Speaking of roller, it in another ways actually is also known as drum, it will to a large extent, actually also is being widely applied in the above such as rotary screen printing machine, and its digital printers, and, in terms of its roller equipment, it in mine transport equipment, paper and packaging machinery and other different kinds of transmission of conveyor system with sorting conveyor equipment.

The roller should be sufficiently rigid that we should be aware that it will not exceed its allowable value in bending under heavy loads. Then, in terms of the surface of the roller, in fact, it should be noted that it should have enough hardness, in general, it is required to reach HRC50 degrees above, in this way, it itself will have a strong corrosion resistance.

In fact, the coating on the roller will have a certain ability to resist spalling, so that to a large extent, it can directly ensure that the roller working surface is actually better wear resistance and corrosion resistance.

Then, the working surface of the roller in a large extent in fact, is to pay attention to fine processing, six this aspect, it is to a large extent also will directly ensure the size accuracy and surface roughness. And the roughness should be above Ra0.16, without any pores or grooves. In fact, the wall thickness of the working surface of the roller should be kept even, otherwise, to a large extent, it will directly lead to the uneven temperature of the roller surface, affecting the quality of products.

Then, for the material of roller is also is to should be pay attention to have good thermal conductivity, generally speaking, it to a large extent, actually is also should be attention to use chilled cast iron, its under special circumstances, that is, should be pay attention to use cast steel or chrome molybdenum alloy steel, is either heating or cooling, can achieve the goal of fast evenly.