Multi-blade saw blades are saw blades that are installed and used together with multiple blades, generally alloy saw blades.

1. Multi-blade saw blades are suitable for longitudinal cutting of solid wood, and they can be used in groups to improve efficiency. Good cutting effect and durable.

2. The outer diameter of multi-blade saw blades: it mainly depends on the installation limit of the machine and the thickness of the cutting material. The small diameter is 110MM, and the large diameter can reach 450 or larger. Some saw blades need to be installed up and down at the same time according to the requirements of the machine. , or installed left and right at the same time, to achieve greater cutting thickness without increasing the diameter of the big saw blade and reducing the cost of the saw blade

3. The number of teeth of multi-blade saw blades: In order to reduce the resistance of the machine, increase the durability of the saw blade, and reduce noise, the number of teeth of multi-blade saw blades is generally designed to be fewer, and the outer diameter of 110-180 is 12-30 and those with more than 200 teeth are generally only about 30-40 teeth. There are indeed machines with higher power, or manufacturers that emphasize cutting effects, and a small number of designs are about 50 teeth.

Fourth, the thickness of the multi-blade saw blade In theory, we hope that the thinner the saw blade, the better. The sawing kerf is actually a kind of consumption. The material of the alloy saw blade base and the process of manufacturing the saw blade determine the thickness of the saw blade. If the thickness is too thin, the saw blade is easy to shake when it is working, which will affect the cutting effect.

5. The aperture of multi-blade saw blades: it depends on the requirements of the machine, because multiple blades are installed together. In order to ensure stability, the general design aperture is larger than that of conventional saw blades. Most of them  increase the aperture and install special The flange is designed with a keyway to facilitate the addition of coolant for cooling and increase stability. Generally, the aperture of the 110-200MM outer diameter saw blade is between 35-40, the aperture of the 230-300MM outer diameter saw blade is between 40-70, and the saw blade above 300MM is generally lower than 50MM.

6. The tooth shape of multi-blade saw blades is generally left and right alternating teeth, and a few small-diameter saw blades are also designed as flat teeth.

7. Coating of multi-blade saw blades: After welding and grinding of multi-blade saw blades, coating treatment is generally carried out, which is said to prolong the service life. In fact, it is mainly for the beautiful appearance of the saw blades, especially with scrapers of the multi-blade saw blade , the current level of welding, there are very obvious welding traces on the scraper, so it is coated to keep the appearance.

8. Multi-blade saw blade with scraper: The blade of multi-blade saw is welded with hard alloy on the base of the saw blade, collectively referred to as scraper.

Scrapers are generally divided into inner scraper, outer scraper and tooth scraper. The inner scraper is generally used for cutting hardwood, the outer scraper is generally used for cutting wet wood, and the tooth scraper is mostly used for edge trimming or edge banding saw blades, but they cannot be generalized.

The multi-blade saw blade with scraper is a trend. Foreign companies invented the multi-blade saw blade with scraper earlier. When cutting wet wood and hard wood, in order to achieve a better cutting effect, reduce the saw blade burnt, increase the chip removal capacity of the machine, reduce the number of grinding times, and increase durability.

However, it is very difficult to sharpen the blades of multi-blade saws with scrapers, and the general equipment cannot be sharpened, and the price is relatively high.