Introduction
ZHENGZHOU DEAO SCIENCE & TECHNOLOGY CO., LTD. (郑州德奥科技有限公司) is a Chinese industrial equipment manufacturer specializing in screen changers and melt filtration systems for plastics processing, chemical fiber, rubber, and related extrusion applications. Based in Zhengzhou, Henan Province, the company presents itself as a technology-driven supplier of continuous and non-stop filtration solutions, with an emphasis on reducing production interruptions, improving melt quality, and lowering material waste in extrusion lines.
DEAO’s public materials describe it as a long-established specialist in screen changer R&D, with research activity dating to the late 1980s and a product portfolio centered on hydraulic, continuous, belt-type, and backflush filtration systems. The company also reports involvement in state and provincial innovation programs and cites multiple invention patents, positioning itself as a niche equipment provider within the broader plastics machinery ecosystem rather than a general-purpose machinery group.
History and Development
DEAO states that its professional R&D work on screen changers/melt filters began in the late 1980s, with nearly three decades of technical accumulation cited in company descriptions. The company later formalized its market presence under the current corporate identity in the 2000s, and third-party business listings commonly identify 2006 as its founding year.
Several milestones recur across public sources:
- Patent-led product development: DEAO reports that it obtained domestic and international invention patents and that one of its filtration concepts received an international patent in 2007.
- Government-recognized innovation projects: The company says it became an innovation project of the National Ministry of Science and Technology and a key science and technology project in Henan Province.
- High-tech enterprise recognition: Public Chinese records list Zhengzhou Deao among Henan high-tech enterprise and technology-oriented small and medium enterprise filings in multiple years, including 2018, 2020, 2022, and 2024.
These milestones indicate a company whose development has been closely linked to industrial filtration technology and local innovation policy in Henan.
Business Operations and Segments
DEAO is primarily an equipment manufacturer focused on melt filtration and polymer processing auxiliaries. Its operations, as described in company and distributor listings, span research and development, production, and sales, with some sources also describing export activity and OEM-type supply relationships.
Its core business can be grouped into three functional areas:
- Screen changers and melt filters
- Melt metering and conveying equipment, including melt pumps and gear pumps
- Auxiliary systems, such as hydraulic stations and electronic control boxes
The company’s business model is therefore centered on supplying integrated filtration modules and associated subsystems for extrusion and recycling lines rather than standalone consumer products.
Products and Technologies
DEAO’s main products include hydraulic screen changers, continuous screen changers, belt-type automatic screen changers, backflush screen changers, and related melt filtration devices. Public listings also mention melt pumps, extrusion gear pumps, hydraulic stations, electronic control boxes, and filter screens.
Core product types
| Product type | Typical technical role | Reported characteristics |
|---|---|---|
| Hydraulic plate screen changer | Manual or hydraulic screen exchange in extrusion filtration | High-pressure operation, wear resistance, and low leakage are emphasized. |
| Continuous double-piston screen changer | Continuous filtration with alternate flow paths | Designed to avoid shutdown during screen changes. |
| Belt-type automatic screen changer | Automated screen replacement | Company materials claim reduced material waste and stable flow. |
| Backflush screen changer | Self-cleaning filtration | Online screen washing and repeated screen use are emphasized. |
| Continuous screen changer for foam and film lines | Non-stop filtration for sensitive processes | Marketed for XPS, EPS, EPE, and cast film applications. |
DEAO’s technical value proposition is the ability to change screens without stopping the machine, which the company says helps reduce energy loss, labor intensity, temperature fluctuation, and scrap generation. In process terms, these systems are used to remove contaminants from polymer melts before the die, helping protect downstream tooling and improve product uniformity.
The company also describes itself as capable of providing turn-key filtration solutions, including complete assemblies for high-output or specialized extrusion systems.
Applications and End Markets
DEAO’s products are used in a range of polymer processing and melt filtration applications. Public listings and product descriptions indicate use in:
- Cast film and blown film extrusion
- Pipe, sheet, and plate production
- Pelletizing and granulation lines
- Plastic recycling and reprocessing equipment
- Chemical fiber, nonwoven, and related polymer applications
The company also states that its filtration systems have been supplied to state-level key projects and new material projects, indicating exposure to higher-specification industrial customers. One supplier profile further notes applications in plastics, chemical fiber, and rubber industries.
Global Presence and Market Position
DEAO is headquartered in the High-Tech Zone of Zhengzhou, a city with a strong industrial and logistics base in central China. Company and trade-platform listings place it in the market as a specialist manufacturer with a global customer base, though independently verifiable market-share data are not publicly available in the provided sources.
The company’s product listings and trade-exhibition references suggest that it has participated in international plastics and nonwoven industry events, including trade shows in China and abroad. Third-party supplier descriptions also indicate export activity to multiple regions, including North America, Europe, Southeast Asia, and other overseas markets.
Within the industry, DEAO appears to occupy a specialized niche in melt filtration and non-stop screen-changing technology rather than competing as a broad-line plastics machinery conglomerate.
Sustainability and Environmental Initiatives
DEAO’s sustainability narrative is framed primarily through resource efficiency in processing rather than through materials circularity programs or lifecycle reporting. The company repeatedly emphasizes:
- Reduced scrap and waste through non-stop screen changing
- Lower energy loss by avoiding unnecessary shutdowns and reheating
- Improved service life of die heads and downstream equipment through contaminant removal
- Higher material utilization in continuous filtration systems
These claims align with broader plastics-industry efforts to reduce process losses and improve the efficiency of extrusion and recycling lines, although the company’s public materials do not provide detailed emissions inventories, recycled-content targets, or external sustainability audits in the sources provided.
Financial Performance and Economic Impact
No audited financial statements or detailed revenue disclosures were identified in the supplied sources. Available third-party listings describe DEAO as a manufacturer with a mid-sized workforce and production capability, while one supplier profile estimates roughly 51–200 employees and notes OEM manufacturing activity.
The company’s economic role appears concentrated in:
- Local manufacturing employment in Zhengzhou
- Supply-chain support for extrusion, recycling, and polymer-processing customers
- Export-oriented industrial equipment sales
Chinese government and industry records also indicate that DEAO has participated in technology programs and been recognized as a high-tech or technology-oriented enterprise, suggesting a degree of policy relevance in addition to commercial activity.
Leadership and Corporate Governance
Public sources identify the company’s contact and sales functions in Zhengzhou, but limited verified information is available regarding board structure, ownership, or senior management in the provided materials. The company’s governance profile is therefore better understood through its institutional positioning as a patent-oriented manufacturing firm with recurring high-tech enterprise recognition than through public corporate filings.
Innovations and Future Outlook
DEAO’s innovation strategy is centered on continuous filtration, automatic screen replacement, and self-cleaning backflush systems. Its product development history suggests a focus on solving a specific process problem: maintaining throughput while filtering melt contaminants in demanding extrusion environments.
The company’s future outlook will likely depend on several industry trends:
- Rising demand for stable, high-throughput extrusion equipment
- Growth in plastic recycling and reprocessing, which increases the need for robust filtration
- Continued investment in specialty polymers, foam sheet, and film lines
- Competition from domestic and international melt-filtration suppliers offering automation and integration features
DEAO’s positioning suggests that it will continue to compete on process reliability, customization, and technical specialization, particularly where non-stop operation and melt cleanliness are critical.
Summary
Zhengzhou Deao Science & Technology Co., Ltd. is a specialized Chinese manufacturer of screen changers and melt filtration systems for polymer-processing industries. Its reputation is built on long-term R&D, patent-backed product development, and a portfolio of continuous and self-cleaning filtration technologies aimed at reducing downtime, waste, and energy use in extrusion operations.
While public information on financial scale and governance is limited, available sources consistently portray DEAO as a niche, technology-oriented supplier with domestic high-tech recognition and an export-facing industrial customer base.
References
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CPS+ eMarketplace. (n.d.). ZHENGZHOU DEAO SCIENCE & TECHNOLOGY CO., LTD.ZHENGZHOU DEAO SCIENCE & TECHNOLOGY CO., LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1028262Link