Bargain Box of 30 - 4 in. x Sanding Belts - Various Grits

Bargain Box of 30 - 4 inch x 21 inch Sanding Belts - Various Grits

Every grit you could need is included in this bargain box of Klingspor industrial sanding belts.

At this low price you would think these are cheapo belts that will not hold up under normal sanding pressure. Wrong. These are the same premium quality, heavy cloth backed, butt joined, resin coated, aluminum oxide belts we sell individually.

Each box contains 6 sleeves of 5 belts in the following grits:

• 1 sleeve 50-60 coarse
• 2 sleeves 80-100 medium
• 2 sleeves 120-150 med - fine
• 1 sleeve 180-240 fine

These are Premium Abrasive Belts.

They are suitable for use on all ferrous metals, hardwoods, leather, aluminum, brass, bronze, stainless steel, and most alloys. You would use these belts where clogging or loading are a potential problem.

Specifications:

• Aluminum Oxide (blocky, hard grain)
• X-weight (a heavy, stiff Egyptian cotton cloth)
• Open Coat
• Resin to Resin bonded
• Anti-static to resist loading
• Sold per belt

Aluminum Oxide AO is formed by combining bauxite and other materials by firing them in an electric furnace. The resultant mass is then crushed, and the pieces sifted through successively finer screens to assign a grit size (CAMI grading). When crushed, the resulting pieces are naturally pyramidal in shape. Due to the shape and the strength of the materials used in its making, AO is a very durable grain. The grain is worn down during use, sanding finer the longer it's used. Users take advantage of this characteristic by using the belts on more than one machine or application. For instance if you have two wide belt machines doing intermediate and finish sanding respectively, you may use a 120 belt on the first machine to do your intermediate sanding, and when the cut for that application is no longer as sharp, the belt can be moved to the machine and used there till the cut for that application is no longer sufficient. This ensures you get the most production and the full value for the belt you purchased.

AO is very tough and durable, as stated above, and is used on bare wood, most metals (especially the steels), leather and a wide variety of other materials. It is a great general purposes grain and probably the most, common grain seen today.

Cloth Backing There are 3 basic weights of cloth backings: J, X and Y. J and X are cotton materials. The J has a slight degree of conformability to it and should be used where a small degree of conformability to the workpiece is needed in belts or sheets. The X is heavier weight cotton and is an all-purpose/general purpose backing used in a wide variety of belting applications including portable belts, intermediate belts and wide belts. Y backings are 100% polyester (or in some cases a 60/40 poly/cotton split) and are used for flat, heavy duty dimensioning or other high heat or rough applications. The J and X weight backings have flexed versions available that are referred to as J-Flex (JF) and X-Flex (XF). These would be suitable for applications where the X or J is not quite flexible enough. The most common uses for JF backings are as pump sleeves and for mold sanding belts. The XF backings are used mainly for slack of belt operations. The Y backings are not flexed but come in a lightweight poly (YX) and a heavy weight poly (Y or YY). Normally 24-50 or 60 grits will be the heavier poly backing and the 80-120 will be the lighter poly backing.