Cutting discs are expandable tools used on angle grinders or stationary devices for cutting a variety of materials from metal alloys (steel, stainless steel. aluminium), to wood, stone, concrete and other materials. They are basically divided into classical cutting discs using a synthetic resin as a binder and diamond discs. They were invented because sometimes it was impossible to cut particular material, or the procedure was too demanding regarding time or costs.

Diamont cutting discs

The production technology using diamonds, and the way of using discs makes them much more expensive than classic cutting discs. The discs have cutting edge covered with a thin layer of diamonds grains. Diamond cutting discs were mainly used for cutting stone, concrete, reinforced concrete and asphalt, but with the development of technology they price became more available, so they are used also for cutting ceramic, steel, stainless steel, plastics etc.

The thickness of discs has a crucial impact on speed and quality of cutting, In theory, you can also cut some material with grinding disc. The only question is how much power, time and material will you spend. (in the ideal case where angle grinder will not bounce or move to the or to the right during cutting)

The thinner the disc is, the cutting is quicker and more accurate, less material is being used, sparking is less and lower temperatures are developed. The thickness of 3mm was the standard of years. It was thick enough to withstand safety requirements, but also thin enough for reasonable cutting. Since the standard grinding discs where manufactured in thickness from 6 to 12mm, the thickness of 3mm for cutting disc proved to be ideal former production capabilities. As the technology of abrasives progressed, innovation began, so the thickness of cutting discs decreased to 2.5mm, 1.9,mm, 1.5mm, 1mm and 0.8mm. Today all cutting discs produced by leading European and world manufacturers are safe for use in any thickness, and there is no reason for the mistrust that still exists towards thin cutting discs. wo protective safety nets prescribed by European and world standards.

The advantage of thin cutting discs 1mm compared to the classic 3mm discs:

Wearing of less material, cut thickness from 1.05 to 1.3mm versus 3.15 to 3.5mm, less vibration, less heating of material, less sparks, faster cutting, less odor, easier to control cutting, the worker does not need a lot of strength.

The advantage of the classic cutting discs 3mm versus 1mm:

Slightly longer life time, habits.

All cutting discs have their durability, so each manufacturer is obliged to print year when validity ends, clearly and indelibly on the cutting disc. It can vary from up to the maximum of 3 years. It is not recommended to use the discs after the expire date. The cutting discs are spinning at the speed of 80m/s At this speed, each chip cab cause serious life threatening injuries. Therefore, when working with cutting discs always should particularly pay attention to handling them. before use a disc should be inspected visually for any cracks or chips.


Classic cutting discs with synthetic resin 

In metal industry, cutting discs which are mostly used are the classic ones with synthetic resin as a binder. They are divided according to their purpose, so we distinguish between discs or cutting steel, stainless steel, aluminium, and stone.

The cutting discs consist mainly of the following components:

• Steel ring: which enables firm and safe installing to the machine

• Label: Contains all the important information related to the cutting disc

• Safety net: Fibreglass net which prevent cracking of the disc

• Cutting mixture: a mixture of corundum, binder and other materials.

• safety net: two safety nets is the standard for safety today.

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