Premium-grade machinery designed for optimal material transfers. Fully compliant with international process and safety regulations.
Uruguay has established itself as an essential agricultural and chemical exporting engine within South America. From the high-volume grain terminals at Nueva Palmira and Montevideo to the inland dairy processing complexes of Colonia and San José, the country requires modern processing machinery that minimizes raw material loss. Traditional mechanical conveyors fail to protect bulk materials against environmental moisture and salt-laden maritime winds, causing rapid material degradation and product spoilage.
Modern pneumatic conveying systems resolve these environmental and logistics challenges by isolating materials inside hermetically sealed pipe systems. This prevents contamination from humidity while completely eliminating dust leakage. In cement production facilities and biomass processing plants across Minas and Paysandú, retrofitting to clean pressure transport keeps dust emission levels aligned with Uruguay’s strict environmental laws.
"By integrating high-efficiency rotary feeders and dust-free vacuum conveyors, Uruguayan mills can reduce raw material loss by up to 99.4% during transfer cycles."
High-capacity positive-pressure systems transfer barley, soybeans, and wheat from grain silos directly to bulk shipping vessels. This process eliminates mechanical damage and dust cloud generation.
Stainless-steel sanitary vacuum feeders safely move milk powder and wheat flour without risking bacteriological contamination or exposure to humid coastal environments.
Dense-phase pneumatic systems convey highly abrasive fly ash, quartz sand, and cement powder across long distances under low velocity, reducing line wear and keeping maintenance costs low.
A trusted manufacturer of complete engineering and material handling systems for agricultural and processing plants worldwide.
Henan Jiujie Machine Co., Ltd. is a professional supplier of complete equipment and engineering services for the food production and grain processing industries. Our business covers a wide range of applications, including wheat flour milling plants, feed processing factories, and rice processing plants.
Our product portfolio includes conveying equipment, cleaning equipment, flour milling equipment, and other related machinery. Over the years, our products have been widely recognized by customers both in domestic and international markets.
Since its establishment, Henan Jiujie Machine Co., Ltd. has been dedicated to the research and development of grain processing technology and machinery. With extensive industry experience, we are able to provide integrated solutions across the entire grain and food processing industrial chain. Our solutions cover multiple stages, including raw material collection, storage, cleaning, grading, sieving, grinding, mixing, shaping, production, and packaging.
Our flour milling equipment has obtained the ISO9001 quality management system certification and CE certification. The environmental protection standards of our equipment comply with relevant EU requirements. Our grain cleaning process is designed to operate without water usage, ensuring no wastewater discharge and supporting environmentally friendly production.
Our products are characterized not only by stable performance but also by easy installation, convenient maintenance, and low operating costs. With advanced technology, reliable quality, and modern design, our equipment has earned high appreciation from clients worldwide.
Get Instant Quote & DrawingsPremium valves and feeding components manufactured to precise dimensions for seamless integration into existing lines.
Henan Jiujie Machine Co., Ltd. places strong emphasis on technological innovation and continuous improvement of manufacturing capability and product quality. We have introduced a series of advanced processing equipment, including CNC laser cutting machines, CNC bending machines, and CNC lathes.
In addition, we are equipped with CNC machining centers, CNC boring machines, surface grinding machines, planers, and other high-precision manufacturing equipment. We have also established an electrostatic spraying production line to further enhance product surface quality and durability.
Our manufacturing processes include steel plate laser cutting, CNC bending, CO₂ arc welding, argon arc welding, robotic welding, and electrostatic surface treatment. These advanced production technologies ensure consistent product quality and continuous innovation.
Industrial operators in Uruguay often balance European performance requirements with strict capital expenditure budgets. Partnering with a specialized Chinese factory like Henan Jiujie Machine Co., Ltd. offers a balanced solution: CE-certified performance at competitive manufacturing price points.
Our extensive manufacturing setup reduces delivery times from months to weeks. By using high-precision CNC machinery and robotic welding, we ensure that every flange, casing, and rotary valve aligns perfectly, preventing pressure leaks when installed on-site.
We handle pre-sales custom designs in AutoCAD, tailoring raw material inputs (such as 304/316L stainless steel for marine environments or food handling, and wear-resistant carbon steel for mineral processes) to your specific factory footprint.
Choosing the right system configuration depends heavily on material abrasiveness, conveying distance, and throughput requirements. Review the engineering differences below:
| Conveying Phase Type | Operating Pressure Range | Velocity Levels | Optimal Material Profile | Uruguayan Plant Suitability |
|---|---|---|---|---|
| Dilute Phase (Positive Pressure) | Low Pressure (< 1.0 bar) | High Velocity (15 - 35 m/s) | Non-abrasive, low density grains, bran | Excellent for wheat milling plants, cattle feed transfers |
| Dilute Phase (Vacuum / Suction) | Negative Pressure (-0.2 to -0.6 bar) | High Velocity (18 - 30 m/s) | Toxic powders, food powders, fine flour | Dairy milk powder packaging, clean pharmaceutical facilities |
| Dense Phase (Positive Pressure) | High Pressure (> 1.5 bar) | Low Velocity (1.5 - 10 m/s) | Abrasive, heavy, fragile granular mixtures | Cement factory fly ash, quartz sand glass industries |
A closer look inside our factory floor, displaying the precision machinery used to build reliable components.
Cutting Process
Punching Process
Welding Process
Painting Process
Assembling Shop
Laser Cutting Machine
CNC Lathe
Punching Machine
Bending Machine
Painting Line
Welding Machine
Sawing Machine
Explore our engineered range of vacuum feeders, rotary valves, and pneumatic conveyors designed to optimize your plant’s efficiency.
Find technical answers to design parameters, system selection, and material handling physics.
Positive pressure systems utilize a blower or compressor at the beginning of the conveying line to push materials through the piping to one or multiple destinations. These systems are highly efficient for medium-to-long distances and high capacities. Negative pressure (vacuum) systems, on the other hand, use a vacuum pump at the end of the line to pull material from one or multiple feed points to a single collector. Vacuum conveying is ideal for toxic or dusty materials because any system leaks pull air inward rather than pushing dust outward, and it works exceptionally well for food-grade, sanitary, and short-distance operations.
Abrasive materials like fly ash, cement, and quartz sand cause rapid pipe wear, especially at elbows and junctions, if conveyed at high velocities. For these materials, we design dense-phase conveying systems that operate at low velocities (1.5 to 10 m/s) under high pressure. This slow, sliding-bed or slug flow minimizes friction against pipe walls, extending the wear life of the pipe and elbows while reducing maintenance costs.
In positive pressure systems, the rotary airlock valve acts as the pressure boundary between the atmospheric feeding hopper and the pressurized conveying line. If the rotor clearances (the gap between rotor vanes and the valve housing) are too wide, pressurized air leaks backward into the hopper (called blowback air). This blowback air disrupts the gravity flow of the material, reduces conveying efficiency, and can cause dust build-up. We machine our VCF series rotary valves to clearances under 0.1 mm to ensure an optimal air seal.
Uruguay's humid climate and coastal locations mean that ambient intake air contains high levels of moisture. When compressed, this moisture condenses inside the conveying lines, causing hygroscopic powders (like sugar, flour, or milk powder) to clump and block the pipes. To prevent this, our systems can be equipped with air dryers and dehumidifiers upstream of the air compressor or blower, ensuring only dry, clean air contacts your raw materials.
Connect with Henan Jiujie Machine Co., Ltd.’s application engineering team. Whether you need a customized layout, wear-resistant replacement valves, or a complete greenfield plant design, we provide detailed technical drawings and performance guarantees.
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