About us

Company Profile

Zhengzhou DEAO Science & Technology Co., Ltd is specialized in research, production and sales of screen changer/melt filter.  Base on the deep technology accumulation and invention patents, DEAO is standing on the top position of screen changer industry and has been supplying the high efficiency and cost-saving solutions of filtration for totally more than 1000 customers.

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Company Qualification

Looking into the future, it’s still a long and high-responsible way. DEAO will continuous improve itself by taking independent innovation as the driving force and strive to be a supplier to provide the integrated solution of filtration to meet the customer’s requirement and satisfaction. Contribute to a bright future in the fields of high polymer materials.

  • Zhengzhou Deao Science & Technology Co.,ltd
  • Zhengzhou Deao Science & Technology Co.,ltd
  • Zhengzhou Deao Science & Technology Co.,ltd
  • Zhengzhou Deao Science & Technology Co.,ltd


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Company History

In 2015, 27th May,“Material flow pressure balancer”honored the invention patent.

In 2015, “The blade type filter”Honored the utility model patent.

In 2015-2017, “DEAO melt filter pressure control system V1.0”,“DEAO plate type quick change screen changer intelligent control system V1.0”,“DEAO piston type melt filter intelligent control system V1.0”,“DEAO melt filter temperature control system V1.0 ”won the software works certificate.

In 2018 , “Roller cylinder type big filter area stable melt filter” Honored the invention patent and the utility model patent.

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Who are we ?

Zhengzhou Deao Science & Technology Co Ltd is a professional screen changer research and development manufacturer.

What is screen changer?

Screen changer is connected between extruder and die mold, it can filter impurities , ensuring production not stopped, the material is not leaked, the quality and the efficiency of the product are improved, and the high profit value is created for you.

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Our Services

  • Zhengzhou Deao Science & Technology Co.,ltd

    Presales service

    1.Introducing the detail features and applications of the productions to customers;

    2.Selecting economical and practical machine for customers

    3.Providing operation data of the related machine;

    4.Providing means of performance for customers;

  • Zhengzhou Deao Science & Technology Co.,ltd

    Sales service

    1.Introducing engineering conditions required for installation of the machine;

    2.Communicating timely the manufacturing progress of the machine with user;

    3.Providing design scheme for productions.

  • Zhengzhou Deao Science & Technology Co.,ltd

    After-sales service

    1.Engineer service to the customer and training the workers for client;

    2.Giving technical support to customer for developing new productions;

    3.We have 24-hour team to solve the after-sale problem;

    4.Providing free maintenance for a year.