Zhonggi (Shandong) Silicon Materials Co., Ltd. is a dedicated manufacturer of feed-grade silica products that serves animal nutrition companies across more than forty countries and regions. Headquartered in Shandong Province, one of China's most established chemical and mineral processing hubs, the company combines locally sourced raw materials with tightly controlled production processes. Its facilities are built around continuous production lines that can deliver thousands of metric tons of silicon dioxide each year, which allows buyers to secure both trial quantities and full container loads from a single supplier. The business focuses exclusively on silicon-based functional additives, so its technical team understands how particle size, surface area, and moisture content influence the behavior of premixes and finished feed. Buyers who want to review the company's history, certifications, and manufacturing philosophy can visit About Us for a detailed overview. Rather than acting as a trading intermediary, Zhonggi manages raw material selection, milling, classification, and packaging in house, which shortens lead times and keeps quality consistent from batch to batch.

Commitment to quality, innovation, and customer service shapes every decision the company makes, from the calibration of grinding equipment to the wording of export documentation. The quality team runs incoming inspections on every raw material shipment, and the production department records the key parameters of each batch in a traceable database. Innovation at Zhonggi means continuous refinement of surface treatment methods, dust control, and particle-size distribution rather than simply expanding output volume. Customer service is handled by a multilingual export team that answers technical questions, arranges samples, and coordinates logistics with freight forwarders and inspection agencies. This combination of manufacturing discipline and responsive communication is why many feed mills treat Zhonggi as a long-term partner rather than a one-off vendor. The company also invests in employee training, so operators, lab technicians, and sales engineers all speak the same technical language when a customer raises a formulation issue.

Feed silicon dioxide is an amorphous, feed-grade form of silicon dioxide (SiO₂) that is added to animal nutrition products at low inclusion rates to improve handling and stability. It is produced synthetically through precipitation, gelation, or flame hydrolysis, which yields a highly porous, chemically inert powder rather than the crystalline quartz found in sand. The most common commercial forms are precipitated silica, fumed silica, and silica gel, each with a different surface area, pore volume, and bulk density. Because the material is essentially insoluble and passes through the digestive tract without being metabolized, regulators treat it as a processing aid rather than a nutrient source. In practice, feed-grade silica acts as an anti-caking agent, a free-flow aid, and a carrier for liquid actives such as vitamins, essential oils, and enzymes. Its performance depends on three measurable properties: particle size distribution, specific surface area, and residual moisture content.

As an anti-caking agent, feed silicon dioxide coats hygroscopic particles and absorbs thin films of moisture that would otherwise cause clumping, bridging, and crusting inside silos and mixers. As a carrier silica, it provides a large internal surface area onto which liquid additives can be adsorbed, converting sticky oils and viscous concentrates into dry, pourable powders. As a flow aid, it reduces inter-particle friction and electrostatic attraction, so premixes and complete feeds discharge evenly from hoppers and dosing equipment. These three functions are closely related, and a single grade of silicon dioxide often delivers all three benefits simultaneously. Formulators value the material because it is chemically inert, has a neutral pH, and does not interfere with vitamin stability or mineral availability when used at typical dosages of 0.5% to 2%. Choosing the right grade therefore becomes a question of matching surface area and particle size to the specific powder system being produced.

In poultry feed, silicon dioxide is widely used to keep crumbled and pelleted rations free-flowing, particularly when formulations contain high levels of fat, molasses, or hygroscopic minerals. Broiler and layer premixes that include choline chloride, vitamin blends, and trace mineral packages benefit from the moisture-scavenging behavior of the additive. Swine diets, especially those for piglets and gestating sows, often contain milk replacers, whey powder, and organic acids that tend to cake under humid storage conditions. Adding a small percentage of feed-grade silica improves mixing uniformity, which in turn reduces the risk of nutrient segregation during transport and pneumatic conveying. Cattle and dairy rations rely on the same principle when mineral supplements, yeast cultures, and protected amino acids are blended into a total mixed ration. In each species, the goal is consistent nutrient delivery rather than a direct nutritional effect from the silica itself.

Aquaculture feeds present a special challenge because extruded sinking and floating pellets must remain stable in water while still releasing nutrients predictably. Feed silicon dioxide helps control moisture migration inside the pellet matrix and reduces the stickiness that can clog extrusion dies and coating drums. In pet food manufacturing, the additive supports the flow of dry kibble blends, powdered supplements, and palatant carriers without altering taste or aroma. Across all these segments, three operational benefits recur: improved flowability, better mixing uniformity, and longer shelf life. Feed mills that adopt a consistent silica grade typically see fewer production stoppages, less product rejected for caking, and more predictable dosing accuracy on volumetric feeders. These gains are small per ton but compound quickly across a high-volume plant.

Zhonggi supplies feed silicon dioxide in several purity levels, typically ranging from 98% to 99.8% SiO₂ on a dry basis, depending on the intended application and regulatory market. Particle size can be adjusted from a few micrometers up to coarse granular grades, and specific surface area is available across a broad range, from roughly 50 m²/g to more than 300 m²/g for high-adsorption carrier types. Moisture content is controlled below defined limits, usually under 5% and often under 2% for moisture-sensitive vitamin premixes. Bulk density, oil absorption, and pH are also specified on the certificate of analysis so formulators can predict how the powder will behave in a blender. A complete product overview, including data sheets for each grade, is available on the Products page. Because feed formulations vary widely, Zhonggi treats every specification as a starting point that can be tuned to a customer's process.

Customizable specifications matter because a poultry premix, a shrimp feed, and a dry pet food blend each place different demands on a functional additive. A producer who needs strong anti-caking performance may prefer a finer, higher-surface-area grade, while a plant dosing through a pneumatic system may choose a denser, low-dust granule. Where a liquid vitamin or essential oil must be converted into a free-flowing powder, a high-porosity carrier silica with carefully controlled pore volume usually works best. Moisture limits can be tightened for tropical climates, and pH can be held within a narrow band to avoid interactions with acidic preservatives. Packing density and flowability indexes are also reported so that engineers can model hopper discharge behavior before committing to a full production run. All of these parameters are confirmed on the batch certificate, which means the specification a customer approves is the specification they receive.

High purity and consistent quality are the first reasons feed manufacturers choose Zhonggi, because inconsistencies in an additive ripple through an entire premix line. The company sources controlled raw materials and uses in-line monitoring to keep silica content, particle size, and moisture within narrow tolerances. Competitive factory pricing follows directly from integrated production, since there is no intermediary margin added between the plant and the buyer. Stable bulk supply is equally important: Zhonggi maintains sufficient capacity and raw material inventory to fulfill repeat container orders without forcing customers to re-qualify a new supplier mid-season. Buyers can request samples and compare grades side by side before placing a commercial order, which removes much of the risk from switching suppliers. For a purchasing manager, predictability of both price and quality is worth more than a one-time discount.

Advanced production lines and strict quality control allow Zhonggi to deliver silicon dioxide with low dust generation, uniform color, and reliable dispersibility. The plant operates modern milling, classification, and packaging equipment, and each line is cleaned and inspected between product changeovers to prevent cross-contamination. Fast delivery is supported by established relationships with freight forwarders and inspection companies, so export orders move smoothly through documentation and customs. The company's export experience covers North America, Europe, Southeast Asia, the Middle East, and Latin America, which means its team already understands regional labeling and import requirements. Responsive support is another differentiator: technical questions are answered by people who work with the product daily, not by a generic call center. This combination of manufacturing depth and commercial flexibility is what keeps customers returning season after season.

Quality assurance at Zhonggi begins with supplier qualification and continues through batch release, so every shipment is supported by documented evidence rather than verbal assurances. The company operates under recognized management systems, including ISO 9001 for quality management and GMP-oriented practices that align with feed and food additive expectations. Depending on the destination market, products can be supplied to meet feed-grade or food-grade requirements, and documentation can be prepared for FDA-related inquiries where applicable. Each batch is tested for silica content, particle size distribution, moisture, pH, heavy metals, and microbiological indicators before it is released for packing. A certificate of analysis accompanies every lot, and a material safety data sheet is provided for handling, storage, and transport planning. Traceability is maintained from raw material receipt to finished pallet, so any question raised months later can be answered with specific production records. The company's latest announcements and quality updates are published on the News page.

Standard packaging for feed silicon dioxide includes 25 kg multi-wall paper or PE-lined bags, 500 kg and 1000 kg jumbo bags, and customized configurations for customers with special handling requirements. Small trial packs are available for laboratory evaluation, while full container loads can be palletized or floor-loaded depending on freight economics. Private-label bags printed with the customer's brand, language, and regulatory text can be arranged for established orders. Bulk tanker delivery is possible in some regions for very large volume users. Each package is sealed and labeled with batch number, net weight, production date, and handling instructions. Packaging choices are confirmed in writing before shipment, so there is no ambiguity at the port of destination.

Safe storage requires a cool, dry, well-ventilated area away from strong acids, oxidizers, and sources of moisture. Bags should be stacked on pallets rather than directly on concrete floors, and stacks should be kept below the height recommended to avoid compression damage. Once a bag is opened, the remaining product should be resealed or transferred to a clean, dry container to prevent moisture pickup and airborne contamination. Feed silicon dioxide is not classified as a hazardous material under normal transport regulations, but dust control measures such as masks and local exhaust ventilation are recommended during handling. Global shipping options include FCL, LCL, air freight for urgent samples, and courier delivery for small technical quantities. The export team prepares commercial invoices, packing lists, certificates of origin, and any market-specific documents required by the buyer.

Zhonggi offers OEM and ODM services for feed and pet food companies that want a silicon dioxide product matched to their own process and brand. Tailored particle size, surface area, moisture limit, and bulk density can be developed through laboratory trials and pilot batches before commercial scale-up. Packaging can be customized with private labels, multilingual labels, and customer-specific bag designs. Formulation support is available for companies developing new premixes, liquid-to-powder conversions, or carrier-based additive systems. Technical staff can advise on inclusion rates, blending sequences, and storage conditions that maximize the benefit of the additive. Requests for customized specifications are handled through the Customize page, where customers can describe their requirements and receive a tailored proposal. This approach lets smaller brands access the same functional additive technology used by large integrators.

Prospective buyers can request a quotation, a free sample, or a technical consultation directly from the Zhonggi sales team. The fastest route is to send an email describing the application, target specification, packaging preference, and destination port, along with an estimated annual volume. Phone and online inquiry forms are also available, and the team typically responds within one business day. Sample shipments are usually dispatched within a few days, while commercial production lead times depend on the grade, quantity, and current order book. Buyers who want to review the full product range and company background before making contact can start from the Home page. Detailed technical data, certificates, and quotations are provided in writing so that procurement and quality teams can evaluate the offer internally.

Feed silicon dioxide is used as an anti-caking agent, a flow aid, and a carrier for liquid additives in premixes and complete feeds. It keeps hygroscopic ingredients such as vitamins, minerals, and organic acids free-flowing and evenly distributed. Typical inclusion rates range from 0.5% to 2%, depending on the formulation and the handling problems being solved.

Yes, when it is produced to feed-grade or food-grade standards and used at approved inclusion rates. The material is chemically inert, insoluble, and not metabolized, so it passes through the animal without contributing to nutrient load. Buyers should always request a certificate of analysis and confirm that heavy metals and microbiological limits meet local regulations.

Most premix applications use between 0.5% and 2% by weight, with carrier applications sometimes requiring higher levels. The exact dosage depends on the moisture sensitivity of the ingredients, the target flowability, and the surface area of the grade selected. Zhonggi's technical team can recommend a starting point based on your formulation and blending equipment.

Fine silica particles coat the surface of hygroscopic ingredients and absorb thin moisture films before they can form bridges between particles. This prevents clumping, crusting, and bridging in silos, hoppers, and mixers. The effect is physical rather than chemical, which is why the additive does not alter the nutritional value of the feed.

Fumed silica is one type of silicon dioxide, produced by flame hydrolysis, and it typically has a very high surface area and low bulk density. Feed silicon dioxide is a broader category that also includes precipitated silica and silica gel grades. The best choice depends on whether you need maximum anti-caking performance, high liquid absorption, or low dust generation.

Minimum order quantities vary by grade and packaging, but trial quantities and small sample packs are available for evaluation. Commercial orders can range from a few hundred kilograms to full container loads of 20 to 25 metric tons. Zhonggi's export team will confirm the exact MOQ for your target specification and destination.

Yes, Zhonggi provides samples so that quality and production teams can test the product in their own process. Customers normally cover the courier cost for sample shipments, which is often credited against the first commercial order. Samples are usually dispatched within a few working days after the specification is confirmed.

Lead times depend on the grade, quantity, packaging, and current production schedule. Standard grades in regular packaging are often ready for shipment within two to four weeks, while customized specifications may require additional pilot or production time. The sales team provides a written schedule with every quotation.

Common payment terms include T/T and L/C at sight, and other arrangements can be discussed for established customers. The exact terms depend on order value, destination, and the commercial history between both parties. All payment details are confirmed in the proforma invoice before production begins.

Store feed silicon dioxide in a cool, dry, well-ventilated area, ideally on pallets and away from acids, oxidizers, and moisture sources. Keep bags sealed until use, and reseal partially used bags to prevent moisture pickup and contamination. Under these conditions, the product retains its flow and anti-caking performance throughout its stated shelf life.