3M Cloth Belt 340D, 80 X-weight, 3 in x 24 in, Film-lok, Single-flex, Case of 50

• 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 high performance. This model features a heavyweight cloth backing that stands up well in demanding, high-production environments, ensuring long-lasting use.

Its premium aluminum oxide abrasive grains provide a fast cut rate, making it ideal for aggressive stock removal. The 3 in x 24 in size fits many common belt sanders, offering versatility for various tasks.

Effective Open Coat Design

This 80 X-weight belt uses an open coat construction that helps prevent loading by allowing debris to escape. This feature improves cutting efficiency, especially on soft woods where clogging can be a problem.

Open coat belts like this one are perfect for woodworking applications such as wide belt sanding and edge sanding, where maintaining a clean abrasive surface is essential for consistent results.

Durable Resin Bond Construction

The belt’s resin bond construction is built to withstand high heat and pressure, extending its service life. This makes the 3M Cloth Belt 340D reliable for tough sanding jobs on both wood and metal.

Resin bonding also ensures the abrasive grains stay firmly attached during use, providing consistent cutting performance over time and reducing the need for frequent belt changes.

Washable Backing Feature

The washable backing on this belt allows it to be cleaned and reused, which is especially useful when sanding high-loading materials like pine. This feature helps maintain belt performance and reduces replacement costs.

Repeated washing removes resin or pitch buildup, making the belt suitable for continuous use in busy workshops or production lines where downtime needs to be minimized.

Convenient Case Pack Count

This product comes as a case of 50 belts, providing a ready supply for industrial or professional use. Having a large pack ensures you won’t run out during critical projects and supports efficient workflow.

The 3 in x 24 in belt size fits many portable and stationary belt sanders, making this case a practical choice for various sanding applications across woodworking and metalworking tasks.