3M 7000028106 Microfinishing Film Roll 30 Micron 8x150ft

Product Description

The 3M 7000028106 is a microfinishing film roll designed for precision finishing of cylindrical surfaces in demanding machining and grinding applications. Aluminum oxide abrasive grain is resin bonded to a 5 mil polyester film backing, delivering consistent cut and finish control across the full roll length. The backing incorporates a friction grip coating that reduces slip during operation, keeping the film stable against the workpiece. At 30 micron grade, this roll is suited for fine-finishing stages where tight surface tolerances are required. It is sized at 8 inches wide by 150 feet long with a 3-inch keyed core and weighs 7 pounds.

This microfinishing film roll is used in precision cylindrical grinding and finishing operations, most commonly in automotive and industrial machine shops. Typical applications include finishing camshafts, crankshafts, and similar round or journal surfaces where surface finish consistency directly affects part performance. The keyed core design is compatible with film finishing equipment that accepts a 3-inch keyed spindle. It is sold in roll form and intended for professional machine operators and finishing technicians working with lapping film equipment.

Key Features

• 30 micron aluminum oxide abrasive for fine, controlled material removal
• Resin bonded grain on a 5 mil polyester film backing for dimensional stability
• Friction grip backing coating reduces slippage during use
• Keyed 3-inch core for secure mounting on compatible film finishing equipment
• 150-foot roll length minimizes changeover frequency in production environments
• Designed for precision cylindrical surface finishing including camshafts and crankshafts

Compatibility

Designed for use with film finishing equipment that accepts an 8-inch wide roll on a 3-inch keyed core spindle. Typical applications include automotive camshaft and crankshaft finishing operations.

Installation Notes

Installation and operation of microfinishing film rolls should be performed by qualified machine operators familiar with film finishing or lapping equipment. Ensure the machine is fully powered down and all rotating components have stopped before loading or changing the roll. Verify the keyed core seats securely on the spindle before resuming operation. Follow the equipment manufacturer guidelines for feed rate, contact pressure, and coolant use to avoid film distortion or premature wear.

Technical Specifications

• Abrasive Material: Aluminum Oxide
• Micron Grade: 30 Micron
• Backing: 5 mil Polyester Film
• Backing Coating: Friction Grip
• Width: 8 inches
• Length: 150 feet
• Core Size: 3 inches Keyed
• Weight: 7 pounds
• Unit of Measure: Roll
• UPC: 00051144801381

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000028106