Highly optimized solutions designed for agro-processing, wastewater recovery, and chemical crystallization.
Advanced evaporation plants customized for energy-scarce Pacific Island processing plants, utilizing low-temp vacuum technologies.
Explore Technology
Heavy-duty solid-liquid separator optimized for dewatering copra, starch fiber, and organic wastes prior to drying phases.
Explore Technology
Engineered for high fouling liquids and crystallization requirements, featuring extreme resistance to volcanic water impurities.
Explore Technology
Optimized for processing heat-sensitive liquids at minimal temperatures to preserve nutrients, flavors, and extract quality.
Explore TechnologyNavigating remote island logistics, high utility costs, and the mandate for low-carbon production processes.
The Republic of Vanuatu is experiencing a crucial shift in its economic engine. Historically dominated by subsistence agriculture and tourism, the nation is actively pivoting toward localized processing of domestic resources—namely copra, coconut oil, kava derivatives, vanilla extraction, and starch from tuber crops like cassava. Key centers such as Port Vila and Luganville are experiencing targeted investments to upscale crude raw agricultural outputs into high-value, export-compliant consumer products.
However, industrial developers in the Melanesian archipelago face complex operational challenges. The primary obstacle is the high cost of energy. Because isolated island grids rely heavily on imported fossil diesel, electricity rates can exceed USD 0.40 per kWh. Additionally, Vanuatu’s status as a biodiversity hotbed demands that manufacturing wastewater be managed responsibly to prevent coral damage and marine ecosystem degradation.
By extracting water dynamically at the site of production, processing facilities can reduce logistics mass by up to 70%, lower fuel consumption during subsequent drying, and recover pure condensate water for reuse. This creates a sustainable loop that preserves resources, controls costs, and meets strict environmental requirements.
Understanding the engineering mechanics of falling film, forced circulation, and mechanical vapor recompression.
For processors in Vanuatu, selecting the correct evaporator design determines the long-term viability of the plant. A Falling Film Evaporator is recommended for heat-sensitive organic feeds like fruit juices, coconut water, or kava root liquor. By distributing feed liquor uniformly across the inner surfaces of vertical tubes, the fluid forms a thin film that flows downward under gravity. Steam applied to the exterior of these tubes promotes rapid boiling without high hydrostatic pressure, maintaining low thermal exposure times (often under 30 seconds) to prevent degradation of delicate flavor compounds or active ingredients.
Conversely, for solutions with high salt loads, high viscosity, or crystallization tendencies—such as chemical salts or municipal wastewater—a Forced Circulation Evaporator is required. Liquid is pumped under pressure through the heat exchanger tubes at high velocities, preventing boiling inside the tubes to limit fouling. Boiling only occurs as the liquid enters the vapor separator, where flash evaporation concentrates the slurry for crystallization.
The Single Screw Press acts as the first line of defense in solid-liquid separation. It mechanically removes water from wet fibrous solids—such as starch residues, copra cake, or waste biomass—before the drying phase. Because thermal drying consumes 8 to 10 times more energy per kilogram of water removed than mechanical pressing, maximizing dewatering efficiency is vital.
Jiangsu Zongheng's single screw press utilizes a variable-pitch screw combined with a conical exit restrictor. The screw's flight pitch decreases from feed inlet to discharge, compressing the material inside the screen cage. Hydraulic cylinders adjust the conical plug at the outlet, providing controllable backpressure. This system reduces the moisture content of fibrous materials to 45%-50%, preparing them for efficient final drying.
Vanuatu’s coastal operations are exposed to high humidity and salt spray, which accelerate corrosion. Jiangsu Zongheng structures all evaporators, tube sheets, and screw elements with high-grade alloys—ranging from SUS304 and SUS316L to Duplex Stainless Steel (SAF2205/2507) and Titanium—to extend equipment lifespans in demanding marine environments.
How Jiangsu Zongheng ensures global compliance, heavy-industry certification, and robust shipping logistics.
Procuring heavy industrial equipment for Vanuatu requires strict adherence to international quality standards. Jiangsu Zongheng maintains comprehensive compliance portfolios to streamline customs clearance and operational approvals in the South Pacific.
Our engineering and production practices are certified under the ASME "U" Stamp program for pressure vessels, alongside CE Certification for European machinery safety standards. Every evaporator vessel, steam header, and high-pressure system undergoes radiography, non-destructive testing (NDT), and hydrostatic pressure trials before leaving our facility.
Logistical safety is a key priority for remote locations like Vanuatu. All machinery components are packed in heavy-duty, anti-corrosive vacuum wrapping and secured within steel-framed shipping containers. This ensures the equipment is protected against marine moisture and mechanical shock during its voyage across international shipping lanes to the Port Vila or Luganville docks.
Leveraging advanced manufacturing processes to deliver high-quality, cost-efficient industrial solutions.
Jiangsu Zongheng operates out of a modernized 54,000 square meter facility in Yixing City, containing over 22,000 square meters of specialized production space. Our factory is equipped with high-speed automated submerged-arc welding machines, large-scale CNC rolling mills, and plasma cutting stations, ensuring precise fabrication of complex thermal and mechanical systems.
Our localized supply chain in Jiangsu enables rapid sourcing of premium raw materials and components, such as Siemens electrical packages, Alfa Laval heat exchanger plates, and SEW-Eurodrive gearboxes. This vertical integration allows us to offer shorter manufacturing timelines and competitive pricing without compromising on quality.
Every evaporator system we build is modeled using finite element analysis (FEA) and computational fluid dynamics (CFD) to optimize heat transfer efficiency, prevent product deposits, and verify fluid flow rates before manufacturing begins.
Ensuring operational continuity through virtual commissioning, on-site assistance, and rapid parts delivery.
Operating industrial machinery in remote island locations requires dependable technical support. Jiangsu Zongheng offers a comprehensive, multi-tiered service model tailored for Vanuatu's processing plants.
We provide Virtual Commissioning Assistance, utilizing remote IoT sensors to monitor system start-ups and guide local maintenance teams in real-time. For complex installations, we can dispatch qualified service engineers directly to Vanuatu to oversee site integration and train operators on system maintenance.
Technical answers to common questions about thermal separation, mechanical dewatering, and system engineering.
Explore our complete range of specialized dewatering, evaporation, and drying machinery designed for industrial processing.
High-efficiency mechanical vapor recompression systems configured to minimize energy usage and process industrial wastewater effectively.
View Details
Indirect steam-heated tube bundle dryer designed for continuous, low-temperature drying of organic starches, copra, and grains.
View Details
Utilizes high-speed heated air to suspend and dry damp starch particles uniformly during pneumatic transport.
View Details
Robust degerming mill systems engineered for clean germ separation and fiber isolation in starch processing plants.
View Details
Optimized filtration and pressing mechanics designed for municipal wastewater sludge treatment and industrial solid-liquid separation.
View Details
Custom-engineered thermal separation plants designed to produce high-purity water outputs from salt water feeds.
View Details
Designed for multi-effect concentration of temperature-sensitive liquids, maintaining high heat transfer rates with minimal product hold-up.
View Details
Specially configured dewatering screw system designed to extract water from corn, cassava, and sago fiber slurries before drying.
View DetailsPartner with Jiangsu Zongheng for custom-engineered evaporation, dewatering, and drying solutions designed to fit your operational constraints.
Zongheng