3M Cloth Belt 340D, P100 X-weight, 43 in x 75 in, Film-lok, Single-flex, Case of 5

• 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 reliable performance with its heavyweight cloth backing. This backing ensures durability, making it suitable for high-production environments where lasting abrasion is essential. The model 340D is designed to handle tough sanding tasks efficiently.

Ideal for professionals, this belt combines the trusted 3M brand quality with a P100 X-weight grade. It’s perfect for demanding applications that require consistent results and long-lasting materials.

Precise Size And Format

This sanding belt measures 43 inches by 75 inches, providing ample surface area for wide belt sanding tasks. Its size fits a variety of sanding machines, making it versatile for different woodworking and metalworking projects.

The belt features Film-lok technology and a single-flex format, which help ensure smooth operation and reduce chatter during use. These features contribute to a consistent finish on all surfaces.

Durable Grade And Backing

The P100 X-weight grade indicates a premium aluminum oxide abrasive that cuts aggressively while maintaining long life. The heavyweight cloth backing supports this by resisting wear and tear in tough sanding conditions.

This combination is especially effective for sanding soft woods and metals, as the open coat construction prevents loading and keeps the belt working efficiently over time.

Versatile Application Uses

The 3M Cloth Belt 340D is suitable for wide belt sanding, edge sanding, and portable belt sanding. Its design allows it to handle various materials, including wood and metal, making it a flexible choice for many industrial tasks.

Whether smoothing rough edges or finishing panels, this belt adapts well to different sanding tools and projects, providing consistent performance across applications.

Convenient Pack And Care

This product comes as a case of 5 belts, offering value and convenience for ongoing sanding needs. Having multiple belts on hand reduces downtime and keeps projects moving smoothly.

The washable backing allows repeated use by removing resin or pitch buildup, especially when working with high-loading substrates like pine. This feature extends the belt’s service life and maintains cutting efficiency.