Sheartak Helical Cutterhead for Bauer 12-1/2" Planer (Model 1621E-B), 63445#
Upgrade your planer with the Sheartak Helical Cutterhead, engineered to deliver a dramatically smoother finish and longer-lasting performance than traditional straight-knife cutterheads. This cutterhead comes fully equipped with carbide inserts arranged on 5 precision spirals, plus extra inserts and screws for added value and convenience.
The Sheartak spiral design uses round, shear-angled carbide inserts to produce a glass-smooth surface—even on highly figured or very soft woods. Each insert features four cutting edges and can be rotated up to three times, eliminating the need for sharpening and knife resetting. When an edge becomes dull or nicked, simply rotate the insert and keep working.
Carbide inserts stay sharp up to 50 times longer than HSS blades, reducing downtime and maintenance costs. The spiral cutting action also creates smaller, thinner chips, making dust extraction more efficient and improving overall shop cleanliness.
Kit Includes
Perfect for woodworkers looking to improve cut quality, reduce noise, and spend less time on blade maintenance.
Warranty
All Sheartak cutterheads are backed by a 1-year warranty from the date of purchase, covering parts and manufacturer defects.
(Made to Order and Consumable items not included.)
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.
