3M 7010307902 Trizact 217EA Abrasive Belt 118x4 Inch Ao

Product Description

The 3M 7010307902 is a Trizact 217EA coated abrasive belt designed for intermediate finishing and fine polishing on metal and composite surfaces. It uses 3M microreplication technology, in which micron-graded aluminum oxide particles are formed into uniform pyramidal structures bonded to a JE-weight rayon cloth backing. As the pyramids wear during use, fresh, sharp mineral is continuously exposed, delivering a consistent cut rate and predictable finish throughout the belt's service life. The belt measures 118 inches in length and 4 inches in width. It is used by metal fabricators, aerospace finishers, and industrial grinding technicians in both manual and automated setups.

This belt is suited for light to moderate pressure finishing operations where controlled stock removal and surface consistency are required. The flexible rayon backing conforms to contoured and irregular workpiece profiles, making it effective on curved or complex geometry. It is particularly well matched to robotic and automated finishing cells where process repeatability is critical. Typical applications include pre-plate finishing, pre-buff polishing, and surface preparation on ferrous and non-ferrous metals. A built-in grinding aid helps manage heat generation, reducing the risk of heat-related workpiece warping or discoloration during extended runs.

Key Features

• Microreplicated aluminum oxide pyramids continuously expose fresh mineral as they wear, maintaining consistent cut rate over belt life
• JE-weight rayon cloth backing conforms to contoured and curved surfaces for uniform finish results
• Suited for robotic and automated finishing applications where repeatability is essential
• Grinding aid reduces heat buildup to help prevent workpiece warping and discoloration
• Produces finer surface finishes than conventional coated abrasive belts of comparable grit
• Designed for intermediate finishing and fine polishing prior to plating or buffing operations

Compatibility

Designed for use on belt grinders and finishing machines that accept 118-inch by 4-inch abrasive belts; suitable for metal fabrication, aerospace, and industrial finishing applications requiring controlled, fine surface finishes.

Installation Notes

Installation and tensioning of abrasive belts should be performed by qualified personnel following the machine manufacturer's guidelines. Power down and lock out the belt grinder before mounting or removing the belt. Verify that belt tracking and tension are set correctly before resuming operation to prevent belt walk or premature failure. Inspect the belt for tears or delamination before each use and replace if damage is present.

Technical Specifications

• Length: 118 inches
• Width: 4 inches
• Abrasive Mineral: Aluminum Oxide
• Backing Material: JE-Weight Rayon Cloth
• Abrasive Technology: Microreplication
• Color: Tan
• Weight: 0.54 pounds
• UOM: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010307902