3M Cloth Belt 340D, P220 X-weight, 37 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 is designed for durability and performance. This model features heavyweight cloth backing that stands up to high-production environments, ensuring long-lasting use. Its premium aluminum oxide abrasive grains provide a fast cut rate, making it ideal for tough sanding jobs.

Recommended for various sanding tasks, this belt suits wide belt sanding, edge sanding, and portable belt sanding. The P220 X-weight grade balances aggressive stock removal with smooth finishes, making it versatile for many projects.

Durable Heavyweight Backing

This belt’s heavyweight cloth backing offers exceptional durability, perfect for demanding industrial use. The backing is washable, allowing repeated use even when sanding high-loading substrates like pine, which helps maintain performance over time.

Its single-flex design supports flexibility without sacrificing strength, making it suitable for different sanding tools. The 37 in x 75 in size fits a range of belt sanders, providing convenience and compatibility for various applications.

Open Coat Construction Benefits

The open coat construction of the 3M Cloth Belt 340D helps prevent loading by allowing dust and debris to escape during sanding. This feature improves cutting efficiency on all types of wood, especially soft woods, by reducing clogging and maintaining abrasive sharpness.

This design also contributes to longer belt life and consistent finishing results. The Film-lok technology used in the belt’s splice ensures a smooth running belt with minimal chatter marks, enhancing the quality of your work.

Premium Aluminum Oxide Abrasive

Equipped with premium aluminum oxide, this belt offers increased cut rate and abrasive life. Aluminum oxide is a popular industrial abrasive known for its durability and ability to work on both wood and metal surfaces, including ferrous alloys.

The resin bond construction secures the abrasive grains firmly to the cloth backing, allowing the belt to withstand high heat and pressure during sanding. This makes it reliable for heavy-duty applications and extended use.

Convenient Case Pack Count

This product comes as a case of 5 belts, providing value and convenience for professionals who need multiple belts on hand. Having a pack ensures you can quickly replace worn belts without downtime, keeping your workflow efficient.

The 37 in x 75 in dimensions make these belts compatible with a variety of industrial belt sanders. Whether you’re working on wide belt sanding or portable belt sanding, this pack size supports continuous operation.