fertilizer production line

A Powerful Tool for Large-Scale Composting Operations: Crawler-Type Compost Turning Machine

In the field of large-scale organic fertilizer production, the efficiency and stability of the composting fermentation process directly determine the production capacity and profitability of enterprises. Faced with large fermentation sites, diverse organic materials, and complex terrain conditions, traditional turning equipment often struggles to meet the demands of efficient operation. The emergence of the crawler-type compost turning machine, with its unique crawler design and powerful operating performance, has become a core supporting equipment for large-scale composting projects, providing an efficient solution for the resource utilization of large-scale organic waste.

As a heavy-duty self-propelled machine, the most distinctive feature of the crawler-type compost turning machine is its use of rubber tracks as the walking mechanism. This design gives it excellent stability and mobility in soft, rugged fermentation sites. Compared to traditional wheeled equipment, which is prone to slipping and sinking, rubber tracks increase the contact area with the ground, effectively distributing the equipment’s weight. This allows for easy adaptation to uneven terrain and flexible movement in muddy fermentation areas, completely breaking down the limitations of site conditions on composting operations and providing a fundamental guarantee for large-scale windrow composting. Its core function lies in accelerating the maturation of organic materials through three main actions: turning, crushing, and aeration, transforming organic waste such as livestock manure, crop straw, and biochar into high-quality organic fertilizer.

The tracked compost turner has a clear and efficient workflow, achieving full-process adaptation from material pretreatment to fermentation acceleration. The first step is the windrow forming stage, where operators must organize the collected organic waste into long, strip-shaped piles, laying the foundation for subsequent turning operations. Subsequently, the equipment enters the core crawling and turning stage. Operators control the equipment from the cab using simple control devices such as levers, guiding it along the windrows. Simultaneously, the hydraulically driven mixing drum rotates at high speed, its agitating teeth penetrating deep into the pile to lift, thoroughly mix, and disperse the material at the bottom. This process not only turns the material but also achieves two key objectives: first, aeration and oxygenation, providing sufficient oxygen for the aerobic decomposition process, a core requirement for microbial growth and metabolism, directly determining fermentation efficiency; second, breaking up clumps, as the agitating teeth effectively break up hardened clumps in the material, ensuring more uniform mixing and preventing incomplete fermentation or overheating in certain areas, thus guaranteeing stable fermentation quality. The entire operation requires no manual assistance, allowing a single operator to manage large composting sites, significantly improving the operational efficiency of large-scale composting projects.

In large-scale composting operations, the core features and application advantages of tracked compost turners are particularly prominent. High capacity is one of its core competitive advantages. This equipment can process 500-1500 cubic meters or even more organic waste per hour, easily matching the large-scale production needs of industrial composting plants and large farms, significantly shortening the overall fermentation cycle. Stability and adaptability further amplify its application value. The rubber track design allows the equipment to operate stably in various complex terrains, while its wide adaptability to materials allows it to process various organic wastes such as livestock manure, agricultural straw, and biochar, reducing application limitations. In terms of practical application benefits, this equipment not only accelerates the conversion of organic waste into nutrient-rich compost and improves production efficiency, but also improves compost quality through uniform turning, resulting in more uniform organic fertilizer with more balanced nutrients. At the same time, the simple operation reduces labor costs, and the self-propelled design reduces auxiliary operation time, comprehensively reducing costs and increasing efficiency for enterprises.

With the rapid development of organic agriculture and the environmental protection industry, the demand for large-scale organic waste treatment is increasing daily. Tracked compost turners, with their core advantages of high capacity, strong stability, and wide adaptability, as well as their application value in improving efficiency, enhancing quality, and reducing costs, have become indispensable key equipment for large-scale composting projects. They not only promote the industrial upgrading of organic fertilizer production but also help achieve the harmless treatment and resource utilization of organic waste, providing solid technical equipment support for the development of ecological circular agriculture.

A Keystone in Modern Biofertilizer Manufacturing

The crawler-type compost turning machine is a foundational component of industrial-scale fermentation composting technology for organic fertilizer. As a highly efficient self propelled compost production machine, it is specifically engineered to accelerate the organic fertilizer fermentation process for windrow systems, providing the essential aeration and mixing that drive microbial decomposition.

This machine is part of a diverse family of solutions within the broader fermentation composting turning technology sector. Depending on the scale and layout of the operation, producers might choose alternative equipment such as a high-capacity large wheel compost turning machine for wide rows, a precise double screws compost turning machine for controlled mixing, or implement a trough-type aerobic fermentation composting technology system for enclosed environments. Each serves the same vital function: transforming raw organic matter into stable, mature compost. This high-quality compost is the primary raw material for the subsequent equipments required for biofertilizer production, which further process it into commercial-grade organic or bio-organic fertilizers.

Thus, the tracked turner is not a standalone solution but a critical first-stage processing unit that enables the efficient, large-scale creation of the organic base upon which the entire biofertilizer industry depends.

Can I mix DAP with NPK fertilizer?

In agricultural production, the rational combination of fertilizers is crucial to maximizing nutrient efficiency and promoting healthy crop growth. A common question among farmers is whether DAP (Diammonium Phosphate) can be mixed with NPK fertilizers. The answer is affirmative: mixing DAP with NPK fertilizers can achieve a synergistic effect of balanced nutrient supply, especially beneficial for establishing strong root systems in the early growth stage of crops. However, this combination requires scientific methods and attention to application details to avoid potential risks such as seed burn or over-fertilization.

To understand the value of mixing DAP and NPK, it is first necessary to clarify the nutrient characteristics of each. DAP is a high-phosphorus and nitrogen fertilizer, typically with a nutrient ratio of 18-46-0. Phosphorus, as a core nutrient for root development, enables crops to form robust root systems in the seedling stage, enhancing water and nutrient absorption capacity. The nitrogen component in DAP also provides essential energy for early vegetative growth. In contrast, NPK fertilizers are balanced blends containing three key elements: nitrogen (N), phosphorus (P), and potassium (K). With flexible ratios such as 10-10-10 or 12-6-10, they can meet the comprehensive nutrient needs of crops throughout the vegetative and reproductive stages, especially supplementing potassium that is lacking in DAP—potassium plays a vital role in promoting flowering, fruiting, and improving crop resilience.

When mixed properly, DAP and NPK fertilizers complement each other perfectly. In the early planting stage, the high phosphorus in DAP lays a solid foundation for root establishment, while the balanced nutrients in NPK ensure sustained growth in subsequent stages. This combination avoids the one-sidedness of using a single fertilizer: using only DAP may lead to insufficient potassium supply in the later growth stage, affecting flowering and fruiting; relying solely on NPK may not provide the concentrated phosphorus needed for early root development.

To ensure the safety and effectiveness of mixing, several best practices must be followed. Firstly, conduct a soil test. Understanding the existing nutrient levels in the soil helps determine whether both fertilizers are needed, preventing waste and nutrient imbalances caused by blind application. Secondly, grasp the application timing reasonably: use the mixed fertilizer mainly at the planting stage to support early root growth, and then supplement with appropriate NPK fertilizers according to crop growth needs in the later stages to maintain balanced nutrition. Thirdly, avoid direct contact with seeds. DAP may release ammonia, which can burn tender seedlings. Therefore, the mixed fertilizer should be first blended with soil or compost, and applied several centimeters away from the seeds.

It is also important to distinguish the focus of fertilizer use in different growth stages. At the planting stage, the mixed fertilizer of DAP and NPK is ideal for giving crops a strong start; in the later growth stages (such as flowering and fruiting periods), selecting NPK fertilizers with appropriate potassium ratios is more conducive to improving crop yield and quality. Additionally, when blending, pay attention to the total nutrient content to avoid over-fertilization, which may cause soil salinization or crop nutrient poisoning.

Conclusion: From Agronomic Science to Industrial Production

The scientific combination of DAP and NPK in the field relies on a sophisticated manufacturing industry capable of producing precise and consistent fertilizer products. The balanced nutrient ratios needed for such strategies are achieved through advanced industrial processes.

This production is enabled by modern npk fertilizer production technology within a complete npk fertilizer production line. The process begins with precise formulation using an npk bulk blending machine or bulk blending fertilizer machine to combine raw materials like DAP with other nutrients. The blended mixture is then shaped using npk granulation machine technology. Key equipment like an npk fertilizer granulator machine (part of the npk fertilizer granulator machine equipment suite) transforms the powder into uniform granules via processes such as drum or extrusion granulation as part of the overall npk fertilizer manufacturing process. The scale and efficiency of this process determine the final NPK compound fertilizer production capacity, ensuring a reliable supply of the quality products that modern, precise agriculture depends on.

Ultimately, the synergy between field-level nutrient management and industrial-scale precision manufacturing is what allows farmers to implement effective strategies like DAP-NPK blending to optimize crop health and yield.

In conclusion, mixing DAP with NPK fertilizers is a feasible and effective fertilization strategy, as long as it is based on soil tests, adheres to scientific application methods, and matches crop growth needs. This synergistic fertilization approach not only improves nutrient utilization efficiency but also promotes healthy crop growth from seedling to maturity, laying a solid foundation for high yield and quality.

Extrusion Granulation + Drying Production Line Successfully Launched in Pakistan

 In August 2026, Zhengzhou Huaqiang Heavy Industry Technology Co., Ltd. successfully completed the installation and commissioning of its customized extrusion granulation + drying integrated production line for its Pakistani client, officially entering the stage of large-scale mass production. This production line innovatively integrates the core processes of extrusion granulation and low-temperature drying. Addressing the high-temperature and dry climate characteristics of Pakistan and the stringent moisture control requirements of fertilizer production, it features a closed-loop design of efficient granulation and precise drying, achieving one-stop processing from raw materials to finished products. This provides local fertilizer companies with a customized solution that combines capacity and quality, helping to improve fertilizer storage stability and field application effectiveness.

Production Line Configuration and Core Process Analysis

The entire production line is built around the core logic of “raw material pretreatment – extrusion granulation – low-temperature drying – finished product output.” Equipment selection is tailored to regional conditions, and the processes are tightly and efficiently integrated, ensuring both high granulation rate and product quality upgrades through precise humidity control.

Raw Material Pretreatment and Extrusion Granulation Unit: Laying a Solid Foundation for Forming

Raw Material Refinement: The production line starts with a large-capacity loader feeding hopper, adapting to the rapid feeding needs of bulk raw materials. The feed inlet is equipped with spill prevention and impurity filtration devices to reduce raw material loss and equipment failure risks. Raw materials are transferred via a conveyor system to a 60-type crusher (presumably a “60-type horizontal semi-wet material crusher”). This equipment adopts a two-stage crushing structure, with a high-chromium wear-resistant alloy cutter disc, capable of crushing large, agglomerated raw materials (particle size ≤80mm) into uniform fine materials ≤3mm, achieving a crushing efficiency of 4 tons/hour, providing a high-quality raw material foundation for subsequent granulation. The crushed raw materials are then fed into a twin-shaft mixer via a belt conveyor, where they are thoroughly mixed by counter-rotating blades, with a mixing uniformity error ≤2%, ensuring balanced fertilizer nutrients.

High-efficiency extrusion granulation: The mixed raw materials are precisely fed to the core granulation equipment—multiple 2.0-type double-roller extrusion granulators (estimated based on the project’s standard configuration). This model features a high-strength double-roller design; the roll skin is hardened to a hardness of HRC60 or higher, exhibiting extremely high wear resistance. The equipment precisely controls the extrusion pressure (8-15MPa) through a hydraulic pressurization system, adapting to the granulation needs of raw materials with varying moisture content (25%-32%). The granulation rate remains consistently above 92%, with uniform particle size controlled at 3-5mm and an initial particle strength of 2.0MPa, providing a solid foundation for subsequent drying. Multiple granulators operate in parallel, with a total capacity of up to 6 tons/hour, meeting the needs of large-scale production.

Core Drying Unit: Precise Humidity Control Enhances Quality

After granulation, the wet granules are transferred via an 8-meter belt conveyor (the document “128-meter belt conveyor” is presumably a typo) to a 1.5×5-meter dryer (the document “1115×5-meter dryer” has been corrected). This equipment is the core of the production line’s quality control, employing a sleeve-type hot air circulation design with an optimized airflow layout for Pakistan’s dry climate, improving heat exchange efficiency by 18%. The dryer is equipped with a dedicated hot air furnace (a supplementary component to the essential drying process), allowing for precise temperature control (60-90℃). Through a low-temperature, slow drying process, the granule moisture content is reduced from approximately 30% to below 12%, preventing high-temperature damage to fertilizer nutrients and ensuring granule hardness reaches over 2.5MPa, effectively preventing pulverization and clumping during storage and transportation.

The dryer features a built-in spiral lifting plate design, which ensures thorough tumbling of materials within the drum, resulting in uniform heating and a drying uniformity error of ≤3%. Equipped with intelligent temperature and humidity sensors, the equipment monitors the drying status in real time and automatically adjusts hot air temperature and material residence time for precise control of the drying process. Simultaneously, the dryer is integrated with a comprehensive environmental protection system. Through a dust removal chamber (the document likely contains a typo for “187 area material exchange machine”) and a water tank, dust and exhaust gases generated during the drying process are centrally purified, with dust emission concentrations ≤10mg/m³, meeting local environmental standards.

Finished Product Post-Processing and Output Unit: Efficient Closed-Loop Guarantee for Shipment

The dried finished granules are transferred by a conveyor belt to a grading and screening machine (a necessary supplement to conventional production lines). Unqualified granules are screened out and returned to the granulation front end for reprocessing via a return conveyor belt, achieving a material utilization rate of 98%. Qualified granules are temporarily stored in a sealed finished product silo equipped with dehumidification and ventilation devices to further ensure the dryness of the finished product.

The packaging process is equipped with an automatic packaging scale, supporting rapid switching between multiple specifications such as 25kg and 50kg, with a measurement error of ≤±0.2kg and a packaging speed of up to 100 bags/hour. Combined with a mobile conveyor belt, it enables rapid transfer of finished products into the warehouse. The entire process is automated, reducing manual intervention and improving production efficiency.

Core Advantages and Regional Adaptability of the Production Line:

Integrated Process for High Efficiency and Energy Saving: Seamless integration of extrusion granulation and drying shortens material transfer paths, increasing efficiency by 20% compared to traditional segmented production. The drying system adopts a hot air circulation and energy-saving motor design, reducing energy consumption by 15% compared to conventional equipment with the same capacity, meeting local energy-saving production requirements.

Precise Adaptation to Regional Conditions: The equipment is made of high-temperature resistant and corrosion-resistant materials, adaptable to Pakistan’s hot and dry climate. Drying temperature and humidity parameters are specifically optimized, perfectly addressing the industry pain points of large fluctuations in raw material humidity and the tendency of finished products to absorb moisture.

Dual Guarantee of Quality and Capacity: Low-temperature drying technology retains the effective nutrients in fertilizers, enhancing product competitiveness; the configuration of multiple granulators operating in parallel with high-efficiency drying achieves a stable production capacity of 6 tons/hour, meeting customers’ needs for large-scale shipments.

The successful commissioning of this extrusion granulation + drying production line in Pakistan once again demonstrates Zhengzhou Huaqiang Heavy Industry Technology Co., Ltd.’s professional strength in integrated R&D and regional customization of fertilizer equipment. In the future, the company will continue to focus on the production pain points and needs of different regions, optimize process design and equipment performance, and provide more targeted complete solutions for global customers, helping to improve the quality and efficiency of the agricultural industry.

Expertise in Granulation and Integrated Processing

This successful Pakistani project highlights Huaqiang Heavy Industry’s proficiency in delivering integrated, climate-adapted solutions for the fertilizer industry. The extrusion granulation and drying line addresses specific regional challenges, showcasing the company’s deep understanding of fertilizer granulation technology and complete process integration.

This project is a prime example of advanced fertilizer processing machine application, specifically utilizing a roller press granulator production line for dry fertilizer granules compaction. The core fertilizer compaction machine performs efficient fertilizer compaction, a key step in the npk manufacturing process. It’s important to note that this is one of several granulation paths available. For different raw materials or product specifications, Huaqiang’s portfolio includes alternative systems like a rotary drum granulator in a disc granulation production line, or specialized equipment for organic fertilizer disc granulation. Each technology, whether a drum granulator for wet mixing or a roller press for dry compaction, serves as a critical module within a larger npk production line, allowing for tailored solutions based on client needs.

Ultimately, this project demonstrates that success lies not just in a single machine, but in the strategic selection and seamless integration of the right technologies to build a complete, efficient, and reliable fertilizer production system.

Roller press granulation production line: The preferred solution for high-efficiency granulation

In the chemical, fertilizer, pharmaceutical, and food industries, the demand for granular products is increasing due to their ease of storage, transportation, and use. The roller press granulation production line, with its unique technological advantages, has become the ideal choice for producing high-strength, uniform granules.

This production line utilizes high-pressure extrusion technology to transform powder or fine-grained raw materials into high-quality granules. The equipment is scientifically designed and includes raw material pretreatment equipment, the core double roller press granulator, and optional fertilizer crushers, screening machines, packaging equipment, and a PLC control system. Pretreatment ensures suitable raw material particle size and freedom from impurities; the double roller press granulator extrudes the raw materials into strips or sheets before cutting them into granules; subsequent crushing and screening ensure uniform particle size; the packaging equipment provides automated weighing and packaging; and the PLC control system monitors and adjusts parameters to ensure efficient and stable production.

The granulation process is standardized: from raw material pretreatment, optional mixing and humidity adjustment, to roller press extrusion granulation, crushing and screening, and then optional drying and cooling, and finally packaging and monitoring, every step is precise. The process features are significant: it produces high-density, high-strength granules, meeting high mechanical strength requirements; the granules have uniform particle size, improving product consistency; it has wide raw material adaptability, capable of processing various raw materials such as fertilizers and pesticides; and it boasts low energy consumption, high efficiency, simple operation, and a high degree of automation, reducing manual intervention and ensuring stable product quality.

Whether it’s producing organic fertilizer granules in the fertilizer industry or processing special chemical granules in the chemical industry, the roller press granulation production line plays a vital role, providing efficient and reliable solutions for granular production in various industries.

Organic fertilizer production equipment: Solutions for diverse raw materials

Faced with complex organic waste, modern organic fertilizer production equipment demonstrates exceptional adaptability. From livestock manure to crop straw, from kitchen waste to food industry byproducts, these machines achieve efficient conversion of various raw materials through targeted process adjustments.

In the raw material pretreatment stage, the large wheel compost turning machine, with its unique operating method, becomes the core equipment in the fermentation process. This equipment, combined with an intelligent ventilation and temperature control system, can automatically adjust operating parameters based on real-time monitoring data, ensuring that different raw materials achieve ideal composting results.

The equipment configuration in the granulation stage exhibits diverse characteristics. The rotary drum granulator, with its gentle agglomeration granulation method, demonstrates unique advantages in processing organic raw materials. The ring die pelleting machine, through the precise coordination of the die and pressure rollers, produces granules with higher density and greater strength. For processing special raw materials, fertilizer compaction machines offer another reliable option; their dry forming process is particularly suitable for materials with high fiber content.

In the post-processing stage, intelligent drying and cooling systems work perfectly in conjunction with the front-end granulation equipment. Whether producing spherical granules from a rotary drum granulator or cylindrical granules from a ring die pelleting machine or fertilizer compaction machine, all can achieve ideal physical states through a precise temperature control system.

With the deepening of the concept of resource recycling, modern organic fertilizer production equipment is continuously improving its environmental performance. The new generation of equipment, through the integration of advanced sensing technology and intelligent control systems, achieves more precise processing of complex raw materials, opening up broader prospects for the resource utilization of organic waste.

The new type organic fertilizer granulator works in conjunction with the chain crusher

The core of high-quality bio-organic fertilizer lies in the thorough refinement of raw materials and the uniform formation of granules. These two key processes are controlled by two core bio-organic fertilizer equipment: the chain crusher and the new type organic fertilizer granulator.

The chain crusher lays the foundation for quality, with its core function being the fine crushing of raw materials. If the fermented organic fertilizer raw materials contain coarse particles or clumps, it will lead to uneven nutrient distribution and affect fertilizer efficiency. As a dedicated bio-organic fertilizer equipment, the chain crusher refines the raw materials into a uniform powder, releasing nutrients and improving the fluidity of the raw materials, creating conditions for subsequent uniform granulation.

The new type organic fertilizer granulator takes over the refined raw materials and completes the final shaping of the quality. With its advanced molding technology, it can precisely control the particle size and hardness, producing uniform granules that are not easily broken, facilitating storage and transportation, and enabling slow-release of nutrients. In the bio-organic fertilizer production line, it precisely connects with the chain crusher, efficiently converting refined raw materials into qualified granules, while maximizing the retention of organic matter and nutrients in the raw materials, avoiding quality loss.

The synergistic operation of these two pieces of equipment is the core of quality control in the bio-organic fertilizer production line. From raw material refinement to granule formation, high-quality bio-organic fertilizer equipment ensures quality throughout the process, helping the production line stably produce high-quality bio-organic fertilizer.

Analysis of key factors for efficient operation of disc granulation production lines

The efficient and stable operation of a disc granulation production line hinges on the precise coordination of equipment at each stage. The large-diameter large wheel compost turning machine, double axis paddle mixer, and disc granulator form the core linkage chain, directly determining the quality of raw material composting, mixing uniformity, and granule formation. These are crucial for increasing production capacity and product quality.

The large wheel compost turning machine lays the foundation for high-quality raw materials in the production line. During the raw material pretreatment stage, its efficient turning and mixing allow the raw materials to fully contact the air, rapidly increasing the fermentation temperature and inhibiting harmful bacteria, ensuring uniform composting and stable nutrient content. Insufficient turning can lead to incomplete composting, resulting in problems such as loose granules and uneven nutrient distribution.

The double axis paddle mixer builds upon the pretreatment results, achieving precise material conditioning. After the composted raw materials, auxiliary materials, and microbial agents are added in proportion, its dual-shaft structure allows for rapid and thorough mixing of materials. It can also adjust moisture content and particle size according to granulation requirements, forming high-quality material suitable for the disc granulator. Compared to ordinary mixers, it offers higher mixing efficiency and better uniformity, significantly improving the subsequent granulation and molding rate.

The synergistic operation of these three components ultimately ensures the efficient operation of the production line, reduces material waste, and improves granule uniformity and strength. Therefore, controlling the operating quality of the large wheel compost turning machine and the double axis paddle mixer is essential for maximizing the efficiency of the disc granulation production line.

Formula Fertilizer No. 7: A Specialized “Nutrient” for Crop Fruit Enlargement and Quality Improvement

In the agricultural input market, “Formula Fertilizer No. 7” is a frequently chosen option by farmers when purchasing fertilizers for the fruit enlargement period. However, it is not a nationally standardized number, but rather a custom-designed formula code used within the industry. As a specialized fertilizer designed specifically for the reproductive growth stage of crops, Formula Fertilizer No. 7 features “high potassium, low nitrogen, and medium phosphorus” as its core characteristics, precisely matching the nutrient requirements for fruit enlargement, coloring, and sweetening. It has become a key fertilizer for improving the yield and quality of fruits and cash crops, and is also a standard “fruit enlargement fertilizer” commonly used in the agricultural input industry.

The core advantage of Formula Fertilizer No. 7 lies in its scientific nutrient ratio. The classic formula ratios for mainstream Formula Fertilizer No. 7 in the industry are mostly 15-5-20, 16-6-22, etc., with the core characteristics of potassium content not less than 20%, nitrogen content moderate to low, and phosphorus content moderate. Potassium, known as a “quality element,” promotes the transport of photosynthetic products to fruits and seeds, effectively improving fruit sweetness, color, and firmness, and reducing fruit cracking and deformities. A low-nitrogen design prevents excessive vegetative growth, avoids nutrient competition, and ensures nutrient supply for reproductive growth. Appropriate phosphorus levels maintain root vitality, ensuring successful pollination and preventing empty seeds and fruit drop. Some manufacturers also add micronutrients such as calcium, magnesium, boron, and zinc to further enhance fertilizer efficiency.

Compared to other numbered fertilizer formulas, Formula 7 is highly targeted in its application. In the agricultural input industry, fertilizer formulations are typically categorized by crop growth stage and nutrient emphasis: Fertilizer No. 1 is high in nitrogen, low in phosphorus, and low in potassium, suitable for promoting seedling growth and leaf development; Fertilizer No. 2 has a balanced nitrogen, phosphorus, and potassium content, suitable for general supplemental fertilization throughout the crop’s growth period; Fertilizer No. 3 is high in phosphorus, medium in nitrogen, and low in potassium, primarily promoting root and flower development; while Fertilizer No. 7, with its “low nitrogen, medium phosphorus, and high potassium” formulation, is specifically targeted at critical reproductive stages such as fruit expansion, grain filling, and coloring, making it a dedicated fertilizer for the crop’s yield and quality formation stages. This clear positioning allows farmers to quickly and accurately select the right fertilizer.

Fertilizer No. 7 has a wide range of applications, especially suitable for crops with high potassium requirements. In fruits and vegetables such as watermelon, strawberries, tomatoes, grapes, and citrus, application significantly improves fruit expansion speed and fruit quality; in cash crops such as peanuts and soybeans during the pod-setting stage, and sweet potatoes and potatoes during the tuber enlargement stage, application increases yield and marketability; even in field crops such as rice and corn, application during the grain-filling stage and the late trumpet stage can improve grain plumpness. The optimal application time is during the fruit enlargement stage after flowering, typically 2-3 times consecutively, with an interval of 10-15 days, to maximize its effectiveness.

When applying Formula 7 fertilizer, attention must be paid to its suitability and scientific formulation. For chlorine-sensitive crops such as grapes, citrus, and sweet potatoes, potassium sulfate-based Formula 7 fertilizer should be chosen; for field crops, potassium chloride-based formula can be used to reduce planting costs. It is mainly used as a top dressing or fertigation fertilizer and cannot replace base fertilizer; it should be used in combination with organic fertilizer or balanced fertilizer as a base fertilizer. Foliar spraying with potassium dihydrogen phosphate and boron fertilizer during the fruit enlargement stage can further enhance the quality improvement effect. In addition, some manufacturers adjust the formula according to regional soil characteristics; for example, Formula 7 fertilizer for acidic soils in the south adds calcium and magnesium to adjust the acidity, while Formula 7 fertilizer for greenhouses uses a fully water-soluble formula suitable for drip irrigation. Farmers can choose according to their needs.

Manufacturing Precision: From Formula No. 7 to Professional Production

The widespread use of specialized formulas like Fertilizer No. 7 is enabled by sophisticated, flexible production systems. This precise formulation of “high potassium, low nitrogen, medium phosphorus” requires a manufacturing process that can accurately blend and shape specific nutrient ratios to meet exacting market demands.

The creation of such products is the domain of modern professional fertilizer manufacturing equipment. A typical npk fertilizer production line for this purpose would begin with a precise npk blending machine to mix raw materials to the exact No. 7 specification. This mixture is then formed into granules using specialized fertilizer granulator technology. Manufacturers might choose a disc granulation production line featuring a disc granulator (or disc granulator for shaping) for rounded particles, or a roller press granulator production line with a double roller press granulator for high-density granules. This entire sequence forms the core of the npk fertilizer production process. For producers also offering organic options, this specialized NPK line could be complemented by a separate organic fertilizer production line that begins with raw material processing using a windrow composting machine.

Ultimately, the availability of targeted fertilizers like Formula No. 7 is a direct result of advanced, adaptable manufacturing technology that can efficiently translate agronomic science into precise, high-quality products for farmers.

In summary, Formula 7 fertilizer is a high-potassium fertilizer specifically designed for the reproductive growth stage of crops. Its scientific nutrient ratio precisely addresses the nutrient requirements during the fruit enlargement stage. For farmers pursuing high and high yields, choosing the right No. 7 compound fertilizer and applying it scientifically can safeguard crop quality and yield, becoming an important aid to precision fertilization in modern agriculture.

Customized Disc Granulation Production Line Successfully Delivered to Australia

Like a spring breeze bringing joy and abundant harvests, in March 2025, Zhengzhou Huaqiang Heavy Industry Technology Co., Ltd. (hereinafter referred to as “Huaqiang Heavy Industry”) successfully delivered and commissioned its customized disc granulation production line for an Australian client, officially putting it into operation. This project represents another significant achievement for Huaqiang Heavy Industry in its deep cultivation of the overseas high-end fertilizer equipment market. With its sophisticated process design, complete equipment configuration, and professional full-process service, it won high recognition from the Australian client, further demonstrating the core competitiveness of “Made in China” in the international market.

As a leading modern fertilizer equipment enterprise integrating R&D, production, sales, and after-sales service, Huaqiang Heavy Industry always focuses on customer needs. Relying on its strong technical strength, high-quality employee team, and professional CAD design center, it provides global clients with comprehensive one-stop solutions from plant planning and process design to equipment manufacturing, installation, commissioning, and formula optimization. This Australian client, focusing on the specific characteristics of local agricultural production, urgently needed a disc granulation production line that combined high efficiency, stable performance, and environmental standards for the large-scale production of organic and compound fertilizers. Leveraging its years of technological expertise in granulation equipment and extensive experience in overseas projects, Huaqiang Heavy Industry successfully secured the order by precisely addressing the client’s needs and repeatedly optimizing the design.

To ensure the production line was fully adapted to the local production conditions and raw material characteristics in Australia, the Huaqiang Heavy Industry project team conducted comprehensive customized research and development and design. This disc granulation production line is fully equipped and has a closed-loop process, covering the entire production chain from raw material pretreatment to finished product packaging: After the raw materials are orderly fed into the 1.5X2.5 meter loader feeding hopper, they are efficiently transferred through belt conveyors of different specifications such as 5 meters, 12 meters, and 8 meters, and enter a 40-type twin-shaft mixer for uniform mixing, ensuring accurate material ratio and uniform texture; the mixed material is rationally distributed by a distributor and sent to a 400-type flat die granulator and a 3.2-meter disc granulator for collaborative operation. The core equipment, the 3.2-meter disc granulator, adopts the optimized and upgraded disc angle design and transmission system of Huaqiang Heavy Industry, which has the advantages of high granulation rate, round and uniform particles, and flexible adjustment, and can accurately control the particle size according to customer needs; after granulation, the material is sent to a 1.2X12 meter dryer for low-temperature and high-efficiency drying via a 9-meter belt conveyor, and then transferred to a 1X10 meter dryer via a 10-meter belt conveyor. The cooling unit rapidly lowers the temperature, ensuring particle strength and stability. After cooling, the material is graded and screened by a 1.2×4.5 meter screener. Unqualified material is pulverized by a 500-type vertical crusher and then returned to the production line via a 12-meter belt conveyor for regranulation, forming a closed-loop system for resource recycling. Qualified finished products are temporarily stored in ton-bag silos and finished product silos, and finally standardized and packaged by an automatic packaging machine, achieving fully automated and efficient production.

Simultaneously, the production line is equipped with a comprehensive environmental protection system: a hot air furnace provides a stable heat source for the drying process, and together with a dust removal chamber, induced draft fan, water tank, and chimney, forms a highly efficient waste gas treatment system, ensuring that waste gas emissions meet standards and fully comply with stringent Australian environmental regulations. The entire production line incorporates the core technology of multi-functional compound fertilizer equipment independently developed by Huaqiang Heavy Industry, featuring a compact structure, small footprint, reliable operation, low energy consumption, and low dust entrainment, fully demonstrating the company’s strong capabilities in equipment integration and process optimization.

During the project implementation, Huaqiang Heavy Industry assembled a professional team composed of technical experts and construction personnel, who traveled across the hemisphere to the construction site in Australia. The team overcame multiple challenges, including geographical differences, complex construction environments, and varying technical standards. They strictly adhered to construction specifications and timelines to advance equipment installation and commissioning, while also providing professional operation training and technical guidance to the client, ensuring the production line quickly reached a stable operating state. During the trial operation, all aspects of the production line operated smoothly. Material handling efficiency, pellet forming quality, and environmental emission standards far exceeded customer expectations. Customer representatives highly praised Huaqiang Heavy Industry’s technical strength, product quality, and after-sales service: “Huaqiang Heavy Industry’s production line not only met our needs for large-scale production but also performed exceptionally well in environmental protection and energy conservation. The professional team and attentive service ensured our peace of mind throughout the process.” Zhengzhou Huaqiang Heavy Industry Technology Co., Ltd. has been deeply involved in the fertilizer equipment field for many years, specializing in a series of equipment including ground-mounted compost turners, trough compost turners, crushers, dryers, coolers, screening machines, and packaging machines. They can customize organic fertilizer production lines ranging from 10,000 to 500,000 tons. Their products cover all parts of China and are exported to many countries and regions, providing high-quality organic waste harmless treatment solutions for organic and inorganic bio-fertilizer plants and wastewater treatment plants worldwide. The successful delivery of this Australian disc pelletizing production line project is another important milestone in the company’s overseas market expansion, further consolidating its brand influence in the international fertilizer equipment market.

Adhering to the corporate tenet of “market-oriented, innovation-driven development, quality-based survival, and customer trust gained through comprehensive after-sales service,” Huaqiang Heavy Industry will continue to increase R&D investment, optimize product performance and process solutions, and enhance its customized service capabilities. In the future, the company will continue to actively expand into overseas markets, creating greater value for global customers with more advanced technology, more reliable products, and more professional services, allowing “Made in China” to win more applause and recognition on the international stage.

A Complete System from Raw Material to Finished Product

This successful Australian project highlights Huaqiang Heavy Industry’s ability to deliver a complete organic fertilizer production line. The supplied organic fertilizer disc granulation production line is a key module that transforms raw organic matter into uniform, market-ready fertilizer granules.

However, this granulation line is just one stage in a holistic manufacturing system. It is designed to process high-quality compost produced through a controlled organic fertilizer fermentation process. This upstream fermentation typically relies on efficient fermentation composting turning technology to produce stable, mature organic matter. For clients whose raw materials require a different physical form, Huaqiang can also integrate a flat die pelleting machine into the production flow. Together, these technologies—from turning and fermentation to organic fertilizer production granulation—form a seamless, end-to-end solution for converting organic waste into valuable fertilizer.

By mastering and integrating each critical stage, Huaqiang Heavy Industry provides clients with a scalable and efficient pathway to participate in the growing global organic fertilizer market.

We warmly welcome people from all walks of life to visit, guide, and discuss business with us, and work together to create a new blueprint for green agricultural development!

Core Advantages and Application Benefits of the Double Screws Compost Turning Machine

In the current rapid development of the organic fertilizer production industry, the Double Screws Compost Turning Machine, with its outstanding performance advantages, is gradually becoming the preferred equipment for medium and large-scale organic fertilizer production enterprises. Compared with traditional fermentation equipment, it demonstrates significant advantages in fermentation efficiency, applicability, and ease of operation, bringing multiple application benefits to enterprises and promoting the improvement of quality and efficiency in organic fertilizer production.

One of the core advantages of the Double Screws Compost Turning Machine is its superior turning effect and higher fermentation efficiency. Its double-screw synergistic working structure lifts the material from the bottom and evenly turns it to both sides, resulting in a large turning depth and wide range, allowing the material to fully contact with air and effectively improving the material’s permeability. This advantage allows microorganisms to obtain sufficient oxygen, accelerating their growth and metabolism, thereby shortening the fermentation cycle. Data shows that after using this equipment, the fermentation cycle can be controlled within 12-25 days, which is more than 30% shorter than traditional equipment. Meanwhile, thorough turning ensures more uniform fermentation, preventing localized overheating or insufficient fermentation, and significantly improving the quality of organic fertilizer.

Wide applicability is another major advantage. The double screws compost turning machine is highly adaptable to various organic materials, including livestock manure, crop straw, industrial organic waste (such as distiller’s grains and medicinal residues), edible mushroom residue, and municipal kitchen waste, achieving efficient fermentation. The equipment can adapt to the fermentation needs of different materials by adjusting the helical shaft spacing and rotation speed. For example, for industrial organic waste with high moisture content, continuous turning effectively reduces moisture content and promotes the growth of beneficial microorganisms; for crop straw with high fiber content, the helical blades tear and mix it, evenly blending it with other materials and accelerating straw degradation and maturation. This wide applicability allows companies to flexibly handle various organic wastes, improving resource utilization.

From an application benefit perspective, firstly, it significantly reduces production costs for enterprises. The equipment boasts a high degree of automation, with precise control over operations such as turning and moving via an electronic control system, reducing manual labor. Simultaneously, its variable frequency drive (VFD) power system adjusts the rotation speed according to material characteristics, resulting in higher energy efficiency and lower energy costs. Secondly, it achieves the harmless treatment and resource utilization of organic waste, reducing environmental pollution. During fermentation, high temperatures kill pathogens, insect eggs, and weed seeds in the material, eliminating odors and transforming previously polluting organic waste into high-quality organic fertilizer, aligning with the concept of green development. Finally, the equipment offers high stability and safety. Its frame is welded from high-strength steel, possessing sufficient strength and rigidity to withstand various loads during operation. The electronic control system is equipped with real-time monitoring sensors; in case of abnormal parameters, it automatically alarms and shuts down, ensuring operational safety and extending equipment lifespan.

In summary, the double screws compost turning machine, with its core advantages such as good turning effect, wide applicability, convenient operation, energy saving and environmental protection, brings multiple benefits to organic fertilizer production enterprises, including cost reduction, efficiency improvement, quality improvement and income increase. At the same time, it promotes the development of resource utilization of organic waste and has important application value in the fields of ecological agriculture and environmental protection.

A Foundational Technology for High-Quality Organic Fertilizer

The double screws compost turning machine is a pivotal technology for modern fermentation composting technology for organic fertilizer. Its efficiency and uniformity directly elevate the quality of the primary organic fertilizer fermentation process, ensuring the production of stable, mature compost that serves as the essential raw material for all downstream processing.

This equipment represents a sophisticated form of fermentation composting turning technology, often used in a trough-type aerobic fermentation composting technology setup for controlled, high-volume production. While the self propelled compost production machine offers mobility for windrows, and specialized systems like a vermicompost compost fermentation machine serve niche markets, the double screws machine is a core workhorse. The high-quality compost it produces is the starting point for a complete value chain. This mature compost can then be processed into a uniform, marketable product using a disc granulation production line, transforming bulk organic matter into precision fertilizer granules. This seamless integration from efficient turning to final granulation is what enables scalable, commercial-grade organic fertilizer manufacturing.

Ultimately, by optimizing the critical first stage of decomposition, advanced turning machines like the double screws model are not just processing waste—they are creating the consistent, high-value feedstock required for the entire organic fertilizer industry.