Jumbo press roll usually refers to a nip that has a diameter of more than 1000mm and is made up of pressing rollers. In the manufacture of corrugated paper, cardboard, and other pieces of paper or cardboard with large basis weights, it is widely used. The large-spoke press provides a wide nip that can hold the paper sheet for a long time, compared to ordinary presses. Using the two-way vertical dehydration design, it can improve dehydration efficiency, increase dewatering capacity, and increase paper quantity. The dryer section can also be reduced in steam consumption, which in turn reduces production costs. The paper will also be stronger and more burst resistant. When the paper machine is running, there will be a large amount of heat between the rollers due to the large linear pressure between the rollers and the high load. Water was added to the side of the operation shaft head in order to cool the circulating water, which protected the surface coat rubber. Paper machines with this technology typically offer high speed, low energy consumption, and good paper quality. In order to speed up and save energy on old paper machines and design new ones, jumbo pressing technology and equipment have become the first choice.