Long Life, Sustained Cut, Consistent Performance
The 3M™ Trizact™ Cloth Belt 337DC owes its durability and consistent sustained cut rate to its uniquely engineered "bricks and channels" macroreplicated abrasive structure. Uniform abrasive "bricks" keep fresh cutting mineral constantly at the working surface and "channels" sweep debris away to discourage loading and keep the substrate clean.

The "bricks" consist of layers of mineral and grinding aid, up to 4 times as much as conventional aluminum oxide belts of the same grade. These dense layers of abrasive mineral lead to extra-long life and extremely consistent performance. The grinding aid protects heat-sensitive alloys from damage and reducing rework. Trizact belts start sharp and stay sharp. The consistent cut Trizact belts (PDF, 13 Mb) deliver can often consolidate or eliminate process steps. In many cases, Trizact™ 337DC has the capacity to grind and finish in one step.

Microreplication: Engineering Surface Geometry
Building upon the principles of microreplication, 3M scientists developed larger, more diverse abrasive structures — cubes, spheres, ridges — identical in shape and optimized for a variety of applications. Microreplication allows 3M to design abrasives with varying shapes and formulations, to control the level of breakdown, cut, finish and life

These abrasive structures are arrayed precisely and uniformly across a film or cloth backing in a pattern calculated to deliver sustained cut rate and eliminate belt-to-belt variation

Made to Tackle Difficult Metals
Trizact was developed especially for finishing more difficult processing materials like titanium, cobalt, stainless steel, as well as all exotic alloys in the aerospace, aviation and medical industries. Also effective for finishing applications on carbon steel, copper, bronze, aluminum, composite materials and synthetics.

Recommended Applications
Use for dry intermediate finishing, blending, scratch refinement or final dimensioning on robotic, semi-automated, automated, off-hand equipment and portable file belt tools. Use Trizact™ Cloth 337DC belts with:

• Medium hardness contact wheels (50-70 Shore A)
• Rubber contact wheels