3M Cloth Belt 340D, 80 X-weight, 50 in x 103 in, Film-lok, Single-flex, Case of 3

• 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 is designed for durability and performance. This model features a heavyweight cloth backing that stands up well in high-production environments, ensuring long-lasting use.

Ideal for demanding tasks, the 340D belt is a premium grade abrasive that balances toughness with consistent cutting ability. Its 80 X-weight grade suits a variety of sanding jobs.

Precise Size And Format

This belt measures 50 inches by 103 inches, providing ample surface area for wide belt sanding applications. Its size fits many industrial belt sanders, making it versatile for different projects.

Sold as a case of 3, this pack count supports continuous work without frequent reordering. The single-flex design allows smooth operation on various sanding tools.

Effective Film-lok Technology

The Film-lok system in this belt ensures a secure splice that minimizes chatter marks during sanding. This technology helps maintain a smooth running belt for consistent finishing results.

Film-lok splices also reduce downtime by providing a reliable joint that withstands pressure, making the belt suitable for both wood and metal sanding tasks.

Durable Aluminum Oxide Abrasive

Featuring premium aluminum oxide grains, this belt offers a fast cut rate and extended abrasive life. The resin bond construction holds the grains firmly, resisting heat and pressure.

This abrasive mineral is popular for its versatility, working well on wood, metal, and ferrous alloys. It’s a dependable choice for industrial sanding needs.

Wide Application Versatility

The 3M Cloth Belt 340D is suitable for wide belt sanding, edge sanding, and portable belt sanding. Its open coat design helps prevent loading, especially on soft woods like pine.

Thanks to its washable backing, the belt can be cleaned and reused, extending its service life in high-loading environments. This makes it practical for repeated use in production settings.