Engineered for maximum dry solids capture, minimal energy consumption, and seamless integration into Finnish industrial process lines.
Heavy-duty mechanical dewatering press designed to handle fibrous industrial sludge, ensuring high cake dryness and filtrate clarity.
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Integrates low-grade waste heat from drying vapors to concentrate wastewater, significantly reducing operational energy costs.
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Advanced multi-effect and MVR evaporation plants engineered to concentrate chemical effluents and recover valuable process water.
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Optimized for high heat transfer coefficients and short residence times, preserving the quality of delicate organic concentrates.
Read MoreFinland stands at the global forefront of the bioeconomy, circular economy, and advanced environmental technologies. With vast forestry assets, a highly sophisticated pulp and paper industry, and strict municipal wastewater regulations, Finnish enterprises require robust, highly efficient mechanical separation systems. The Single Screw Press has emerged as a cornerstone technology for achieving high dry solids content (DS%) in sludge and fibrous materials, minimizing the energy footprint of downstream thermal drying.
From the pulp mills of Tampere and Lappeenranta to municipal wastewater treatment facilities in the Helsinki metropolitan area, the demand for reliable, low-maintenance dewatering solutions is surging. Strict environmental compliance, rising energy costs, and the national goal of carbon neutrality by 2035 are driving Finnish operators to replace legacy decanter centrifuges and belt filter presses with energy-efficient screw presses.
How modern screw press technology addresses global decarbonization and resource recovery mandates.
Unlike high-speed centrifuges that consume significant electrical energy to generate G-force, single screw presses operate at low rotational speeds (typically 1-5 RPM), reducing power consumption by up to 85%.
Dewatered cake is no longer viewed as waste. High dry solids content enables autogenous combustion in waste-to-energy plants or cost-effective composting and soil conditioning, closing the loop on organic waste.
Low operating speeds translate directly to minimal abrasive wear on the screw flights and screen baskets. This ensures long service intervals, crucial for remote industrial sites in Northern Europe.
The Jiangsu Zongheng Single Screw Press operates on a simple yet highly refined mechanical principle. As the material enters the inlet zone, a variable-pitch, tapered screw shaft slowly conveys the slurry through a cylindrical screen basket. The volume between the screw flights decreases progressively towards the discharge end, generating continuous, controlled hydraulic pressure.
Liquid is forced out through the micro-apertures of the wedge-wire or perforated screen basket, while the solid cake is compacted and discharged past an adjustable pneumatic backpressure cone. This dynamic backpressure control allows operators to fine-tune the balance between cake dryness and throughput, adapting to variations in feed slurry consistency.
To handle highly abrasive materials, such as primary pulp sludge containing sand or mineral fillers, our screw flights are hard-faced with tungsten carbide or specialized stellite alloys, ensuring an extended operational lifespan under continuous 24/7 duty cycles.
Deploying advanced dewatering and evaporation technologies across key industrial hubs in Finland.
Optimizing municipal wastewater treatment plants (WWTPs) by dewatering digested sludge to >28% DS, reducing transport costs to composting and agricultural processing sites.
Dewatering primary clarifier sludge and biosludge in pulp mills to achieve autogenous combustion in bark boilers, turning waste into a viable fuel source.
Efficient separation of potato and grain starch residues, recovering high-purity filtrate and concentrated protein-rich solids for animal feed production.
Concentrating mineral slurries and chemical wastewater streams under extreme sub-zero conditions, ensuring zero liquid discharge (ZLD) compliance.
As industrial automation and Industry 4.0 accelerate, the integration of smart sensors into single screw presses is redefining process optimization. Jiangsu Zongheng is actively developing and deploying next-generation control systems that monitor real-time torque, filtrate turbidity, and cake moisture content.
By utilizing predictive AI algorithms, our systems can automatically adjust the screw speed, polymer dosing rates, and pneumatic backpressure cone position to maintain optimal dewatering efficiency despite fluctuations in feed slurry characteristics. This level of automation is particularly valuable for Finnish operators facing labor shortages and seeking remote monitoring capabilities.
Reduces chemical consumption by up to 25% by matching flocculant feed to real-time solids loading.
Vibration and torque analysis predict screen basket and screw flight wear, preventing unscheduled downtime.
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. The company covers an area of over 54,000 square meters, with a production workshop area of over 22,000 square meters.
Jiangsu Zongheng is a modern high-tech enterprise specializing in the manufacturing of concentration, drying, starch industry, alcohol DDGS, and Category III medium & low-pressure vessel equipment. It is currently a member enterprise of the China Starch and Alcohol Association. Its products are widely used in industries such as food fermentation, alcohol, chemical, pharmaceutical, environmental protection, and petrochemical.
With a strong commitment to quality, engineering excellence, and international standards, we serve global markets, providing tailored solutions that optimize process efficiency and promote environmental sustainability.
Contact Our Engineering TeamExplore our wide range of industrial evaporators, dryers, and separation systems serving the Finnish market.
Engineered for multi-stage washing and concentration of starch slurries, ensuring high purity and impurity removal.
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Utilizes waste heat from dryers to concentrate high-viscosity wastewater, reducing environmental impact and disposal costs.
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High-performance milling machine designed for efficient germ separation and starch recovery in wet milling processes.
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Custom-engineered evaporation plants designed to concentrate industrial liquids while minimizing steam consumption.
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Advanced thermal concentration systems designed to handle complex chemical wastewater streams and recover clean distillate.
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High-capacity screw press systems optimized for municipal sludge dewatering, providing stable operation and low polymer consumption.
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Mechanical Vapor Recompression (MVR) technology reduces steam consumption by reusing secondary vapor, offering massive energy savings.
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Robust mechanical separation systems engineered to handle tough lignocellulosic biomass and organic residues in bio-refineries.
Read MoreOver three decades of engineering innovation, quality certifications, and global expansion.
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.
Acquired international quality system certification (Certificate No.: 45021), establishing a complete quality assurance system aligned with international standards.
Acquired the ASME "U" Stamp authorization, marking the company's entry into a new phase of high-pressure vessel design and manufacturing.
Obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for pressure vessels.
Recognized as a Jiangsu Provincial High-Tech Enterprise, reflecting our continuous investment in R&D and technological innovation.
The company took the lead in obtaining ISO9001 certification, standardizing internal management and quality control processes.
Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd, formerly known as Yixing Yangxi Light Industrial Machinery Factory, was established. The company covered a total area of approximately 15 mu and had 45 employees.
Our commitment to quality is backed by international certifications and rigorous testing standards.
Get technical answers about Single Screw Press operation, installation, and maintenance in Finland.
Contact our engineering experts today for a customized technical proposal and quotation tailored to your plant's specific requirements in Finland.
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