How To Use Diamond Blades In Dry Cutting

Typically, using a diamond blade with adequate water (wet cutting) will prolong blade life and control dust. However, in some cases dry cutting should or must be done. These situations include:

  • For some power tools, water is not safe due to the power source.
  • The work area needs to be kept dry.
  • There is no water source near the work area.


Here Are Some Tips For Using A Diamond Blade Effectively:

1. Choose The Right Dry Diamond Blade

If dry cutting is required, you should first select a suitable diamond asphalt cutting blade for dry use. Dry-use diamond blades are generally different from wet-use diamond blades. For sintered diamond inserts, continuous rim diamond are generally only used for wet cutting. Most other sintered diamond inserts can be used dry. For welded diamond blades, silver brazed diamond blades cannot be used for dry cutting, while dry laser welded diamond blades can. Dry laser welded diamond blades are designed differently than laser welded diamond blades for wet use only.

Dry diamond blades can usually be used wet. However, if a wet diamond blade is used with insufficient water or even dryness, the diamond blade may overheat and become damaged, and worse, parts on the blade may break and fly out, potentially injuring the operator or those nearby.


So, tell your diamond blade supplier that you need dry cutting and let him/her choose the right dry diamond blade for you.

2. Correct Operation Of Dry Diamond Blades

After obtaining the correct diamond cutting disc angle grinder for dry use, if the operator fails to do it properly, the excess heat generated during dry cutting can still damage the diamond blade and the operation can be very dangerous.

Unlike wet cutting, which uses water as a coolant, dry cutting uses air to cool the diamond blade. During dry cutting, the operator should make intermittent and shallow cuts to allow air to flow around the diamond insert.


Intermittent Cutting:

Operators should not cut dry continuously for long periods of time. Instead, after a period of dry cutting, he should remove the pressure on the diamond wire blade and let the blade run free and run at full speed, keeping the air cool. The duration of each dry cutting operation can range from a few minutes to a few seconds, depending on the hardness of the material being cut. The harder the material, the more often the diamond blade cools.

Shallow Cuts:

The operator should also make shallow cuts to avoid overheating of the diamond inserts. When a deep cut is required, he can do it with several shallow cuts (step cuts).


Additionally, Here Are Some Tips For Selecting Diamond Grinding Wheel.

Diamond cup wheels cutter heads own diverse matrix, diverse particle size and diverse diamond concentration; turbo cup wheel matrix can be divided into hard, medium, soft, etc.; particle size is divided into coarse, medium, fine, etc.; so their quality and use are different.

When we select a diamond grinding wheel, we can select the appropriate diamond wheel according to our own use; for instant, when we are grinding hard ground, we should choose a soft carcass 7 diamond cup wheel; if it is a relatively soft ground, we can choose a relatively Hard carcass diamond cup wheel. For ground grinding with different roughness, we should also choose a more appropriate particle size. Usually, for rough grinding, we should choose a softer carcass and a high-quality diamond cup grinding wheel, and the particle size can choose a large particle size. For example, 16inch, 20inch or 30/40inch cup diamond grinding wheels are used for grinding. Choosing such a suitable turbo diamond cup wheel can increase the work efficiency; for fine grinding, we can also call it polishing. We can choose a 7 inch concrete grinding wheel with a hard carcass and fine particles. Such as 80inch -120inch, other finer particle sizes diamond turbo cup wheel can also be selected according to the needs of grinding.



For more info, if you’re having issues with wobble when dry cutting with a high powered diamond hand saw, try wet cutting. This cools the diamond wire saw blade and solves the problem. Not all materials can be cut dry. Very hard materials, such as concrete with strong reinforcement, should still be cut with sufficient cooling water. For concrete saws, wet cutting is best because it allows continuous and deeper cuts, reduces dust, and can extend the life of the diamond blade.


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