Kunshan Qishen Laser Technology Co.,Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | 2000pcs/month |
| Delivery Time | 10-30 works day |
| Packaging Details | Export standard wooden box |
| Material | NBR，FKM，PTFE，PU |
| Compliance Standards | ISO 9001 |
| Cross-Section Shape | Round，Square，Square |
| Hardness | Shore A/D |
| Inner Diameter (ID) | Negotiation |
| Outer Diameter (OD) | Negotiation |
| Brand Name | Yuncheng |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 2000pcs/month |
| Delivery Time | 10-30 works day | Packaging Details | Export standard wooden box |
| Material | NBR，FKM，PTFE，PU | Compliance Standards | ISO 9001 |
| Cross-Section Shape | Round，Square，Square | Hardness | Shore A/D |
| Inner Diameter (ID) | Negotiation | Outer Diameter (OD) | Negotiation |
| Brand Name | Yuncheng | ||
| High Light | PU flexo end seal ，square end seal for doctor blade ，doctor blade chamber end seal | ||
The custom PU flexo end seal with square cross-section is a precision sealing component designed for chamber doctor blade systems used in flexographic printing machines.
In flexographic printing, the doctor blade removes excess ink from the anilox roller to create a uniform ink layer before transfer to the printing plate. Proper sealing of the ink chamber is essential to maintain consistent ink supply and prevent leakage during printing operations.
End seals installed at both ends of the chamber help maintain pressure balance inside the ink system while preventing ink from escaping during machine operation.
This polyurethane square end seal is specifically engineered to provide long-lasting sealing performance for high-speed printing environments.
The end seal is manufactured with precise cutting technology to ensure accurate geometry and optimal sealing performance.
Accurate seal dimensions are critical because poorly fitted seals can lead to ink leakage and increased wear on the doctor blade system.
Polyurethane offers excellent flexibility and mechanical strength, allowing the seal to maintain constant contact with the anilox roller even during high-speed printing.
This elasticity helps compensate for slight mechanical tolerances within the printing system.
Continuous friction occurs between the end seal and the anilox roller. The polyurethane material provides strong wear resistance, ensuring long operational lifespan.
The seal prevents ink leakage from the chamber system, maintaining clean printing environments.
Consistent ink distribution improves print quality and reduces defects.
Durable seals reduce the frequency of maintenance and machine stops.
Longer service life and reduced ink waste help lower overall production costs.
The PU Flexo End Seal is widely used in:
Plastic film packaging
food packaging
laminated materials
Product labeling
industrial labels
pharmaceutical labels
Carton printing
shipping box printing
adhesive coating
protective coatings
| Parameter | Specification |
|---|---|
| Product Name | PU Flexo End Seal |
| Cross Section | Square |
| Material | Polyurethane |
| Size | Negotiable / Custom |
| Compatibility | Chamber Doctor Blade Systems |
| Ink Type | Water / Solvent / UV |
| Application | Flexographic Printing |
premium polyurethane material
precise geometry and consistent sealing
customizable dimensions
compatible with major flexo printing machines
reliable global supply
Our end seals are compatible with many flexographic printing machines from leading manufacturers.
It prevents ink leakage and ensures stable ink circulation in the chamber system.
Yes. We can produce custom sizes according to your machine specifications.
Common materials include polyurethane, foam, rubber, and felt depending on the printing application.
Replacement frequency depends on printing speed, ink type, and machine pressure.
Yes, they are suitable for most CI flexographic printing machines.
Company Details
Business Type:
Manufacturer,Importer,Exporter
Year Established:
2008
Total Annual:
20000000-50000000
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Shanghai Yuncheng Plate Making Co., Ltd. established in 1993 which is a jolint venture jointly establlshed by Shanxi Yuncheng Plate Making Group and Shanghai Anting industrial Economic Development Co., Ltd. After 25 years of continuous transiormation, Shanghai Yuncheng has developed into nearly 40 ... Shanghai Yuncheng Plate Making Co., Ltd. established in 1993 which is a jolint venture jointly establlshed by Shanxi Yuncheng Plate Making Group and Shanghai Anting industrial Economic Development Co., Ltd. After 25 years of continuous transiormation, Shanghai Yuncheng has developed into nearly 40 ...
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