What is the TCT?
TCT stands for Tungsten Carbide Tips, a chemical compound that becomes incredibly hard, more than double the hardness of steel, when subjected to temperatures of 1370-1440℃ and pressure during sintering. These carbide tools possess exceptional durability, maintaining sharpness for extended periods, delivering superior finishes, and exhibiting outstanding resistance to high temperatures. The saw blades, thanks to their teeth and the incorporation of tungsten carbide tips, effortlessly slice through various materials, guaranteeing prolonged blade life. To optimize cutting performance, different grades of TCT are employed for different cutting materials.
List of carbide tip grades for TCT saw blades:
K 01 | K 10 | K 20 | K 30 |
Hardness [HV 30] | Hardness [HV 30] | Hardness [HV 30] | Hardness [HV 30] |
1900 - 2200 | 1700 - 1800 | 1600 - 1700 | 1300 - 1400 |
The K01 grade is highly resistant to abrasion, making it an excellent choice for cutting hard materials such as MDF, chipboard, HDF, and double sidelaminated chipboard. Its powdered micro grain is exceptionally fine, ensuring precision in cutting. Whether you're working with tough materials or demanding projects, the K01 grade provides the durability and reliability you need. | Here are some tips for achieving the perfect balance between fine-grained structure and material hardness for universal usage, especially for cutting wood, plastics, non-ferrous metals, plywood, plaster boards, and more. By rearranging the information provided, I will generate highly similar content while maintaining the essence of the original text. | When it comes to cutting along the grain of natural woods, using tips that have a higher percentage of cobalt binding material is crucial. This is because the cobalt binding material enhances the tooth tenacity of the tips, resulting in improved resistance when coming into contact with materials like branch knots, dirt, and steel chips. By incorporating these tips into your cutting tools, you can ensure better performance and durability, making it easier to tackle various types of materials. | K30 tips, known for their high tenacity and resistance against breaking, are made from a cobalt binding material with a high percentage. This material has a lower hardness, which greatly contributes to the exceptional performance of the tips. Specifically designed for cutting in extreme conditions such as frozen wood, this grade is the perfect choice. |
How to choose a right TCT saw blade?
When selecting a circular saw blade, the vast array of options can be overwhelming even for experienced operators. With so many blade types available, including those with varying numbers of teeth, widths, hook angles, and rim styles, it can be challenging to determine which blade is the best choice for a particular job. However, by taking some time to review the available options and their features, it's possible to select a blade that meets your needs. Some blades are designed for specific materials, while others serve as all-purpose options. It's essential to consider the intended use of the blade to make an informed decision. By examining the different factors that make each blade unique, you can select the right tool for the job.
TCT Saw Blade Essentials:
◎ Diameter and Bore
◎ Number of Teeth
◎ Kerf Width
◎ Tooth Type and Design
◎ Cutting Material
◎Diameter and Bore of TCT Saw Blade
The diameter of the blade must not exceed the maximum size accepted by your circular saw or cutting machine; this information will be set out in the product specifications. Buying a blade that is slightly smaller is not dangerous but it will reduce cutting depth. If you're not sure, refer to the manufacturer's instructions or check the size of the blade currently on your saw.
Circular saw blades are toothed metal discs featuring a hole in the centre called a bore. This hole is used to secure the blade to the saw. The bore size should match the size of your saw. If you select a blade with a larger bore and use a reducer ring or bush to attach it to the saw, The gap between the blade and the shaft will be somewhat larger, the vibration of saw blade will increase, and the cutting quality and cutting life span will be decreased.
◎ Number of Teeth on a TCT saw blade
The principle of tooth number selection:
★ The thinner the material to be cut, the more teeth needed.
★ Cutting along the fiber requires fewer teeth. Crosscut requires more teeth.
The number of teeth affects both cut speed and how clean the cut is. The space between each tooth is called the gullet. Gullet size affects a blade’s ability to “clean out” debris. Since the size of gullet is mainly determined by the outer diameter and the number of teeth of the TCT saw blade, it will not be more explained here.
When choosing the specifications of TCT saw blade, no matter it’s used for cutting wooden material, aluminum, steel or acrylic, the number of teeth is very important. If the teeth is too less, the cutting is unstable and the cutting surface is poor; But if there are too many teeth with the the saw blade, cutting resistance and heat occurred quickly, which will cause the blade swing instability and short cutting life.
As a rule of the thumb, in case of a TCT saw blade, there should be not more or less than 2-4 teeth at the same time in the material. We can calculate the teeth number needed with the following formula.
K=(1.45h×Z) / (D×π )
K=Number of teeth in cut
H=Thickness of the material
Z=number of teeth
D=Outer diameter of saw blade
π=Pi (3.1415926)
◎ Sawblade: Kerf Width
Thinner kerfs cut faster (more efficiently) but may introduce blade wobble.
However, technological advances in blade design and production process have generated thin-kerf blades that rival the best industrial-quality full-kerf TCT saw blades. Vibration-dampening design or special tension treatment compensate for the slight loss of stability and make thin-kerf blades the optimum choice for lower-powered saws and conservation of materials.
◎ TCT circular saw blades: Tooth Type and Design
The number of teeth isn't everything and the shape of the teeth themselves can vary depending on the type of cutting task they are designed to handle.
ATB / BC – Alternate Top Bevel
These teeth feature a bevel design that alternates between right-hand and left-hand top bevels. A common design suited to a range of applications. The TCT saw blades with ATB teeth are best for crosscuts but can also handle light rip cuts. They will work on most natural woods and are also able to get through tougher composite materials like plywood.
ATAF / BC – Alternate Top Alternate Face
The ATAF does not have a final raker tooth. The ATAF grinds the top at an angle, and also the face at an angle. When these 2 grinds combine, you get a sharper cut that gets you a more pointed edge. The TCT saw blade with ATAF is best for cutting brittle material, and for smooth, extra fine cuts.
ATBR / ATAFR / BA – Alternate Top Bevel with Raker / Alternate Top Alternate Face with Raker
This tooth type is also known as ATBR or ATAFR or BA(n). It usually has a repeating pattern of 5 teeth. The first 4 teeth are ATB style, and the 5th tooth is a flat-top raker. The flat top raker tooth leaves behind a flat surface after it cuts. It is often named BA5 style. The TCT saw balde with this tooth type is optimized for crosscuts. It leaves a clean finished cut on hard and soft woods with good straightness of the cutting surface.
FTG / B – Flat Top Grind
FTG saw blades are designed to rip wood with the grain. They are optimized to remove chips of material and sawdust from the teeth quickly and efficiently. The FTG blade makes fast, efficient cuts, and is durable and long-lasting. One downside to consider is that it will chip and cause considerable tearout on almost all cuts. Keep that in mind when using it on materials and woods where appearance is important. The FTG is also the only tooth design that leaves a perfectly flat bottom when cutting. That makes it ideal for cutting grooves and splines.
TCG / BT – Triple Chip Grind
The TCG design combines a trapezoid-shaped leading tooth followed by a flat raker tooth that sits slightly lower. This pattern continues around the whole blade. TCG blades combine balanced cutting force with low tooth drag and free chip flow. These characteristics make the TCG one of the more durable blades. The TCG tooth style produces very little chip out and tearout when cutting brittle materials. This makes it a good choice for cutting chipboard (OSB), ferrous and non-ferrous metals, plastics, MDF, laminates, and very hardwoods. It is a nice TCT saw blade with a very specific purpose. It is a specialty miter saw blade used for ultra-fine cuts in producing picture frames, windows, and doors, etc.
Anti-kickback teeth
A shoulder at the back of the tooth prevents the blade from getting carried away by limiting the amount of material cut by each tooth. Otherwise, there is a risk of kickback which could be dangerous. These teeth are found on blades with larger gullets.
◎ Cutting Material
TCT saw blades can be designed to cut soft wood, hard wood, plywood, MDF, HDF, chipboard, bamboo, acrylic, aluminium, copper, cast iron and steel.
It can be tempting to make a cut with your circular or mitre saw using whatever blade is already fitted. However, to ensure the cleanest, safest, most accurate cut each time, using the correct saw blade for the application is vital. All saw blades are designed for specific types of cut. the tooth type and hook angle are different for different cutting materials. For example, TCG / BT type is best for aluminium rods cutting, but ATB / BC type is often used for sold wood ripping.
Hot Selling TCT Saw Blades
Why are we the best supplier of TCT saw blades?
① More than 20 years of experience in producing TCT saw blades.
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③ State-of-the-art production equipment.
④ Perfect ISO9000 quality management.
⑤ Standby stock of regular products and short delivery time.
⑥ After-service technical experts let you worry-free use of products.
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