The "number of teeth" on a chip saw refers to the number of blades (teeth) attached around the circumference of the disc-shaped blade.
The "pitch" of a chip saw refers to the spacing between the blades; if there are more blades, the pitch is finer, and if there are fewer blades, the pitch is coarser. In aluminum cutting, this "number of blades" has a significant impact on cutting precision, speed, and the occurrence of burrs. ▶️Basic Principles for Selecting the Number of Blades ✅ It is ideal for 2 to 3 blades to be in contact with the material simultaneously at all times. ✅ The thinner the material, the finer the pitch (i.e., more teeth) is required. ✅ For thicker or harder materials, a coarser pitch (i.e., fewer teeth) provides more stability.
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▶️ Selection Guidelines Based on Material Thickness | Material Thickness | Recommended Number of Teeth (φ405) | Features | |------------------------|-------------------------------------|-----------------------------------| | 2mm or less (thin plate) | 100-120 teeth | Less burr, focus on finishing | | 5-10mm (medium plate) | 80-100 teeth | Balanced cutting performance and speed | | 30-50mm (thick plate) | 50-70 teeth | Easier chip removal, prevents burning and welding | *These values are guidelines and may need adjustment based on material hardness and machine conditions. ▶️ Relationship Between Number of Teeth and Cutting Quality | Item | Many Teeth (Fine Pitch) | Few Teeth (Coarse Pitch) | |------------------------|-------------------------------------|-----------------------------------| | Surface Finish | Clean and smooth | Rough but fast | | Burr Generation | Few | Can occur depending on conditions | | Cutting Resistance | Slightly high | Easier to keep low | | Heat Generation | Tends to rise | High heat dissipation | | Tool Life | Prone to wear under overload | Load is easier to distribute |
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▶️Points to Note for Tooth Count Selection - If the material is too thin and the tooth count is low, the teeth will contact one by one, causing burrs and vibrations. - Conversely, using too many teeth on thick plates can cause chips to clog between the teeth, increasing the risk of welding, burning, and tooth chipping. ▶️Practical Tips: ✅ Ideally, 2 to 3 teeth should be in contact simultaneously at all times. ✅ Consider the machine feed speed and cutting method when making your selection. ▶️Example of Chip Saw Product Labeling (with Tooth Count) Example: φ405 × 3.0t × 2.5×100Z×φ25.4 Blade Type Triple - Outer diameter: 405mm - Blade thickness: 3.0mm - Base thickness: 2.5mm - Tooth count: 100 - Inner diameter: 25.4 → In this case, a finer setting with 100 teeth is optimal for thin to medium-thick extruded materials. ▶️Support from Okumura Machinery Manufacturing We offer the "OKUMURA SELECT" service, which proposes the optimal combination of outer diameter, blade type, tooth count, and pitch based on the material, dimensions, and working conditions of the cutting target. If you would like to select safe and reliable cutting conditions based on actual machine test data, please feel free to consult us.
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▶️Points to Note for Tooth Count Selection - If the material is too thin and the tooth count is low, the teeth will contact one by one, causing burrs and vibrations. - Conversely, using too many teeth on thick plates can lead to chips getting stuck between the teeth, increasing the risk of welding, burning, and tooth chipping. ▶️Practical Tips: ✅ Ideally, 2 to 3 teeth should be in contact at the same time. ✅ Consider the machine feed speed and cutting method when making your selection.
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How do you decide the number of teeth on a chip saw?" "The number of teeth on a chip saw greatly affects the precision and efficiency of the cutting surface. With more teeth, multiple blades touch the material simultaneously during cutting, which stabilizes the cutting surface and improves the finishing precision. On the other hand, fewer teeth can increase the cutting speed, but it may decrease precision, so it's important to choose based on the work content." "I see! Are there any videos that can help me decide which number of teeth is suitable?" "Of course. There are related videos that show cutting with the optimal number of teeth, so definitely check them out. By watching actual cutting scenes, you can clearly understand the differences in cutting and the improvements in precision based on the number of teeth.
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Okumura Machinery Manufacturing Co., Ltd. was founded in Takamatsu City in 1952. We began manufacturing woodworking machines in 1965 and consistently focused on aluminum profile cutting in the 1970s, achieving success in this area. By focusing on the goal of ensuring and improving our customers' productivity, we became a market leader in aluminum cutting machine manufacturing. With a product range of over 100 items, we can meet various customer needs. Additionally, our semi-custom machine designs allow us to provide products tailored to various fields and company sizes. Our domestic product range, which exceeds 6,000 units, speaks to our capabilities. However, what we take particular pride in is that we have remained a grounded company that embodies the values of small and medium-sized enterprises, such as quality, flexibility, individuality, reliability, and closeness to our customers. One indicator of the superior quality of our products is their longevity, with many of our products being used for over 30 years. Our goal is to develop perfect products for our customers. We look forward to being your partner in providing products and services that understand and meet your needs at Okumura Machinery Manufacturing Co., Ltd.