1. The roller brush is made of wear-resistant nylon wire arranged in a spiral shape along the shaft, free from material and scale. Especially suitable for cleaning old belt with uneven surface and belt with mechanical joint; 2. Continuous contact of the cleaning point when cleaner works, makes the cleaning force strong and cleaning effect good; 3. Safe and reliable, low failure rate, long service life, low maintenance cost; 4. Suitable for the conveyance of all kinds of materials, such as coal, coke, sinter, salt, iron ore and fertilizer, and widely applied in thermal power plants, iron and steel plants, cement plants, fertilizer plants, coking plants, coal cleaning plants, coal mines, petrochemical plants, mining, paper mills, chemical plants, terminal transfer stations and other industries.