Among woodworking tools fans who use wood helical planers , more and more people used spiral planers. Some woodworker friends showed on the Internet the situation of their equipment with spiral wood planers,I found that most of them are not clear how to choose the suitable helical planer head for their machine, that is to say, it is not also not clear how to choose a spiral planer cutter head, and it is often given high prices by unscrupulous merchants.
In fact, the spiral cutterhead are also divided into different quality standard,the he price of helical planer head of different grades is very much related. Let me introduce to you:
The basic parameters of the spiral cutterhead are: cutting length ( planing width), the diameter of the outer circle of the planer, the number of spiral grooves (the number of rows of the planer), the number of planer blades, and the cutting angle of the planer blade.
It¡¯s easy to understand the cutting length and the outer diameter of the planer cutting , everyone will know how much planing width and diameter of planer shaft to choose by looking at this parameter.
The three parameters of the number of spiral grooves (the number of rows of the planer), the number of planer blades and the cutting angle of the planer blade determine the planing grade and price of the spiral planer. This is the content I focus on.
The number of spiral grooves,for the national standard or European and American standards, the number of spiral grooves is set to 2 wings, 4 wings, 6 wings, 7 wings, 9 wings, 12 wings, 15 wings, 18 wings, 21 wings, 24 wings.,the more wings set on the helical cutterhead of a certain diameter, the more planer blades are arranged, and the better the planing quality. Of course, in certain circumstances, the more grooves, As a result, the diameter of the entire cutter shaft is also larger. In the case of a certain diameter cutter head, of course, the more grooves, the better, and the more blades are arranged, the better.
In the same slot, the more blades arranged, the higher the planing quality, and the higher the overall cost of the shelix cutterhead. Therefore, the planer cutter head of different prices has different numbers of blades on the same slot.
Of course, under certain circumstances, the more grooves, the larger the diameter of the entire cutter head. In the case of a certain diameter cutter head, the more grooves, the better, and the more blades are arranged, the better.
The cutting angle of the planer edge, that is the angle between the direction line of the cutting edge of the blade and the planing line of the planer (the angle relationship between the direction line of the cutting edge of the blade and the axis of the knives);It¡¯s an important parameter that is not easy to be found by non-professional woodworking friends. According to the cutting angle of the planer blade, the spiral cutterhead is divided into a flat-cut spiral cutterhead and an oblique-cut spiral cutterhead . These two cutting methods are different, and they also determine the spiral. There is a big difference between the quality of the jointer cutter head and the price, and the price will be multiple.
If there is a certain angle between the cutting edge direction line of the blade and the planing line of the planing table, then this kind of helical cutter head resistance in the planing process is small, the noise is also low, and the quality of the planing is high. However, the manufacturing process is relatively complicated, and the natural cost is high.
If there is a parallel relationship between the cutting edge direction line of the blade and the planing line of the planer, then this helical cutter head resistance during the planing process is greater, and the noise is greater, so its manufacturing The process is relatively simple, and the natural cost is lower. Its planing quality is not as good as that of the planer cutter head.
In terms of table saws and wood lathes, usually mainly planing is flat planing,the size of spiral cutterhead with shaft used should be larger than that of the press planer,you can choose a helical cutterhead with more grooves. If the size is small, you can only choose a spiral cutterhead with a relatively small shaft diameter.
Therefore, if you need to choose a jointer cutter head, you must understand the specific parameters of the spiral cutterhead you choose the number of spiral grooves and the number of planer blades and the cutting angle of the planer blade, all are relationship with the price. Otherwise, it will be overpriced by some merchants.