Qingdao Yonghui Packaging Machinery Co.,Ltd
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Wear Resistant Hard Chrome Corrugating Pressure Roll
| Product name | Pressure roll |
| Application | Single facer, corrugator machine |
| Raw material | 45# Steel |
| Heating treatment | Intermediate frequency quenching |
| Hardness | ≥HRC 55 |
| Harden Layer | ≥7mm |
| Coating | Hard chrome 0.05-0.08mm |
| Diameter | 50-500mm |
| The roller surface length | 100-4000mm |
| Cylinder run-out accuracy | ≤0.02mm |
| Cylindricity accuracy | ≤0.015mm |
| Dynamic balancing accuracy grade G2.5 | G2.5 |
Our pressure roll can be regrind 3-4 times because of it's deeper harden layer and thicker barrel thickness. We will design appropriate crown to match with corrugating rolls. That's one of key points for a good quality paperboard.
High Hardness from Vertical Quenching Process
Intermediate frequency quenching can guarantee both the hardness and harden depth we need. Our harden layer depth can reach to 8-10mm. With harder base material as foundation, the lifetime of our pressure rolls are greatly extended.