamond discs for concrete come in different types, which allows you to choose the best tool depending on specific tasks and working conditions. Here are the main types of diamond discs:

Segmented diamond discs:

• description: have separate segments along the edge of the disk.
• advantages: provide better cooling and dust removal, allowing them to be used for dry cutting.
• application: suitable for cutting concrete, brick, stone and other hard materials.

Turbocharged diamond discs:

• description: have a continuous edge with wave-shaped notches.
• advantages: Provides smoother cutting and better cooling than segmented discs.
• application: Ideal for cutting hard materials including concrete and stone, while providing a cleaner cut.

Continuous Edge Discs:

• description: have a solid edge without segments.
• advantages: Provides clean and precise cutting but requires water cooling to avoid overheating.
• application: Often used for cutting ceramic tiles, marble, granite and other materials that require a neat cut.

Combined diamond discs:

• description: combine the properties of segmented and turbocharged discs.
• advantages: provide both good cooling and a quality cut.
• application: universal, can be used for various types of cutting.

In addition, there are specialized discs for different types of concrete (reinforced, old, new) and different operating conditions (for example, for working with high loads or high cutting speeds).

When choosing a diamond blade, it is important to consider parameters such as the blade diameter, mounting hole, type of cut (dry or wet) and specific requirements for the material to be cut.

The choice of diamond blades for cutting concrete depends on many factors, including the type of material, working conditions and the required productivity. Here are the main criteria to consider when choosing:

Cutting type

• Dry cutting: Suitable for fast cutting without using water. Requires discs with good cooling, such as segmented or turbo discs.
• Wet cutting: used to minimize dust and heat buildup on the blade. Provides longer blade life and cleaner cuts. Continuous edge blades and some segmented blades can be used for wet cutting.

Material for cutting

• Concrete: For normal concrete, universal segmented discs can be used.
• Reinforced concrete: requires blades with high wear resistance and metal cutting ability, such as blades with reinforced diamond segments.
• Asphalt: Requires soft bond diamond discs as asphalt is a more abrasive material.
• brick and stone: turbocharged or segmented discs can be used.

Disc diameter and mounting hole

• disc diameter: selected depending on the type and model of equipment used (angle grinder, gas cutter, etc.). Diameters vary from small (115 mm, 125 mm) to large (350 mm and more).
• Mounting hole: must match the spindle of the tool. Standard sizes include 22.23 mm (for angle grinders), 25.4 mm and others.

Quality and performance

• Professional discs: designed for intensive use, have higher performance and service life, but also a higher price.
• Consumer discs: more affordable, suitable for occasional use and less intensive tasks.

Type of segments and diamond coating

• Segment height: determines the durability of the disc. The higher the segments, the longer the disc will last.
• Diamond bond: discs with different bond hardness are suitable for different materials. Soft bond is better for abrasive materials (asphalt), and hard bond is better for hard materials (reinforced concrete).

Additional factors

• Cutting speed: Some blades are designed for high-speed cutting, which can be important for high-volume work.
• Manufacturer and reviews: Reliable manufacturers such as Bosch, DeWalt, Makita, Hilti often guarantee the high quality of their products. User reviews can help you make a choice.

Recommendations for selection:

• for general-purpose tasks: segmented discs of medium diameter.
• for precise and clean cutting: continuous edge discs for wet cutting.
• for abrasive materials: discs with soft bond and high segments.
• for high intensity work: professional turbocharged or segmented discs with reinforced diamond segments.

The correct selection of a diamond blade will ensure efficient and safe operation and will extend the life of both the blade and the equipment used.