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 | 2200mm |
| Diameter | 394mm |
| Steel wall thickness | ≥50mm |
| Heating treatment | Intermediate frequency quenching |
| Hardness | >HRC55 after hardening |
| Refurbish | 3-4 times |
| Brand Name | YH |
| Model Number | 2200-394 |
| Place of Origin | Made in China |
| 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 | 2200mm | Diameter | 394mm |
| Steel wall thickness | ≥50mm | Heating treatment | Intermediate frequency quenching |
| Hardness | >HRC55 after hardening | Refurbish | 3-4 times |
| Brand Name | YH | Model Number | 2200-394 |
| Place of Origin | Made in China | Certification | ISO9001 |
| High Light | 45 Steel Corrugating Pressure Roll ，7mm Harden Layer Pressure Roll ，Harden Layer Corrugating Pressure Roll | ||
Hard Chrome Pressure Roll for K&H Corrugated Cardboard Making Machine SF-300Q
| 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 8-10mm. With harder base material as foundation, the lifetime of our pressure rolls are greatly extended.
Intermediate frequency quenching machine.
High precison grinding machine.
Package
Main products:Tungsten Carbide corrugating rolls, hard chrome corrugating rolls, pressure roller, glue roll and doctor rolls. The products are mainly sold in China, India, South Korea, Russia ,Thailand, Myanmar, Iran, Egypt and other countries.Therefore, our products are widely recognized by the global customers, which make us gaining sound reputation all over the world.
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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