Bernardo Woodworking Excellence from Austria
Bernardo woodworking is a distinguished Austrian brand under the family-owned PWA HandelsgesmbH company, established in 1997 with roots dating back to 1979. Based in Linz, Austria, Bernardo has earned an exceptional reputation for manufacturing high-quality woodworking tools that combine precision, performance, and reliability. With over 40 years of experience and distribution across more than 26 countries, Bernardo woodworking machinery serves everyone from hobby craftsmen to industrial operations.
Bernardo woodworking machines are renowned for their robust construction, optimal price-performance ratio, and comprehensive product range. Popular models including the AD260, AD310, AD410, and PT260 series deliver professional-grade results with features like cast iron tables, powerful motors, and efficient dust extraction systems. Since 2010, all Bernardo woodworking products undergo regular voluntary CE conformity checks by TÜV Austria Services GmbH, ensuring the highest quality standards and safety certification.
Advanced Spiral Cutterhead Technology
Sheartak Tools Ltd. manufactures precision-engineered spiral cutterhead solutions specifically designed for Bernardo woodworking machinery. While many newer Bernardo models feature helical knife planer shafts, our cutter head upgrades are available for earlier models and provide enhanced performance. Each spiral cutterhead jointer conversion features premium carbide inserts as mechanical components arranged along helical grooves, creating a true shear-cut that dramatically reduces noise stress and ensures optimal planing results.
These mechanical component upgrades deliver exceptional surface finishes that enhance the already impressive quality of Bernardo woodworking tools. The advanced cutter head design provides more than 10 times the blade life of traditional straight knives. When an edge dulls on your spiral cutterhead jointer, simply rotate the carbide insert 90 degrees for a fresh cutting edge—no blade removal or complicated adjustments required.
Professional Mechanical Components
Sheartak Tools Ltd. manufactures every Bernardo woodworking spiral cutterhead using high-tensile strength alloy steel paired with sintered tungsten carbide inserts. Each cutter head is precision-ground to tolerances of ±0.0004" (±0.01mm), ensuring seamless integration with your Bernardo machinery. Our mechanical components are engineered to match the specifications of popular models including combination planers, jointers, and thickness planers.
Whether you own a Bernardo AD260S, AD310S, PT260, or other model, our spiral cutterhead solutions deliver professional reliability and performance. These woodworking tools reduce operational noise, improve surface quality, and complement the excellent spare parts support that Bernardo is known for, maximizing your investment in quality Austrian engineering.
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.
