3M Cloth Belt 340D, 3 in x 24 in 50 X-weight, (5/Carton) Case of 25

• 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 exact model features a heavyweight cloth backing that stands up to high-production environments, ensuring long-lasting use.

Ideal for professionals, this belt is part of 3M’s premium line, offering reliable abrasive power for various sanding tasks. Its construction supports aggressive stock removal while maintaining belt integrity.

Precise 3 Inch Width

Measuring 3 inches wide by 24 inches long, this belt fits a range of sanding tools. The size makes it versatile for edge sanding and portable belt sanders, providing control and accuracy.

These dimensions allow the belt to be used effectively on wood and metal surfaces, making it suitable for detailed work or larger sanding projects where precision is key.

Durable 50 X-weight Backing

The 50 X-weight cloth backing offers extra strength and durability. This heavier backing supports the belt through tough sanding jobs and repeated use without tearing or wearing out quickly.

This backing also enables the belt to be washable, which helps maintain performance by removing resin or pitch buildup, especially when sanding soft woods like pine.

Open Coat Construction Benefits

This belt features an open coat design that improves cutting efficiency on all types of wood. It helps prevent loading, which means the abrasive stays cleaner and cuts faster for longer periods.

Open coat belts are particularly effective on soft woods, reducing clogging and extending belt life. This makes sanding smoother and more consistent across different materials.

Convenient Five Carton Pack

Sold in a case of 25 belts, with 5 belts per carton, this pack size supports high-volume users. It ensures you have enough belts on hand for continuous work without frequent reordering.

The pack format suits industrial settings where multiple belts are needed for wide belt sanding, edge sanding, or portable sanding tools, keeping operations efficient and uninterrupted.