3M 7000000322 Lapping Film 261X 30.0 Micron 4x150ft Roll

Product Description

The 3M 7000000322 is a precision lapping film designed for controlled material removal and surface finishing across a range of substrates. Built on the 261X platform, it uses precisely graded aluminum oxide abrasive particles coated onto a 3 mil polyester film backing. The 30.0 micron grade targets applications requiring aggressive stock removal while still producing a uniform finish. This roll format measures 4 inches wide by 150 feet long with a 3-inch ASO keyed core, making it compatible with automated and machine-fed finishing systems. Technicians in fiber optic termination, precision tool finishing, and component lapping specify this film for its consistent cut rate and repeatable surface quality.

This lapping film is suited for professional and industrial finishing applications where surface consistency is critical. Common uses include fiber optic connector end-face polishing, precision optical component finishing, and fine surface preparation on metal, ceramic, and composite substrates. The roll format supports high-volume production environments as well as bench-mounted finishing setups. It is typically used by skilled technicians and tradespeople working in telecommunications, electronics manufacturing, and precision machining.

Key Features

• Precisely graded aluminum oxide abrasive particles for uniform, repeatable finishes
• 30.0 micron grade suited for aggressive lapping and stock removal stages
• 3 mil polyester film backing provides dimensional stability during use
• 4-inch width by 150-foot roll length supports extended production runs
• 3-inch ASO keyed core designed for machine and automated finishing equipment compatibility
• Available in multiple micron grades for multi-stage finishing sequences

Compatibility

Designed for use with finishing and lapping equipment accepting a 3-inch ASO keyed core. Suitable for multi-stage lapping sequences alongside other 261X series grades including 0.30, 3.0, 5.0, 9.0, and 12.0 micron variants.

Installation Notes

Load the roll onto equipment with a compatible 3-inch ASO keyed core spindle before beginning any finishing operation. Ensure the workpiece holder and film path are clean and free of debris that could cause scratching or uneven wear. Follow equipment manufacturer guidelines for film tension and feed rate to maintain consistent surface finish results. Dispose of used lapping film sections according to applicable facility waste-handling procedures.

Technical Specifications

• Series: 261X
• Abrasive Type: Aluminum Oxide
• Micron Grade: 30.0 micron
• Backing Material: 3 mil Polyester Film
• Roll Width: 4 inches
• Roll Length: 150 feet
• Core Size: 3 inches ASO Keyed
• Unit of Measure: Roll
• Minimum Order Quantity: 4
• Weight: 2.75 pounds
• UPC: 00051144140558

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000000322