Sometimes, there is confusion about how to select a concrete cutting machine?. Equally important, understanding the accomplishments and limitations of core cutting and concrete cutting machines and diamond chainsaws will help you determine which tool is better for you to use.
Cutt-off Machines & Diamond Chainsaws
Cut-off machines and diamond chainsaws are both the most common concrete cutting tools, and their uses overlap moderately. However, they are not replaceable. While understanding the expected difference between these two types of equipment, you can genuinely make the right choice for your next job.
The Industry Standard For Concrete Cutting Jobs
The assigned choice for the most concrete cutting jobs, cut-off machines as hand-held saws used for cutting concrete, metal and asphalt. They use a diamond blade or a composite resin abrasive wheel to cut in several construction applications, usually available 12 or 14 inches in size.
Following power sources are generally used for cut-off machines:
- Two-stroke gas engine
- Electric motor
- Hydraulic power unit
- Air compressor
Concrete Cutting Machines
Electric Saws
Generally, the choice of power source depends on the application. Electric saws are sometimes favorite machines because they are lightweight, less noisy and easy to use comparatively. They are not more powerful and can take more time to complete a job. An electric saw is usually preferred in surrounding environments.
Hydraulic Saws
Hydraulic saws have the most significant power to weight ratio. These type of machines are advantageous because most of the contractors have a hydraulic power unit on hand. But, they are more expensive than a pneumatic saw. They can apply more pressure in the hydraulic line which can cause difficulty while handling.
Pneumatic Saws – A Convenient Concrete Cutting Machine
Pneumatic saws are convenient concrete cutting machines usually powered by air compressors on job sites. Its operation is simple and risk-free regarding fluid leaks. Pneumatic saws are lightweight comparatively and easy to maintain as well. Pneumatic saws are tough enough for everyday concrete cutting jobs even in a harsh environment. This machine can cut openings, corners, plunge cuts up to 20-inches deep and 15-inches square, and many other jobs not possible with circular type saws. Pneumatic saws are more expensive due to compressor usage and fuel consumption to power it.
Weight Versus Performance
Besides each cut-off machine has its power and maintenance requirement, there is also a discussion regarding weight versus performance. Lightweight saws are usually operators’ favourite choices because they are easier to use. But you will need a heavier saw for deep cutting which can be not easy to handle for some operators.
Gas-Powered Saw – A Popular Concrete Cutting Machine
Gas-powered units are also popular among cut-off machines. These types of machines are portable and easy to handle. Gas-powered units require maintenance and power as well. Weight versus performance is again a question here and operators usually appreciate lightweight machines saw. But on the other hand, the heavier saw can cut the shallow deeper and faster than the lighter one. So, it depends on the job and operator’s requirement. There are some gas saws capable of cutting up to 16-inch depth.
Diamond Chainsaws
A sprocket-driven diamond chainsaw is a tool similar to a wood-cutting chainsaw with a guide bar, chain and a powerhead. Its diamond segments are laser welded to the chain. Diamond blades can make very smooth and safe concrete cutting. Diamond chainsaws are better than circular-blade sometimes due to better cutting ability up to 14-inch. Hydraulic diamond chainsaws can make a cut from 4-inches to 25-inch depth with no overcuts. These machines can also make Odd-shaped cuts. The operator can make square corners which are not possible with a circular blade.
Silica Dust Control
Adopting dust control methods during the concrete cutting process is always the best approach. Keeping in view the cleanliness, healthy environment and safety standards, you will need to control respirable crystalline silica during the cutting job. Usually, wet cutting is recommended to control the dust. Water and ventilation can help to limit silica dust. Respirators can also be used as safety precautions.