Spiral Cutterhead for General 130 14-inch Planer - 6 Spirals, 90 Knives
Upgrade your machine with Sheartak spiral cutterheads to enjoy these key benefits:
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Superior Finish: Achieve a smooth, tear-out-free finish. The staggered, angled inserts work in a helical pattern to deliver shear-cut effects, even on highly figured hardwoods.
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Reduced Noise: The spiral cutterhead minimizes noise significantly by maintaining constant contact with the board, using fewer knives.
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Long-lasting Tungsten Carbide Cutters: Made from solid tungsten carbide, these cutters are tougher and stay sharp much longer than traditional high-speed steel blades. If an edge becomes dull or chipped, simply rotate it 90° to reveal a new sharp edge. Each insert features four cutting edges, offering up to four uses.
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Quick and Easy Setup: Precision-ground carbide inserts are interchangeable, and the process is simple. Just loosen the screws, rotate the inserts 90°, and re-tighten in a matter of minutes. The tapered hole locking system ensures precise positioning.
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Efficient Dust Extraction: Smaller carbide inserts remove finer material, which simplifies dust extraction.
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Cost-Effective: Spiral cutterheads are more economical in the long run, often paying for themselves quickly due to their durability and performance.
Spiral Cutterhead Kit Includes:
- High-strength alloy steel cutter block
- 90 carbide inserts pre-installed
- 5 extra carbide inserts and 5 extra screws (free spares)
- 1 wrench
Installation Instructions:
To install the cutterhead, you may need to pass it through the bearing block bore in the machine housing. If the cutterhead doesn't fit with the carbide inserts already installed, you might need to temporarily remove one or two full sets of knives for installation. Once the cutterhead is positioned, re-install the carbide inserts and tighten them to a torque range of 48-52 pound-inches.
While installing the carbide inserts is a simple process, attention to detail is essential. For complete instructions, please download the manual and watch the accompanying video for a step-by-step guide.
Manual
Video
Do I need to replace the original bearings?
If the bearings in your machine are in good condition, they can be reused by carefully removing them with a bearing or pulley puller. However, if the bearings are tightly pressed onto the shaft, removal may cause damage. To minimize this risk, we recommend replacing old bearings with our greased and sealed bearings, designed for long-lasting performance. For a smooth upgrade, we suggest adding the bearings to your shopping cart before completing your purchase.
We provide premium bearings from NSK, SKF, NTN, FAG, Timken. They are renowned for their high quality and performance, designed to provide durability and reliability in various applications
If you add the bearings to your order, we will preinstall them for you when premounting is possible, saving you the hassle of doing it yourself.
Do I need to to Add a Few Boxes of Carbide Inserts
We provide 5 carbide inserts and 5 screws as spare parts. However, many of our customers choose to purchase additional boxes, as the shipping costs for separate purchases can make it less economical.
Do I need a Torque Wrench?
To securely lock the carbide inserts, we recommend applying a torque of 48 to 52 Pound-Inches (or 5.42 to 5.88 Newton-Meters). (Note: 1 Newton-Meter is equal to 8.851 Pound-Inches, and 1 Pound-Inch is approximately 0.113 Newton-Meters.) It is crucial not to apply excessive torque, as this could cause the carbide inserts to crack or explode. On the other hand, using too little torque may result in the inserts not being properly secured, which could lead to cracks, shattering, or uneven height on the cutter block, causing ridges or lines on the board.
If one person is responsible for maintaining the machine, they can typically apply the same torque consistently without a torque wrench. However, when multiple people are involved in machine maintenance, ensuring uniform torque application can be challenging. For consistency and peace of mind, we recommend using a torque wrench.
What kind of steel the cutter block is made of?
The cutter block is constructed using GB/T 40Cr, a structural alloy steel of the same caliber as ASTM grade 5140, AISI 5140, SAE 5140, DIN 41Cr4, BS 41Cr4, JIS SCr440, and EN 41Cr4.The primary components of this steel are as follows: carbon (C) at a range of 0.37-0.44%, silicon (Si) between 0.17-0.37%, manganese (Mn) within 0.50-0.80%, and chromium (Cr) from 0.80-1.10%.
In terms of physical properties, this steel exhibits a tensile strength range of 115-234σb/MPa, a yield strength of 2σ 0.2 ≥/MPa, and an elongation capacity of 65 δ5≥ (%). It also has a HBS range of 123-321 and a HRC rating of 30.
This alloy steel is frequently utilized in low to moderately stressed components for machines, engines, and vehicles.
