Sheartak Helical Cutterhead for Powercraft CT-200 8" Jointer
Upgrade your Powercraft CT-200 8" Jointer with a premium Sheartak helical cutterhead designed for smoother cuts, quieter operation, and long-lasting performance. Many woodworkers are retrofitting their jointers and planers with spiral/helical cutterheads to enjoy a dramatic improvement in surface finish and overall efficiency.
Key Benefits
• Superior Surface Finish
The angled carbide inserts create a true shear-cut, eliminating tear-out and leaving a glass-smooth finish. The staggered cutting pattern outperforms traditional straight knives, even on highly figured hardwoods.
• Much Quieter Operation
Only a few inserts engage the wood at a time, significantly reducing cutting noise in your workshop.
• Long Tool Life
Each insert is made of premium C3++ sintered tungsten carbide and features four indexable cutting edges, offering more than 10× the lifespan of high-speed steel blades.
• Quick & Easy Insert Changes
All inserts are precision-ground to ±0.0004" (0.01mm). Simply loosen the screw, rotate the insert 90° to a fresh edge, tighten, and continue working. Changeovers take minutes and reduce downtime by up to 30%.
• Better Dust Extraction
The spiral design produces smaller, thinner chips that improve dust collection and prevent clogging.
• Lower Operating Cost
No sharpening required. Enjoy smoother surfaces with minimal sanding—your investment quickly pays for itself.
Specifications
Cutterblock Material: AISI 5140 high-tensile alloy steel
Insert Material: C3++ tungsten carbide
Insert Size: 15 × 15 × 2.5 mm, R150
Number of Inserts: 40
Number of Spiral Rows: 5
Wrench Type: Torx T-style
Standard Kit Includes
• High-tensile alloy steel cutter block
• Full set of carbide inserts pre-installed
• 5 extra carbide inserts
• 5 spare screws
• Torx T-style 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.
