CE Certification Sludge Dewatering Press Manufacturers & Factories

High-Performance Dewatering & Evaporation Technologies Compliant with International Standards

Featured Industrial Process Equipment

Discover our top-tier solid-liquid separation and thermal concentration systems engineered for efficiency and global regulatory compliance.

YDX Starch Washing Cyclone

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Zongheng Degerming Mill Machine

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MVR Evaporation Plant

China MVR Evaporation Plant Factory

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MQG Industrial Airflow Dryer

Jiangsu Zongheng MQG Industrial Airflow Dryer

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Zongheng Precision Mill Machine

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ZXG Tube Bundle Dryers

Jiangsu Zongheng ZXG Tube Bundle Dryers

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Forced Circulation Evaporation Plant

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Falling Film Evaporation Plant

Falling Film Evaporation Plant in China

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Whitepaper: Industrial Sludge Dewatering & Evaporation Engineering

In modern industrial operations, sludge management is no longer merely a disposal obligation but a critical metric of operational efficiency, cost control, and environmental compliance. A highly efficient CE Certification Sludge Dewatering Press serves as the cornerstone for factories aiming to reduce water content, minimize transport volumes, and recover valuable process elements.

The Critical Role of CE Certification in Industrial Machinery

For international buyers, particularly those within the European Economic Area (EEA) and global markets that respect European safety standards, CE compliance represents a non-negotiable benchmark. A CE-certified sludge dewatering press guarantees that the equipment aligns with the essential health, safety, and environmental protection directives. This covers the Machinery Directive (2006/42/EC), Low Voltage Directive (2014/35/EU), and Electromagnetic Compatibility Directive (2014/30/EU). Without these certifications, operators face severe operational risks, legal liability, and safety hazards in volatile industrial environments.

Advancements in Multi-Plate Screw Press Technology

The transition from conventional belt presses and filter presses to advanced screw press systems has revolutionized sludge management. The multi-plate screw press operates on a sophisticated continuous filtration principle. Utilizing a slow-rotating screw shaft embedded with dynamic (moving) and static (fixed) rings, it progressively increases pressure inside the chamber to squeeze out water. This continuous self-cleaning mechanism prevents clogging, minimizes washing water consumption, and delivers superior cake dryness compared to older technologies.

Core Product Domains

Evaporator
Single Screw Press
Tube Bundle Dryer
Airflow Dryer
Degerming Mill
Starch Washing Cyclone

Specialized System Specifications & Processes

Understanding the exact mechanics of concentration, evaporation, and drying systems enables process engineers to design holistic waste treatment plants.

Airflow Dryer Technology

Airflow Dryer Technology

Jiangsu Zongheng's MQG Airflow Dryer employs high-speed hot air to suspend and fluidize the material. By utilizing impulse airflow generated from precisely varied tube diameters, it continuously tumbles the particles while conveying them. This design ensures rapid, uniform, and efficient drying throughout the entire transportation process within the system.

Falling Film Evaporation Plant

Falling Film Evaporation Plant

A falling film evaporator efficiently concentrates heat-sensitive liquids. The feed liquid forms a thin film flowing down heated vertical tubes, where it partially evaporates. Vapor generated flows parallel to the liquid, enhancing the process. It ensures a short residence time and low operating temperature, preserving product quality. The system requires proper liquid distribution and complete surface wetting to prevent fouling and maintain high thermal efficiency and operational stability.

About Us & Chinese Manufacturing Advantages

China's industrial manufacturing ecosystem has evolved into a global leader in high-capacity chemical and environmental processing equipment. The primary advantages offered by Chinese manufacturers stem from robust supply chain integration, advanced materials science applications, and cost-effective precision engineering.

Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd (formerly Yixing Yangxi Light Industry Machinery Factory), founded in 1992, is located in Zhoutie Town, Yixing City, on the shores of the beautiful Taihu Lake. Our state-of-the-art facilities cover an area of over 54,000 square meters, with a specialized production workshop area exceeding 22,000 square meters.

As a modern high-tech enterprise, Jiangsu Zongheng specializes in the manufacturing of concentration, drying, starch processing systems, alcohol DDGS, and Category III medium & low-pressure vessel equipment. We are currently an active member of the China Starch and Alcohol Association. Our technological solutions are deployed globally across industries including food fermentation, chemical processing, pharmaceuticals, environmental protection, and petrochemistry.

30+
Years of Experience
20+
Senior & Design Engineers
54000+
Factory Areas (㎡)
22000+
Production Plant Area (㎡)

Development & Technical Milestones

A history built on rigorous quality compliance, continuous research, and international engineering code approvals.

2026

Scale and Engineering Strength

The company covers a total area of over 54,000 square meters, with production workshop space exceeding 22,000 square meters. It currently employs 3 senior engineers and over 20 engineers and assistant engineers, with a total staff of 120 people.

Zongheng 2026
2015

International Quality System Certification

Obtained international quality system certification (Certificate No.: 45021), establishing a complete quality assurance system aligned with international standards.

Quality Certification
2012

ASME "U" Stamp Authorization

Acquired the ASME "U" Stamp authorization, marking the company's entry into a new phase of high-pressure vessel manufacturing and international project delivery.

ASME U Stamp
2009

Special Equipment Manufacturing License

The company obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42), authorizing the production of complex industrial vessels.

Special License
2007

High-Tech Enterprise Designation

Officially recognized as a Jiangsu Provincial High-Tech Enterprise, reflecting our dedication to engineering R&D and technological innovation.

High Tech Enterprise
2002

ISO9001 Implementation

The company took the lead in obtaining ISO9001 certification, standardizing internal management, design, and manufacturing protocols.

ISO9001
1992

Foundation & Roots

Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd, formerly known as Yixing Yangxi Light Industrial Machinery Factory, was established in 1992. The company covered a total area of approximately 15 mu and began operations with 45 dedicated employees.

1992 Foundation

Macro Industry Solutions & Applications

Our equipment lines are integrated into full-scale circular systems to handle agricultural waste, starch concentration, alcohol production, and chemical drying processes.

Evaporator Application

Evaporation Technology

Screw Press Application

Screw Press Systems

Spin Dryer Application

Spin Dryers

Tubular Bundle Dryer App 1

Tubular Bundle Dryer I

Tubular Bundle Dryer App 2

Tubular Bundle Dryer II

Tubular Bundle Dryer App 3

Tubular Bundle Dryer III

Tubular Bundle Dryer App 4

Tubular Bundle Dryer IV

Tubular Bundle Dryer App 5

Tubular Bundle Dryer V

Enterprise Qualifications & Global Certifications

Compliance, accuracy, and international standards verified by premier licensing organizations.

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Cert 1
Cert 2
Cert 3
Cert 4
Cert 5
Cert 6
Cert 7
Cert 8

Global Enterprise Procurement Strategy for Sludge Management

Procurement teams sourcing sludge dewatering machinery need to address total cost of ownership (TCO) rather than simple capital expenditures (CAPEX). A highly durable screw press reduces operational costs (OPEX) in three major areas: polymer consumption, water for washdowns, and energy use.

Key Procurement Parameters to Evaluate:

  • Dry Solid Content (DS%): The target dry solids percentage must match your disposal route. Higher dryness (e.g., 20% to 30% DS) drastically reduces subsequent thermal drying fuel costs or landfill tipping fees.
  • Energy-to-Throughput Ratio: Multi-plate screw presses operate at extremely low speeds (typically 1–3 RPM), drawing a fraction of the electricity used by high-speed centrifuges (decanters). A typical decanter may draw 15-30 kW, whereas a comparable screw press uses less than 2-4 kW.
  • Wear Part Lifespan: Screw shafts treated with hard-facing tungsten carbide coatings minimize wear from abrasive sludges containing sand or grit, extending rebuild cycles to over 15,000 operating hours.

Macro Solutions: Combining Dewatering with Evaporation & Drying

For heavy industrial and zero-liquid-discharge (ZLD) installations, a dewatering press alone is not sufficient. To achieve maximum efficiency, factories integrate falling film evaporators or forced circulation evaporation plants with tube bundle dryers. In this configuration, the sludge is first mechanically dewatered to remove bulk water, then concentrated via evaporation plants, and finally dried to a granular, stable powder. This sequential layout reduces fuel consumption and minimizes waste volume by up to 95%.

Innovative Concentration & Drying Systems

Broaden your facility capabilities with our industrial concentration systems, waste heat recovery evaporators, and process cyclones.

MQG Airflow Dryer Technology

China Suppliers Factory MQG Airflow Dryer

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Forced Circulation Plant

China High-Performance Forced Circulation Evaporation Plant

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Waste Heat Evaporator

Efficient Waste Heat Evaporator for Liquor Recovery

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Starch Washing Cyclone

Jiangsu Zongheng Starch Washing Cyclone

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Degerming Mill Manufacturers

High-Quality Jiangsu Zongheng Degerming Mill Machine Manufacturers

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Forced Circulation Plant Solutions

China Forced Circulation Evaporation Plant Suppliers

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High-Performance Evaporation Plants

High-Performance Forced Circulation Evaporation Plants

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Zongheng ZXG Tube Bundle Dryer

China Zongheng ZXG Tube Bundle Dryer

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Technical FAQ & Purchasing Insights

Find detailed answers to key technical questions concerning CE-certified sludge dewatering equipment, operational constraints, and international standards.

Q1: What directives are mandatory for a Sludge Dewatering Press to receive CE Certification?
To achieve CE compliance, a sludge dewatering press must satisfy the safety requirements of the Machinery Directive (2006/42/EC), the Low Voltage Directive (2014/35/EU) for electrical components, and the Electromagnetic Compatibility (EMC) Directive (2014/30/EU). In explosive chemical environments, ATEX Directive (2014/34/EU) compliance is also necessary.
Q2: How does a screw press compare to a decanter centrifuge in energy consumption?
Multi-plate screw presses operate at low speeds (1 to 3 RPM) and use very little electricity. A typical screw press designed for 100 kg-DS/h consumes only about 1.5 to 3 kW. In contrast, a decanter centrifuge requires high rotational speeds to generate G-force, consuming 15 to 30 kW or more for the same throughput.
Q3: What are the advantages of sourcing dewatering and concentration equipment from Jiangsu, China?
Sourcing from established hubs like Zhoutie Town in Yixing, Jiangsu provides access to a complete supply chain. This concentration of manufacturers facilitates lower costs for raw materials (such as SUS304/SUS316L stainless steel), expert engineering knowledge, and specialized logistics for heavy process equipment.
Q4: Can these systems handle abrasive industrial chemical sludges?
Yes. Industrial screw presses are constructed with high-grade stainless steels. The screw flights are reinforced with tungsten carbide weld overlays or thermal spray coatings to resist abrasion from sand, metals, and mineral crystals present in chemical or industrial wastewater.
Q5: How does the MVR Evaporation Plant save energy compared to multi-effect evaporators?
Mechanical Vapor Recompression (MVR) recycles the latent heat of secondary vapor by compressing it mechanically. This increases the vapor's temperature and pressure, allowing it to be reused as the heating source. This process reduces fresh steam usage, leading to energy savings of up to 60-80% compared to traditional multi-effect thermal evaporation plants.
Q6: What maintenance is required for a multi-plate screw press?
Maintenance is minimal due to the slow rotation speed and self-cleaning mechanism. Typical routines include periodic checks of polymer dosing efficiency, inspection of the spray nozzles, and checking gear oil levels. The moving and fixed rings, as well as the screw shaft, generally require replacement only after 10,000 to 20,000 operating hours, depending on sludge abrasiveness.

Are you ready to optimize your plant's sludge processing system?

We warmly welcome partners from various industries worldwide to visit our facilities in Jiangsu, China, to discuss technical specifications and project requirements.

Request an Engineering Quote Learn More About Zongheng