3M 7000044813 Aluminum Oxide Lapping Film Disc 8 Inch

Product Description

The 3M 7000044813 is an 8-inch diameter aluminum oxide lapping film disc designed for precision surface finishing across a wide range of substrates. Precisely graded aluminum oxide particles are coated onto a 3-mil polyester film backing, delivering tight particle size distribution and consistent cut rates from one disc to the next. This disc is part of 3M's standard lapping film line, available in 0.30, 3.0, 5.0, 9.0, 12.0, and 30.0 micron grades to match the specific finish requirement. Machinists, optical technicians, and precision finishing specialists use these discs where repeatability and surface uniformity are critical.

This lapping film disc suits applications in precision grinding, optical component finishing, fiber optic connector polishing, and fine surface preparation on metals, ceramics, composites, and similar substrates. The polyester film backing provides dimensional stability during wet or dry use. The 8-inch disc format fits standard lapping machines and rotary finishing equipment found in production and repair shop environments.

Key Features

• Precisely graded aluminum oxide abrasive particles for tight particle distribution
• 3-mil polyester film backing provides a stable, consistent cutting surface
• Delivers uniform finishes across metals, ceramics, composites, and other substrates
• Available in multiple micron grades: 0.30, 3.0, 5.0, 9.0, 12.0, and 30.0 micron
• Consistent cut rate and disc life reduce variability between passes

Compatibility

Designed as an OEM-style replacement lapping film disc for standard 8-inch rotary lapping and surface finishing equipment used in precision machining, optical, and fiber optic applications.

Installation Notes

Mount the disc onto the lapping plate or backing pad of the finishing machine before powering on equipment. Ensure the machine platen is clean and free of debris before seating the disc to avoid surface irregularities. Follow the equipment manufacturer's guidelines for pressure and rotational speed appropriate to the selected micron grade. Operators should wear appropriate PPE when handling abrasive media.

Technical Specifications

• Diameter: 8 inches
• Abrasive Type: Aluminum Oxide
• Backing: 3-mil Polyester Film
• Available Micron Grades: 0.30, 3.0, 5.0, 9.0, 12.0, 30.0 micron
• Unit of Measure: Each
• Weight: 0.01 pounds
• Package Dimensions: 9 inches x 9 inches x 6.7 inches
• UPC: 00051111497661

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044813