The log multi-blade rip saw can efficiently process logs and square timber of all sizes below 35cm using hydraulic power assistance. It is a new generation of advanced woodworking machinery designed to improve efficiency for timber processing enterprises. Our multi-blade rip saw has achieved this goal!

The processing efficiency of the log multi-blade rip saw varies depending on the type of wood being processed. This is mainly due to differences in wood grain and hardness, which affect the cutting speed. As mentioned earlier, the selection of the appropriate saw blade depends on the type of wood being cut. Therefore, to ensure the efficiency of the log multi-blade rip saw , it is important to choose the right saw blade for different types of wood, thereby ensuring production efficiency.

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Factors affecting yield when using log multi-blade rip saws

  1. Log conditions:
    The diameter, length, taper, and quality of the logs are closely related to the yield. Logs with larger diameters generally have higher yields compared to smaller diameter logs. Longer logs with significant variations in shape tend to have lower primary yields. Similarly, logs with higher taper result in lower primary yields but may have higher overall yields. Logs with better quality also contribute to improved yield.
  2. Width of the log multi-blade rip saw:
    The width of the saw kerf is determined by the thickness of the saw blade and its sharpening condition. Thicker saw blades not only increase the width of the saw kerf but may also affect the dimensions of the sawn timber, resulting in reduced yield by cutting fewer thick boards and increasing wood wastage.
  3. Allowance for log multi-blade rip saw:
    The allowances for sawing include shrinkage allowance, end trimming allowance, and processing allowance. When sawing timber into boards, these allowances must be considered, and the nominal dimensions of the timber should be enlarged before sawing. Therefore, it is important to leave a reasonable allowance when cutting rough materials and control it within the smallest range possible. The product composition within the same log has a significant impact on the yield. Typically, thick and thin boards are produced together, following the principle of sawing thick boards from the log’s core and thin boards from the edges. Proper nesting of square timbers and boards, as well as reasonable allocation of primary and secondary products, can improve log yield.
  4. Skill level of operators in log multi-blade rip saw operation:
    The skill level of operators directly affects the log yield, especially in sawmills that do not have computer-optimized control systems. It plays a decisive role in various aspects, from designing the sawing scheme to implementing the saw kerf position, from identifying the geometric shape of the log to securing its positioning, and from considering the impact of material on feed speed to edge trimming and final cutting of boards. Therefore, it is important to enhance operators’ theoretical knowledge and technical skills through training.
  5. Quality of the log multi-blade rip saw and production conditions:
    Excellent production conditions and equipment maintenance can reduce deviations. Additionally, even with a well-designed sawing scheme, poor equipment conditions can hinder its implementation. Therefore, regular maintenance of the processing equipment is necessary to ensure it operates in good condition. This not only improves the yield but also enhances the qualification rate and quality of the sawn timber.
  6. Sawing methods in log multi-blade rip saw:
    Different sawing methods yield significantly different results based on the log conditions and the requirements for sawn timber. The product specifications obtained from the rough-sawn method and the board-sawn method differ greatly, with the board-sawn method producing the widest boards and the four-sided-sawn method yielding the narrowest boards. The average width of the boards from the four-sided-sawn method is approximately 75% of that obtained from the board-sawn method, while the three-sided-sawn method falls in between. These three different sawing methods also show notable differences in primary yield and overall yield . For processing defective logs or producing timber with special requirements, specific sawing methods should be chosen. The selection of appropriate sawing methods plays a crucial role in improving log yield.
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