Flat die granulators: Why are they suitable for small and medium-sized organic fertilizer companies?

fertilizer granulator Oct 15, 2025

Small and medium-sized organic fertilizer companies are characterized by moderate production capacity, diverse raw materials, and large batch sizes. The design features of the flat die granulator perfectly meet these needs, making it a cost-effective choice for these companies.

1. Low Equipment Investment Cost

The flat die granulator has a relatively simple structure and does not require a complex transmission system. The purchase cost of a single unit is only 60%-70% of that of similar granulator equipment with similar production capacity. Furthermore, installation does not require a complex foundation, saving small and medium-sized companies from the high initial investment.

2. Flexible Raw Material Adaptability

Small and medium-sized organic fertilizer companies often purchase local raw materials, which can have large fluctuations in moisture and fiber content. The flat die granulator’s wide adaptability allows it to handle high-fiber straw materials, and the vertical compression of the rollers prevents tangling. For fermented materials with slightly higher moisture content, the flat die surface is easy to clean and prevents sticking.

3. Convenient Production Changeover

Small and medium-sized companies often produce a variety of products in small batches, requiring frequent adjustments to pellet size. It only takes 1-2 people to replace the flat die of the flat die granulator, and it can be completed within 30 minutes. In addition, the cost of flat dies with different apertures is low. The company can reserve multiple sets of flat dies and quickly switch product specifications to meet the needs of different customer orders.

How to improve the nutritional value of nitrogen, phosphorus and potassium compound fertilizer production line?

fertilizer granulator Oct 15, 2025

NPK Fertilizer is an indispensable fertilizer in modern agricultural production. It contains three elements, nitrogen (N), phosphorus (P) and potassium (K), which are key nutrients for crop growth. To improve the nutritional value of NPK Fertilizer Production Line, it is necessary to optimize the selection of raw materials, production process control and technological innovation.
 
First of all, the choice of raw materials is the basis for improving the nutritional value of fertilizers. High-quality nitrogen fertilizer such as Urea, Ammonium Sulfate, Ammonium Chloride, Phosphate fertilizers such as Ammonium Dihydrogen Phosphate, Ammonium Phosphate Dibasic, Ground Phosphate Rock, Potassium Chloride, Potassium Sulphate and so on are the key raw materials for the production of high nutritional value compound fertilizer.
 
Secondly, the control of the production process is equally important. At the NPK Fertilizer Production Line, the balance of nutrients in the fertilizer can be ensured through the precise ratio of raw materials and mixing uniformity. The use of a Horizontal Ribbon Mixer or a Double Shafts Paddles Mixer for raw material mixing increases the efficiency and uniformity of mixing, thereby increasing the nutritional value of the fertilizer.

Technological innovation is also an important means to enhance the nutritional value of fertilizers. For example, the use of advanced fertilizer Granulator series such as Rotary Drum Granulator and Flat-Die Pellet Machine can improve the shape and size of fertilizer pellets, improve the solubility of fertilizer and increase the absorption rate of crops.
 
In addition, the screening process in the fertilizer production line cannot be ignored. Using a Rotary Screening Machine to screen fertilizer particles can remove unqualified particles and ensure the uniformity and quality of the fertilizer.
 
Finally, the drying and cooling process of the fertilizer also affects its nutritional value. The use of Rotary Dryer Machine and Rotary Cooler Machine can effectively control the moisture content of fertilizer, prevent nutrient loss or caking caused by excessive moisture, and ensure the quality and nutritional value of fertilizer.
 
In summary, through careful selection of raw materials, optimization of the Production process, the use of advanced granulation and screening technology, as well as control of drying and cooling links, the nutritional value of NPK Fertilizer Production Line can be effectively improved, so as to better meet the needs of modern agricultural production.

Ring die granulators: Why can they adapt to the different needs of organic and compound fertilizers?

fertilizer granulator Oct 14, 2025

In the fertilizer industry, the physical properties of organic fertilizers (mostly made from fermented manure and straw) and compound fertilizers (mostly made from phosphate rock, potassium chloride, and urea) differ significantly. Organic fertilizers are fibrous, highly moist, and prone to sticking together, while compound fertilizers are hard, fiberless, and require high-hardness molding. Ring die granulators, through their “adjustable structure + material adaptability,” can meet the granulation needs of both fertilizer types.

For organic fertilizer granulation, ring die granulators offer two key design advantages: First, they utilize a “low compression ratio” ring die (3:1-5:1) to avoid excessive compression that damages the organic matter and bacterial inoculant activity in the raw material, while ensuring that the granules do not break apart. Second, they feature an “anti-sticking die conditioning system” that precisely controls the amount of water added and a small amount of binder (such as starch residue) to reduce material sticking to the die, thereby improving molding efficiency and discharge speed.

For compound fertilizer granulation, the ring die granulator focuses on “wear resistance and high extrusion capacity”: the ring die is made of wear-resistant alloy material, which can withstand the high-frequency friction of mineral raw materials and has a service life three times longer than that of ordinary materials; the pressure roller is hardened to enhance the extrusion force, and is equipped with a “high compression ratio ring die” (6:1-8:1) to ensure that the hardness of the compound fertilizer particles meets the standard.

How to choose the right raw materials to optimize the production effect of organic fertilizer products ?

fertilizer granulator Oct 14, 2025

Organic fertilizer is an important fertilizer source in modern agricultural production, and its production effect is directly related to soil fertility and crop yield. Selecting the right raw materials and optimizing the production process is the key to improving the quality of organic fertilizer.
 
First of all, the raw material selection of organic fertilizer should be based on the organic matter content, nutrient composition and microbial activity of the raw material. Common high-quality raw materials include animal manure, municipal sludge, domestic waste, sugar filter mud, wine lees, bean residue, straw, etc. After proper treatment and fermentation, these raw materials can be converted into nutrient-rich organic fertilizers.

In an organic Fertilizer Production Line, the Fertilizer Granulating Production Line is a key link in the formation of granular fertilizer. The granulation process not only improves the physical properties of fertilizer, but also helps to improve the application efficiency of fertilizer. For example,   Fertilizer Granules Compaction Machine and Flat-Die Pellet Machine are commonly used granulation machines, which make raw materials into particles by extrusion, and these particles have good forming effect and high strength.

In order to further improve the quality of organic fertilizer, Windrow Compost Turning Machine plays an important role in the fermentation process. This equipment improves the fermentation efficiency by turning the compost, improving the ventilation conditions and promoting the rapid decomposition of organic materials.
 
In the production of organic fertilizers, the use of fertilizer shredders (such as Cage Crusher) is also essential. The pulverizer crushes the bulk organic material into the right size to facilitate subsequent mixing and granulation processes.
 
Finally, in order to ensure the uniformity of organic fertilizers and improve production efficiency, fertilizer mixers (such as the Horizontal Ribbon Mixer) and fertilizer Screening machines (such as the Rotary Screening Machine) are also indispensable equipment on the production line. Mixers are used for uniform mixing of raw materials, while sifters are used to separate fertilizer particles of different sizes to ensure consistency and quality of the final product.
Through scientific and reasonable raw material selection and production process optimization, it can not only improve the quality of organic fertilizer, but also contribute to the sustainable development of agriculture.

Why do fertilizer crushers require special adaptations for bio-fertilizer production?

fertilizer granulator Oct 13, 2025

The core difference between bio-fertilizer production and conventional organic fertilizer and compound fertilizer production lies in the need to preserve the activity of the inoculant. Furthermore, the raw materials often consist of specialized materials such as fungus residue, traditional Chinese medicine residue, and fermented straw. This places special demands on grinding equipment: low temperature, pollution prevention, and precise particle size. Through targeted modifications, fertilizer crushers have become the ideal choice for bio-fertilizer production.

1. Low-temperature crushing preserves inoculant activity

The functional bacteria in bio-fertilizer (such as Bacillus subtilis and phosphate-solubilizing bacteria) are not tolerant to high temperatures. Excessive frictional heat (above 45℃) generated during the grinding process can inactivate the bacteria. High-quality fertilizer crushers optimize the impeller speed (to avoid excessive friction) and some are equipped with a “water-cooling jacket” to circulate cold water to remove heat from the chamber walls, maximizing inoculant activity.

2. Anti-residue design prevents cross-contamination

Bio-fertilizer production often requires switching between different inoculant formulations. If residual material from previous batches remains in the equipment, bacterial strains can mix. The fertilizer crusher‘s “fully open cleaning structure” solves this problem. The grinding chamber door can be fully opened, and the smooth, corner-free interior allows for quick cleaning without disassembling core components, reducing the risk of cross-contamination.

3. Precise Particle Size for Microbial Agent Mixing

Bio-fertilizer production requires uniform particle size (typically 1-3mm) after grinding. Uneven particle size results in incomplete mixing of the microbial agent and raw material, impacting fertilizer efficiency. The horizontal crusher can precisely control particle size deviation within ±0.5mm, providing a high-quality raw material foundation for subsequent microbial agent inoculation and mixing.

What should be noted when using organic fertilizer fermentation equipment?

fertilizer granulator Oct 13, 2025

Organic fertilizer is an indispensable part of agricultural production, and every link of its production process is crucial. The correct use of organic fertilizer fermentation equipment can not only improve the quality and efficiency of fertilizers, but also ensure the safety and environmental protection of the production process. Here are a few key points to pay attention to when using organic fertilizer fermentation equipment:
 

1. Use of Uniform Feeder: In the production process of organic fertilizer, uniform feeding is an important link to ensure the quality of fermentation. By using a uniform feeder, the material can be ensured to enter the fermentation equipment continuously and evenly, avoiding the problem of incomplete or excessive fermentation caused by uneven feeding.

2. Selection and use of fertilizer mixer: mixer plays a role in the production of organic fertilizer. Horizontal Ribbon Mixer and Double Shafts Paddles Mixer are two common types of mixers that ensure an even mix of ingredients and improve fermentation efficiency. When using, pay attention to the mixing speed and time to avoid destroying the microbial activity in organic fertilizer.

3. Application of fertilizer Screening Machine: Organic fertilizer will produce materials of different particle sizes during fermentation. The Rotary Screening Machine or Vibration Screening Machine can effectively separate the fertilizer particles that meet the standard and improve the uniformity and quality of the final product.

4. Maintenance of Organic Fertilizer Production Line: Organic Fertilizer Production Line includes multiple links, such as raw material treatment, fermentation, drying, screening and packaging. Regular maintenance and inspection of all aspects of the equipment, such as Fertilizer Granules Compaction Machine, Flat-Die Pellet Machine, Rotary Drum Granulator, etc., can ensure the continuous and stable operation of the production line. Reduce the risk of failure.

5. Operation of Compost Turning Machine: compost turning machine, such as Windrow Compost Turning Machine, is the key equipment to improve the efficiency of compost fermentation. Proper operation can ensure the air permeability and temperature control inside the compost, promote the activity of microorganisms, and accelerate the decomposition of organic matter.

6. The rational use of fertilizer crusher: In the production process of organic fertilizer, the crushing of materials is an important step to improve the fermentation efficiency. Equipment such as Cage Crusher can crush large pieces of material into a suitable size for fermentation, but the crushing size should be adjusted to avoid excessive fine materials affecting the fermentation effect.

7. Environmental control: During the use of organic fertilizer fermentation equipment, the temperature, humidity and pH value of the fermentation environment need to be strictly controlled to ensure the activity of microorganisms and fermentation efficiency. At the same time, it is also necessary to pay attention to ventilation and stacking to avoid the accumulation of harmful gases.

8. Safe operation: When operating organic fertilizer fermentation equipment, the relevant safety procedures must be followed to ensure the safety of the operator. This includes properly wearing protective equipment, following instructions in the operating manual, and conducting regular safety training.

 
Through the strict implementation of these precautions, you can ensure the efficient, safe and environmentally friendly operation of organic fertilizer fermentation equipment, so as to produce high-quality organic fertilizer to meet the needs of modern agriculture.

Key technology paths for low-energy retrofitting of NPK fertilizer production lines

fertilizer granulator Oct 11, 2025

To achieve the goal of efficient fertilizer production, low-energy retrofitting of NPK fertilizer production lines has become an industry imperative, with key improvements focused on optimizing technologies in high-energy-consuming processes.

In the raw material pretreatment stage, a waste heat recovery system is used to redirect 80-120°C exhaust gases generated during the drying process into the pulverization process, reducing energy consumption by 18%-22% and simultaneously reducing thermal emissions.

In the granulation process, a core energy consumer, traditional steam heating is gradually being replaced by electromagnetic heating, increasing heating speed by 50% and boosting thermal efficiency from 65% to over 90%. This reduces energy consumption per ton of product by approximately 80 kWh.

A closed-loop cooling system is introduced in the cooling process, increasing water reuse from 30% to 95% while minimizing the impact of circulating water on the surrounding environment.

In addition, the NPK fertilizer production line has achieved refined management and control through motor frequency conversion and an intelligent energy consumption monitoring platform. This platform monitors power changes across each device in real time, allowing for timely adjustment of operating parameters and avoiding idle energy consumption. Data shows that after systematic low-energy consumption upgrades, the NPK fertilizer production line can reduce overall energy consumption per ton of NPK fertilizer by 25%-30%, achieving both environmental and economic benefits.

How to choose the right organic fertilizer fermentation equipment?

fertilizer granulator Oct 11, 2025

The market prospect of organic fertilizer is broad, and more and more medium and large farms choose to process livestock manure into organic fertilizer for sale. The most important step in the production of organic fertilizer is the fermentation of organic raw materials. During the fermentation process, the raw materials need to be turned over so that the middle materials can be fully exposed to the air for fermentation and decomposition and water removal. Due to large-scale production, the processing capacity of organic raw materials is very large, and it is unrealistic to carry out manual flipping, which requires the use of flipping equipment. There are many types of flipping equipment on the market, and it is difficult to choose a suitable flipping equipment. This article simply describes the common tossing equipment and use scenarios on the market.
 

1.Simple Compost Turning Machine

Fermentation tanks need to be built, and with the help of mobile cars, it is possible to rotate between multiple fermentation tanks and reduce investment.
Tossing depth 0.8-1.8 meters, width 3-6 meters.
Can advance 1-2 meters per minute, the walking speed depends on the density of the material, the density is large, the walking speed is slow.
Application scenario: Daily organic raw material processing capacity of more than 20 tons, annual output of 6,000 tons of organic fertilizer. There is no need for manpower when the tilting machine is working.
 

2.Wheel Type Windrow Compost Turning Machine

 
The requirements for the workshop are higher, the wall must be strong, and the indoor operation.
Flipping span up to 33 meters wide, depth up to 1.5-3 meters, suitable for deep flipping operations.
Application scenario: Daily organic raw material processing capacity of more than 30 tons, annual output of 10,000 to 20,000 tons of organic fertilizer. The tilting machine works automatically without manpower.
 

3.Double Screws Compost Turning Machine

Compared with the wheel type throwing machine, the double wheel disk as the name suggests is 2 roulette one operation, the efficiency is very high.
The requirements for the workshop are higher, the wall must be strong, and the indoor operation.
Flipping span up to 33 meters wide, depth up to 1.5-3 meters, suitable for deep flipping operations.
Application scenario: Daily organic raw material processing capacity of more than 30 tons, annual output of 10,000 to 20,000 tons of organic fertilizer. The tilting machine works automatically without manpower.

4. Chain Compost Turning Machine

Fermentation tanks need to be built, and with the help of the mobile car, it is possible to rotate between multiple fermentation tanks.
The walking speed is fast, the flipping depth can reach 2 meters, suitable for deep slot operation.
Equipped with a shifting machine to change the slot can realize the multi-slot operation of a flipping machine, saving investment.
Since the tilting plate is inclined, after each tilting, the material as a whole will move forward. The next time you stack the material, put it directly at the back of the field.
Application scenario: Small fermentation site, deep fermentation tank, daily organic raw material processing capacity of more than 30 tons, annual output of 10,000 to 20,000 tons of organic fertilizer. The tilting machine works automatically without manpower.

5.Crawler-type Turning Machine

No need to build a trough, just pile the fertilizer into strips. The stacking spacing is 0.8-1 meters, and the stacking height is 0.6-1.8 meters, which saves investment cost and is convenient for expansion.
The dump plane has a cockpit, and workers can isolate some of the odor when operating the machine.
Application scenario: Daily organic raw material processing capacity of more than 5 tons, annual output of 3,000 tons of organic fertilizer. When the tilting machine is working, a worker is required to operate the machine.

Key points for retrofitting organic fertilizer production lines under environmental compliance requirements

fertilizer granulator Oct 10, 2025

With increasingly stringent environmental protection policies, environmental retrofitting of organic fertilizer production lines has become an industry imperative, focusing on the treatment of “three wastes” and compliance upgrades.

For waste gas treatment, organic fertilizer production lines must be equipped with sealed fermentation chambers and ammonia collection systems. Biofilter technology is used to control ammonia concentrations generated during the fermentation process to within standards. Some areas also require VOC monitoring equipment to ensure real-time upload of emission data.

For wastewater treatment, production lines must establish a recycling system to sediment and filter wash water and condensate before reusing them for raw material moisture conditioning, achieving zero wastewater discharge.

For solid waste treatment, optimized screening processes are employed to re-crush fermentation residues before mixing them back into fermentation, achieving full solid waste utilization.

Furthermore, the environmental impact assessment process imposes stricter requirements on production line site selection and capacity planning, such as requiring them to be at least 500 meters away from residential areas and designing production capacity to match the regional environmental carrying capacity. Although these transformations increase initial investment (usually the transformation cost of a single production line accounts for about 15%-20% of the total investment), the energy consumption of the organic fertilizer production line can be reduced by 12%-18% after the transformation.

Organic fertilizer production line was used to process chicken manure

fertilizer granulator Oct 10, 2025

Organic fertilizer is favored by agricultural production because of its ability to improve soil structure, increase organic matter content and enhance soil fertility. Among them, chicken manure as a high-quality organic fertilizer raw material, its processing has attracted much attention. This article will explore how to efficiently process organic manure from chicken manure through organic fertilizer production lines and ensure its quality and safety.
 

1. Raw material preparation and pretreatment

 
Chicken manure requires strict pretreatment before processing to eliminate pathogens and weed seeds in it. This usually involves composting treatment, which breaks down organic matter through the action of microorganisms while releasing heat to achieve bactericidal and deodorizing effects. The pre-treated chicken manure can enter the organic fertilizer production line for further processing.
 

2. Drying and sterilization of chicken manure

 
One of the key steps in an organic fertilizer production line is drying. By using professional drying equipment, such as Rotary Dryer Machine, the moisture content of chicken manure can be effectively reduced, its stability can be increased, and the subsequent granulation process can be facilitated. In addition, the high temperature during the drying process can further sterilize, ensuring the safe use of organic fertilizers.

3. Ingredient mix and nutrition balance

 
In the organic fertilizer production line, chicken manure is usually mixed with other auxiliary materials such as straw, shells, etc., to adjust the carbon nitrogen ratio and ensure the nutrient balance of organic fertilizer. This step is done through the Bulk Blending Fertilizer Production Line, ensuring that the final product can meet the needs of the different crops.

4. Granulation molding

 
The mixed raw materials will enter the granulator, such as the Fertilizer Granules Compaction Machine, for molding processing. This step forms the raw material into a uniform granular form that is easy to apply and store. Granulation can not only improve the appearance of organic fertilizer, but also improve its dispersion and absorption rate in the soil.

5. Screening and packaging

 
The organic fertilizer after granulation needs to be screened by Rotary Screening Machine to ensure uniform particle size and meet product quality standards. The qualified product is then packaged to become the final chicken manure organic fertilizer product.

6. Quality control

 
In the whole process of organic fertilizer production line, quality control is an indispensable link. By regularly testing the number and activity of microorganisms in organic fertilizers, the effectiveness and safety of the product can be assessed. For example, the application of bio-organic fertilizer can increase the capacity of soil microorganisms to utilize carbon sources, improve microbial nutrient conditions, maintain high microbial activity, and increase soil microbial diversity.
 
Through the above steps, the organic fertilizer production line can efficiently convert chicken manure into high-quality organic fertilizer products. This processing method not only improves the efficiency of resource utilization, but also helps to improve the quality and safety of agricultural products, and also contributes to the sustainable development of agriculture. With the advancement of technology and the growth of market demand, organic fertilizer production lines will continue to play an important role in modern agricultural production.