3M Cubitron Abrasive Belts: Choosing the Right Belt for Metalworking Applications

Looking for more consistent finishes in your high-pressure grinding or low to medium-pressure offhand applications? For heavy grinding, dimensioning or deburring, and blending and finishing, we carry the top 3M™ industrial abrasive solutions that can help.

3M™ Cubitron™ II abrasive belts are ideal for metal removal, grinding and polishing on a variety of surface substrates including:

  • Stainless steel
  • Cobalt chrome
  • Carbon, steel
  • Cast iron
  • Aluminum
  • Titanium
  • High nickel
  • Soft substrates

Not sure what abrasive belt is right for your needs? Let’s talk about the features and benefits of 3M’s Cubitron II product lineup, including the 984F, the 784F and the 947A.

3M™ Cubitron™ II Abrasive Belt Comparison: 984F, 784F and 947A


We’ve scoured 3M’s resources and talked to our own abrasives experts to deliver a side-by-side comparison of three top Cubitron abrasive belts to help you choose the right belt for your materials and tasks.

3M™ Cubitron™ II 984F Abrasive Cloth Belt

The MVP of abrasive belts, the 3M™ Cubitron™ II 984F Abrasive Belt is excellent in medium to high-pressure applications for stainless steel, carbon steel and cobalt chrome. The precision-shaped grain continuously fractures into sharp points for faster cuts and higher levels of productivity. It’s ideal for use in robotic grinding and degating.

The 984F offers:

  • Long belt life helps you get more parts per belt without frequent changeouts
  • Durable polyester cloth backing
  • Available in a variety of grades: 36+, 50+, 60+, 80+ and 120+
  • Ability to run cooler for less metal discoloration, oxidation and heat stress cracks

View technical data sheet

3M™ Cubitron™ II 784F Abrasive Cloth Belt

The 3M™ Cubitron™ II 784F cloth belt is known as Mr. Versatility and offers excellent performance on a variety of different metals and medium pressure grinding and dimensioning applications. Its precision-shaped grain blend provides longer life than aluminum oxide belts and offers improved productivity and throughput due to its proprietary mineral makeup. Ideal for use in robotic grinding, degating and other pressure-assisted applications.

The 784F offers:

  • Faster, more consistent cuts
  • Polyester waterproof backing
  • Reduced changeouts and downtime
  • Available in grades 36+ to 180+
  • Run wet or dry

View technical data sheet

3M™ Cubitron™ II 947A Abrasive Cloth Belt

You may know the 3M™ Cubitron™ II 947A as Mr. Universal, optimized to cut like a knife through heat sensitive materials like mild steel, aluminum and stainless steel substrates without gouging or plowing. It’s cool cutting action is ideal for medium and low-pressure sanding applications when you want to avoid heat-related damage to the workpiece.

The 947A offers:

  • Grinding aid for less grinding friction and cooler cutting
  • An X-weight poly-cotton backing for flexibility
  • Lasts four times as long as conventional ceramic belts
  • Available in grades 40+ to 120+ for finer finishing applications
  • Run in dry applications

View PDF

We Supply the Abrasive Belts and Tools You Need to Get the Job Done Right

United Surface Preparation understands the work you do and the challenges you must overcome every day. It’s why we partner with the industry’s best manufacturers like 3M™ to deliver the best abrasive products and process solutions to help you get the job done right. We can help you choose the best abrasives for your metal removal and finishing needs to achieve the highest level of job quality for the lowest cost per part! 

Want to learn more about the products and services that can help you achieve better job quality and profitability in your metalworking applications? Call United Surface Preparation today at 800-322-1413 to speak with an expert.

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