Upgrade your Woodfast 16" Jointer Planer TH410 with a Sheartak Helical Cutterhead featuring 72 carbide inserts arranged on 4 spirals.
The Sheartak helical cutterhead is designed to provide a smoother surface finish than a conventional straight-knife cutterhead. Each round-edged carbide insert is positioned at an angle to create a shear-cutting action, helping produce a clean, smooth finish even on highly figured hardwood or softer wood.
Smoother Finish with Reduced Tear-Out
The angled carbide inserts cut the wood progressively rather than across the full width of the board at once. This shear-cutting and staggered-cutting action helps reduce tear-out and produces a smooth surface that can also reduce the amount of sanding required.
Long Carbide Insert Life
Each carbide insert has four usable cutting edges. When one cutting edge becomes dull or damaged, simply loosen the screw and rotate the insert 90° to expose a fresh edge.
This eliminates the need to sharpen and reset traditional planer knives each time an edge becomes dull or nicked.
Easy Insert Rotation and Replacement
The interchangeable carbide inserts make routine maintenance simple. Instead of removing and sharpening a full set of straight knives, only the affected insert needs to be rotated or replaced.
Reduced Cutting Noise
Because only a small number of inserts are cutting at any given moment, the staggered cutting action can help reduce operating noise compared with conventional straight-knife cutterheads.
Improved Dust Extraction
The Sheartak helical cutterhead produces smaller and shorter chips, allowing dust collection systems to handle chips more efficiently.
Warranty
Sheartak cutterheads are covered by a one-year warranty from the date of purchase against manufacturing defects.
Consumable items, including carbide inserts and screws, are not covered by the warranty.
Specifications
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Compatible Machine: Woodfast TH410 16" Jointer Planer
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Cutterhead Type: Helical Cutterhead
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Number of Carbide Inserts: 72
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Cutterblock Material: AISI 5140 high-tensile-strength alloy steel
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Carbide Grade: C3++
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Carbide Insert Size: 15×15×2.5mm R150
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Wrench Type: T-handle Torx wrench
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Number of Spirals: 4
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.
