Qingdao Yonghui Packaging Machinery Co.,Ltd
| Payment Terms | T/T |
| Supply Ability | 1500 sets per year |
| Delivery Time | 60-90 days |
| Packaging Details | Wooden Boxes |
| Material | 50CrMo precision forged alloy steel |
| Coating | American Praxair super hard 1342 tungsten cabide powder 0.06-0.08mm |
| Heating treatment | Intermediate frequency quenching |
| Hardness | >HRC58 after hardening |
| Harden layer depth | 8-12mm |
| Micro hardness | HV1250-1400 |
| Flute type | B flute 2.6mm |
| Warranty | 35million linear meters or 1 year, whichever comes first |
| Finishing | Ra <0.6μm |
| Brand Name | YH |
| Model Number | 2300mm×360mm |
| Place of Origin | Made in China |
| Certification | ISO9001 |
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Product Specification
| Payment Terms | T/T | Supply Ability | 1500 sets per year |
| Delivery Time | 60-90 days | Packaging Details | Wooden Boxes |
| Material | 50CrMo precision forged alloy steel | Coating | American Praxair super hard 1342 tungsten cabide powder 0.06-0.08mm |
| Heating treatment | Intermediate frequency quenching | Hardness | >HRC58 after hardening |
| Harden layer depth | 8-12mm | Micro hardness | HV1250-1400 |
| Flute type | B flute 2.6mm | Warranty | 35million linear meters or 1 year, whichever comes first |
| Finishing | Ra <0.6μm | Brand Name | YH |
| Model Number | 2300mm×360mm | Place of Origin | Made in China |
| Certification | ISO9001 | ||
| High Light | TC Alloy Steel Corrugating Rolls ，TC Alloy Corrugated Roll ，TC Alloy Corrugating Rolls | ||
Inner Suction TC Alloy Steel Corrugating Rolls for 2300mm Width B Flute Corrugated Roll
1. Strict Selection High Quality Alloy Steel Corrugating Rolls Material
With high strength and toughness, good hardenability, no obvious temper brittleness, 50CrMo alloy steel is specialized material for manufacturing corrugating rolls. Our raw material shell thickness is more than 70mm, the thicker shell can reduce deformation and keep stability during production.
2.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 8-12mm. With harder base material as foundation, the lifetime of our corrugating rolls are greatly extended. After different heat treatment process, the corrugated roller surface becomes more wear-resistant and durable. Some manufacturers groove their lower rollers before the rollers’ were harden, because it is relatively easy to work with soft materials. By this could cause problems in the later heating process for the rollers, which will make the hardness of the rollers change. After heating treatment we cut slots of lower roll though this process needs more time but makes uniform hardness.
3.Durable from Supersonic Tungsten Carbide Spraying
Tungsten carbide corrugated roller producing technology is different traditional corrugated roll. Because of the particularity of tungsten carbide material, the requirement of the base material hardness is higher, flute profile before tungsten carbide spraying is more precise, which is needed to match the performance of tungsten carbide. Spraying technology is the key, which can ensure the hardness and binding force of tungsten carbide.Most advanced Praxair JP 8000 HVOF tungsten carbide spraying equipment and technology is adopted and Praxair 1342 super hard tungsten carbide powder is used for our corrugating roll. Before tungsten carbide spraying, we do sand blasting treatment on the surface which make rough surface to increase adhesion of tungsten carbide powder.
4.Strict Test to Keep Improving
Before and after the surface treatment including tungsten carbide plating or hard chrome coating of corrugating rolls, it is needed to check the size, hardness, precision, flute profile, and simulation feeding paper. Special projector is used to check the flute profile and feeding different GSM paper to ensure the performance of corrugating rolls.
5. 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.
The following table is just for a reference.
| 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 |
Contact me:
Bonnie Li
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2004
Total Annual:
10000000-20000000
Employee Number:
80~150
Ecer Certification：
Site Member
Zhejiang Yonghui Corrugated Roller Co., Ltd. is a professional manufacturer of high-quality corrugated rollers with professional production equipment and strong technical strength. Since its establishment in 2004, we have been devoted to the design and research and development of high-q... Zhejiang Yonghui Corrugated Roller Co., Ltd. is a professional manufacturer of high-quality corrugated rollers with professional production equipment and strong technical strength. Since its establishment in 2004, we have been devoted to the design and research and development of high-q...
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