3M Sanding Belts for Stock Removal, Fine Grinding and Finishing

Cubitron and Cubitron II belts are used for grinding tasks that require stock removal; the exact grain and backing depend on the product. Trizact belts have structured abrasive layers that expose fresh particles during use and support a consistent surface finish. 3M nonwoven belts use an open fibre structure for blending, fine finishing and surface finishing. Choose according to the starting condition, material and desired result. A nonwoven belt does not automatically replace a stock-removal step with a cloth sanding belt.

No. P grades, Trizact A grades and the plus designation for precision-shaped Cubitron II grain belong to different systems. 3M documents assign plus grades empirically to familiar grit ranges; this does not establish general equivalence of the resulting finishes. Compare the specific product specification and test the result on the workpiece. Backing, pressure and the process target matter alongside the number printed on the belt.

Provide the material and workpiece geometry, its condition before grinding, the required stock removal or target finish, and the machine in use. Belt width and length must fit the machine. The product currently used and the specific issue—such as low stock removal, an unsuitable scratch pattern or short belt life—also help. These details support a technical shortlist; suitability must be checked under the actual operating conditions.

For suitable coated abrasives, Krückemeyer GmbH checks belt size, running direction and splice against the material and machine. The confirmed manufacturing range for sanding belts is 6–610 mm in width and 283–16,500 mm in length; the extremes cannot be combined arbitrarily. The splice is matched to the specification, and tensile strength is checked on samples from each batch. Tell us the source product and machine details so feasibility can be reviewed for your application.