| Flute Type | A | C | CB | B | BE | E | F | G | N | O |
| Flute Profile | UV | UV | UV | UV | UV | UV | UV | UV | UV | UV |
| Number of Flutes (Flutes/300mm) | 30±2 | 39±3 | 44±2 | 50±2 | 66±3 | 90±10 | 124±10 | 185±12 | 200±15 | 267 or designed |
| Flute Height | 4.6-4.9 | 3.6-3.9 | 3.0-3.5 | 2.6-2.9 | 1.9-2.1 | 1.1-1.5 | 0.7-0.8 | 0.5-0.65 | 0.4-0.5 | 0.25-0.35 |
| Take-Up Ratio (T.U.R) | 1.51-1.59 | 1.44-1.51 | 1.42-1.49 | 1.36-1.42 | 1.4-1.41 | 1.29-1.39 | 1.22-1.26 | 1.2-1.25 | 1.15 or designed | 1.14 or designed |
* Note: Flute types are customized based on the customer's requirements and the grammage range of liner and medium paper.
Our chrome plated corrugating rolls are manufactured from 50CrMoA alloy steel, then heat treated and precision-ground to ensure dimensional accuracy and structural strength. A hard chrome coating thicker than 0.08 mm is applied to the surface, creating a durable protective layer that significantly reduces friction at the flute tips. This improves wear resistance and helps maintain consistent flute geometry over time, extending the overall service life of the corrugating roll.
The resulting surface is smooth, bright, and resistant to wear, offering stable and reliable performance in standard-speed corrugated board production lines. To further support long-term use, we also provide regrinding and chrome recoating services, restoring worn rolls to working condition and helping customers reduce replacement frequency and overall maintenance costs.
Chrome plated corrugating rolls are suitable for producing a variety of corrugated board types, including A, B, C, E, F, and N flute profiles, in standard corrugated board production lines.
Made from 50CrMoA forged alloy steel sourced from Zhongyuan Special Steel, a top-tier Chinese supplier. The material offers high strength, wear resistance, and thermal stability, ideal for high-speed corrugating applications.
Finished with hard chrome plating, with a coating thickness of 0.08–0.10 mm and a uniformity tolerance within ±0.01 mm to ensure consistent performance and wear resistance.
A composite treatment combining nitriding, quenching, tempering, and cryogenic cooling at –190 °C is applied to the roll surface. This process achieves a surface hardness of HRC ≥ 60, ensuring long-term durability and wear resistance.
Vacuum-sealed with anti-rust protection and packed in shock-resistant wooden crates, suitable for long-distance sea transport.
The quality control system includes 12 strict steps, covering every stage from raw materials to the finished product.
The process involves:
Raw material testing → weld air-tightness → dynamic balancing → hardness, flute profile and dimensions → pressure testing → coating thickness → final inspection.
Our experts are here to guide you in choosing the right components and machinery to keep your corrugated board line running at its best.
