K223r

A direct replacement for the Esko BLD-SR6223 and Gerber / MCT G42437293, with no holder modification needed. Single edge drag blade for through-cut cutting on Esko and Gerber / MCT flatbed cutting systems.

Sold individually.

Direct OEM replacement

The K223R replaces Esko BLD-SR6223 (also listed as SR6223 and 6223) and Gerber / MCT G42437293 (also listed as 42437293), with the same form, fit, and geometry as the original. No holder modification needed before installation.

What is through-cut cutting?

Through cutting means the blade cuts completely through all layers of the material, including any backing or liner. The cut piece separates fully from the sheet.

Fine Grain Tungsten Carbide

The K223R is ground from fine grain tungsten carbide. Carbide holds a sharper edge longer than steel and stands up to abrasive materials without dulling mid-run. For high-volume production on corrugated board, foam, carpet, or honeycomb, that means fewer blade changes and more consistent cut quality across the shift.

Common questions

How do I know this fits my machine?

If your machine takes Esko BLD-SR6223 or Gerber / MCT G42437293, the K223R is a direct drop-in. Not sure? Contact us before you order and we will confirm the fit.

What materials does it cut?

The K223R is rated for corrugated board, foamboard, folding carton, felt, leather, display board, foam rubber, carpet, sandwich board, honeycomb, sandblasting mask, PET acoustic felt, varnish, and 3M VHB. If you are cutting something not on this list, call us and we can tell you whether this blade is the right call.

What do the cutting angle and wedge angle mean?

The K223R features a 66° cutting angle and a [VERIFY: 30°?] wedge angle. The cutting angle controls how the blade tracks through the material; the wedge angle sets the edge geometry and durability. Together, they deliver clean cuts and consistent liner protection across a wide range of production materials.

How do I know when to replace it?

Watch for dragging through material it used to cut cleanly, tearing at the cut edge, or pieces that no longer release from the sheet. Any of those signs means it is time for a fresh blade.

Getting the most from your cutting table

A fresh blade is a good start. But if you are going through blades faster than expected, or cut quality has become inconsistent, the blade is rarely the whole story. Cut depth, speed, pressure, and machine condition all affect how long a blade lasts and how clean it cuts.

It is worth asking: When was your machine last serviced? Are your parameters dialed in for this material? Is this the right blade geometry for what you are cutting? Could your operators use time with someone who runs these machines every day?

Flatbed Tools offers machine service, preventive maintenance, operator training, and workflow consulting. If something is not cutting right, reach out. We have probably seen it before.