Granulation Support Equipment

OFEC provides a full range of support equipment covering the entire organic fertilizer production process, including batching systems, crushers, mixers, conveying systems, rotary dryers, rotary coolers, screening equipment, coating machines, and packaging machines. Together with the core granulation equipment, they form a complete equipment ecosystem – helping customers achieve efficient, stable, and sustainable production operations.

In organic fertilizer production, granulation is the core process, but what truly determines the efficiency, product quality, and operational stability of the entire production line is the series of support equipment that surrounds the granulator. From precise raw material batching and crushing, to drying, cooling, screening, and finally coating and packaging – every single step has a direct impact on the quality of the final product and the overall profitability of the plant.

Why Support Equipment Matters

1. Ensures Granulation Performance
The granulation rate and pellet quality of the granulator depend heavily on the particle size, moisture content, and mixing uniformity of the incoming materials. Proper crushing, batching, and mixing are prerequisites for successful granulation.

2. Guarantees Final Product Quality
Downstream processes such as drying, cooling, screening, and coating directly affect pellet strength, appearance, storage stability, and ultimately, market acceptance.

3. Enhances Overall Line Efficiency
A well-designed conveying system and seamless integration between equipment determine whether the production line can run continuously and stably – preventing costly downtime caused by material shortages or blockages.

4. Reduces Long-term Operating Costs
Energy-efficient dryers, high-efficiency dust collectors, and other environmental protection equipment can significantly reduce energy consumption and emissions, lowering long-term operating costs while meeting increasingly strict environmental regulations.

5. Enables Full Automation
Through centralized control and interlocking, the complete set of support equipment enables fully automated production from raw materials to finished products – reducing manual intervention and improving production consistency.

Support Equipment Overview

Equipment

Primary Function

Position in the Production Line

Key Role

Batching System

Automatic batching and feeding

Front end of the line

Precisely proportions multiple raw materials according to formulation, ensuring nutrient consistency

Crusher

Material size reduction

After batching, before mixing

Reduces large lumps to optimal particle size, improving mixing uniformity and granulation rate

Mixer

Blending and homogenizing

After crushing, before granulation

Uniformly blends all materials and additives – directly affects granulation quality

Conveying Equipment

Material transfer

Between all equipment units

Connects every process stage, ensuring continuous material flow

Rotary Dryer

Pellet drying

After granulation, before cooling

Reduces pellet moisture content to safe storage level (≤15%)

Rotary Cooler

Pellet cooling

After drying, before screening

Lowers pellet temperature, prevents moisture regain and caking

Screening Equipment

Pellet grading

After cooling, before coating/packaging

Separates finished product from returns – ensures uniform specification

Coating Machine

Surface treatment

After screening, before packaging

Applies anti-caking agents or functional coatings – adds product value

Packaging Machine

Automatic weighing and bagging

End of the line

Precise weighing and bagging – ensures product presentation and logistics efficiency

Batching System

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The OFEC Automatic Batching System is the precision feeding equipment at the very front of the production line. It continuously and accurately batches 2–8 types of organic materials, conditioners, and additives according to the formulation ratio.
Key Features:
● Supports 2–8 material types with accuracy better than ±1%
● Dynamic continuous weighing with real-time automatic feed rate adjustment
● Quick and convenient formulation changes
● Suitable for both pure organic fertilizer and organic-inorganic compound fertilizer production

Crusher

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The OFEC Chain Crusher is the size-reduction equipment in organic fertilizer production lines. It crushes fermented organic materials and oversized return particles down to the optimal size for granulation.
Key Features:
● Available in vertical and horizontal models to suit different space and material requirements
● Horizontal dual-rotor design resists clogging when processing high-moisture materials
● Output particle size ≤5mm – uniform and controllable
● Interchangeable chains and blades to adapt to different material characteristics

Mixer

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The OFEC Mixer is the blending equipment in organic fertilizer production lines. It uniformly mixes crushed organic materials, conditioners, and micronutrients according to formulation – providing homogeneous feedstock for granulation.
Key Features:
● Twin-shaft mixer: continuous large-scale production with high mixing uniformity
● Disc mixer: intermittent small-batch production with easy cleaning and quick changeover
● Tight sealing with no dust leakage
● Wear-resistant, non-stick blades with long service life

Conveying Equipment

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OFEC Conveying Equipment connects all stages of the production line, ensuring smooth and reliable material flow throughout the entire process.
Key Features:
● Belt conveyor: horizontal or inclined conveying with flexible distance adjustment
● Bucket elevator: vertical lifting – space-saving design
● Screw conveyor: enclosed conveying – ideal for powdery and granular materials
● Simple structure, easy operation, low energy consumption

Rotary Dryer

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The OFEC Rotary Dryer is the core drying equipment in organic fertilizer production lines. It reduces the moisture content of granulated pellets to a safe storage level (≤15%), while the tumbling action also rounds and polishes the pellets.
Key Features:
● Drum diameter: 0.8–4.6 meters, capacity: 1–200 TPH
● Customizable lifting flights for optimal thermal efficiency
● Flexible fuel options: oil, natural gas, coal, or biomass
● Can be integrated with dust collection systems to meet emission standards

Rotary Cooler

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The OFEC Rotary Cooler is the key cooling equipment in organic fertilizer production lines. It rapidly cools hot pellets after drying to a temperature suitable for packaging – preventing moisture regain and caking.
Key Features:
● Counter-current air cooling design for high cooling efficiency
● Effectively prevents caking and enhances pellet strength
● Stable discharge temperature creates optimal conditions for subsequent screening and packaging

Screening Equipment

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The OFEC Rotary Drum Screener is the grading equipment in organic fertilizer production lines. It separates cooled pellets into finished product, fines (returns), and oversize (to be crushed and returned) – ensuring uniform product specifications.
Key Features:
● Screen drum diameter: 0.8–2.5 meters, capacity: 1–30 TPH
● Equipped with cleaning brush device to prevent screen clogging
● Customizable screen openings for precise grading
● Smooth operation with low failure rate

Coating Machine

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The OFEC Coating Machine is the value-adding equipment in organic fertilizer production lines. It applies liquid or powder coating agents onto pellet surfaces after cooling and screening – achieving anti-caking, slow-release, or color-enhancement functions.
Key Features:
● Dual-use for liquid and powder coatings with dedicated application systems
● Strip lifting flights ensure thorough tumbling for uniform coating coverage
● Adjustable coating agent dosage to suit different requirements
● Enhances product added value and market competitiveness

Packaging Machine

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The OFEC Packaging Machine is the terminal equipment in organic fertilizer production lines. It automatically weighs and bags finished pellets according to set weights.
Key Features:
● Supports multiple packaging formats: ton bags, open-mouth bags, valve bags
● Single-scale or double-scale options with accuracy better than ±0.2%
● Can be integrated with automatic palletizing systems to reduce labor
● Seamless integration with line control systems

The Value of Complete Line Integration

OFEC does not simply supply individual machines. Based on a deep understanding of organic fertilizer production processes, we systematically integrate each piece of support equipment with the core granulator to form a cohesive, optimized production line.

Line Interlocking Control

All equipment is interlocked through a PLC control system – enabling one-touch start/stop and automatic fault alerts

Optimized Layout Design

Through 3D modeling, we optimize equipment layout to maximize plant space efficiency and improve material flow

One-Stop Turnkey Service

From design and manufacturing to installation, commissioning, and training – OFEC handles everything

Unified After-Sales Support

Whole-line equipment is covered under a single after-sales service – eliminating the hassle of coordinating multiple suppliers

For a complete line solution tailored to your specific raw materials and capacity requirements, please contact the OFEC technical team.

Resources

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