In the world of papermaking, understanding the components of a paper machine is crucial. A paper - making facility generally consists of three main parts: pulping equipment, papermaking equipment, and rewinding (or paper - cutting) equipment.

Pulping equipment includes beaters, dross - removing equipment, pulp - washing equipment, and auxiliary material equipment. Papermaking equipment is composed of wire - section equipment, press equipment, dryer cylinders equipment, calendering equipment, and winding equipment. Rewinding equipment typically refers to rewinders and weighing, stamping, and packaging equipment.

A paper machine is a combined device for paper making, mainly consisting of wire, press, and drying parts. The wire section can be divided into two types: circular wire and long wire. The press section is made up of press rolls and papermaking felts. The drying section consists of one or several dryer cylinders. Some long - wire machines are also equipped with a mechanical calender to improve the smoothness and tightness of the paper.

There are many types of paper machines. For example, the single - dryer paper machine (also known as the Yankee paper machine) for making one - side - glossy paper, the long - wire multi - dryer paper machine for making general paper, the tissue paper machine for making typing paper, cigarette paper, etc., and the cardboard machine for making cardboard. In addition, there are some paper machines for producing specialty papers. Generally, significant structural changes will be made according to the characteristics of specialty papers.

According to the needs of the papermaking process, paper machines come in various structural forms. Generally, they are composed of components such as the stock - approach system, forming section, press section, drying section, finishing section, winding section, and drive system, as well as some auxiliary systems and supporting equipment. This comprehensive setup ensures the efficient and high - quality production of different types of paper products.