Engineered for food processing, minerals concentration, and wastewater treatment under high-altitude operational parameters.
Advanced custom-engineered industrial evaporators designed for stable operation at higher elevations. Optimal thermal efficiencies and automated control systems.
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Engineered to process heat-sensitive concentration products. Utilizes a gravity-driven film distribution mechanism ensuring low residence times and minimal product degradation.
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Engineered for high fouling liquids, scaling salines, and crystallization. Features powerful recirculating pumps ensuring robust shear velocity across heat exchangers.
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Our premier Mechanical Vapor Recompression (MVR) plant. Recompresses secondary vapor for reuse, slashing carbon footprint and overall thermal energy costs by up to 80%.
View Technical Specs →Lesotho's industrial landscape presents unique physical constraints. Located entirely above 1,400 meters elevation, the geographic location experiences reduced ambient atmospheric pressure. In boiling and evaporation processes, this low pressure fundamentally alters thermodynamic parameters—boiling points are lower, vapor density changes, and vacuum system requirements shift compared to sea-level installations.
Our engineers specialize in optimizing sizing calculations for local operating parameters. Whether handling textiles wastewater concentration in Maseru's industrial estates, starch separation systems, or precious mineral extraction tailings, we provide customized concentration profiles that maintain high thermal coefficients without scaling issues.
Get in touch with our design engineers to calculate exact evaporator sizing, vacuum requirements, and steam savings based on your specific geographical location and facility coordinates.
Get Free Design ConsultationAligning South African regional growth with the latest advancements in thermal concentration and drying engineering.
Global decarbonization initiatives have driven the rapid migration from Multi-Effect Evaporators (MEE) to Mechanical Vapor Recompression (MVR). Because MVR systems utilize electrical energy to mechanically compress and upgrade waste vapor, they reduce steam dependency to near zero. For operations in Lesotho aiming to mitigate volatile boiler fuel costs, MVR offers the most reliable ROI pathway.
Environmental regulations globally are converging towards zero water waste. Evaporation technologies combined with crystallized forced circulation plants are now mandatory in chemical, textile, and mining sectors. By turning industrial effluents into reusable distillates and solid dry salts, our systems help industries achieve regulatory compliance while preserving local clean water resources.
Modern concentration systems now integrate dynamic automation modules. By continuous analysis of feed densities, boiling point elevations, and scaling rates, intelligent PLC platforms automatically adjust recirculating rates, feed rates, and compression speeds. This prevents clogging, limits manual maintenance intervals, and keeps thermal performance at peak levels.
Our engineered solutions span across concentration plants, drying systems, and advanced wet-milling separation technologies.
Capitalizes on dryer exhaust gases, flash steam, and low-pressure vapors. Saves immense energy footprint by recycling structural thermal waste within agro-processing setups.
Multi-stage hydrocyclone systems engineered for purification, concentration, and refining of starches, maximizing protein removal with low fresh-water consumption.
High-efficiency solid-liquid dewatering machines. Ideal for fiber separation in pulp processing, alcohol distilleries, and grain residue dewatering.
Flash drying systems utilizing high-velocity hot air stream for rapid moisture evaporation in heat-sensitive starches, chemical particulates, and food powders.
Indirect steam-heated drying solutions that rotate materials around a central steam-tube structure. Highly stable, low oxygen consumption, optimal for bulk materials.
Designed for grain processing industries, these mills deliver clean separation of corn germ and endosperm, reducing starch loss during dry and wet milling operations.
Targeted thermal processes designed to solve complex processing and environmental challenges.
Lesotho's food security is deeply anchored in grain processing. Our starch washing cyclones, degerming mills, single screw presses, and airflow dryers combine to form integrated starch extraction loops. By concentrating steepwater using falling film evaporators, we reclaim valuable organic solids for animal feed production while maintaining complete water loop recycling.
The diamond extraction industries in Lesotho require massive volumes of process water. Our Forced Circulation Evaporator systems and crystallization units concentrate salty tailings and heavy metal effluents, allowing mine operators to recycle clean distilled water back into operations while isolating minerals as solid crystals, preventing downstream pollution of valuable fresh-water basins.
Maseru's textile processing complexes generate high chemical oxygen demand (COD) wastewater. We configure combined MVR and Multi-Effect concentration systems to evaporate dye bath waste streams, capturing purified water at low cost while concentrating dye salts for safe disposal, supporting green trade certifications.
A global leader in thermal concentration and pressure vessel manufacturing since 1992.
Established on the shores of Lake Taihu in Yixing, Jiangsu Zongheng spans over 54,000 square meters of total site area with more than 22,000 square meters of modern heavy fabrication workshops. We are certified manufacturer members of the China Starch and Alcohol Association and hold specialized engineering licenses for Category III medium & low-pressure vessels alongside global compliance credentials.
Years Industrial Experience
Senior R&D Engineers
Total Facility Area (m²)
Global Pressure Stamp
Founded originally as Yixing Yangxi Light Industrial Machinery Factory, launching with a crew of 45 workers on a 15-mu industrial footprint.
Earned international ISO9001 quality system certification, standardizing manufacturing protocols across all drying and vessel fabrications.
Acclaimed as a Jiangsu Provincial High-Tech Enterprise, marking major research breakthroughs in multi-effect thermal film stability.
Granted the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for pressurized evaporation structures.
Earned the American Society of Mechanical Engineers (ASME) "U" Stamp authorization, opening doors to global exports and international site compliance.
Upgraded to comprehensive International Quality System Certifications (Certificate No: 45021), cementing standardized delivery procedures.
Expanded total manufacturing facility footprint to 54,000+ square meters, running specialized projects globally with 120+ specialized heavy mechanics.
Operational photos showing scale, craftsmanship, and build quality of our concentration and drying systems.
Ensure stability, performance, and efficiency with our certified industrial processing products.
Designed to run on auxiliary heat discharges. Offers cost savings for chemical processing loops in southern Africa.
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Maintains high liquid velocity inside the tubes, preventing scaling on heat-sensitive solutions.
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Standard mechanical compressor system offering energy savings compared to coal/oil steam generation.
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Ensures low maintenance and safe drying for bulk materials like corn germ, fiber, and organic powders.
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Designed for the food processing sector, optimizing output purity and starch recovery ratios.
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Engineered for starch plants to crack kernels without damage, facilitating separation of germs.
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Optimized for processing pulp and fibrous materials, reducing cake moisture before final drying stage.
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Tailored concentration loops designed for minimal water waste and energy footprint reduction.
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Ensures low mechanical wear while maximizing steam-to-product thermal transfer ratios.
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Heavy duty milling chambers designed for low power consumption and high material throughput.
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Drying loops tailored for mineral extraction by-products and large grain processing setups.
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Heavy-duty, wear-resistant screw shaft optimized for continuous operation under abrasive environments.
View Technical Specs →Technical guidance and installation parameters designed to address challenges of local terrain, resources, and regulations.
At high altitudes (such as Maseru's elevation of approx. 1,600 meters), atmospheric pressure is lower than at sea level. This shifts the thermodynamic properties of steam and process liquids. Specifically, boiling points are lowered, which reduces the required thermal gradient but changes the specific volume of the generated steam. Our design engineers adjust the vacuum extraction systems, condenser sizes, and vapor duct diameters to prevent pressure drops and maintain high thermal efficiencies under these physical conditions.
Mechanical Vapor Recompression (MVR) utilizes electricity to run a compressor, which upgrades the thermal energy of the process vapor so it can be reused as the heating source. Multi-Effect Evaporators (MEE) rely on continuous feed steam from coal, gas, or diesel boilers. MVR reduces steam consumption to near zero. While the initial capital cost of MVR is higher, the savings on boiler fuel, combined with reduced carbon emissions, can result in payback periods of under 24 months depending on local utility tariffs.
Fouling occurs when minerals or chemical salts precipitate on heat exchanger tubes. Our forced circulation evaporators prevent this by maintaining high recirculation velocities (typically 2 to 3 meters per second) inside the tubes, generating high shear forces that prevent crystals from adhering. Additionally, we use a separate flash vessel where evaporation occurs, ensuring crystallization happens in the liquid volume rather than on the metallic heat exchange surfaces.
Yes, Jiangsu Zongheng received its ASME "U" Stamp authorization in 2012. All pressure-retaining components of our evaporators, heat exchangers, and separators are designed, fabricated, and tested in accordance with ASME Section VIII Division 1 guidelines, ensuring compliance with local import regulations and occupational health safety acts across Southern Africa.
We provide complete technical support, from initial chemical analysis and pilot tests to installation supervision, commissioning, and staff training. Our technical team works alongside local African contractors to supervise assembly, pipework, and instrumentation configuration on-site, followed by ongoing remote monitoring support.
Work with an experienced Chinese manufacturer committed to providing advanced technology, robust compliance, and custom thermodynamic solutions for the Lesotho market.
Zongheng