The saw blade can be cut into horizontal or vertical band saws and horizontal frame saws. Although the latter has a high cutting precision, the productivity is low. The modern SAT-type special sawing machine is composed of a reciprocating circular saw with a diameter of 1500mm, a cylindrical combination milling head with a length of 600mm (also capable of reciprocating motion), a positioning device for supporting and rotating logs, and a rotating card shaft.
The three-sided saw cuts the split wood: the suitable diameter is 40-60em, the yield is 50%-52%, and the number of wood fixed on the planer can only be one or two, and the productivity is low.
The rounded four-sided saw cuts the split wood side: it can be firmly fixed on the planer, and can be placed at the same time for 3-5 pieces of wood. Some use a four-sided saw to cut the angle of the square to facilitate the future mosaic, but the valuable sapwood becomes waste, which reduces the rate of the planed thin wood. This method is suitable for logs with a diameter of 40-60 cm and a yield of 48% to 50%.
Round edge three-sided saw cut four open wooden side: suitable for diameter more than 60cm, the yield rate is 50% ~ 60%, can get a wide diameter cut thin wood and narrow string cut thin wood.
Saw-striped wood: This method is used when the thin wood is required to be basically a radial cut. In the past, there was no special sawing machine tool, which was rarely used. Now there is a special sawing machine tool, and the large-diameter wood saw is gradually adopted.
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Label: sawing the technical indicators of various types of wood
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