Elevate your professional-grade Frejoth woodworking equipment from Taiwan with our expertly designed spiral cutterhead modernization systems. Specifically engineered for Frejoth International's professional jointer and automatic planer lines—including the WJT-150 6" jointer and larger industrial models—our retrofit technology delivers cutting performance that matches the robust construction philosophy these Taiwanese-manufactured machines embody.
Our precision-engineered cutter head assemblies replace traditional straight-knife systems with strategically positioned carbide insert arrays that fundamentally change material removal characteristics. Unlike conventional blade impact that requires heavy motor torque, our helical insert configuration distributes cutting forces across multiple engagement points. This progressive material removal approach reduces power consumption while simultaneously improving surface quality—particularly beneficial when processing dense tropical hardwoods or abrasive composite materials that Frejoth equipment commonly handles in industrial applications.
Constructed as industrial-specification mechanical components designed for continuous-duty cycles rather than intermittent hobbyist use, our cutterheads feature precision-ground carbide inserts secured in individually machined pockets. The operational transformation proves substantial—our spiral cutterhead jointer conversions typically achieve noise reductions exceeding 20 decibels compared to straight-knife configurations, converting Frejoth machines from industrial-level sound output into surprisingly moderate operational signatures suitable for shared manufacturing spaces.
Premium tungsten carbide inserts manufactured to industrial tooling specifications differentiate these woodworking tools from consumer-grade alternatives. Each insert undergoes multi-stage grinding processes ensuring consistent geometry across all four cutting edges, with edge preparation optimized for extended service intervals between rotations. This durability proves essential for Frejoth equipment owners operating production schedules where unplanned maintenance interruptions directly impact manufacturing throughput and delivery commitments to customers.
Retrofitting Frejoth woodworking machinery with spiral cutterhead technology represents strategic equipment modernization for shops committed to maintaining existing capital investments. These upgrades prove particularly valuable for older Frejoth models predating factory spiral cutterhead options—allowing owners to preserve proven mechanical platforms while incorporating contemporary cutting technology. Experience how precision Taiwanese manufacturing standards integrate seamlessly with advanced carbide insert systems, extending productive service life while elevating output quality to contemporary industrial benchmarks.
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.
