The rolling mill set is the core component combination in rolling equipment such as steel rolling, aluminum rolling, copper rolling, etc. It is composed of two or more rolling mills, matched with auxiliary components such as bearing seats, frames, and adjustment mechanisms. Through the relative rotation of the rolling mills, pressure is applied to the metal billet, causing it to undergo plastic deformation and roll into specific specifications of plates, profiles, pipes, and other products.

Core Features

Structural composition: The main body is a pair or group of rolling rolls (such as working rolls and supporting rolls), with supporting components including bearings, bearing seats, rolling roll spacing adjustment devices, transmission devices, etc. Some rolling roll groups are also equipped with cooling and lubrication systems.

Working principle: When a metal billet passes through the gap between the rolling rolls, the rolling rolls rotate and squeeze the billet, changing its cross-sectional size and shape, while improving the metallographic structure inside the metal, enhancing product strength, hardness, and other properties.

classification basis

According to the number of rolling rolls, it can be divided into two roll group, three roll group, four roll group, six roll group, etc;

According to usage, it can be divided into hot rolling roller group, cold rolling roller group, profile rolling roller group, sheet rolling roller group, etc.

Common aliases in the industry

Common terminology

Roll components

Roll mill unit (colloquial abbreviation, focusing on complete equipment attributes)

Call it by function/structure

Working roll group (specifically referring to the combination of rolls that directly contact the billet)

Supporting roll set (used to support working rolls and improve rolling accuracy)

Roller unit assembly (more written, emphasizing complete component combination)

Industry specific terminology

Steel rolling industry: it is often called roll memorial archway (it is named because the frame where the roll is installed looks like memorial archway, and roll group and memorial archway are collectively called roll memorial archway in some scenes)

Aluminum processing industry: often referred to as rolling mill units or rolling mill units.