First of all, we actually have to pay attention to the production requirements of the roller. The roller itself shall be sufficiently rigid to ensure that the bending deformation does not exceed the allowable value under heavy loads. On the surface of the roller should have enough hardness, generally required to reach HRC50 degrees above, with a relatively strong corrosion resistance.

Roller coating should also be paid attention to have a better ability to prevent peeling, to ensure that the work surface of the roller has better wear resistance and corrosion resistance; The working surface of the roller should be carefully machined to ensure dimensional accuracy and its surface roughness. As for its roughness, it should be kept above Ra0.16, and there should be no porosity or groove.

The wall thickness of the working surface of the roller should be kept even, otherwise, it will lead to uneven surface temperature of the roller, and at the same time, it will affect the quality of the products. The material of roller itself should have good thermal conductivity. Generally speaking, it should pay attention to the use of cold cast iron. In special cases, cast steel or molybdenum chromium alloy steel should be used.

Next, we should pay attention to the maintenance of the roller, in order to extend the service life of the roller itself, its maintenance work must be done in accordance with certain requirements. And on this relatively important point, that is to pay attention to must be regularly to clean up the roller dust and so on first close the foreign matter.

After, on the roller maintenance, must be to pay attention to check the roller shell and end cover welding place is not firm; Next, the roller in the maintenance, must be to pay attention to ensure the good performance of lubrication, at the same time can reduce the roller wear loss; Avoid the phenomenon of equipment overload, at the same time can extend the service life of the roller itself.