Regardless of the project, you have at hand, getting it done rightly matters a lot. Using the right tool for a job helps to reduce fatigue and increase your overall efficiency significantly. When trying to make a core cut, the appropriate means must be selected and used for your project.
In this article, the tips for choosing the right cut core saw for your concrete, masonry, asphalt, etc. jobs will be discussed. We expect that by the end of this read, your knowledge about concrete cutting saws must have increased.
Fig. 1: Concrete cutting operation ongoing.
Table of Contents
1.Size of the job
The need to consider the complexity and volume of the job a hand cannot be over-emphasized. The size in terms of thickness and length of the concrete goes a long way in helping you choose the cut core saw. There are two forms of the concrete cut saw, namely- Handheld saw, and the walk-behind saw.
Just like the name implies, this type of core cut saw is easy to use, simple, and straightforward short-term jobs. Its portability and handiness make it a favourite pick among users. If you are working indoors, then this is just what you need. With the hand-held core cut saw, you can work flexibly. Without compromising accuracy, this concrete cutting saw works like magic on your concrete slabs or asphalt walkways. Whenever you have small and shallow cutting jobs, this easily fits into the job and delivers reasonably well. Bear in mind that with this saw, you can carry out cutting any convenient position/posture.
Again, this another amazing concrete saw deployed majorly for outdoor and large jobs. Its design is such that it gives the total user control over it when in use. It’s not as portable as the Handheld as such an ergonomic handle is attached. It looks exactly like a typical lawnmower except that the blade is strapped on the side and not underneath. For long and continuous hours of usage, the walk-behind saw comes to mind. Whether for dry cutting or wet-cutting concrete, it’s always good to go. However, you should purchase this if you have a large project, especially medium to high-range civil works.
Fig. 2: Man operating wet-cutting concrete using a hand-held saw.
2.Choose the right type of blade
By default, Diamond blades suit concrete and asphalt cutting. Manufacturers have engineered them to penetrate very hard materials without breaking. However, it is not enough to use a diamond blade for your cut core saw. It is far more important to use that with the correct configurations and characteristics. These characteristics cut across the following:
- Wet-cut or Dry-cut
Wet Diamond blades have come to stay in the world of cutting. They are known for their ability to withstand constant spray of water on them during cutting. This singular act averts a lot of impending calamity and hazards that could occur to you or your workpiece.
Minimal heat and dust are generated, thereby reducing excessive friction and wear of diamond crystals around the part. They remain the fastest and most accurate saw blade for concrete and asphalt cutting.
On the other hand, Dry diamond blades are characterized by lesser tooth per inch to enable effective cooling. When employed for deep cuts, it has to follow in successive steps of shallow cuts.
Tooth per inch
Wet diamond blades have higher teeth per inch since they are water or lubricant cooled. While the Dry diamond blade has a more serrated tooth arrangement with lesser tooth per inch, this feature helps the dry diamond blade to cool and eject chips and dust easily.
One cannot be too careful about matching the speed of bade to that of the core cut saw. Whether you want to use a hand-held or walk-behind saw, make sure your blade speed is greater than the concrete saw’s maximum speed. It helps to avoid an accident due to over-speeding and imminent breakage of the blade.
Generally, thicker core materials require larger blades, and higher tooth per inch blades gives a cleaner and more accurate cut.
Fig. 3: Dry-cutting operation using the hand-held concrete cutting saw.
3.Ensure the saw meets all power requirement
Based on the material in question, i.e., concrete or asphalt, the saw chosen must be powerful enough for this purpose. A check and balance of the speed, type of drive to the nature of material must also come into play. As of today, powering a core cut saws has evolved rapidly through various innovative methods. Some power saws are- driven by an Internal combustion engine, electric motors, or use of rechargeable batteries. Rechargeable battery saws hardly produce enough power required by a diamond blade to cut concrete or asphalt. Hence, the reason for their rareness in this regard. Although, advancement in technology has seen the adoption of the rechargeable saw for heavy cutting jobs. You would just have to select one with high battery capacity and probably carry a spare too.
However, for core cut saws, the best power source is the internal combustion engine or electric motor approach. For ICEs, a gasoline engine is mounted on the saw to deliver the torque and power to the blade. Here, the output of the engine determines the input to the blade and automatically to the workpiece. For electric motors, they derive their input from the electric mains supply to produce rotational energy and torque for the blade.
Generally, the engine-powered saw is the best bet for outdoor use, either for dry-cutting or wet-cutting, it is your best choice. It is known for its high durability embedded in its rugged design. On the other hand, electric-powered saws are best for confined and indoor space. It is because it does not produce fumes or poses a risk of fire outbreak. It is also best suited for dry-cutting operations. Furthermore, the absence of an engine drastically reduces the amount of noise produced.
In the two cases above, special power transmitters come into play. Gears, chains, or belts come into play for transmitting the energy produced by the ICE or electric motor to the blade arbour.
Above all, endeavour to decide which best suits your cutting need before making your purchase.
Fig. 4: A brand new walk-behind saw showing the internal combustion engine.
4.Consider your budget
Often, this factor is always a limiting one for intending buyers of core cut saws. Considering the above-listed basic requirements, you need to decide based on your purchasing power. It is best that you “cut your coat according to your size.” Buy the best saw your money can get you, which should also meet at least 70% of your basic need. While trying to stick to your budget, you should not compromise other factors that would help you land a great saw. You should aim to strike a balance between your budget and ultimate goal for purchasing the saw.
The right saw makes it easy to cut. In turn, the ease of cutting helps you achieve the best cut. You could also consider rentals if you are not a contractor or regular user of the core cut saw.
Fig. 5: Set of concrete cutting saw.
5.Choose quality over quantity.
Just like in every other walk of life, quality is far more paramount than quantity. When selecting your concrete cutting saw, pay attention to the ingenuity in design. It is in your best interest that you do not only focus on the price of the saw but also the value derivable. Emphasis should always remain on prudency when preparing to purchase a core cut saw. Go for brands of both saw and blades with a track record of durability and ease of use before considering the price. As a first-timer, you can consult friends for assistance and advice.
Once you take the pain to purchase a quality saw, be rest assured you stand to gain high utility. When carrying out your research, go for brands and companies with registered trademarks and track record of excellence in this regard. In short, never settle for less, with NCCuttingtools, you can get 100% value back for your money spent.
Fig. 6: Set of Diamond blades.
Finally, be rest assured that once you religiously follow the tips explicitly discussed in this article, you are good to go. At NCCuttingtools, our core value centres around providing cutting edge technologies across cutting tools and related equipment. If peradventure, you desire to gain more useful tips and knowledge in this domain, consult this video here.