Upgrade Your KNOVA 6" Wood Jointer KN CM-11MA with the Sheartak Spiral Cutterhead for Outstanding Performance
Enhance your woodworking experience with the Sheartak Spiral Cutterhead and enjoy these incredible benefits:
✅ Superior Finish with No Tear-Out
Each insert is positioned at an angle along the helical path in a staggered pattern, creating a shear-cut effect. This ensures a smooth, tear-out-free finish, even on highly figured hardwood.
✅ Significantly Reduced Noise
Unlike traditional straight blades, the spiral cutterhead maintains continuous contact with the board using only a few knives at a time, resulting in much quieter operation.
✅ Durable Tungsten Carbide Cutters
Made from solid tungsten carbide, these inserts are significantly harder and stay sharp much longer than high-speed steel (HSS) blades. If an edge becomes dull or chipped, simply rotate the insert 90° for a fresh cutting edge. Each insert has four cutting edges, allowing for extended use.
✅ Quick and Easy Installation
The precision-ground, indexable carbide inserts are interchangeable and designed for a hassle-free setup. Simply loosen the screws, rotate the inserts 90°, and tighten them within minutes. The taper-hole locking system ensures precise positioning.
✅ Improved Dust Collection
The smaller carbide inserts remove thinner and shorter chips, making dust extraction more efficient.
✅ Long-Term Cost Savings
Spiral cutterheads require less maintenance, eliminate sharpening costs, and significantly reduce sanding time—making them a cost-effective upgrade that quickly pays for itself.
Spiral Cutterhead Kit Includes:
✔ High-tensile strength alloy steel cutter block
✔ 30 carbide inserts (pre-installed)
✔ 5 extra carbide inserts & 5 extra screws (spare parts included for free)
✔ 2 pre-installed sealed Japanese bearings
✔ 1 wrench
Upgrade your jointer today and experience the Sheartak advantage!
Mejore su Regruesadora KNOVA de 6" KN CM-11MA con el Cabezal de Corte en Espiral Sheartak para un Rendimiento Excepcional
Optimice su experiencia en carpintería con el cabezal de corte en espiral Sheartak y disfrute de estos increíbles beneficios:
✅ Acabado Superior sin Astillado
Cada inserto está posicionado en ángulo a lo largo de la trayectoria helicoidal en un patrón escalonado, creando un efecto de corte en cizalla. Esto garantiza un acabado liso y sin astillado, incluso en maderas con vetas complejas.
✅ Reducción Significativa del Ruido
A diferencia de las cuchillas rectas tradicionales, el cabezal en espiral mantiene un contacto continuo con la madera utilizando solo unas pocas cuchillas a la vez, lo que reduce considerablemente el ruido.
✅ Cuchillas de Carburo de Tungsteno Duraderas
Fabricadas en carburo de tungsteno sólido, estas inserciones son mucho más duras y mantienen su filo por más tiempo que las cuchillas de acero de alta velocidad (HSS). Si un filo se desafila o se daña, simplemente gire la inserción 90° para exponer un borde nuevo. Cada inserto tiene cuatro filos de corte, lo que permite un uso prolongado.
✅ Instalación Rápida y Sencilla
Las inserciones de carburo indexables están rectificadas con precisión, son intercambiables y están diseñadas para una instalación sin complicaciones. Simplemente afloje los tornillos, gire las inserciones 90° y ajústelas en minutos. El sistema de bloqueo con orificio cónico garantiza un posicionamiento preciso.
✅ Mejor Extracción de Polvo
Las inserciones más pequeñas eliminan virutas más finas y cortas, facilitando la recolección del polvo.
✅ Ahorro a Largo Plazo
Los cabezales en espiral requieren menos mantenimiento, eliminan los costos de afilado y reducen significativamente el tiempo de lijado, lo que los convierte en una mejora rentable que se amortiza rápidamente.
El Kit de Cabezal en Espiral Incluye:
✔ Bloque de corte de acero aleado de alta resistencia
✔ 30 inserciones de carburo (preinstaladas)
✔ 5 inserciones de carburo adicionales y 5 tornillos extra (incluidos sin costo)
✔ 2 rodamientos sellados japoneses preinstalados
✔ 1 llave
¡Mejore su regruesadora hoy mismo y descubra la ventaja Sheartak!
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.
