3M Cloth Belt 340D, P120 X-weight, 37 in x 60 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.

3M Cloth Belt Model

The 3M Cloth Belt 340D is designed for demanding sanding tasks. This model offers a heavyweight cloth backing that ensures durability in high-production environments, making it a reliable choice for professionals.

Its construction supports aggressive stock removal and resists loading, which helps maintain performance over time. The belt is ideal for various sanding applications, including wide belt and edge sanding.

Grade And Weight Benefits

This belt features a P120 X-weight grade, providing a balance between cutting speed and finish quality. The premium aluminum oxide abrasive grains deliver fast cutting and long-lasting performance.

Open coat construction improves cutting efficiency on all woods by preventing clogging. This makes the belt especially effective for sanding soft woods and other materials.

Dimensions And Size

Measuring 37 inches by 60 inches, this belt fits a variety of sanding tools. The size is suitable for wide belt sanders, edge sanders, and portable belt sanders, offering versatility in different workshop setups.

Its length and width allow for smooth sanding of wood panels, metal sheets, and narrow surfaces like panel edges, making it a practical choice for many industrial tasks.

Film-lok Splice Technology

The Film-lok splice system ensures a secure bond between belt ends, minimizing chatter marks during sanding. This technology helps maintain a smooth running belt and consistent finishing results.

By reducing vibrations and joint weaknesses, the Film-lok splice extends the belt's service life and improves the quality of the sanding process across various materials.

Case Pack And Format

This product comes as a case of 5 belts, providing convenience and value for high-use environments. The single-flex format allows the belt to bend easily around sanding wheels without cracking.

The washable backing supports repeated use, especially on high-loading substrates like pine, making it suitable for continuous production settings where belts require cleaning.