3M Cloth Belt 340D, 80 X-weight, 37 in x 60 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, making it a reliable choice for demanding sanding tasks.

Its premium aluminum oxide abrasive grains provide a fast cut rate and long life. This belt is ideal for professionals who need consistent results with the 3M brand's trusted quality.

Precise 80 X-Weight Grade

This belt comes in an 80 X-weight grade, offering a balance between aggressive stock removal and smooth finishing. The grade ensures efficient sanding on a variety of materials without sacrificing control.

Users can expect this grade to perform well on both wood and metal surfaces, making it versatile for different projects and sanding applications.

Generous 37 Inch Size

The belt measures 37 inches by 60 inches, providing ample surface area for wide belt sanding tasks. This size fits many industrial belt sanders, allowing for efficient processing of large panels or metal sheets.

Its dimensions also make it suitable for edge sanding and portable belt sanding, offering flexibility across various sanding tools and setups.

Film-lok Single-flex Format

The Film-lok technology in this belt ensures a secure splice that minimizes chatter marks and delivers smooth operation. The single-flex design allows the belt to bend easily around contact wheels without damage.

This format supports consistent finishing results and extends the belt’s service life, especially in applications requiring frequent belt flexing or washing.

Convenient Case Pack Count

This product is sold as a case of 3 belts, providing a practical quantity for ongoing sanding needs. Having multiple belts on hand reduces downtime and keeps projects moving efficiently.

The case pack is ideal for workshops or production environments where replacement belts are needed regularly, ensuring users always have the right belt ready.