Esko Kongsberg Bld-Sf310 Sf320 Sf311 Sf321 Flat Carbide Blade for Esko Kongsberg digital cutting tables
The "SF" designation explicitly denotes a Static Flat shank configuration , meaning these blades are built to fit inside non-oscillating, fixed tangential tool modules like the Rigid Knife Tool (RKT) or the Hi-Force Knife Tool (HFKT) . They are designed for high-speed, continuous dragging and pulling vectors rather than vertical sawing oscillations.
The listed items refer to specialized tungsten carbide knife blades for Esko Kongsberg digital cutting tables, typically used for high-precision industrial cutting of gaskets, corrugated boards, and other rigid materials.
Blade Specifications
These blades are categorized as single-edge flat or round shank blades depending on the specific model and the tool head they are paired with:
· BLD-SF320 (G42423871): A static knife blade primarily designed for gasket cutting. It is also effective for making corrugated samples. It typically has a maximum cutting thickness of 10mm (3/8").
· BLD-SF311 (G42423863): A specialized blade compatible with Kongsberg C and X Series cutting tables.
· BLD-SF321: A tungsten carbide oscillating blade. It is often available with a 6mm or 8mm round shank and is used for cutting leather, textiles, composites, and packaging materials.
· BLD-SF310: A general-purpose flat blade used for high-precision applications requiring a long service life, such as folding cartons.
Tool Compatibility
To use these blades on a Kongsberg table, they must be installed in compatible tool heads, such as:
· Multi-Purpose High-Frequency (MP HF) Knife Tool: Often used for thick and rigid paper-based materials.
· VibraCut / Hi Frequency VibraCut: Required for oscillating blades like the SF321 on C and XP series tables.
Replacements Can Be Sourced Through The Shenzhen Oyea Machinery Co., Ltd
Micro-Grain Tungsten Carbide Composition: These blades are pressed from ultra-fine grain tungsten carbide blanks. This allows the cutting edges to remain microscopically sharp for exponentially longer runs compared to standard tool steel, reducing the frequency of blade changeovers during high-volume production.
Rigidity vs. Brittleness: Because they are solid carbide, the SF series blades are incredibly stiff. This prevents blade deflection (warping or bending), ensuring that the geometric measurements of the top layer of your board exactly match the bottom layer. However, this stiffness makes them highly brittle. They cannot tolerate side-impact shocks; if the blade hits a stray steel hold-down clamp or dives into an improperly calibrated metal table bed, the tip will shatter immediately
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