3M™ Cloth Belt 340D

3M Product Number 340D

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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

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

Overall Length (Imperial)

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Overall Width (Imperial)

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75 Products Available

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Overall Length (Imperial) and Overall Width (Imperial)

Specifications

Attribute Name	Value
Abrasive Material	Aluminum Oxide
Alternative Sale Availability	6. This item is for industrial use only and there are no VOC restrictions.
Application	Sanding
Back Color	Brown
Backing Material	Cloth
Backing Weight	X Weight
Brand	3M™
CA Metalworking Solutions Level 2	Deburring & Surface Conditioning, Frame Building and Panel Bonding
Coat Type	Open Coat
Color Family	Brown
Equipment - Machines	Edge Sanders, Mould Sanders, Portable Belt Sanders, Profile Sanders, Wide Belt Sanders
Flex Type	Single-flex
For Use On	Softwood
Grit	50, 60, 80, P100, P120, P150, P180, P220
Industries	Woodworking
Market	Facilities Management
Overall Length (Imperial)	103 in, 108 in, 132 in, 18 in, 21 in, 21.75 in, 24 in, 48 in, 60 in, 75 in, 80 in, 89 in
Overall Length (Metric)	1219.2 mm, 1524 mm, 1905 mm, 191 cm, 2032 mm, 2260.6 mm, 2616.2 mm, 2743.2 mm, 3352.8 mm, 457.2 mm, 533.4 mm, 552.45 mm, 609.6 mm
Overall Width (Imperial)	2.25 in, 3 in, 36 in, 37 in, 4 in, 43 in, 50 in, 52 in, 6 in
Overall Width (Metric)	101.6 mm, 1092.2 mm, 1270 mm, 1320.8 mm, 152.4 mm, 57.15 mm, 76.2 mm, 914.4 mm, 939.8 mm
Product Color	Brown
Product Form	Belt
Segment	Maintenance
Splice Type	Fabri-lok, Film-lok, Sine Wave, Sine-lok
Substrate	Softwood

Details

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

3M™ Cloth Belt 340D is our 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. We recommended this belt for wide belt sanding, edge sanding, or portable belt sanding.

Good for Sanding Soft Woods
Fast-cutting aluminum oxide abrasive grains are resin-bonded to a durable X-weight 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.

Available in a Range of Sizes and Splices
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.

Resources

Catalogs

3M™ Industrial Products for Woodworking Catalog (PDF, 20.6MB)

Posters

3M™ Woodworking Abrasive Belt Portfolio (Poster) (PDF, 2.6MB)

Safety Data Sheets

Safety Inserts

3M™ Coated Abrasive Belts and Scotch-Brite™ Surface Conditioning Belts (PDF, 483.6KB)

Customer Reviews

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.