Sheartak Helical Cutterhead for Cantek 8" Jointer with 40 Carbide Inserts
Upgrade your Cantek 8" Jointer with Sheartak helical cutter head for the following advantages:
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Enhanced Surface Finish: The spiral cutterhead features angled knives that deliver a shear-cut, resulting in a smoother surface with no tear-out. Its staggered cutting pattern ensures a superior finish, even on highly figured hardwoods, compared to a traditional straight cut.
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Reduced Noise: The staggered motion of the spiral cutterhead minimizes noise during operation.
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Extended Lifespan: Made from sintered tungsten carbide, the inserts feature four edges, offering over 10 times the lifespan of high-speed steel blades.
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Easy to Replace: The interchangeable knives are precision-ground to a tolerance of +/- 0.0004" (0.01mm). Changing the knives is quick and easy—simply loosen the screw, rotate the insert 90° to use a fresh edge, and tighten. This reduces downtime by 30%.
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Improved Dust Extraction: The spiral cutterhead generates shorter, thinner chips, improving dust extraction efficiency.
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Low Operating Cost: The smooth surface produced by the spiral cutterhead reduces or eliminates the need for sanding, and with no sharpening required, the cutterhead quickly pays for itself.
Specifications
- Cutterblock Material: AISI 5140 high tensile strength alloy steel
- Insert Material: Grade C3++
- Carbide Insert Size: 15x15x2.5mm R150
- Number of Inserts: 40
- Number of Rows: 5
- Wrench Size: Torx head T type
Kit Includes:
- 40 carbide inserts installed
- 5 extra carbide inserts
- 5 extra Torx screws
- 1 T-handle wrench
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.
