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Cold Rolling Mill Unit
The cold rolling mill is a set of equipment used to roll and process metallic materials at room temperature, primarily employed in the production of cold-rolled sheets, reinforcing bars, and other metal products.
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Cold Rolling Mill Unit
Cold-rolled thin sheets, known for their excellent surface quality, high smoothness, precise dimensions, and superior product performance, are increasingly being applied across various industries—including galvanizing, color coating, automotive manufacturing, household appliances, aerospace, instrument making, and food packaging. Meanwhile, as the economy continues to grow, the demand for cold-rolled thin sheets is also experiencing a rapid surge.
Based on the product characteristics and diverse customer needs, our company can design and manufacture six-roll reversible cold rolling mills, four-roll reversible cold rolling mills, and multi-roll reversible cold rolling mills with various specifications and parameters. These units feature advanced technology, high reliability, minimal investment, and a small footprint.
Crew parameters |
Four-roll cold rolling mill |
Six-roll cold rolling mill |
Rolled materials |
Low-carbon steel, plain carbon steel, high-quality carbon steel, low-alloy steel, stainless steel |
|
Raw material thickness (mm) |
1.0 to 3.0 |
1.2 to 4.0 |
Finished product thickness (mm) |
0.2~1.0 |
0.18 to 1.0 |
Rolling Force (kN) |
3000 to 8000 |
3000 to 15,000 |
Finished product width (mm) |
250~350, 350~450, |
400–550, 700–900, |
Model type |
450, 650, 900 |
700, 900, 1450 |
Maximum Rolling Speed |
1000m/min |
1200m/min |
Characteristics of the four-roll reversible mill:
1. Transmission method: Divided into working roll and backup roll transmission methods.
2. Press-down methods: Two control modes—conventional electric press-down and AGC hydraulic press-down.
3. Equipped with a work roll bending system, it can quickly adjust the roll crown, altering the contact pressure distribution between rolls to achieve precise control of the strip shape.
4. The overall machine structure is simple, making maintenance and operation easier.
Production Process Flow:
Coil Uncoiler (Upper Coiling Carriage) → Initial Straightening Machine → Front Coiler → (Uncoiling Carriage) → Front-End Equipment → Four-Roll Rolling Mill → Rear-End Equipment → Rear Coiler (Uncoiling Carriage) → (Coil Helper).
Characteristics of the six-roll reversible mill:
1. Drive Method: Work Roll Drive;
2. Press-down method: AGC hydraulic press-down, offering high control precision, rapid system response, and a high degree of automation;
3. Roll bending method: Both positive and negative bending of the work roll allows for rapid adjustment of roll crowning, altering the distribution of contact pressure between rolls, thereby achieving precise control over strip shape.
4. Equipped with segmented roll cooling and intermediate roll lateral movement functions.
Production Process Flow:
Coil Uncoiler (Upper Coiling Car) → Initial Straightening Machine → Front Coiler → (Uncoiling Car) → Pre-Machine Setup → Six-Roll Rolling Mill → Post-Machine Setup → Rear Coiler (Uncoiling Car) → (Coil Helper).
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