Turning drum

The production of roller mainly consists of initial rolling of roller body, static balance of initial calibration, welding of interference components of shaft head, dynamic balance of precision turning calibration. If the tolerance of roundness, cylindricity straightness is less than 0.2mm, it needs to be grinded on cylindrical grinder roller mill after turning. If the surface hardness is required, the heat treatment process needs to be increased.

After roll forming, surface treatment coating, such as spraying, zinc plating, Teflon spraying, rubber coating, chromium plating, ceramic spraying oxidation, is required for rust prevention, corrosion resistance, wear resistance support.

According to the size classification, there are large rollers such as paper-making machinery (the length can reach more than 3 meters, the diameter is greater than 500 mm), the small rollers, such as the flat roller of automatic conveyor belt conveyor (usually within 1 meter), have a diameter of about 25-89 mm

Depending on the role, there are rollers on the digital laser printer to ensure transmission accuracy, calendering rolls on paper machines (e.g., calendering rolls), no need for high dimensional accuracy backup rolls heat. The rolls required for replacement those used as heavy duty filter presses are listed.

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