Concrete Saw / Cutter Rental in Bangkok: Complete Guide to Sizes, Blades, Pricing and Safe Cutting

A concrete saw uses a high-speed rotating blade to cut through concrete, asphalt, road surfaces, or slabs, making a straighter, deeper cut than an ordinary grinder. Common uses are cutting roads to open a trench for pipe, cutting concrete joints, cutting slabs to remove them in sections, and repair work needing a clean cut edge.

AR offers two concrete saws. Both are walk-behind machines with wheels that cut floors horizontally: the large concrete saw and the small concrete saw. The main difference is blade size, which sets how deep you can cut, rather than how the machine is used.

The large saw takes a blade of about 24-36 inches and weighs about 90-120 kg, so it presses deeper and runs long, straight lines, which suits cutting roads or thick concrete slabs. The small saw takes a 14-16 inch blade and cuts shallower in proportion, but the machine is smaller and easier to move into confined areas. As a rough rule, usable cutting depth is around a third of the blade diameter, so tell the team the slab thickness and they can match the model.

The basic rule: choose the large model for long, deep floor cuts, and the small model for spot cuts, edge cuts, or tight areas. If unsure, see both models on the tools and pricing page, or call and describe the job so the team can advise.

The large walk-behind concrete saw is designed to cut floors horizontally, with wheels to support it and machine weight to press the blade for a consistent deep cut. It suits cutting roads, factory floors, control joints to manage cracking, or opening long trenches for pipe. Cutting depth depends on the blade size used.

The small concrete saw is also walk-behind, but its smaller blade cuts shallower. It suits opening pipe trenches, cutting thinner slabs, cutting control joints, or working in areas too confined for the larger machine. The trade-off is that it cannot cut very thick slab, in exchange for easier handling and a lower rate.

If the job is cutting floors in long lines or large volume, the large model is faster and straighter. But if the job is small cuts scattered in several places, or in a tight area, the small model is easier to handle and far easier to move. Some jobs use both the large saw for the main lines and the small one for corners.

Once you have picked the model, consider the blade alongside it, because the blade type and whether it is included affect both price and result covered in the next section.

The cutting blade is a consumable that wears with the work, especially the diamond blade used to cut concrete and hard surfaces, which is costly and wears faster on harder or reinforced material. For this reason AR prices two ways: blade-included and blade-excluded, to suit customers who already have a blade and those who want one ready to use.

Blade-included suits customers with no blade of their own, or who do not want to spend time finding one that fits the machine; the rate is higher because it covers the blade wear during the job. Blade-excluded suits customers who already have a blade or want to choose a specialised one themselves; the rate is lower because it is the machine only.

Matching the blade to the material matters greatly for both speed and safety. A blade for cutting concrete is not the same as one for cutting steel or asphalt. Using the wrong blade cuts slowly, wears the blade fast, and risks the blade shattering in use. If unsure what material you will cut, tell the team so they can help choose the blade or recommend the blade-included option.

Depth also matters. A larger blade cuts deeper but must be used on a machine that accepts it. Telling the team the thickness to cut when booking helps them supply a machine and blade that finish in one pass, so you do not have to cut again because the blade was too small.

Rates referenced from the AR Rental Tools website at publication, split by model and whether the blade is included. The large model with blade is 5,000 THB per day or 30,000 THB per week, and without blade is 3,000 THB per day or 18,000 THB per week. The difference is the cost of the blade that wears during the job.

The small model is more affordable: with blade it is 3,000 THB per day or 18,000 THB per week, and without blade it is 1,000 THB per day or 6,000 THB per week. None of these include site delivery if any, so always call to confirm the net price before starting.

Here is a simple example. Cutting to open a pipe trench with the small model, blade-excluded, over 2 days where the customer already has a blade, at the daily rate of 1,000 THB works out to about 1,000 × 2 = 2,000 THB before any delivery cost. If you have no blade, choose the blade-included option instead for convenience.

Because price varies by model and blade, telling the team clearly whether you already have a blade and how deep you need to cut helps you get the best value. See rates for every model and compare with other tools on the tools and pricing page.

A concrete saw demands high caution, because the blade spins fast and there is a kickback risk. The operator should always wear safety glasses or a face shield, ear plugs, a dust mask, gloves, and safety boots. Dust from dry concrete cutting contains lung-harmful silica; wet cutting reduces dust and cools the blade at the same time.

To reduce kickback, feed the blade into the material steadily, do not twist or tilt the blade while cutting, do not force it in too fast, and hold the machine firmly with both hands. Stand out of line with the blade in case it kicks, and let the blade reach full speed before starting the cut.

For a straight cut, mark the line first, then cut shallow along it as a guide groove, and gradually deepen a little at a time to the required depth. Trying to cut deep in one go makes the blade work hard, risking it binding and the machine kicking. Cordon off the surroundings and keep people out of the line where debris or the blade could reach.

Before cutting, check that the area has no electrical cable, water pipe, or gas line embedded in the cut line, and inspect the blade for cracks or chips before use. Switch off and wait for the blade to stop fully before setting the machine down or changing the blade, and never remove the blade guard for convenience it is a key protection if the blade breaks.

AR Rental Tools has branches in Bang Kho Laem and Bang Khen. You can pick up at the branch or have it delivered to the site across Bangkok and nearby provinces. For the heavy large model in particular, delivery is often more convenient; delivery cost and truck slot depend on distance and machine size.

Booking takes only a few steps. Call 089-690-9876 or message LINE @ar.tools, say whether you want the large or small model and blade-included or not, describe the job and the thickness to cut, and give your start and return dates. The team then confirms the price, delivery cost, and truck slot.

On collection, check the machine, the blade guard, and the blade (if renting blade-included) for cracks or chips, and try starting it before signing. If there is a problem, tell the team immediately so it can be swapped before you begin no time lost on site.

For urgent same-day jobs, calling the team directly is faster than a long message, and if you give the project name or the district of the site, the team can dispatch a truck from the nearest branch to arrive on time.

The first common mistake is using the wrong blade for the material, such as a concrete blade on steel, which cuts slowly, wears the blade fast, and risks it shattering. Avoid it by telling the team what you will cut so they choose the right blade or a suitable blade-included option.

Another is trying to cut deep in one go, which makes the blade work hard, the machine kick, and the cut line wander. Cut a shallow guide groove first, then deepen a little at a time for a straighter, safer cut.

A pricing mistake is choosing blade-included when you already have a blade, or blade-excluded when you have none and must go buy one mid-job. Checking beforehand whether you have a blade that fits the machine and material helps you pick the best-value option from the start.

In short: match the model to the job, choose blade-included or excluded based on what you have, cut a little at a time for a straight line, and wear full protection every time. See details and rates on the tools page or start from the home page to view other categories, then call to confirm the price and slot before the start date.