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SKU 7100239567
Legacy SKU UU011201728
UPC 00638060584637
Product Number 784F

3M Cubitron II Cloth Belt 784F features 3M Precision-Shaped Grain for longer life and a faster, more consistent cut than conventional ceramic aluminum oxide belts. A precise mix of shaped ceramic and premium aluminum oxide delivers optimal cut in medium-pressure grinding and blending applications. The belt also features a waterproof backing and grinding aid.

  • 3M Precision-Shaped Grain blend provides significantly longer life than comparable aluminum oxide belts
  • Proprietary mineral provides consistent, faster results on medium pressure applications, helping to improve productivity and throughput
  • Reduces changeouts and downtime in robotic and pressure-assisted applications
  • Moderately flexible backing provides conformability for grinding and blending both straight and contoured surfaces
  • YF-weight polyester backing is used for Grades 36-80, while lighter XF-weight polyester backing is used for Grades 120-180
  • Grinding aid cools abrasive processes on heat-sensitive alloys
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On it's way to you April 30  


Minimum Order 50 Items
Order Increment 50 Items
  High-Quality Cloth Belt Materials
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Color Maroon


  1. **Q:** What are the key features of the 3M™ Cubitron™ ll Cloth Belt 784F?

    **A:** The 3M™ Cubitron™ II Cloth Belt 784F is designed with innovative abrasive technology that delivers fast cutting and long-lasting performance. It features a YF-weight design for added durability and longevity.

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    **Q:** How wide and long is the 3M™ Cubitron™ ll Cloth Belt 784F?

  3. **A:** The belt measures 4 inches in width by 91 inches in length, providing ample coverage for various sanding applications.


  4. **Q:** What does "Top Butt, Single-flex" mean in relation to this cloth belt?

    **A:** The "Top Butt, Single-flex" designation refers to how the seam of the belt is joined. In this case, it has a flat butt joint that provides consistent sanding results without any lap lines.

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    **Q:** Can you tell me about the grit level of this cloth belt?

  6. **A:** This specific variant comes with an abrasive grade (grit) of 80+, offering aggressive cutting power while leaving a smooth finish on surfaces.

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
Outstanding Performance on Medium Pressure Applications

The 3M Cubitron II Cloth Belt 784F is specifically designed for medium pressure industrial applications. It features 3M Precision-Shaped Grain technology, which allows for exceptionally fast cutting and self-sharpening during grinding. This belt is made with a blend of ceramic and aluminum oxide, providing cost-effective performance on medium-pressure applications where a full ceramic belt may not be necessary.

Ideal for Robotic Grinding and Degating

In high-pressure applications like robotic grinding, it is crucial to choose a premium abrasive belt like the 3M Cubitron II Cloth Belt 784F. The mineral in this belt continuously fractures into sharp edges, ensuring long-lasting cutting performance and reducing the need for frequent belt changes. This is especially beneficial in robotic cells, as it maximizes efficiency and allows for increased production.

Run it Wet or Dry

The 3M Cubitron II Cloth Belt 784F is designed to be used wet or dry. Its water-resistant polyester backing allows for wet grinding, while a grinding aid is incorporated to reduce grinding temperatures and protect heat-sensitive alloys. The abrasive is firmly bonded to the backing with resin, ensuring durability even under high heat and pressure.

The Science of 3M Precision-Shaped Grain Blend

3M Precision-Shaped Grain is a revolutionary abrasive technology. This ceramic mineral is engineered to enhance toughness and hardness, resulting in a longer-lasting and more efficient cutting performance. The grains are designed in uniform triangular shapes that continually fracture into super-sharp points and edges, allowing for a fast cut without causing heat-related stress cracks or discoloration. This technology also ensures that the abrasive stays cooler and sharper, leading to extended product life.

Engineered for Demanding Industrial Environments

With over 100 years of experience, 3M is a trusted supplier of abrasives to the metalworking industry. The 3M Cubitron II Cloth Belt 784F is engineered to meet the demands of industrial environments. It offers an exceptionally fast cut and long product life, making it suitable for a wide range of grinding and finishing applications. Whether you are working with heat-sensitive alloys or other metals, you can rely on the consistent and uniform results provided by this high-quality abrasive belt.

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