Qingdao Yonghui Packaging Machinery Co.,Ltd
| Payment Terms | T/T |
| Supply Ability | 3000 pcs |
| Delivery Time | 30-45 days |
| Packaging Details | Wooden Boxes |
| Material | 45# steel |
| Coating | Hard Chrome 50-80μm |
| Width | 1900mm |
| Diameter | 328mm |
| Steel wall thickness | ≥50mm |
| Heating treatment | Intermediate frequency quenching |
| Hardness | >HRC55 after hardening |
| Refurbish | 3-4 times |
| Brand Name | YH |
| Place of Origin | Made in China |
| Model Number | 1900-328 |
| Certification | ISO9001 |
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Product Specification
| Payment Terms | T/T | Supply Ability | 3000 pcs |
| Delivery Time | 30-45 days | Packaging Details | Wooden Boxes |
| Material | 45# steel | Coating | Hard Chrome 50-80μm |
| Width | 1900mm | Diameter | 328mm |
| Steel wall thickness | ≥50mm | Heating treatment | Intermediate frequency quenching |
| Hardness | >HRC55 after hardening | Refurbish | 3-4 times |
| Brand Name | YH | Place of Origin | Made in China |
| Model Number | 1900-328 | Certification | ISO9001 |
| High Light | Hard Chrome Corrugator Pressure Roller ，45# Steel Corrugating Pressure Roll ，80μM Hard Chrome Pressure Roller | ||
45# Steel Hard Chrome Coating Pressure Roll for Corrugator Machine
Specifications of 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 |
Precision Welding Can Be Inseparable
Both ends of the roller body should be heated to release the size of the inner bored hole. After the spindle heads are put in, the roller body and the spindle heads should be held tightly after natural cooling. When everything is ready, a driving fit interface has been formed between the roller body and the spindle heads by means of preheating, welding or bolting. Special care should be taken when welding, because finished pressure roller body’s temperature will rise constantly when the roller is running, and the roller body also bears pressure of the steam from the inside of the roller body, which will form the so-called “pressure vessel”. In view of this, the roller body and the spindle heads joint must pass the pressure test. When the welding process finished, the work piece shall be put into the furnace for high temperature tempering to reduce stress.
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.
Quenching Mahine
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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