3M 7100084421 Trizact 337DC Abrasive Belt 72x2 Inch Ao

Product Description

The 3M 7100084421 is a Trizact 337DC aluminum oxide abrasive belt built for intermediate to final finish work in medium-pressure grinding and finishing applications. The belt runs on a durable X-weight cloth backing and incorporates a grinding aid to reduce friction and help keep the workpiece cool during dry grinding. Macroreplicated abrasive bricks hold multiple layers of abrasive mineral, while channels between the bricks clear swarf and keep the contact surface cleaner throughout the cut. The result is a controlled, predictable mineral breakdown that produces consistent finishes from start to finish on a single belt.

This belt is sized at 72 inches in length and 2 inches in width, making it suitable for stationary and portable belt grinders used in metal fabrication, welding shops, and general industrial finishing operations. Its construction allows operators to grind and finish in a single operation in many applications, reducing belt changes and downtime. The aluminum oxide abrasive and grinding aid combination supports dry grinding on ferrous and non-ferrous metals. Licensed tradespeople and industrial finishing technicians are the typical installers and operators of this consumable.

Key Features

• Macroreplicated abrasive bricks with multiple mineral layers deliver extended cut life and consistent finish quality
• Channel design clears swarf from the work surface, reducing loading and keeping contact zones cleaner
• Controlled mineral breakdown produces predictable, repeatable surface finishes over the full belt life
• Grinding aid reduces friction and workpiece heat, supporting dry grinding applications
• X-weight cloth backing provides durability for medium-pressure operations
• Capable of grinding and finishing in one operation, lowering abrasive cost and inventory requirements

Compatibility

Designed for use on belt grinders and finishing machines that accept 72-inch by 2-inch abrasive belts. Suitable for intermediate to final finish applications on metal workpieces in medium-pressure dry grinding scenarios.

Installation Notes

Install on a belt grinder or finishing machine with matching 72-inch by 2-inch belt capacity, ensuring the machine is powered down and locked out before changing belts. Verify belt tracking and tension according to the machine manufacturer guidelines before resuming operation. Wear appropriate PPE including eye protection and gloves when handling and operating abrasive belts. Inspect the belt for tears or damage before each use and replace if wear is uneven or the backing shows signs of separation.