Atlas Press Woodworking Heritage
Atlas Press was a renowned manufacturer of high-quality woodworking tools based in Kalamazoo, Michigan, producing exceptional machinery from the 1930s through the 1960s. Known for their thoughtfully engineered jointers, Atlas Press machines were celebrated for their robust cast iron construction, precise adjustments, and reliable performance. The company also manufactured equipment for Sears Roebuck under the Craftsman, Companion, and Dunlap brand names, establishing a legacy of dependable woodworking tools that continues to serve craftsmen today.
Atlas Press jointers, particularly the popular 4-inch and 6-inch models (including the legendary 6000 and 6001 series), became workshop staples for generations of woodworkers. These machines featured innovative designs with exceptional ease of adjustment and long-lasting durability. In 1965, Atlas Press was acquired by Clausing, but the quality reputation of these vintage woodworking tools endures among collectors and active users alike.
Modern Spiral Cutterhead Jointer Upgrades
Sheartak Tools Ltd. manufactures precision-engineered spiral cutterhead solutions specifically designed for vintage Atlas Press jointers. Our cutter head upgrades transform these classic woodworking tools into modern high-performance machines while preserving their timeless character. Each spiral cutterhead jointer conversion features premium carbide inserts arranged along helical grooves, creating a true shear-cut that dramatically reduces noise and eliminates tear-out.
These mechanical component upgrades deliver exceptional surface finishes that far surpass original straight-knife systems. The advanced cutter head design provides more than 10 times the blade life of traditional high-speed steel 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 sharpening required. This practical design makes your Atlas Press woodworking tools more efficient and cost-effective than ever.
Custom Solutions for Your Atlas Press
Whether you own an Atlas Press 4-inch benchtop model or a 6-inch floor-standing jointer, Sheartak Tools Ltd. can provide the perfect spiral cutterhead upgrade. Our mechanical components are precision-manufactured to match the exact specifications of your vintage machine, ensuring seamless integration and optimal performance. Each cutter head honors the quality legacy of Atlas Press while bringing cutting-edge spiral technology to your classic woodworking tools.
If you're unable to locate your specific Atlas Press model on our website, please reach out to us. We specialize in creating custom spiral cutterhead jointer solutions at affordable prices, helping you maximize the potential of your treasured vintage machinery.
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.
