Sheartak Spiral Cutterhead for Kamro AFK 5 510 mm Surface Planer Jointer (Flattener) – Complete Carbide Insert Set
Upgrade your Kamro AFK 5 planer with a Sheartak spiral cutterhead for improved surface quality, quieter operation, and long-term reliability. Designed as a direct retrofit, this cutterhead delivers consistent, high-quality results on a wide range of hardwoods and softwoods.
Key Benefits
Superior surface finish, virtually no tear-out
Each carbide insert is set at a slight shear angle, creating a staggered cutting action around the cutterhead. This shear-and-spiral cut greatly reduces tear-out and produces a smoother, cleaner surface—even on figured or difficult grain.
Significantly reduced noise
Instead of all knives striking the wood at once, the staggered engagement of the spiral design results in noticeably quieter operation compared to traditional straight-knife cutterheads.
Exceptional insert lifespan
Uses 15 × 15 × 2.5 mm sintered tungsten carbide inserts, offering more than 10× the service life of high-speed steel knives. Each insert features four usable cutting edges for extended use.
Fast, simple insert changes
Precision-ground inserts (±0.0004" / ±0.01 mm) are fully interchangeable. When an edge dulls, simply loosen the screw, rotate the insert 90°, and retighten—no knife setting or sharpening required.
Improved dust collection
The spiral cutting action produces smaller, thinner chips, making dust extraction more efficient and helping keep your machine and shop cleaner.
Lower operating cost over time
Reduced sanding, no sharpening downtime, and long insert life mean this upgrade quickly pays for itself in everyday use.
Kit Includes
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
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.
