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Fertilizer Granulation Equipment

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Granulation Equipment

Fertilizer Granulation Equipment Supplier

  • Drum Granulator

    Drum Granulator

    The drum granulator (cylinder granulator) is a highly efficient powder granulation equipment available in a variety of sizes to suit different product...
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  • Pan Granulator

    Pan Granulator

    Our disc pelletizers feature disc diameters ranging from 1m to 7.5m, disc inclinations of 35-55°, rotation speeds of 1-25 r/min, and motor power rangi...
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Granulation equipment is a key component of material granulation in industrial production. It transforms dispersed raw materials into granules of a specific size and strength through physical or chemical reactions. This not only facilitates material storage, transportation, and metering, but also improves subsequent processing efficiency and product quality. It is widely used in fertilizers, metallurgy, building materials, and other fields. For example, granulating fertilizer raw materials reduces nutrient loss and improves fertilization uniformity. In mineral processing, granulation optimizes the material's smelting properties. Its core function is to precisely control the granulation process to meet the specific material form requirements of various industries, making it a crucial link between raw material processing and finished product production.

Among granulation equipment types, drum granulators and pan granulators are two common types. Drum granulators utilize an inclined, rotating drum to continuously tumble the material within the drum due to gravity and friction. Combined with a sprayed binder, the drum granulator achieves agglomeration and granulation. It is suitable for large-scale production and is particularly effective in the production of compound fertilizers, organic fertilizers, and other fertilizers. It features high throughput and high granule strength. The disc granulator rotates an inclined disc and uses the synergistic effect of centrifugal force, gravity and friction to form particles at the edge of the disc, making it easy to observe the granulation process. The particles have good sphericity and are often used in laboratory tests or small and medium-sized production. They are more common in particle preparation in the fields of ceramics, catalysts, etc.

About Us
Nantong Alisen Environmental Protection Technology Co., Ltd.
Nantong Alisen Environmental Protection Technology Co., Ltd.
Nantong Alisen Environmental Protection Technology Co., Ltd. is a China Fertilizer Granulation Equipment Supplier and Wholesale Fertilizer Granulation Equipment Company. Founded in 2007, Nantong Alisen Environmental Protection Technology Co., Ltd. is located in Qutang Town Industrial Park, Haian City, Jiangsu Province. It has two wholly-owned subsidiaries, namely Nantong Tengpeng Import and Export Co., Ltd. and Nantong Ailisen Environmental Protection Technology Co., Ltd. As a technology-oriented company focusing on fertilizer machinery and building materials machinery, we have been committed to the design and manufacturing of various types of fertilizer machinery and building materials machinery for many years. The company boasts strong design and development capabilities, with its products covering a wide range and featuring high technological content. Many of its products lead the industry both domestically and internationally. Its main products include Granulation Equipment,rotary kilns, drum granulators, dryers, coolers, coating machines, crushers, conveyors, dust collectors and other equipment, which are widely used in major chemical fertilizer manufacturers. These products are applied in complete production lines for compound fertilizers, organic fertilizers, bulk blending fertilizers (BB fertilizers), potassium sulfate, etc. With experienced technicians and mature process design concepts, the company can provide users with a full set of services, including process design for compound (mixed) fertilizer complete sets, equipment production, formula customization, equipment installation and on-site training. While supplying users with a full set of equipment, the company also provides technical upgrading and transformation services in terms of new production capacity and environmental protection for old fertilizer production enterprises. Adhering to the business philosophy of "Customer First, Quality-Oriented, Reputation as Solid as a Tripod, and Service Supreme", the company strives to meet the personalized needs of customers and provide high-quality services. It takes customer satisfaction as the criterion for measuring the enterprise, thus winning the trust and support of a large number of customers. At the same time, we warmly welcome experts and colleagues at home and abroad to visit for guidance, discuss cooperation and create a better future together.
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Granulation Equipment for Fertilizer/Powder Production line Industry knowledge

Fertilizer Granulation Equipment is used to convert powdered or semi-moist fertilizer materials into uniform, transportable, and storage-stable granules. This category includes equipment commonly applied in compound fertilizer, organic fertilizer, and BB fertilizer production lines. Fertilizer Granulation Equipment supports stable shaping, controlled particle size, and continuous processing, ensuring that the final granules meet industrial requirements for strength, density, and handling.

Nantong Alisen Environmental Protection Technology Co., Ltd., experienced in the design and manufacturing of fertilizer machinery since 2007, provides multiple granulation solutions used in complete fertilizer production lines. Equipment such as drum granulators, rotary drums, and related auxiliary systems are applied in large chemical fertilizer facilities and integrated with drying, cooling, coating, crushing, and dust collection technologies.

1. Core Functions and Performance Features

  • Granulation and densification：Transforms loose materials into mechanical or agglomerated granules.

  • Particle size control：Allows adjustment through drum speed, angle, spray volume, or mixer configuration.

  • Continuous large-scale output：Supports stable production for NPK, organic, and special fertilizers.

  • Integration capability：Works with dryers, coolers, coating machines, conveyors, and dust collectors for complete line operation.

2. Main Types of Fertilizer Granulation Equipment & Working Principles

(1) Drum Granulator (Rotary Drum Granulation)

Working principle：Uses rotating drum motion to agglomerate moist raw materials through rolling and layering. Water or steam is sprayed to promote adhesion and pellet formation.
Typical applications：Large NPK compound fertilizer production lines.
Advantages：High output capacity, stable operation.
Limitations：Granule uniformity is influenced by material moisture and drum angle.

(2) Disc Granulator (Pan Granulation)

Working principle：Raw materials are fed onto a rotating inclined disc, where particles gradually agglomerate through rolling and layering.
Applications：Organic fertilizer, small/medium compound fertilizer lines.
Advantages：Flexible particle size control.
Limitations：Lower output compared with drum granulation.

(3) Double Roller Granulator (Extrusion Granulation)

Working principle：Powdered fertilizers are compressed between rollers to form granules without heat or moisture.
Applications：Moisture-sensitive NPK, highly controlled formula fertilizers.
Advantages：Low energy consumption, no drying required.
Limitations：Suitable mainly for dry materials.

(4) Organic Fertilizer Special Granulator (Stirring Tooth or Wet Granulation)

Working principle：Uses high-speed stirring teeth to achieve granulation with fibrous or organic materials.
Applications：Composted organic fertilizer, manure-based fertilizer.
Advantages：Handles high-viscosity organic matter effectively.
Limitations：Requires pre-fermentation and moisture control.

3. Equipment Comparison Table

Equipment Type Granulation Method Suitable Materials Output Scale Moisture Requirement Key Features
Drum Granulator Rolling agglomeration NPK, chemical fertilizers Large Medium–high High capacity, continuous operation
Disc Granulator Layer rolling NPK, organic Small–medium Medium Flexible particle size control
Double Roller Granulator Mechanical extrusion Dry powders Medium Low/no moisture No-drying, low energy
Organic Fertilizer Granulator Stirring/wet granulation Organic & fibrous Medium High Suitable for organic materials

4. Maintenance & Operation Guidelines

  • Moisture control：Maintaining proper moisture levels ensures stable granulation; follow recommended ranges for each equipment type.

  • Regular drum/pan cleaning：Prevents material buildup that affects granule uniformity.

  • Roller surface inspection（for double roller granulators）：Check wear patterns to maintain consistent pellet shape.

  • Lubrication：Periodically lubricate bearings, reducers, and transmission components.

  • Alignment checks：Verify drum inclination, disc angle, and roller spacing.

  • Dust management：Use suitable dust collectors to maintain clean operation and protect downstream equipment. Nantong Alisen Environmental Protection Technology Co., Ltd. supplies dust collection solutions compatible with granulation lines.

5. Application Cases

  • Large NPK compound fertilizer lines using rotary drum granulation combined with dryers, coolers, and coating machines.

  • Organic fertilizer plants applying stirring-tooth granulators after fermentation processes.

  • BB fertilizer systems integrating granulators with material batching and conveying equipment.

  • Potassium sulfate and specialty fertilizer lines using extrusion granulation for precise formulations.

6. FAQ – Fertilizer Granulation Equipment

Q1: How to choose the appropriate granulation method?
A: Choose based on material moisture, formulation characteristics, desired capacity, and required granule strength.

Q2: What particle size range is typical?
A: Most lines produce 2–5 mm granules; adjustable depending on equipment settings.

Q3: Can different granulators be combined in one line?
A: Yes, depending on the raw material and process design. For example, extrusion granulation can be paired with coating systems or cooling units.

Q4: How does granulator capacity affect production line selection?
A: Drum granulators are suitable for large-scale production (>10 t/h), while disc granulators serve medium-scale plants.

Q5: Do granulation systems require dust collection?
A: Yes. Dust collectors help maintain environmental compliance and protect equipment. Nantong Alisen Environmental Protection Technology Co., Ltd. offers dust control devices used in fertilizer processing.

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