Optimized for processing specialty agricultural crops in Southern California. Designed with variable airflow and premium food-grade component layouts to meet local market regulations.
Engineered specifically for specialty roasters in the California area, removing stones from roasted and green beans without bean breakage.
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Food-grade SUS304 stainless steel build, suitable for small to mid-scale roasting configurations requiring sanitary handling.
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Equipped with high-precision sieve layers for sorting agricultural seeds and grains across California commercial farming networks.
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Capable of grinding cereal, wheat, maize, and cassava into high-grade flour. Designed for clean factory standards.
View Product SpecificationsThe Greater Los Angeles metropolitan region, encompassing Los Angeles, Orange, and San Bernardino counties, constitutes one of the largest logistics and food manufacturing hubs in North America. Serving as the primary gateway for imports arriving through the Port of Los Angeles and Port of Long Beach, local processors manage millions of tons of dry agricultural raw materials annually, including imported coffee beans, pulses, ancient grains, and wheat.
Operating a modern milling or roasting business in Southern California demands unparalleled purity standards. Foreign objects such as stones, pebbles, clods, glass fragments, and metallic residue are commonly mixed with grains at harvest. If left unchecked, these dense contaminants pose a double-threat:
As a leading supplier of grain separation machinery, Henan Jiujie Machine Co., Ltd. exports advanced gravity-based destoners configured specifically for the dynamic needs of California food processors. Our focus on waterless, low-noise, energy-efficient operational structures helps businesses satisfy local safety standards while maintaining optimal processing yields.
We combine advanced fluidization physics with robust CNC-machined structural parts to deliver consistent separation reliability.
Modern grain de-stoning relies on two distinct physical behaviors: fluidization and stratification. While agricultural products exhibit lower densities and relatively slow terminal velocities under airflow, stones and high-density soil particles remain heavy. Our machines leverage this difference to isolate stones with high precision.
The raw input material enters a feed gate and spreads evenly across the inclined sieve deck. A dedicated exhaust fan generates negative-pressure airflow through the woven wire mesh. By fine-tuning this airflow, the lighter grains or coffee beans hover in a semi-fluidized state, sliding smoothly down the incline. At the same time, the heavier stones sink to the surface of the screen deck.
Our gravity de-stoner systems feature dual-drive vibratory motor configurations. The oscillation frequency, combined with the deck angle, forces the heavy, sunken stones to move upward against the downward flow of the grains. This dual directional flow ensures clean separation, even when sorting stones of similar scale to the grains.
Looking to the future, Henan Jiujie is testing digital automation features, including variable frequency drives (VFD) paired with sensor-driven air controls. These technologies dynamically adjust air velocity to match variations in input moisture and bulk density, helping operators maximize throughput with minimal manual adjustments.
This mid-range equipment selection covers standard seed cleaning lines, high-throughput commercial milling platforms, and primary processing configurations.
Engineered to sort dry beans, peas, and lentils, this system separates field stones and clods from incoming produce.
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A high-capacity gravity stoner designed for large commercial mills, separating heavy foreign matter prior to milling cycles.
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Combines blowing and sorting to process various crop seeds, grain seeds, and dry herbs with minimal dust emission.
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Traditional design updated with modern safety features, creating high-flavor stone-ground flours for specialty bakeries.
View Product SpecificationsHenan 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.
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.
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Exporting food processing equipment into California requires careful attention to local environmental and industrial safety standards. Operating in jurisdictions regulated by the SCAQMD (South Coast Air Quality Management District) and Cal/OSHA means equipment must satisfy strict dust-mitigation and operator-safety guidelines.
Our gravity de-stoners operate under a sealed suction system. This negative-pressure design pulls air and fine particles inward, preventing dust from escaping into the facility. This matches Cal/OSHA workplace health mandates and minimizes localized dust emissions.
Water conservation is a top operational concern for California manufacturers. Traditional wet-washing systems for grains create significant wastewater, which is subject to strict disposal regulations. Our dry-separation gravity destoners eliminate wastewater treatment costs, aligning with regional sustainability goals.
Through the use of AutoCAD-based engineering design systems and advanced machining centers, we are able to provide high-precision, durable products at competitive prices. We are committed to offering complete pre-sales consultation, technical support, and reliable after-sales service. Customer satisfaction is always our top priority. We sincerely welcome partners and friends from all over the world to contact us and cooperate for mutual success.
Detailed technical answers for engineering and procurement departments in the Los Angeles and global markets.
Browse our complete catalog of industrial sorting and processing equipment. These systems support raw material preparation, cleaning, sorting, and milling applications.
An integrated cleaning solution designed to de-husk, clean, and de-stone rice within a space-efficient footprint.
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Designed for simplified operation in smaller processing environments, providing consistent dust-free separation.
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Capable of handling light spices, seasoning seeds, and grains, sorting out stones and sand via fine gravity grading.
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Built for larger milling lines, this unit removes stones from wheat and maize before they reach the grinding rolls.
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Features dual vibration motors and variable air velocity to clean large volumes of dense agricultural grains.
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Configured with specialized screen meshes to process soybeans, extracting field dirt and heavy clay stones.
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A complete engineering package that includes pre-cleaning, grading, destoning, grinding, and automated bagging systems.
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Designed to fit inline with existing processing plants, this suction unit removes heavy density impurities.
View Product SpecificationsGet in touch with our engineering team to receive customized layout drawings, mechanical configurations, and a comprehensive quote for your milling or roasting facility in Los Angeles or worldwide.
Jiujie Machine