What kind of gang saw blades with rakers are really of good quality?
Gang saw blades with rakers are also named TCT saw blades with rakers, or ripping saw blades with rakers, mainly used for wood ripping cut with high cutting efficiency. At present, there are many brands of blades on the market, with various of quality and cutting performance. So how can we choose gang saw blades with rakers with real high quality and reasonable prices?
1) Reasonable design of saw blade
To determine the outer diameter of the saw blade, kerf, number of teeth, teeth type, TCT kind, the number and length of raker, etc. Reasonable design is the basic condition of high performance blades for the application of gang ripping cut.
2) Strength of blade body
The strength of blade body is not exactly equal to the hardness. If the hardness of saw blade body is increased blindly, the brittleness of blade body will increase and it is easy to fracture. In addition, due to the poor toughness of the saw blade and insufficient tension, the quality of the cutting surface decreased. On the other hand, if the blade body hardness is too low, saw blades can not meet the demand of high feed cutting strength. Therefore, reasonable blade body hardness design is also very important.
3) length, width, quantity and distribution of the raker
The purpose of raper design is mainly to push out the chips in time in high speed cutting operations, to prevent the chips blocked in the saw road, so as to ensure that there is no saw blade body deformation happened. So the length, width, number and distribution of the raker are very important.
4) Consistency of saw blade kerfs
Gang saw blades with rakers are used in a group of 3 to 10 blades or more. The cutting machine often need two groups of saw blades at the same time to operate wide wood ripping, The saw blades are often located above and below or left and right to ensure wider wood can be cut. So the consistency of blade kerfs are very important, otherwise there will be obvious uneven in the middle of the wood plate after cutting.
