High Precision Reversing Cold Rolling Mill - China Suppliers & Factory for Steel Strips

The Theory of Four Roll Rolling Mill

Four roll rolling mill system is composed of two pcs of support rolls and two pcs working rolls. During mill, through pressing cylinder or mechanical pressing device, the pressing force will transmit to support roll bearing stand, support roll, working roll, and finally act on rolled piece.

The work piece height will be reduced (become thinner), length extended (become longer), then to meet the expected specifications.

⚙️ Due to the impact of pressing force, rollers will become bending, the workpiece edges will become thinner. Rollers need grinding its convexity according to practical situation.

Product Introduction

The four-high reversing cold rolling mill is an important metal pressure processing equipment, widely used in metallurgy, mechanical manufacturing, non-ferrous metal processing and other industries. It performs cold rolling on metal materials through the coordinated action of four rolls, achieving material thinning, surface quality improvement and mechanical property enhancement.

The reversible design enables the rolling mill to roll in both forward and reverse directions without frequent adjustments to the position of the rolled piece or the rolling mill, significantly improving production efficiency.

In the automotive manufacturing industry, the plates rolled are used for body panels requiring high strength, good formability, and corrosion resistance. In the electronic and electrical industry, the strips are used to manufacture precision components requiring high surface finish and dimensional accuracy.

Operation and maintenance are also critical. Operators need professional training, familiarity with the rolling mill structure and operating procedures, and the ability to correctly adjust parameters and handle issues during rolling. Regular maintenance — including roll replacement, lubrication system inspection, and electrical system maintenance — is key to long-term stable operation.

Technical Parameter Table

📌 Remark: The model and parameters shown in this table are for reference only. The design and production can be tailor-made according to user's requirements.