Engineered for high dry cake solids consistency and optimized for Sri Lanka's growing industrial processing landscape.
Designed specifically to withstand corrosive agricultural environments, offering continuous extraction and supreme moisture removal.
Explore Specifications
Heavy-duty build optimized for solid-containing material concentration, delivering robust output and minimized operational overhead.
Explore Specifications
Ensuring top-tier separation efficiency for cassava starch mills, vital for the food and chemical sector in Central Province.
Explore Specifications
Full compliance with international standards, delivering certified safety and exceptional throughput for wastewater handling.
Explore SpecificationsSri Lanka's industrial landscape is undergoing a fast-paced modernization. As traditional agricultural sectors, such as desiccated coconut extraction, palm oil production, and cassava root starch processing expand, the demand for highly efficient machinery has escalated. High-performance single screw presses are essential to improve material yields, reduce moisture loads, and facilitate zero-liquid discharge protocols requested by the Sri Lankan Central Environmental Authority (CEA).
Furthermore, urbanization around regions like Colombo, Gampaha, and Kandy has put pressure on municipal authorities and private estates to upgrade their wastewater sludge management systems. Applying Jiangsu Zongheng's screw press systems reduces wet cake volumes, yielding massive logistics savings and facilitating organic compost creation from residue solids.
Dewatering is rarely a standalone process. To achieve maximum energy efficiency, modern processing factories utilize mechanical separation as a pre-requisite step before thermal drying. The single screw press extracts free liquid mechanically, which demands up to 90% less energy than thermal evaporation. By feeding a dry cake into dryers, companies reduce their overall carbon footprint and fuel consumption.
Jiangsu Zongheng specializes in both ends of this equation. Our industrial airflow dryers and tube bundle dryers are engineered to sync perfectly with the output parameters of our single screw presses. When liquid streams are squeezed out, they are processed in our customized falling film and MVR evaporators to achieve pure water recovery. This systemic approach is particularly crucial in Sri Lanka, where imported fuel price fluctuations demand strict control over boiler energy usage.
Over three decades of dedication to engineering excellence, offering complete solutions from design to fabrication.
Founded in 1992 (originally Yixing Yangxi Light Industry Machinery Factory), Jiangsu Zongheng is located in Zhoutie Town, Yixing City, on the shores of Taihu Lake. We operate a modern high-tech enterprise footprint encompassing Categories I, II, and III medium & low-pressure vessel fabrication. Our production workshops are outfitted with modern automated welding, plate rolling, and machining facilities to fulfill strict quality audits.
As an active member of the China Starch and Alcohol Association, we manufacture equipment used worldwide in food fermentation, pharmaceuticals, environmental recycling, chemical concentration, and municipal waste handling. Our team possesses the expertise to customize configurations to fit the space, capacity, and environmental requirements of our customers in Sri Lanka.
From our foundation in 1992 to our status as a provincial High-Tech Enterprise and obtaining the prestigious ASME "U" Stamp authorization, Jiangsu Zongheng has consistently invested in quality certifications. Today, in 2026, we employ advanced digital engineering design software, 3D modeling, and finite element analysis (FEA) to ensure that the screw presses and evaporators exported to global markets operate reliably under load.
Exploring the metallurgical properties, mechanical advantages, and customizable features designed for extended service life.
Unlike dynamic decanter centrifuges which run at high speeds and consume substantial electrical power, the Jiangsu Zongheng Single Screw Press operates through mechanical compression at a slow rotational speed (typically between 2 to 15 RPM). The process forces raw material slurry through a tapering channel formed by the variable pitch of the screw. As the pitch tightens, the volumetric volume decreases, generating high compression force.
The liquid escape route is defined by the precision-formed wedge-wire screen baskets wrapping the screw. Liquid flows out via gravity and mechanical pressure, while the dry cake is pushed towards the exit. An adjustable pneumatic back-pressure cone regulates the discharge orifice, letting operators tune dry cake solid percentages dynamically.
| Material Options | SUS304, SUS316L, Duplex Stainless Steel |
| Press Type | Single Screw Shaft with varying Pitch Geometry |
| Moisture Reduction | Achieves up to 50% - 75% cake dryness depending on material |
| Sieve Configuration | Wedge Wire Profile, quick change segments |
| Motor Control | VFD (Variable Frequency Drive) optimized |
Explore our broader selection of falling film, forced circulation, MVR evaporation plants, cyclones, and drying systems.
Designed for concentrating dilute effluents, reducing chemical waste disposal volume at Colombo industrial complexes.
View Product
Ideal for processing highly viscous, scaling, and high-salinity liquids without pipe crystallization blockage.
View Product
Turnkey high-performance evaporation loops designed for corrosive salt recovery operations.
View Product
Perfect for heat-sensitive liquids like fruit juices, chemical extracts, and pharmaceutical washes.
View Product
Custom multi-effect design ensuring optimized steam consumption for organic liquid concentration.
View Product
Multi-cyclone units for starch extraction, refining, and soluble compound separation.
View Product
Optimizes the refinement of tuber starches (cassava, potato) for food grade processing.
View Product
Uses pulsed air stream kinetics to flash-dry fine powders and bulk starches in seconds.
View Product
Provides gentle drying of bulk solids like starch, germ, gluten, and animal feed products under controlled atmosphere.
View Product
High heat transfer coefficients coupled with short liquid residence time to protect delicate materials.
View Product
Recovers waste vapor via compressor technology to reduce primary steam consumption close to zero.
View Product
Engineered for robust mechanical reliability, facilitating simple operator adjustments for optimal solids capture.
View ProductFrom local crop fiber extraction to heavy chemical wastewater separation, our systems are optimized for diverse substrates.
Exporting complex industrial dewatering machinery like single screw presses to Sri Lanka requires precise documentation, customs facilitation, and strict quality verification. Jiangsu Zongheng ensures all components meet regional and global standards, offering mechanical designs that match electrical requirements (3-phase, 400V/50Hz standard in Sri Lankan factories).
We supply extensive inspection certifications, material test reports (MTRs), and pressure test records for evaporator vessels. Our logistics desk organizes shipping to Colombo Port, providing robust wooden crate packaging to protect machinery from high-salinity maritime humidity during transit.
Our pressure vessels, evaporators, and bundle dryers are manufactured to strict pressure codes, backed by ISO9001 compliance standards since 2002.
Get professional answers directly from Jiangsu Zongheng's screw press fabrication and design office.
Stay updated with research findings on evaporator thermal loops and screw press configuration advancements.
June 18, 2026
The evaporator absorbs heat to vaporize media, while the condenser releases heat to liquefy vapor; the two perform opposite cooling and heating functions. Operating under low pressure, the evaporator generates cold energy and concentrates solids. Our engineers detail how linking these evaporation loops directly with mechanical dewatering presses creates a closed recovery cycle, saving thousands in thermal energy.
Read Full Tech Article
Zongheng
