Engineered for highly abrasive wastewater streams and industrial sludge processing environments across the Sultanate of Oman.
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Fully compliant with international safety and efficiency standards, offering unmatched mechanical moisture reduction rates.
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Optimized extraction systems suitable for organic fiber dewatering, oilseed extraction, and high-efficiency agricultural processing.
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Designed for safe, low-oxygen thermal processing of heat-sensitive materials in Omani petrochemical and mineral industries.
Read More→The Sultanate of Oman is undergoing a rapid, structured industrial diversification plan guided by the historic Oman Vision 2040 framework. Key industrial zones such as the Sohar Port and Freezone, the Special Economic Zone at Duqm (SEZAD), and Salalah Industrial Area are driving growth in chemical manufacturing, oil & gas downstream operations, mining, fisheries, and agricultural processing. As production capacity intensifies, water scarcity and industrial waste management have emerged as critical challenges.
For Omani manufacturers and municipal utility operators, deploying high-efficiency dewatering technologies like the Single Screw Press is no longer just an operational choice—it is a regulatory and environmental imperative. Efficient solid-liquid separation recovers process water, minimizes hazardous disposal volumes, and slashes transport costs by removing up to 85% of moisture from waste slurries. From municipal sludge in Muscat to date processing residue in Al Dakhiliyah, screw presses stand at the center of modern environmental systems.
Unlike conventional decanter centrifuges or filter presses that demand massive energy inputs or intermittent batch cycles, the Single Screw Press functions on a continuous mechanical compaction cycle. A helical screw rotates slowly within a cylindrical slotted screen. The pitch of the screw progressively narrows, building hydraulic pressure inside the press chamber. Liquid is continuously filtered out through the screen gap, while the dried solid cake discharges at the high-pressure head.
This operating principle makes it uniquely suited for the extreme environmental conditions of the Middle East. It has fewer moving parts, low RPM, minimal wear on structural components, and high tolerance to abrasive sand particles common in Omani soil and industrial runoffs. Ultimately, operators enjoy lower uptime costs, reduced power consumption, and cleaner discharge filtrates.
Consumes up to 80% less electricity compared to decanter centrifuges handling equivalent volumes, directly decreasing operational overhead in heavy industrial plants.
Built with robust SS316L and Duplex Stainless Steel components, specifically treated to withstand Oman's high-salinity coastal industrial environments.
Integrated PLC controllers automate clean-in-place (CIP) cycles, polymer feed ratios, and torque adjustments for continuous unmonitored operation.
Oman is a regional powerhouse in seafood harvesting. Processing plants in Duqm and Salalah yield massive quantities of organic offal. Applying our Single Screw Press separates oil, proteins, and solid organic fibers from the press liquor. The resulting solid cake is dried using our ZXG Tube Bundle Dryers to create premium high-protein fishmeal, while recovered lipids are processed for industrial oils, supporting sustainable blue economy objectives.
With millions of date palm trees, Oman generates high volumes of date pulp and fiber waste. Our dewatering screw press applies massive mechanical compression to extract rich sugary juices for syrup manufacturing while dehydrating the fibrous residue. This byproduct is easily converted into clean biofuel pellets or high-quality animal feed, eliminating landfill waste.
In mature oil fields where produced water volumes are high, chemical precipitation followed by screw press filtration isolates sand, heavy crude fractions, and barite sludge. This ensures compliant disposal of hazardous solids and allows water re-injection into drilling reservoirs, saving millions of gallons of fresh groundwater.
As industrial demands escalate globally, procurement professionals must rely on resilient partners. Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd. brings over 30 years of manufacturing pedigree. With a modern, state-of-the-art 54,000 square meter factory floor, we integrate precision Industry 4.0 robotic welding, specialized CNC boring systems, and non-destructive testing suites. This ensures that every Single Screw Press, Evaporator, and Dryer complies with elite standards, including the ASME "U" Stamp and CE certifications.
Our strategic manufacturing location in Yixing, Jiangsu Province, offers seamless shipping routes directly to Oman's major logistical portals, including the Port of Sohar and the Port of Salalah. This logistical pathway guarantees shorter lead times, safe transport, and transparent pricing structure—giving Omani businesses a distinct competitive edge.
Originally established as Yixing Yangxi Light Industrial Machinery Factory, launching our journey in manufacturing light industrial machinery.
Successfully established international quality management workflows, building reliable pathways for structural engineering exports.
Honored as a Jiangsu Provincial High-Tech Enterprise, marking accelerated R&D focus on evaporation and drying designs.
Obtained the Special Equipment Manufacturing License of the People's Republic of China for Category II and III pressure vessels.
Received the American Society of Mechanical Engineers "U" Stamp authorization, establishing global manufacturing status.
Achieved upgraded quality system certifications, consolidating all operations with strict international standards.
Operating over 54,000 m² of factory space, staffed by senior engineers and advanced technician cohorts serving clients worldwide.
For modern Omani desalination and chemical plants, treating wastewater with the utmost thermal efficiency is crucial. Our Mechanical Vapor Recompression (MVR) Evaporators recycle secondary steam, lowering energy requirements. Paired with our Falling Film Evaporation Plants, heat-sensitive chemical concentrations are processed with short residence times, preventing fouling and maximizing resource recovery.
By integrating these evaporators with downstream solid dewatering systems like the Single Screw Press, plants achieve Zero Liquid Discharge (ZLD) configurations, ensuring total environmental compliance under Oman's Ministry of Environment and Climate Affairs (MECA) guidelines.
Single Screw Presses offer significant advantages for Middle Eastern operations: they use up to 80% less electricity, run at extremely low speeds (typically 1-5 RPM) which virtually eliminates wear from abrasive desert sand, require minimal wash-water, and generate little noise. Centrifuges, on the other hand, use high rotational forces that consume large amounts of power and face severe wear when processing abrasive grit.
Yes. Jiangsu Zongheng fabricates screw presses using premium grade Stainless Steel 316L, Duplex Stainless Steel (2205), and super duplex grades where required. This provides robust resistance against pitting and crevice corrosion under high chloride concentrations, typical of Gulf seawater and brine runoff.
Depending on feed characteristics (slurry type, organic percentage, flocculant dosing), our dewatering presses regularly achieve outlet dry solid cake concentration between 20% and 45% DS (Dry Solids). This reduces slurry volume substantially, lowering downstream thermal drying costs or disposal fees.
Our machines are designed for unmanned, continuous operations. Integrated sensors monitor torque load and automatically adjust screw speed and polymer dosing rates to prevent clogging. This makes them ideal for remote facilities where skilled local technicians may not always be immediately available on site.
Our manufacturing and engineering design phase generally takes 8 to 12 weeks, depending on custom requirements. Shipping from Shanghai or Ningbo to Sohar/Salalah/Duqm ports adds 3 to 4 weeks. We offer virtual and on-site engineering installation, commissioning, and optimization support to guarantee smooth startup.
Looking to reduce waste management costs, recover valuable process water, or upgrade your industrial plant's dewatering efficiency in Oman? Our engineering team is ready to design a custom mechanical dewatering or evaporation system tailored to your exact specifications.
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Utilizes process waste steam to drive concentration systems, maximizing resource circularity.
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High-speed centrifugal separators designed for multi-stage starch purification and refining operations.
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Specially engineered for low-temperature concentration of heat-sensitive chemical and liquid solutions.
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Recovers and recompresses vapor to drastically lower boiler steam dependencies in large factories.
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Complies with international safety standards, ideal for pharmaceutical and food-grade concentration.
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Perfect for highly viscous liquids, high crystallization risk feeds, and wastewater streams.
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Provides precise separation, maximizing recovery and refining efficiency in processing plants.
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Integrates multiple heat sources to minimize energy footprint in complex chemical operations.
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Low-oxygen indirect steam drying technology ensuring safe drying of organic by-products.
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Achieves high-efficiency liquor volume reduction to reduce disposal and transportation costs.
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Precision grain milling and degerming technology, maximizing quality yield in food manufacturing.
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