3M Cloth Belt 340D, 80 X-weight, 6 in x 132 in, Film-lok, Single-flex, Case of 20

• Heavyweight cloth backing provides durability for high-production environments
• Open coat construction provides improved cut on all woods and helps prevent loading
• Premium aluminum oxide offers increased cut-rate and abrasive life
• Resin bond construction withstands high heat and pressure for longer service life
• Washable backing enables repeated use on high-loading substrates such as pine

3M Cloth Belt 340D is an open coat premium grade aluminum oxide cloth belt that provides durability for aggressive stock removal, resists loading, and is suitable for a variety of applications on wood and metal. This belt is recommended for wide belt sanding, edge sanding, or portable belt sanding.

Fast-cutting aluminum oxide abrasive grains are resin-bonded to a durable cotton cloth backing to provide continuous cut and long-life. Our open coat and load-resistant coating make this belt particularly favorable for sanding soft woods. Additionally, the washable backing is suitable for high production environments where the belt may need washing at intervals to remove soft wood resin or pitch buildup.

Aluminum oxide mineral is a popular choice among industrial professionals because of its cut-rate, durability, and long life. It can be used on a wide variety of materials in both woodworking and metalworking, including ferrous alloys, and is the most commonly used industrial abrasive. The abrasive particles are adhered to the cloth backing with resin, creating a strong bond that withstands high heat and pressure.

Abrasive belts come in many different widths and lengths and are used on a variety of different belt sanding tools for many different applications on both wood and metal. At 3M we offer a broad selection of belts to fit most any industrial belt sander. Wider belts are used with wide belt sanders to dimension or finish wood panels, smooth rough cut edges of metal sheets, or add a grain pattern to stainless steel sheets. Medium-width belts fit onto edge sanders for sanding flat, narrow surfaces such as panel edges; and narrow belts are used with portable belt sanders for sanding or blending wood pieces such as cabinet doors.

Belts come with various splices that join the belt ends. A film media splice achieves a secure bond with a joining film that minimizes chatter marks, ensures a smooth running belt, and produces consistent finishing results. A sine wave splice is constructed of interlocking fingers that enable the splice to travel smoothly over contact wheels, reduce hinging, and provide added strength to the joint area. Sine wave splices are typically used for coarser grades and wide belts as well as on belts that are going to be washed.

Trusted 3M Cloth Belt

The 3M Cloth Belt 340D offers a dependable sanding solution with its heavyweight cloth backing. This backing ensures durability, making it ideal for high-production environments where wear resistance is crucial. The 340D model is designed to handle tough sanding tasks efficiently.

Its premium aluminum oxide abrasive grains provide a fast cut rate and long life. This belt is perfect for professionals who need consistent performance on both wood and metal surfaces, maintaining quality through extended use.

Precise 80 X-weight Grade

This belt features an 80 X-weight grade, which balances aggressive stock removal with smooth finishing. The grade is suitable for a variety of applications, delivering reliable sanding results without compromising the surface quality.

Users can apply this grade on wide belt sanders or edge sanders, making it versatile for different woodworking and metalworking projects. The 80 X-weight ensures efficient material removal while preserving the integrity of the workpiece.

Optimal 6 Inch Dimensions

Measuring 6 inches by 132 inches, this belt fits a range of sanding tools, including portable and wide belt sanders. The size supports both broad surface sanding and detailed edge work, adapting to various project needs.

The length of 132 inches allows for extended use before replacement, reducing downtime. This dimension is common in industrial settings, ensuring compatibility with many standard sanding machines.

Film-lok Single-flex Format

The Film-lok technology in this belt provides a secure splice that minimizes chatter marks during sanding. This single-flex design ensures smooth operation and consistent finishing results across different materials.

This format is especially useful for wide belts, where a stable splice reduces wear and tear. It also supports washing, which helps maintain belt performance by removing resin or pitch buildup.

Convenient Case Pack Count

Sold as a case of 20 belts, this pack size is ideal for high-volume users who require a steady supply of sanding belts. Having multiple belts on hand reduces interruptions in production and ensures readiness for various projects.

The case format supports efficient inventory management and cost savings. It’s a practical choice for workshops and industrial settings where frequent belt changes are necessary.