Roller, also known as a roller, is a cylindrical part, driven and driven roller. It is widely used in various transmission systems such as round screen printing machine, digital printer, mine conveying equipment, papermaking and packaging machinery. It is usually made of seamless steel tube, and it is necessary to adopt such as aluminum alloy 6061T5, 304L / 316L stainless steel, 2205 duplex stainless steel, steel casting, solid forging alloy steel core as material. The rollers are mainly composed of rollers, initial static balance, shaft overturning assembly welding, fine car and fine balance, etc. If the tolerance of shape is like roundness, the cylinder and straightness are required to be below 0.2mm, then the cylindrical grinding machine needs to be machined after the fine car. If the surface hardness is required, the heat treatment process needs to be increased. According to the size of classification, there is a large such as papermaking machinery with roller (length can reach more than 10 meters, more than 1500 mm in diameter), small, such as automatic assembly line of belt conveyor with pinto roller (generally within 1 meter length, diameter is 159 mm)
