Zhengzhou Tianci Heavy Industry Machinery Co., Ltd. is a company specializing in the R&D and manufacturing of fertilizer production equipment and providing turnkey solutions. Founded in 2000—with its predecessor factory established in 1995—the company’s production base is located in Xingyang City, Zhengzhou, Henan Province, China. With over two decades of technical expertise, we provide process design, equipment manufacturing, installation and commissioning, operator training, and after-sales support for organic fertilizer plants, compound fertilizer plants, NPK fertilizer plants, livestock and poultry farms, and agricultural waste treatment projects.

The granulator is the core equipment of a fertilizer production line, and its selection directly impacts granulation yield, particle shape, production capacity, energy consumption, and equipment investment. Depending on the raw materials, formulations, and production scale, Tianci Heavy Industry primarily offers double roller granulators, drum granulators, disc granulators, organic fertilizer granulators, flat die pelletizers, and ring die pelletizers. Below, we will introduce the features and applicable scenarios of these six types of fertilizer granulators.

I. Double Roller Granulator: Suitable for Dry Extrusion Granulation

The double roller granulator is primarily used for granulating powdered raw materials such as urea, monoammonium phosphate, diammonium phosphate, potassium chloride, potassium sulfate, ammonium sulfate, humic acid, and other compound fertilizers. The equipment uses two counter-rotating rollers to compress the material, causing the powder to form flakes under high pressure. These flakes are then crushed, sized, and screened to produce granules ranging from 2 to 10 millimeters in diameter.

This equipment employs a dry extrusion process, typically requiring no significant addition of water and eliminating the need for dryers or coolers. It features a short process flow, low energy consumption, a small footprint, and relatively low capital investment. The typical output of a single unit is approximately 1–5 t/h, and the entire double roller granulation production line can be configured to handle 1–10 t/h as needed, making it suitable for small- to medium-sized NPK compound fertilizer plants and multi-formula fertilizer processing projects.

II. Drum Granulator: Suitable for Medium- to Large-Scale Continuous Production

The drum granulator employs a wet granulation process. Material continuously tumbles within an inclined, rotating drum; through the injection of water, steam, or an appropriate amount of binder, fine powders gradually agglomerate to form granules. The equipment can process NPK compound fertilizers, organic-inorganic compound fertilizers, and certain organic fertilizer raw materials, with the finished product typically having a particle size of 2–10 mm.

Drum granulators offer advantages such as high processing capacity, strong continuity, stable operation, and high granule strength. The output of a single unit is generally 1–10 t/h; when used in large-scale NPK or compound fertilizer production lines, the total line capacity can reach 3–20 t/h. After wet granulation, it is typically necessary to configure a drum dryer, drum cooler, screen, and coating machine; this method is suitable for fertilizer enterprises with high demands for output, automation, and long-term continuous operation.

III. Disc Granulator: Visible Granulation Process, Flexible Adjustment

A disc granulator consists of an inclined granulation disc, a drive system, a scraper mechanism, and a liquid spray system. The mixed powdered material enters the disc, where it continuously rolls under the action of the disc’s rotation and centrifugal force. At the same time, an appropriate amount of water or binder is sprayed onto the material, gradually forming rounded granules.

The angle, rotational speed, feed rate, and water spray volume of the disc granulator are all adjustable. Operators can visually observe the granulation process, making it easy to control particle size. The equipment typically has a production capacity of 0.5–8 t/h, with finished granule sizes ranging from approximately 2 to 10 millimeters. It can be used for granulating organic fertilizers, compound fertilizers, NPK fertilizers, bentonite, and certain mineral powders. This equipment is particularly suitable for small- and medium-sized fertilizer plants, multi-formula production, and projects requiring flexible adjustment of granule specifications.

IV. Organic Fertilizer Granulator: Suitable for Highly Organic, Well-Composted Raw Materials

The organic fertilizer granulator, also known as the stirring tooth Granulator, is primarily used for fermented and matured organic materials such as chicken manure, cow manure, pig manure, sheep manure, fungal residue, straw, sludge, distillers’ grains, and oilseed meal. The equipment utilizes high-speed mechanical agitation and internal aerodynamic forces to continuously mix and collide the materials, thereby forming granules.

Compared to traditional disc granulators, organic fertilizer granulators are better suited for materials with high organic content, high fiber content, and a certain degree of stickiness. Typical production capacities range from 1 to 8 t/h, with finished granules generally measuring 2–8 millimeters in diameter. Under appropriate conditions regarding moisture content, particle fineness, and formulation, the granulation efficiency can exceed 90%. Depending on customer requirements for granule roundness, additional equipment such as rounding machines, dryers, screeners, and coating systems can be incorporated.

V. Flat Die Pelletizer: Suitable for Fibrous Organic Raw Materials

Flat die pelletizers use pressure rollers to force material through the apertures of a flat die, after which a cutting blade cuts the extruded strands into cylindrical pellets of a specific length. This equipment is suitable for processing well-decomposed livestock and poultry manure, straw powder, fungal residue, peat, wood chips, and other fibrous organic raw materials; it can also be used for processing certain types of biomass and feed pellets.

Flat die pelletizers feature a compact design, simple operation, and easy maintenance, with typical production rates of approximately 1–5 t/h. By replacing dies with different pore sizes, the pellet diameter and length can be adjusted. Since the pellets are produced through mechanical extrusion, they have a high density, making them easy to package, store, and transport. They are suitable for small-scale organic fertilizer plants, manure resource utilization at livestock farms, and multi-purpose pellet processing projects.

VI.Ring Die Pelletizer: Suitable for Large-Scale Extrusion Pelletizing

Ring die pelletizers utilize a ring-shaped die and press roller structure. After entering the pelletizing chamber, conditioned material is continuously extruded into the holes of the ring die by the press rollers and then cut into cylindrical pellets by a cutting blade. This equipment can process organic fertilizer, livestock and poultry manure, straw, grass meal, rice husks, wood chips, and certain feed and biomass raw materials.

Ring die pelletizers typically have an output of 1–15 t/h. They are characterized by high production capacity, continuous extrusion, high pellet density, and consistent finished product specifications, making them suitable for medium- to large-scale organic fertilizer and pellet processing projects. In actual production, the ring-die aperture, compression ratio, motor power, and conditioning equipment must be selected based on the raw material’s fiber content, moisture content, fineness, and target particle size to minimize die clogging and die wear.

VII.How to Select the Right Fertilizer Granulator

When selecting a fertilizer granulator, one should not merely compare price and output; a comprehensive analysis of raw material type, moisture content, cohesiveness, organic matter content, target granule/pellet shape, production scale, plant floor space, and energy conditions is also necessary. For low-energy-consumption dry granulation of NPK and compound fertilizer powders, a double roller granulator is recommended; drum granulators are suitable for medium- to large-scale continuous wet granulation projects; disc granulators are suitable for small- to medium-scale projects and those with multiple formulations; well-decomposed materials with high organic matter content are best suited for organic fertilizer granulators; for projects involving fibrous raw materials or cylindrical pellets, flat-die or ring-die pelletizers are recommended.

Tianci Heavy Industry has over two decades of experience in manufacturing fertilizer equipment. Based on customer needs, we can provide a complete range of equipment—including crushers, mixers, automatic batching systems, dryers, coolers, screeners, coating machines, and packaging machines—to assemble a comprehensive production line for organic fertilizer, NPK compound fertilizer, or granular fertilizer. Our equipment has been deployed in markets across Asia, Africa, the Middle East, South America, Europe, and Australia. We provide process planning, equipment selection, plant layout design, manufacturing and shipping, installation and commissioning, operator training, and spare parts support.

Please provide us with your raw material types, target output, site size, and formulation requirements, and our engineers will provide you with a free, customized fertilizer production solution.

After more than two decades of development, Tianci Heavy Industry has established a comprehensive equipment system covering processes such as fermentation, crushing, batching, mixing, granulation, drying, cooling, screening, coating, and packaging. Based on the customer’s raw material properties, product formulations, target output, site conditions, and investment budget, the company can configure projects such as organic fertilizer production lines, NPK production lines, compound fertilizer production lines, BB fertilizer production lines, powdered organic fertilizer production lines, and disc granulation production lines.

Ⅰ.Organic Fertilizer Production Line

The organic fertilizer production line primarily processes organic waste—such as chicken manure, cow manure, pig manure, sheep manure, sludge, crop straw, fungal residue, distillers’ grains, and oilseed meal—into granular organic fertilizer that is easy to store, transport, and apply mechanically.

The complete production process generally includes raw material fermentation, crushing, batching and mixing, granulation, drying, cooling, screening, and packaging. Depending on the organic matter content, fiber structure, and target particle size of the raw materials, the line can be configured with new-type organic fertilizer granulators, disc granulators, drum granulators, flat die granulators, or ring die granulators. The typical production capacity of a complete line ranges from 1 to 8 metric tons per hour, with finished granule sizes usually between 2 and 10 millimeters; under optimal operating conditions, the granulation rate can exceed 90%.

This production line is suitable for organic fertilizer processing plants, large-scale livestock farms, and agricultural waste treatment projects. It not only alleviates the problems of manure and straw stockpiling but also transforms composted raw materials into marketable organic fertilizer products.

Ⅱ.NPK Fertilizer Production Line

The NPK fertilizer production line is used to process compound fertilizers containing nutrients such as nitrogen, phosphorus, and potassium. It can utilize raw materials such as urea, ammonium sulfate, ammonium chloride, monoammonium phosphate, diammonium phosphate, potassium chloride, and potassium sulfate, and can incorporate humic acid, trace elements, and fillers according to the formulation.

Depending on production scale and product requirements, NPK production lines can employ double roller extrusion, wet drum granulation, or disc granulation processes. Among these, double roller extrusion production lines typically have a capacity of 1–10 metric tons per hour. They directly compress powdered materials into 2–10-millimeter granules using mechanical pressure. Generally, they do not require a dryer or cooler and are characterized by a short process flow, low energy consumption, and a small footprint, making them suitable for small- and medium-sized NPK fertilizer projects.

The entire line can be equipped with an automatic batching system, a urea crusher, a mixer, a twin-roll granulator, a screen, a coating machine, and an automatic packaging machine. The PLC system controls batching ratios and equipment operation, thereby improving the stability of the product’s nutrient content.

Ⅲ.Compound Fertilizer Production Line

Compound fertilizer production lines primarily employ the rotary drum wet granulation process, making them suitable for medium- to large-scale continuous fertilizer production projects. Their typical production capacity ranges from 3 to 20 metric tons per hour, with finished granule sizes generally between 2 and 10 millimeters. These lines can be used to produce NPK compound fertilizers and organic-inorganic compound fertilizers with various formulations.

During production, various powdered raw materials are automatically metered according to the formulation. After grinding and mixing, they enter the rotary drum granulator. Inside the rotating drum, the materials continuously roll and agglomerate through the injection of water, steam, or an appropriate amount of binder, forming relatively round granules. The granules then undergo drying, cooling, screening, coating, and packaging to produce compound fertilizer with uniform particle size, high strength, and ease of storage and transportation.

The drum-type compound fertilizer production line features high output and strong continuous operation capabilities, making it suitable for large-scale compound fertilizer enterprises with relatively stable product formulations and high requirements for granule appearance and large-scale production. If you are planning a small- to medium-sized production project, you may also opt for an NPK production line or a disc granulation production line.

Ⅳ.BB Fertilizer Production Line

The BB fertilizer production line, also known as a blended fertilizer production line, primarily measures, mixes, and packages different nutrient granules—such as urea, ammonium phosphate, potassium chloride, potassium sulfate, and granular compound fertilizers—according to predetermined ratios. Since the raw materials are already qualified granules, the production process typically does not require crushing, granulation, drying, or cooling.

The entire line primarily consists of raw material silos, an automatic batching system, conveying equipment, a BB fertilizer mixer, an automatic packaging machine, and a control system. Typical production capacity ranges from 5 to 30 metric tons per hour. The equipment employs a gentle mixing method that minimizes granule breakage and the segregation of materials with different particle sizes, ensuring a more consistent formulation for each bag of fertilizer.

The BB fertilizer production line features a streamlined process, a compact footprint, and low energy consumption. It allows for rapid switching between product formulations, making it suitable for regional fertilizer blending centers, agricultural supply companies, and projects requiring the production of specialized fertilizers for various crops.

Ⅴ.Powdered Organic Fertilizer Production Line

The powdered organic fertilizer production line is used to process fully decomposed livestock and poultry manure, crop straw, fungal residue, sludge, and distillers’ grains into uniform powdered organic fertilizer. The main process includes fermentation, feeding, grinding, blending, screening, and packaging; it does not require granulation, drying, or cooling equipment.

The typical production capacity of a complete line is approximately 1–10 metric tons per hour. It can be configured with a tracked compost turner, a trough-type compost turner, or a vertical fermentation tank, and is equipped with a forklift-fed hopper, a semi-wet material grinder, a horizontal mixer, a drum screen, and an automatic packaging machine.

Compared to granular organic fertilizer production lines, powdered organic fertilizer production lines require fewer pieces of equipment, involve relatively lower investment, and are easier to manage, making them suitable for livestock farms, small-scale organic fertilizer plants, and customers new to the fertilizer processing industry.

Ⅵ.Disc Granulation Production Line

The disc granulation production line can be used for the granulation of organic fertilizers, compound fertilizers, NPK fertilizers, and certain mineral powders. The core equipment is the disc granulator; within the inclined, rotating disc, the material gradually forms spherical granules under the influence of moisture, cohesive force, and rolling action.

The typical production capacity of this line ranges from 0.5 to 8 metric tons per hour, and the finished particle size can be adjusted within the range of 2 to 10 millimeters. By adjusting the disc inclination angle, rotational speed, liquid spray volume, and feed rate, the particle size and granulation quality can be controlled. This production line features intuitive operation and flexible formulation adjustments, making it suitable for small and medium-sized fertilizer plants, multi-product production, and projects requiring frequent formulation changes.

Ⅶ.Tianci Heavy Industry Complete Line Services

Tianci Heavy Industry possesses extensive experience in the R&D and manufacturing of fertilizer equipment, process design, and project implementation. Its products have been deployed in markets across Asia, Africa, the Middle East, South America, Europe, and Australia. The company not only supplies individual machines but also undertakes turnkey services, including process planning, equipment selection, plant layout, manufacturing and shipping, installation and commissioning, operator training, spare parts supply, and after-sales technical support.

Our engineers tailor designs to address the specific raw material moisture content, cohesiveness, climate, energy conditions, and environmental requirements of different countries and regions. For example, organic fertilizer granulation processes are suitable for well-decomposed materials with high organic matter content; NPK projects aiming to reduce energy consumption can adopt the twin-roll extrusion process; medium- to large-scale continuous production can utilize wet drum granulation; projects with multiple formulations and small batches may opt for disc granulation; and projects already using granular raw materials may configure a BB fertilizer production line.

Please provide us with your raw material type, target output, site size, and formulation requirements, and our engineers will provide you with a free, customized fertilizer production solution.

I. Why Are More and More Compound Fertilizer Companies Choosing DZJ Series Double Roller Granulators?

Zhengzhou Tianci Heavy Industry Machinery Co., Ltd., located in Renzhuang, Qiaolou Town, Xingyang City, Zhengzhou, Henan Province, has long specialized in the R&D, manufacturing, and export of fertilizer production equipment, providing turnkey solutions for compound fertilizer and NPK fertilizer companies worldwide. The DZJ Series Double Roller Granulators are widely used in compound fertilizer production lines, NPK production lines, potash fertilizer production lines, and urea production projects. Their key advantage lies in the ability to complete granulation without the need for steam or drying processes, significantly reducing energy consumption and equipment investment costs.

This series of equipment features a modular design, allowing for different models to be configured based on varying production capacities. It can be integrated with automatic batching systems, horizontal mixers, screeners, packaging machines, and other equipment to form a complete production line. Standard configurations include 15–22 kW motors, a production capacity of 1–5 t/h, a granulation rate of over 95%, and adjustable particle sizes ranging from 2–10 mm, capable of meeting the production needs of most small, medium, and large fertilizer plants.

II. What Is the Core Principle of Double Roller Granulation Technology?

The technical term for double roller granulation technology is “Dry Extrusion Granulation.” Simply put, it uses two counter-rotating rollers to directly compress powdered raw materials into granules under high pressure, rather than relying on moisture or steam for binding.

The entire process can be understood as die-pressing. If ordinary powder is likened to loose flour, then the double rollers act as a high-precision die that, through continuous and stable pressure, compresses the loose raw material in a single pass into granules with uniform density and high strength. The entire process requires no significant addition of water, so subsequent drying is typically unnecessary, resulting in significant savings in production energy consumption.

For the production of compound fertilizers and NPK fertilizers, this process is particularly suitable for low-temperature forming of raw materials such as ammonium chloride, potassium sulfate, diammonium phosphate, and urea. It effectively preserves the activity of the raw materials and reduces nutrient loss caused by high temperatures.

III. Does Higher Power Always Mean Better Granulation Results?

Many procurement professionals, when first encountering double roller granulators, assume that the higher the motor power, the better the equipment’s performance. In fact, this is a common misconception within the industry.

What truly determines equipment performance is not simply motor power, but rather the comprehensive interplay of roller shell material, roller machining precision, the hydraulic compensation system, feed uniformity, and the material formulation. If the rollers lack sufficient hardness, even a more powerful motor will fail to improve granule quality; instead, it may increase energy consumption and equipment wear.

Experienced engineers typically select the most suitable model for clients based on raw material formulations, target granule specifications, and production requirements, rather than blindly recommending higher-spec equipment. For most compound fertilizer projects with annual production capacities of 20,000 to 50,000 metric tons, properly matching equipment parameters is often more important than pursuing high power.

IV. Advice from a Veteran Engineer to Newcomers

Many customers focus entirely on the granulation yield while overlooking the critical indicator of roller shell service life.

In fact, for fertilizer companies engaged in long-term continuous production, the frequency of roller replacement directly impacts equipment maintenance costs and downtime. The DZJ series uses roller shells made of high-chromium wear-resistant alloy or high-manganese wear-resistant alloy steel, which can handle production tasks of approximately 1,000 metric tons or more under normal operating conditions. However, it is important to note that there is no fixed value for roller shell service life; it is influenced by factors such as raw material hardness, material corrosiveness, moisture content, and the customer’s requirements for granule appearance. If producing high-hardness formulations or requiring smoother granule edges, the rate of roller shell wear will increase accordingly.

Therefore, truly reputable equipment suppliers do not promise a fixed service life but instead recommend the most suitable roller shell materials and maintenance plans based on the customer’s actual operating conditions. This is also a key factor in evaluating the long-term operating costs of the equipment.

V. Under What Operating Conditions Is a Double Roller Granulator Not Suitable?

Although double roller granulators are suitable for the vast majority of compound fertilizers and NPK formulations, not all materials are suitable for the dry extrusion process.

When raw materials have excessively high moisture content, excessive stickiness, or high fiber content, problems such as roll sticking, material blockages, and reduced granulation efficiency are likely to occur. For example, organic fertilizer raw materials that have not been sufficiently dried, high-moisture sludge, and long-fiber agricultural waste are better suited for wet granulation or specialized organic fertilizer granulation equipment rather than double roller granulators.

Therefore, during the equipment selection phase, a thorough evaluation of the raw material formulation, moisture content, particle size, and final product requirements is more valuable than simply comparing equipment prices. This is also why an increasing number of international buyers, when constructing compound fertilizer production lines, prefer to select equipment manufacturers capable of providing complete process design and formulation recommendations, rather than simply purchasing a single granulator.

VI. NPK and Compound Fertilizer Production Line Case Studies: Data Is More Persuasive Than Marketing Claims

In the production of compound and NPK fertilizers, the granulation process directly determines product appearance, granule strength, packaging efficiency, and subsequent market competitiveness. For most fertilizer companies, stable operation is more important than instantaneous output, as any single shutdown can disrupt continuous production across the entire line.

Take a 3 t/h NPK compound fertilizer production line as an example. The raw materials primarily include urea, diammonium phosphate (DAP), potassium chloride (KCl), and small amounts of micronutrients. The customer previously used standard dry granulation equipment, which suffered from issues such as a high recirculation rate, inconsistent particle size, and rapid wear on the roller shells. After upgrading to Tianci Heavy Industry’s DZJ Series Double Roller Granulator, production data improved significantly following optimization of equipment parameters and roller matching.

A lower recirculation rate means less material in circulation, reducing the load on the mixing system and resulting in more stable operation of the entire production line. At the same time, since the dry extrusion granulation process eliminates the need for steam granulation and high-temperature drying, energy consumption is further reduced, making it particularly suitable for regions with high electricity costs or insufficient steam supply.

VII. Why Are More and More Overseas Customers Choosing Tianci Heavy Industry?

For international buyers, equipment performance is only one aspect of the purchasing decision; more importantly, suppliers must demonstrate long-term delivery capability, a quality management system, and experience in providing overseas services.

Zhengzhou Tianci Heavy Industry Machinery Co., Ltd., located in Renzhuang, Qiaolou Town, Xingyang City, Zhengzhou, Henan Province, specializes in the R&D, manufacturing, and turnkey construction of fertilizer production equipment. The company operates well-established machining workshops, welding production lines, assembly workshops, and complete machine testing processes, implementing strict quality control from raw material procurement through to equipment shipment.

Currently, the company’s products are widely used in projects such as compound fertilizer production lines, NPK fertilizer production lines, and organic fertilizer production lines, and it can provide DZJ series double-roller granulators in various specifications to meet customer needs.

In terms of quality systems, the company’s products comply with CE standards, and it has established an ISO 9001 quality management system. Additionally, the company can provide international third-party testing or certification services—such as SGS, BV (Bureau Veritas), and TÜV—based on project requirements, offering support for overseas customers’ project acceptance and import customs clearance.

Regarding after-sales service, Tianci Heavy Industry offers:

• 1. Production line process design and equipment selection
• 2. Overseas installation and commissioning guidance
• 3. Operator training
• 4. 24-hour remote technical support
• 5. Long-term spare parts supply and maintenance recommendations

For customers planning to build a complete compound fertilizer or NPK production line, this integrated service—ranging from equipment manufacturing to process support—can effectively reduce project implementation risks.

VIII. 5 Technical Parameters Recommended to Specify in the Contract When Purchasing a Double Roller Granulator

To avoid situations where the equipment fails to meet production requirements upon arrival at the plant, it is recommended that procurement managers specify the following details in the contract:

• 1. Production Capacity: The equipment’s actual production capacity (t/h), specifying the applicable raw material formulations and operating conditions—not merely the theoretical output.
• 2. Granulation Efficiency: Granulation efficiency and finished product particle size range, e.g., granulation efficiency ≥95%, finished product particle size 2–10 mm, with test conditions clearly defined.
• 3. Roller Shell Specifications: Roller shell material, hardness, and replacement method; confirm the use of high-chromium wear-resistant alloy or high-manganese wear-resistant alloy steel, and agree on the spare parts supply cycle.
• 4. Motor Parameters: Motor brand, power rating, and voltage standards; ensure compliance with local power grid requirements to avoid retrofitting later on.
• 5. After-Sales Support: Installation, commissioning, technical training, and after-sales service details, including technical support response time, warranty period, and availability of critical spare parts.

IX. Selecting Equipment Suitable for the Production Process Is More Important Than Simply Comparing Prices

For compound fertilizer and NPK fertilizer manufacturers, a high-quality double roller granulator not only affects granule quality but also impacts the operational efficiency, energy consumption, and long-term maintenance costs of the entire production line. When purchasing, comprehensively evaluate equipment parameters, manufacturing processes, the ability to provide complete line solutions, and after-sales service, rather than using purchase price as the sole criterion.

If you are planning a new Compound Fertilizer Production Line or NPK Fertilizer Production Line, the DZJ Series Double Roller Granulator offers a stable dry granulation solution and supports customization based on production capacity, formulations, and process requirements, helping enterprises achieve long-term, stable, and efficient fertilizer production.

X. Frequently Asked Questions (FAQ)

For many enterprises, livestock farms, or farming cooperatives new to the organic fertilizer industry, selecting an organic fertilizer granulator is often a daunting task. The market offers a wide variety of granulators, with prices ranging from tens of thousands to hundreds of thousands of yuan. Manufacturers all claim their equipment is superior, but after purchasing, some users find that the machines frequently clog, fail to form proper granules, or produce yields below expectations—or even cause the entire production line to malfunction. In fact, through our experience serving numerous organic fertilizer projects, we have found that over 70% of equipment issues stem not from machine quality but from mismatched equipment selection during the initial planning phase. There is no “one-size-fits-all” model for organic fertilizer granulators; there is only equipment suited to your specific raw materials and production needs. To avoid wasting money, you must comprehensively consider five key factors during the selection process: raw materials, production capacity, sales channels, budget, and equipment quality.

Step 1: Assess the Raw Materials—They Determine the Machine Type

Through years of project experience, we have found that the vast majority of failed equipment selections are related to mismatched raw materials. For example, a livestock farm client used fermented chicken manure as their primary raw material. Seeing that the double roller granulator required a lower investment, they purchased and installed it directly. As a result, the high-moisture material frequently caused the rollers to jam upon entering the equipment, requiring the machine to be shut down for cleaning several times a day, leading to extremely low production efficiency. Subsequent raw material testing revealed that the moisture content of their chicken manure was nearly 35%, making it a typical high-moisture fermented material better suited for a wet-type stirring teeth granulator. After replacing the equipment, the granule formation rate improved significantly, and production returned to normal. Different raw materials require different equipment:

1. 1. High-moisture fermented manure
   For raw materials such as chicken manure, cow manure, sheep manure, and biogas slurry with moisture contents between 28% and 40%, we recommend selecting a stirring teeth granulator. This equipment utilizes high-speed rotating paddles for forced mixing and agglomeration into granules. It has strong adaptability to wet materials and can process feedstock without prior drying, making it particularly suitable for manure resource recovery projects at livestock farms.
2. 2. Dry Powder Organic Fertilizers and Bio-fertilizers
   For pre-dried materials such as humic acid powder, bio-fertilizers, and dry powder organic fertilizers with a moisture content between 10% and 20%, a double roller granulator is more suitable. This equipment employs a dry granulation process that requires no water addition or drying, thereby reducing energy consumption while preserving microbial activity.
3. 3. Premium Organic Fertilizer Production
   If the product is primarily targeted at the high-end fruit and vegetable cultivation market, a disc granulator is an excellent choice. The granules it produces are round and smooth with excellent appearance quality, making it easier to gain market recognition and command a premium price.
4. 4. Large-Scale Continuous Production
   For organic fertilizer plants with an annual output of over 50,000 tons, a drum granulator often offers greater advantages. It features high single-unit capacity and can achieve 24-hour continuous production, making it suitable for standardized, large-scale fertilizer processing projects.

Comparison Table for the Four Major Machine Models

Step 2: Determine Equipment Specifications Based on Output

Many customers believe that larger equipment is always better, but this is a common misconception. Oversized equipment not only increases procurement costs but also drives up facility, electricity, and maintenance expenses; conversely, undersized equipment will limit production capacity growth. The correct approach is to first calculate the actual hourly production requirement. For example, given an annual output of 20,000 tons of organic fertilizer, 300 production days per year, and 10 hours of operation per day, the actual hourly production requirement is approximately 0.7 tons. Under these circumstances, selecting a small-scale granulation unit with a capacity of 1–2 tons per hour is sufficient to meet the demand, and there is no need to invest directly in a large-scale drum production line. Matching capacity appropriately not only helps control investment risks but also improves equipment utilization.

Machine Model Recommendation Table by Production Capacity Scale

Step 3: Select Granule Type Based on Sales Channels

Many people focus solely on whether granulation is possible, yet overlook the market’s requirements for granule shape. In reality, different sales channels have distinct granule requirements:

1. 1. If the product is primarily sold through supermarket chains, high-end fruit and vegetable farms, or gardening markets, standard spherical granules produced by disc granulators are more competitive and present a more aesthetically pleasing appearance after packaging.
2. 2. If the product is primarily used for field cultivation, long-distance transportation, or wholesale distribution, the granules produced by double roller granulators are harder and less prone to breaking during transport.
3. 3. For on-farm fertilizer use or local sales projects, stirring teeth granulators often offer a competitive advantage due to their lower overall cost.

Step 4: Beyond Equipment Price, Consider the Total Investment Cost

Many users focus primarily on equipment quotes when inquiring. In reality, the equipment price is only a portion of the total investment. Take the wet granulation process as an example: although standalone stirring teeth or disc granulators are less expensive, the granules they produce have a higher moisture content, typically requiring additional drying and cooling equipment. This can increase the investment for the entire production line by between 30% and 60%. In contrast, double roller granulators use a dry process that requires no drying equipment, resulting in lower long-term operating costs. Additionally, the following factors must be considered: whether the factory floor space meets installation requirements; whether the power supply is sufficient; the cost of replacing wear parts in the future; the difficulty of equipment maintenance; and the number of operators required. These hidden costs often warrant more attention than the equipment purchase price.

Step 5: Focus on Equipment Quality and Manufacturer Capabilities

Prices for similar equipment on the market vary significantly, with core differences typically lying in materials, manufacturing processes, and after-sales service. For example: high-quality agitator teeth are usually made of high-chromium wear-resistant materials, whereas ordinary carbon steel teeth may need to be replaced within a few months; high-quality double roller mills use 65Mn alloy steel roll shells, offering superior wear resistance; reputable manufacturers equip their machines with hardened-tooth gear reducers and variable-frequency speed control systems, ensuring more stable operation. Beyond the equipment itself, the manufacturer’s service capabilities are equally important. A truly experienced equipment manufacturer does more than just sell equipment; it assists customers with raw material analysis, process design, plant layout planning, installation and commissioning, as well as post-installation technical training.

Take Tianci Heavy Industry as an example. With over two decades of deep expertise in fertilizer equipment manufacturing, we have participated in hundreds of fertilizer projects, serving clients across multiple countries and regions. In actual projects, we consistently prioritize raw material analysis before designing solutions, rather than simply recommending equipment models. Only a solution that truly matches the client’s needs can help them achieve long-term, stable production.

Conclusion

Choosing an organic fertilizer granulator is not merely about selecting a machine; it is about selecting a production solution tailored to your specific development needs. Different raw materials, production capacities, and sales channels all result in completely different equipment configurations. We recommend thoroughly understanding your raw material characteristics and production goals before purchasing. If necessary, conduct trial runs with your raw materials to verify performance, and then make a decision based on technical advice from professional manufacturers. This approach not only prevents frequent retrofits and equipment idling down the line but also ensures that every investment delivers true value. For organic fertilizer producers, selecting the right equipment is just the beginning; establishing a stable, efficient, and sustainable production system is the key to long-term development.

In recent years, an increasing number of livestock farms, organic fertilizer plants, and compound fertilizer companies have begun planning fertilizer processing projects. However, when it comes to actual implementation, many clients encounter the same problem: while the equipment may look similar at first glance, they often find it “unsuitable for their needs” once production begins.

For some, raw materials have excessively high moisture content, leading to consistently poor granule formation; for others, limited space results in a disorganized production line layout; and for still others, while the equipment may be inexpensive initially, it suffers from severe wear and tear, high energy consumption, and frequent maintenance down the line. For many first-time fertilizer production line clients, the greatest challenge isn’t purchasing the equipment, but rather determining “which equipment truly suits their specific raw materials and production capacity.”
As a company with over 20 years of experience in fertilizer equipment manufacturing, Zhengzhou Tianci Heavy Industry Machinery Co., Ltd. has discovered through practical project experience that there is no “one-size-fits-all” solution for fertilizer equipment. A truly mature production line must be comprehensively designed based on factors such as raw materials, formulations, production capacity, site conditions, and climate.

For example, in organic fertilizer projects, the requirements for equipment vary significantly depending on the raw materials. High-moisture materials such as chicken manure, cow manure, and sheep manure place a greater demand on the stability of the fermentation system and turning equipment; whereas materials like sludge, microbial residue, and straw require higher standards for crushing, mixing, and subsequent granulation processes. If the initial process configuration is not properly matched, issues such as uneven fermentation, poor pellet strength, and high return rates are likely to arise later on.
Over the years, Tianci Heavy Industry has consistently adhered to the service philosophy of “understanding the raw materials first, then recommending equipment.” When clients initially consult, our technical team first thoroughly understands the raw material type, moisture content, daily output, target particle size, and site dimensions before developing a solution tailored to actual needs—rather than simply recommending a specific piece of equipment.

In the fermentation stage, turning equipment often determines the efficiency and stability of the entire organic fertilizer production process. For projects of varying scales, Tianci Heavy Industry offers a range of equipment solutions, including crawler type compost turner, chain plate type compost turner, groove type compost turner, and vertical fermentation tanks. For the continuous processing needs of large-scale livestock farms, chain plate type compost turner equipment is better suited for high-throughput operations; whereas for projects with limited space or stringent environmental requirements, vertical fermentation tanks can effectively shorten the fermentation cycle and reduce odor dispersion.

After actual use, many customers’ most immediate impression is not “how complex the equipment is,” but rather whether it operates stably and requires minimal maintenance. This is especially true for turning equipment: if the bearings, corrosion-resistant structures, or wear-resistant components are subpar, breakdowns and downtime are likely to occur before long. In manufacturing, Tianci Heavy Industry prioritizes long-term wear resistance and stability, minimizing the frequency of maintenance through optimized structural design and material processes.

In fertilizer production lines, the granulation stage is the absolute core. Different raw materials and fertilizer types require completely different granulation methods.
For example, double roller granulators are better suited for dry granulation scenarios such as compound fertilizers, organic fertilizers, and mineral powders. The equipment requires no drying, involves relatively low investment, and is suitable for some small and medium-sized projects; disc granulators, on the other hand, are more suitable for wet granulation of organic fertilizers and are frequently used in projects with high requirements for particle roundness; organic fertilizer granulators demonstrate strong adaptability to post-fermentation organic fertilizer raw materials and achieve high granulation rates, making them commonly used in organic fertilizer production lines; drum granulators, on the other hand, are suitable for high-capacity continuous production.

A common pitfall many clients have fallen into in the past is “focusing solely on equipment price without considering overall process compatibility.” In reality, even with the same type of granulator, the final granule quality can vary significantly depending on different formulations, moisture levels, and fiber content. The core value of the extensive project experience Tianci Heavy Industry has accumulated over the years lies in helping customers minimize trial-and-error costs.

Currently, Tianci Heavy Industry has obtained certifications for the Quality Management System (ISO 9001:2015), the Environmental Management System, and the Occupational Health and Safety Management System, and holds more than 20 utility model patents for equipment such as granulators, compost turners, crushers, dryers, and screeners. The company not only has dedicated R&D and production teams but also maintains installation and overseas after-sales service teams, providing clients with one-stop services ranging from solution design to equipment commissioning.

To date, our products have been sold to over 50 countries worldwide, including Africa, South America, the Middle East, and Southeast Asia, and we have successfully completed more than 500 projects. For many of these overseas clients, primary concerns extend beyond the equipment itself to include whether production can be maintained stably, ease of maintenance, and the timeliness of technical support. This is also a key reason why many clients continue to partner with us over the long term.

Today, competition in the fertilizer industry is intensifying. Equipment is no longer simply about “being able to produce”; factors such as energy consumption, stability, labor costs, and operational efficiency must also be considered. For companies planning to build new fertilizer plants or upgrade existing production lines, finding an equipment manufacturer that truly understands the process, raw materials, and on-site implementation is often more important than simply comparing prices.

Over the years, Zhengzhou Tianci Heavy Industry Machinery Co., Ltd. has remained dedicated to one goal: providing fertilizer equipment and production line solutions that are best suited for practical implementation based on customers’ actual needs. For many clients, high-quality equipment is not merely a machine; it is the cornerstone of stable production and long-term profitability.

This year marks our third consecutive appearance at CAC, following successful exhibitions in 2024 and 2025, where our professional solutions and project experience received strong recognition from global visitors.

A Comprehensive, Upgraded, and Immersive Showcase

Guided by our mission to provide reliable, complete fertilizer production solutions for global customers, we will present a more refined and diversified display at CAC 2026, including:

· Production Process Models & 3D Animation of Organic and Compound Fertilizer Lines

A clear and interactive demonstration of the entire manufacturing process—from raw material handling to final granule output.

· Two Double Roller Granulators of Different Models

Covering various capacity ranges and demonstrating our expertise in powder-to-granule extrusion technology.

· Full Series of Granulator Molds in Different Shapes and Sizes

Allowing visitors to explore mold options that fit different raw materials, formulas, and project needs.

· Small Disc Granulator & Small Rotary Dryer

Compact solutions ideal for laboratories, pilot plants, and educational purposes.

· Finished Granules Produced from Different Raw Materials

Showcasing granule shape, hardness, and surface quality across multiple formulations.

· VR Demonstration of Real Fertilizer Production Projects

An immersive full-scene experience of real customer production lines and factory layouts.

Professional Team On-Site – Providing One-Stop Technical Support

To help visitors receive accurate and efficient project guidance, six experienced sales consultants from our team will be available at the booth to support:

Project consultation
Equipment selection
Process design
Factory layout reference
Investment & cost evaluation

We warmly welcome partners from around the world to visit our booth, explore opportunities, and discuss customized fertilizer production solutions.

Booth Information: Date: March 17–19, 2026 | Booth No. 82B49 | Venue: National Exhibition and Convention Center (Shanghai)

We sincerely invite global distributors, project owners, industry professionals, and partners to visit our booth and experience our equipment, technology, and project capabilities in person.

In 2024, Tianci Heavy Industry participated in the 24th China International Agrochemical & Crop Protection Exhibition (CACE2024) in Shanghai, we successfully signed a number of orders and received positive feedback from customers, which shows that our products and services have been recognized by the market. In addition, several potential customers expressed their intention to cooperate, laying a good foundation for future business expansion.

Established in 2000, Zhengzhou Tianci Heavy Industry Machinery Co., Ltd. is a prominent manufacturer in China, specializing in the design, production, and supply of high-quality fertilizer machinery. With over 24 years of production experience and 16 years of export expertise, we have built a reputation as a leading brand in the fertilizer machinery industry. Our commitment to innovation and quality has allowed us to become a trusted partner for fertilizer producers around the world.

China International Agrochemical & Crop Protection Exhibition, referred to as CAC Agrochemical Exhibition, is hosted by the Chemical Industry Branch of China Council for the Promotion of International Trade. Since first launched in 1999, CAC has experienced over 25 years’ development, become world largest agrochemical exhibition and an UFI approved International event since 2012. Driven by the innovated dual platforms of online and offline, CAC create world exchange and cooperation platform linking upstream and downstream and connecting the whole industrial chain of planting inputs at home and abroad.

From March 17 to 19, 2025, the National Exhibition and Convention Center (Shanghai) will usher in the highly anticipated CAC exhibition. This exhibition brings together many well-known domestic and foreign companies and industry elites to jointly showcase the latest technological achievements and product innovations, demonstrating their strong R&D capabilities and excellent product quality.

The exhibition will be held in March 17-19, 2025 at the National Convention and Exhibition Center (Shanghai), our company’s booth is located in Hall 8.2, No. 49 (82B49), our company carefully prepared a lot of exhibits, not only advanced double roller press granulator machine, disc granulator machine and other granulation equipment, there are a number of automatic fertilizer production line models, as well as a variety of finished granules.

We will demonstrate the product operation process on-site, host customer Q&A sessions, and organize interactive activities, including technology sharing sessions and signing ceremonies during the exhibition.These activities provided executives and technical teams with opportunities for in-depth interaction with customers, promoting mutual understanding and trust between the two parties. In the wonderful moments of communication, not only did they demonstrate the company’s technical strength, but they also laid a solid foundation for future cooperation.

Based on last year’s experience, we have made many improvements and upgrades in this year’s exhibition, including optimizing the display effect of exhibits, enhancing service quality and innovating publicity methods, in order to better meet customer needs and enhance brand image. These efforts are aimed at further consolidating relationships with customers and promoting the company’s sustainable development.

Finally, we would like to express our heartfelt thanks to the organizers, customers and partners. It is because of your strong support and active participation that we can showcase our innovative achievements and development concepts on this platform. We sincerely welcome all customers to visit our booth (Booth No.: 82B49) to discuss cooperation and seek common development. We look forward to sharing our latest products and services with you and exploring future cooperation opportunities together. Thank you again for your trust and support, and we look forward to meeting again in the near future.

Date: November 13th – 15th, 2024 (3 days)

Add.: Saigon Exhibition & Convention Center – SECC,Vietnam

Contact us: Tel/Whatsapp/Wechat:Tel: +86 18937171932

Crop straw is also one of the important raw materials for producing organic fertilizers. Corn straw, wheat straw, rice straw and other crop straw contain abundant fiber and trace elements, which can improve soil structure, enhance soil permeability and water retention. The advantages of crop straw are its wide range of sources, low cost, and ability to improve soil structure. However, its disadvantages include low nutrient content, slow fermentation process, and the need to add an appropriate amount of animal manure or other organic waste to increase nutrient content.

Urban garbage is also one of the raw materials for making organic fertilizers. Urban waste includes household waste, kitchen waste, etc., which contains abundant organic matter and trace elements. Using urban waste to produce organic fertilizer can effectively reduce environmental pollution caused by waste and achieve resource utilization. However, urban waste may contain a large amount of non degradable substances such as plastics and metals, which require strict screening and treatment.

Mushroom residue is also one of the raw materials for making organic fertilizers. Mushroom residue is a waste generated during the cultivation process of mushrooms, which contains rich organic matter and trace elements. The advantages of mushroom residue are high nutrient content and wide applicability, but the disadvantages are high price and unstable source.

In summary, selecting the optimal combination of raw materials can produce high-quality organic fertilizers. According to the characteristics and advantages and disadvantages of different raw materials, organic fertilizers suitable for different plant needs and geographical environments can be combined. For example, in nitrogen deficient soil, animal manure with high nitrogen content can be used as the main raw material; In phosphorus deficient soil, crop straw with high phosphorus content can be used as the main raw material. At the same time, attention should also be paid to the treatment and sterilization of raw materials to ensure the safety and reliability of the produced organic fertilizer.

Zhengzhou Tianci Heavy Industry Machiney Co.,Ltd is a professional fertilizer equipment manufacturer with more than 20 years production experience and export experience. Our main product is complete fertilizer production line equipment, which include fertilizer granulator, crusher, mixer, screener, drying and cooling machine, fermentation machine, coating machine and packaging machine, etc.

Adhering to the principle of honest operation and quality first, the machine samples we placed at the exhibition have also received unanimous praise from many overseas friends. If you have raw materials and plan to produce fertilizers, you can choose Tianci Heavy Industry, and we will do our best.

The more widely known name for the brown coal pelletizer is the ball press machine, mainly used in the production of low and medium nutrient compound fertilizers, as well as the granulation of organic, inorganic compound fertilizers, and elemental fertilizers.

Brown coal pelletizing is one application of the high-pressure double-roll granulation process. It involves compressing brown coal powder through the action of twin rollers, molding the powdered brown coal into spherical, cubic, or other granular forms. After molding, the qualified particles go through screening before entering the next stage of the process.

The brown coal pelletizer, as the main unit in the granulation production line, is divided into seven main stages:

1. 1.Raw Material Preparation: Initially, brown coal needs to be crushed and finely ground for subsequent processing.
2. 2.Binder Addition: A suitable amount of binder is added to the fine brown coal particles to bind them together and form granules.
3. 3.Mixing: The brown coal particles with added binder are mixed thoroughly to ensure proper binding.
4. 4.Pelletizing Machine: The mixed brown coal particles are fed into the pelletizing machine, where mechanical force is applied to shape them into granules.
5. 5.Drying: The formed granules undergo drying to remove excess moisture.
6. 6.Screening: The dried granules are screened to separate any non-conforming particles, ensuring product quality.
7. 7.Packaging: Qualified granules are packaged for sale or storage.

The entire brown coal pelletizing production line boasts high automation, elevated production efficiency, and the ability to effectively process brown coal into granules, thereby enhancing its added value and market competitiveness. Moreover, the production line employs advanced processes and equipment to guarantee product quality and production safety.

Accompanied by us, Russian customers visited the company’s factory, office space, and exhibition hall, and highly praised the company’s scale, strength, and products. Then, under the guidance of technical personnel, the customer carried out a detailed inspection and test on the Manure production line equipment they ordered, and expressed satisfaction with the quality and performance of the equipment. The customer also had in-depth exchanges with us, discussed the production technology, formula, market and other aspects of organic fertilizer, and expressed the hope to establish a long-term and stable cooperative relationship with Tianci Heavy Industry.

Tianci Heavy Industry is a professional fertilizer equipment manufacturer that integrates design, research and development, production, sales, guidance, installation, training, and after-sales service. The company has a professional technical team consisting of over 400 employees, over 20 senior engineers, over 70 professional technical personnel, as well as a well-trained team of riveters and welders and a professional after-sales service team. The company’s main products include organic fertilizer production line, compound fertilizer production line, bulk blending fertilizer production line and other fertilizer equipment. If you have any question about fertilizer production, please feel free to share your questions with us.