Resaw Band Saw Blade - Industrial Woodcutting Series
Sipu manufactures the Resaw Band Saw Blade specifically for primary log breakdown, vertical resaw machines, and high-production lumber mills. Designed for deep-dimension cutting of large timber blocks, our blades focus on maintaining straight-line tracking under heavy feed rates, preventing drift when encountering varying wood density and high moisture gradients.
Technical Specifications
| Parameter | Industrial Standard | Dimensional Tolerance |
| Alloy Base | Premium Spring Carbon Steel | N/A |
| Tooth Hardness | 60 - 62 HRC | $\pm1\text{ HRC}$ |
| Backing Flexibility | 42 - 45 HRC | $\pm2\text{ HRC}$ |
| Pitch Configuration | 2 - 3 TPI (Customized Gullet) | N/A |
Structural Performance & Cutting Dynamics
Wholesale timber operations require consistent kerf accuracy over long operating hours. We engineer our resawing lines around specific mechanical metrics:
Deep Gullet Geometry: Our milling process creates an enlarged gullet capacity specifically tailored for deep wood cutting. This expanded space allows high-volume sawdust evacuation, preventing pack-binding and reducing frictional heat accumulation during deep log passes.
High-Tension Body Resilience: Resawing demands substantial machine tension to prevent blade deviation. We utilize a specialized spring alloy steel with a balanced elongation coefficient, allowing the blade to absorb high tension loads (up to 320 N/mm2) without permanent stretching or structural fatigue.
Induction Tooth Hardening: We apply precise high-frequency thermal treatment exclusively to the tooth tips, achieving 60-62 HRC while maintaining a flexible backing body of 42-45 HRC. This configuration resists impact shock against knots while keeping the edge sharp through extended cutting cycles.
Factory Production Standards & Supply Reliability
Sipu operates a 5,000-square-meter manufacturing facility equipped for industrial-scale timber tooling production:
Automated Leveling and Tensioning: Every meter of steel undergoes mechanical roller leveling and computerized tension checks to ensure absolute flatness before tooth milling.
Inline Quality Control: Non-contact laser systems monitor tooth set consistency and strip width continuously during production to prevent tracking errors on vertical resaw mills.
Bulk Inventory Support: We maintain large stocks of wide-strip alloy coils, guaranteeing wholesale order fulfillment and custom loop welding within a 14-day lead time.
Sipu sawing products are sold both domestically and internationally
FAQ
Q: How does the deep gullet design improve performance during heavy timber resawing?
A: Deep gullets provide the necessary volumetric space to clear large wood chips generated during deep cuts. This prevents sawdust from packing between the teeth, which is the primary cause of blade drift and motor overload.
Q: What tension setting is recommended for wide resaw bandsaw blades?
A: We recommend setting machine tension between 300 to 320 N/mm2, depending on the wheel diameter of your vertical resaw mill, to ensure structural rigidity and straight-line accuracy.
Q: Can you supply these blades in continuous coil lengths for our in-house welding shop?
A: Yes. We supply both custom-welded endless loops ready for immediate mounting and random-length master coils (50m/100m) for mills equipped with professional butt-welding machinery.
Q: How do you prevent corrosion on blades stored in humid lumber yard warehouses?
A: All blades are coated with a specialized rust-inhibiting film and sealed in heavy-duty, moisture-resistant packaging to ensure complete protection prior to installation.
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