3M Cloth Belt 340D, P150 X-weight, 43 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 a heavyweight cloth backing that stands up to high-production environments, ensuring long-lasting use. Its premium aluminum oxide abrasive grains deliver fast cutting and consistent results.

Ideal for aggressive stock removal, the 340D belt resists loading and works well on both wood and metal. The case of 5 belts provides convenience and value for frequent sanding tasks.

Precise P150 X-weight Grade

This belt comes in the P150 X-weight grade, offering a balanced cut rate suitable for a variety of sanding applications. The open coat construction helps prevent loading, especially when working with soft woods, maintaining efficiency throughout use.

Users can rely on this grade for edge sanding or portable belt sanding, where consistent abrasive performance is critical. The P150 grit ensures smooth finishes without sacrificing material removal speed.

Generous 43 Inch Length

Measuring 43 inches by 75 inches, this belt fits a wide range of sanding machines. The size supports use on wide belt sanders for dimensioning wood panels or smoothing metal edges, making it versatile for many industrial tasks.

The length and width also accommodate edge sanders and portable belt sanders, allowing users to handle flat surfaces and narrow edges with ease. This dimension ensures compatibility with common sanding equipment.

Film-lok Single-flex Technology

The Film-lok splice technology creates a secure bond that minimizes chatter marks and ensures smooth belt operation. This single-flex design helps maintain consistent finishing results by reducing vibration and improving belt tracking.

Such construction is especially beneficial when sanding delicate surfaces or when a flawless finish is required. The Film-lok splice also enhances the belt’s durability during repeated use.

Convenient Case Pack Count

Sold as a case of 5 belts, this pack size supports ongoing production needs without frequent reordering. Having multiple belts on hand reduces downtime and keeps projects moving efficiently.

The case format is practical for workshops and industrial settings where sanding is a regular task. It ensures users have the right belt ready for various sanding tools and applications.