Explore our core engineering equipment engineered for high throughput, precise destoning, and maximum grain purity.
Engineering Superiority, Industrial Scaling, and Turnkey Grain Processing Solutions
Henan Jiujie Machine Co., Ltd. is a professional supplier of complete equipment and engineering services for the food production and grain processing industries. Our comprehensive business portfolio covers a wide range of global applications, including industrial wheat flour milling plants, feed processing factories, and rice processing plants.
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 provide integrated solutions across the entire grain and food processing industrial chain. Our solutions cover raw material collection, storage, cleaning, grading, sieving, grinding, mixing, shaping, production, and packaging.
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 in domestic and international markets across North America, Europe, Southeast Asia, Africa, and the Middle East due to unmatched operational stability and cost efficiency.
Understanding Aerodynamic Terminal Velocity, Specific Gravity Stratification, and Multi-Stage Impurity Removal
Traditional wet-cleaning methods consume up to 2.5 tons of clean water per ton of processed grain, generating toxic wastewater sludge and increasing grain moisture risks. Jiujie Machine's dry-cleaning grain separators leverage triple-stage air aspiration coupled with dual-eccentric vibrating decks to achieve superior purity while eliminating effluent discharge entirely.
By controlling air velocity inside closed recirculation channels, low-density light impurities (husks, chaff, dust, and shriveled grains) are levitated and drawn into dust cyclones, while heavier sound grains drop onto the screening deck. This prevents grain fracture while maximizing air duct suction efficiency.
Heavy contaminants like stones, glass, and iron particles possess identical dimensions to whole grains but differ sharply in density. Our Specific Gravity Destoners utilize fluidizing upward air currents and inclined reciprocating screen beds to float lighter kernels downhill while conveying heavy stones upward to discharge ports.
Custom perforated sieve plates, calibrated with precise circular, long-slot, or diamond perforations, categorize grain streams based on geometric dimensional variance. Self-cleaning food-grade rubber balls continuously bounce under screen decks to eliminate mesh blinding and guarantee uninterrupted continuous 24/7 output.
| Performance Indicator | Jiujie Dry-Separation Technology | Legacy Wet Cleaning Systems | Standard Vibrating Screens |
|---|---|---|---|
| Heavy Impurity Removal Rate (Stones/Glass) | > 99.5% | 92.0% - 95.0% | 75.0% - 82.0% |
| Light Dust & Chaff Extraction Efficiency | 99.8% via Closed Loop Air | 85.0% (Sludge formation) | 70.0% (Dust dispersal) |
| Water Consumption / Effluent Generation | Zero (0 L/Ton) | 1.5 - 3.0 m³/Ton | Zero (0 L/Ton) |
| Energy Consumption per Ton | 1.2 - 1.8 kWh/t | 4.5 - 6.2 kWh/t | 2.0 - 2.5 kWh/t |
| ATEX Dust Explosion Safeguards | Integrated Pressure Relief & Sealed Motors | Not Applicable (Wet environment) | Basic External Dust Collection |
Precision Engineering, Advanced Machining Centers, and Automated Electrostatic Surface Treatment
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, anti-corrosion resistance, and structural durability. Our processes encompass steel plate laser cutting, CNC bending, CO₂ arc welding, argon arc welding, robotic welding, and electrostatic surface treatment, ensuring zero-defect quality standards across every production lot.
Why International Buyers Partner with Henan Jiujie Machine Co., Ltd. for Enterprise Procurement
Situated in Henan Province—the epicenter of China's agricultural machinery manufacturing cluster—Jiujie Machine leverages an unparalleled local ecosystem. From premium raw steel sourcing to precision bearing suppliers and electric motor giants (SKF, Siemens-grade options), we maintain a streamlined production cycle with 30-40% lower capital expenditure than European counterparts.
Our grain separation and milling machinery is engineered specifically for low operational cost and extended component longevity. Heavy-duty wear plates, double-sealed NSK/SKF bearings, and food-grade stainless contact points significantly lower maintenance frequency, resulting in payback periods often under 14 months for commercial mill operators.
We recognize that no two grain processing lines are identical. Utilizing AutoCAD and 3D SolidWorks engineering modeling, our technical teams design custom hopper intakes, multi-stage pneumatic conveyances, and tailored sieve hole geometries optimized for localized crop properties (e.g., hard red wheat, basmati paddy, yellow maize, coffee beans, or garri cassava flour).
Engineered Adaptability for Diverse Agricultural Commodities Worldwide
Eliminates ergot, wild seeds, mud balls, and dense stones prior to conditioning. Ensures refined flour ash content stays well below strict food safety thresholds while protecting roller mill fluting from mechanical damage caused by fugitive stones.
Separates light immature paddy kernels and dense gravel before paddy de-husking. Prevents rubber roller wear in de-huskers, lowers broken rice percentage during whitening, and increases head rice recovery yield by up to 3.5%.
Processes heavy corn kernels, removing corn cobs, stalks, sand, and iron debris. Crucial for both commercial human-grade cornmeal milling and high-volume livestock feed mill pre-cleaning circuits.
Separates foreign botanical matter, soil clods, and defective beans based on strict density and dimensional metrics. Essential for high-value coffee bean exporters and commercial lentil packaging plants demanding 99.9% purity.
International Compliance Standards backed by End-to-End Field Support
Our flour milling and grain separation equipment has obtained rigorous ISO9001 quality management system certification and CE certification. Environmental performance fully complies with stringent European Union directives, incorporating low-noise vibration mounts and dust-tight sealings for workplace safety.
Our grain cleaning process is engineered to operate completely without water usage, ensuring zero wastewater discharge and supporting environmentally sustainable production. This dry cleaning method safeguards localized groundwater resources while eliminating effluent treatment infrastructure overhead.
As a professional industrial solution provider, Henan Jiujie Machine Co., Ltd. delivers not only equipment but also comprehensive production solutions that enhance the overall value chain. Utilizing AutoCAD-based engineering design systems and advanced machining centers, we offer high-precision, durable products at competitive prices, backed by pre-sales consulting, custom plant layout drawing, commissioning guidance, and lifetime spare parts supply.
AI Sensors, Automated Frequency Tuning, and Low-Carbon Milling Technologies
The convergence of traditional pneumatic gravity separation with high-resolution CCD optical sorting allows real-time adjustment of vibration frequency and air damper angles, automatically optimizing separation parameters based on incoming grain moisture and impurity density fluctuations.
Modern grain processing regulations mandate ultra-low dust emissions and explosion-proof containment. Next-generation separators incorporate pulse-jet dust collectors, anti-static filter sleeves, and spark-detection systems to adhere to stringent global safety codes.
To support multi-crop processing plants, modern grain separators feature quick-release clamp mechanisms, permitting complete sieve bed replacements within 15 minutes, drastically reducing downtime when switching between wheat, barley, maize, or legumes.
Expert Guidance on Grain Cleaning Mechanics, Operation, and Equipment Selection
High-capacity roller mills, pneumatic conveyors, packaging units, and lab testing equipment.
Jiujie Machine
