Hard Chrome Corrugation Machine Parts Corrugated Rollers 150m/min
Introduction
Corrugating roll is one of the most important components in corrugated carton production. Usually, it is an essential part of single facer. Corrugating rolls consist of two parts: upper roll and lower roll. The lower corrugating roll is the driving roll, which is generally fixed while the upper one is the driven roll.
Specification
♦ 50CrMo alloy steel refined forging, barrel wall thickness ≥70mm
♦ Adopt advanced heat treatment technology, quenching hardness ≥HRC58
♦ Precision machine to do multi-layer process
♦ Hard chrome thickness 0.06-0.08mm,
♦ Lifetime more than 8 million meters
♦ A,C, B, E,F G, N flute
Comparison Between Tungsten Carbide Roller and the Hard Chrome Corrugated Roller
| Compared Item | Chrome Plated Corrugated Roller | Tungsten Carbide Corrugated Roller |
| Flute profile and TUR | Due to the poor wear resistance of chrome-plated corrugated roller, in order to ensure the wear height is not lower than the standards,the tooth profile needs to be designed higher accordingly. | Tungsten carbide corrugated roller has high hardness, excellent wear resistance and low tooth height. Moreover, it will not reduce the compressive strength of the finished products due to the wear on the top of the tooth. A more optimized v-shape tooth can be designed to increase the strength of the cardboard, reduce the amount of the glue applied and save corrugated paper. |
| Thickness of finished board | Using chrome corrugated roller will lead to wear, and the height of the flute will be lower, so the thickness of corrugated board will be decreased. | Tungsten carbide corrugated roller will never wear in theory, and can ensure the finished corrugated board’s durability from high quality production. |
| Service life of corrugated roller | The service life of chrome-plate corrugated roller is generally between 8-12 million meters. | The service life of tungsten carbide corrugated roller can reach at least 35 million meters, reducing the number of maintenance and replacement times, saving manpower, material and financial resources. |
| Usability of corrugated roller’s substrate | Because chrome corrugated roller wear resistance is poor, and repair at every time will reduce the corresponding diameter and hardness. Paper rate will be increased accordingly, and the number of repair will be less. | Tungsten carbide roller’s wear resistance is good, and it’s tungsten carbide coating adopts special removing process, so corrugated roller substrate can not be damaged, and corrugated roller can be used for many times with repairing. |
Flute Profile
Almost every set of corrugating rolls are needed to be designed and customized separately according to the width, diameter, flute height, corrugated paper GSM, speed and cardboard physical index requirement.
| Flute | Profile | Height(mm) | Pitch(mm) | Flutes/300mm | T.U.R |
| A | UV | 4.5-5.0 | 8.0-9.5 | 34±3 | 1.45-1.52 |
| C | UV | 3.5-4.0 | 6.8-7.9 | 41±3 | 1.37-1.47 |
| B | UV | 2.5-3.0 | 5.5-6.5 | 50±4 | 1.33-1.41 |
| E | UV | 1.1-2.0 | 3.0-3.5 | 93±6 | 1.24-1.36 |
| F | UV | 0.8-1.0 | 2.2-3.2 | 115±20 | 1.19-1.25 |
| G | UV | 0.6-0.8 | 1.8-2.8 | 136±20 | 1.15-1.20 |
| N | UV | 0.4-0.6 | 1.2-2.2 | 193±55 | 1.10-1.15 |
| Others | UV | Customized | Design | Design | Design |
