Enhance your Rikon Model 20-600H 6″ Helical Benchtop Jointer with the Sheartak Spiral Cutterhead featuring 20 carbide inserts, and enjoy a variety of improvements:
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Achieve a Smoother Finish with No Tear-Out: The spiral cutterhead's slight knife angle produces a shear cut, while the staggered cutting pattern ensures a superior finish compared to a single straight cut. This combination eliminates tear-out and provides a silky, glossy surface even on highly figured hardwoods.
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Reduced Noise: The staggered knife arrangement of the spiral cutterhead minimizes noise significantly, making your jointer quieter to operate.
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Longer Tool Life: The 15x15x2.5mm sintered tungsten carbide inserts are far more durable than high-speed steel, offering more than 10 times the lifespan. Each insert has four sharp edges for extended performance.
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Easy Insert Changes: With precision-ground knives that are interchangeable within a tolerance of +/-0.0004" (or +/-0.01mm), changing inserts is quick and easy. Simply loosen the screw, rotate the insert 90° to expose a fresh edge, and tighten it in place.
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Improved Dust Extraction: The spiral cutterhead generates thinner, shorter chips that improve dust extraction, keeping your workspace cleaner.
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Cost-Effective: The spiral cutterhead provides a smooth, tear-out-free finish, significantly reducing or eliminating sanding work. It doesn’t require sharpening, meaning the investment pays for itself in no time.
Standard Kit Includes:
- High-tensile strength alloy steel cutter block
- 20 carbide inserts installed
- 5 extra carbide inserts
- 5 extra screws
- 2 premium sealed bearings
- 1 Torx head T-type key
Upgrade your jointer today for quieter operation, improved performance, and a longer-lasting, cost-effective tool.
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.
