3M Cloth Belt 340D, 80 X-weight, 43 in x 75 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.

Its 80 X-weight grade offers a balance of strength and flexibility, making it suitable for demanding sanding tasks. This belt is ideal for professionals seeking reliable abrasive tools.

Precise Size And Format

This belt measures 43 inches by 75 inches, providing ample surface area for wide belt sanding applications. The size fits a variety of belt sanding tools, making it versatile for different projects.

It comes in a case of 3, giving you multiple belts ready for use or replacement. The single-flex format allows smooth operation on portable and edge sanders alike.

Effective Film-lok Technology

The Film-lok system used in this belt ensures a secure splice with a joining film that reduces chatter marks. This technology helps the belt run smoothly and delivers consistent finishing results.

Film-lok splices are especially beneficial for maintaining belt integrity during heavy use, making this belt a dependable choice for both wood and metal sanding tasks.

Durable Aluminum Oxide Abrasive

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

This abrasive type works well on a variety of materials, including wood and ferrous metals, making it a versatile option for many industrial applications.

Washable Backing For Reuse

The washable backing on this 3M belt allows it to be cleaned and reused, especially useful when sanding soft woods like pine that can cause loading. This feature extends the belt’s service life.

Repeated washing helps maintain performance in high-production settings, reducing downtime and saving costs by keeping the belt effective over multiple uses.