3M 7100077328 Trizact 237AA Abrasive Belt 18x0.25 Inch

Product Description

The 3M 7100077328 is a Trizact 237AA abrasive belt designed for intermediate finishing and fine polishing applications. It uses 3M microreplication technology, where micron-graded aluminum oxide particles are formed into three-dimensional pyramids and bonded to an X-weight cloth backing. As the pyramids wear during use, fresh sharp mineral is continuously exposed, producing a consistent cut rate and predictable fine finish throughout the life of the belt. The flexible cloth backing conforms to contours, making this belt well suited for both hand and machine operations, including robotic finishing cells.

This belt is intended for metalworking environments where surface consistency and finish quality are critical before downstream processes such as plating or buffing. The 18-inch length and 1/4-inch width fit narrow-contact and detail finishing tools common in fabrication, aerospace, medical device, and precision machining shops. The gray color indicates the 237AA grade within the Trizact product line. Technicians and machinists working on tight-tolerance parts benefit from the repeatable finish the microreplication structure delivers run after run.

Key Features

• Microreplication technology forms aluminum oxide into self-sharpening pyramids that expose fresh mineral as they wear
• Runs cooler than conventional coated abrasives, reducing heat buildup on workpieces
• Flexible X-weight cloth backing conforms to contoured surfaces for consistent finish
• Three-dimensional abrasive design produces repeatable results in robotic and automated applications
• Suited for intermediate finishing and fine polishing prior to plating or buffing
• Produces finer finishes than conventional electrostatically coated abrasive belts

Compatibility

Designed as a replacement or production belt for narrow-contact abrasive belt tools and robotic finishing systems that accept an 18-inch length by 1/4-inch width belt configuration.

Installation Notes

Installation should be performed by a qualified machinist or abrasive finishing technician. Power down and lock out the belt grinder or finishing tool before changing belts. Verify belt tracking and tension per the tool manufacturer specifications before resuming operation. Inspect the belt for tears or damage before each use.

Technical Specifications

• Belt Length: 18 inches
• Belt Width: 0.25 inches
• Abrasive Material: Aluminum Oxide
• Backing Material: X-Weight Cloth
• Abrasive Grade Series: 237AA
• Color: Gray
• Unit of Measure: Each
• Weight: 0.01 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100077328