Retrofit your KNOVA Cepilladora para madera 12 1/2'' x 6''|KN AP-125|10896 today with a Sheartak spiral cutterhead for the following benefits.
· Better quality finish with no tear-out. All the inserts are angled along the spiral in a staggered pattern and create a shear-cut effect on even highly figured hardwood.
· Noise is hugely reduced as only a few carbide knives keep constant contact with the board instead of slamming into it periodically as a straight-edge knife might.
· All the cutters are made of solid tungsten carbide which is much harder and stays sharp longer than high-speed steel. If one edge chips or dulls, rotate it 90 for a new sharp edge. Each insert has four cutting edges and can be used four times.
· The carbide inserts are very easy to set up. They are precision ground to a very tight tolerance and are interchangeable. Loosen the screw, rotate the insert 90, and tighten it in minutes. The inserts can be precisely positioned using the taper hole style locking feature.
· A spiral cutterhead results in smaller and shorter woodchips which make dust extraction much easier.
· In the long term, spiral cutterheads pay for themselves and save you both time and money.
Spiral Cutterhead Kit includes:
· High tensile strength alloy steel cutter block.
· 40 Carbide inserts installed on 5 spirals
· 5 Extra carbide inserts & 5 extra screws free as spare parts
· 2 Premium sealed bearings.
· 1 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.
