The working environment of carton machinery is humid and high-temperature, and some equipment is also accompanied by impact loads. Therefore, in the selection of lubricants, the main considerations are their anti-emulsification property, water resistance, thermal oxidation stability and load resistance performance. The lubrication points on papermaking machinery are, in principle, all closed. All the bearings in the wet section of the paper machine, from the pulp box to the pressing section, are sealed bearing housings to prevent water from entering and grease from overflowing, thus avoiding cross-contamination. The dry section of the paper machine, due to the relatively high temperature during operation, adopts a central lubrication station to supply lubricating oil to various bearings under pressure for lubrication and heat dissipation. The grease lubrication points at the wet end mostly adopt the method of regular manual inspection and grease injection and replacement. Therefore, the lubrication system usually refers to the central lubrication station of the dry section, all oil supply and transportation pipelines, and oil injection devices.

The lubrication station for the dry section of a paper machine is usually selected from the standard general-purpose model. It is best to choose one with stronger oil filtration capacity and oil temperature control ability. If it has a magnetic filter and constant temperature control, it is even more suitable. The oil delivery volume of the lubrication station is usually calculated based on the heat dissipation requirements of each lubrication point.

The future direction of the carton machinery and equipment manufacturing industry is to reduce ordinary corrugation lines and develop medium and high-end corrugation lines. Three-layer corrugated lines and five-layer ordinary corrugated lines are low-end products. Due to their slow speed, poor quality and low grade, they cannot meet market demands, which restricts the development of carton enterprises. Some enterprises' ordinary corrugated lines have been in use for too long and their equipment has aged, so they must be updated to medium and high-grade corrugated lines. Of course, some small and medium-sized enterprises, due to economic conditions and sales volume constraints, can only purchase ordinary corrugated lines for the time being to develop production. In addition, different regions should also be treated differently. In developed provinces and cities for carton packaging, such as Guangdong, Jiangsu, Zhejiang, Shanghai and other regions, it is basically suitable for high-end production lines. The western regions are economically backward, and the packaging industry is also relatively backward. In some provinces, there are no corrugated cardboard lines yet, and they rely on single machines and single-sided machines to produce cartons. In some provinces and cities in the western regions, there are only a few production lines. They regard the ordinary corrugated cardboard lines as a "treasure", and there is still room for development. Therefore, the common type of corrugated paper line is still suitable for small and medium-sized carton enterprises and economically backward western regions, and cannot be phased out. However, as the goal of mechanical manufacturing enterprises, they should focus on the regions where carton packaging is reached, develop a new generation of high-end, high-speed, high-quality and highly sensitive free box moving equipment, and carton machinery should also develop towards high-tech content. There is still a considerable gap between domestic industrial carton machinery and that of advanced countries in the world, such as the United States, Germany, Japan, Italy and other countries, and the price gap of equipment is even greater.