3M™ Cloth Belt 340D, 80 X-weight, 4 in x 21-3/4 in, Film-lok, Single-flex, 50 ea/Case

$4.28 / Each

SKU	7100231080
Legacy SKU	60440600579
Product Number	340D

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.

Premium aluminum oxide offers increased cut-rate and abrasive life
Open coat construction provides improved cut on all woods and helps prevent loading
Heavyweight cloth backing provides durability for high-production environments
Washable backing enables repeated use on high-loading substrates such as pine
Resin bond construction withstands high heat and pressure for longer service life

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High-Quality Cloth Belt Materials

Durable

Versatile

Multi-Functional

Product Dimensions	Imperial	Metric
Weight	1.143 lbs
Width	3.8748 in
Length	4-1/4 in
Height	10-1/2 in

Shipping Dimensions
Weight	6.397 lb
Length	20.5 in
Width	11.3 in
Height	4.5 in

Color	Brown

PRODUCT FAQ

What is the 3M™ Cloth Belt 340D made of?

The 3M™ Cloth Belt 340D is made of aluminum oxide mineral abrasive, X-weight cloth backing, and a resin bond system.
How many belts come in a case for the 4 in x 21-3/4 in size?

Each case includes fifty (50) pieces or belts.
What type of applications is this belt suitable for?

This belt is suitable for grinding, blending and deburring on metal surfaces.
Can I use this belt with both portable and bench machines?

Yes! You can use it with any compatible backstand, file belt machine or inline sander, as well as stationary bench-top machines such as pedestal grinders or disc sanders that utilize coated abrasive products.
. How does Film-lok work?

. Film-lok enhances cut-rate by allowing vacuum-generated airflow to pull dust away from the surface during grinding; creating an efficient cutting environment while maintaining excellent visibility throughout the process.

For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.

Product Description:

3M's abrasive belts are made with fast-cutting aluminum oxide abrasive grains that are resin-bonded to a durable cotton cloth backing. This combination provides continuous cut and long-life. The 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:

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:

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. 3M offers 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.

Splices:

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.