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20 Ton BB Fertilizer Blending Equipment Production Line

This 20 TPH BB fertilizer production line features a ton-bag feeding station that allows forklift delivery of bulk bags directly into the feed inlet, while also accommodating conventional small-bag feeding—no pit installation required, saving space and construction costs.

The system uses a dual-layer hopper design with six bins arranged in two rows, each equipped for simultaneous loss-in-weight weighing to achieve precise, high-efficiency batching. During production, a dedicated linear rotary screener continuously removes fines to ensure high purity of the final granules.

The packaging section includes a servo-driven high-speed granule packing machine for automatic feeding and weighing; operators simply slide on bags and the machine seals them, delivering up to 10–12 bags per minute.

Ideal for bulk production of NPK compound fertilizer, BB fertilizer, and other blended granules, this integrated “feed-batch-mix-screen-pack” line dramatically boosts capacity and output.

Product name：20 tons NPK fertilizer production line
Material type：4-8 Materials, customizable
Mixed form：Horizontal Double Ribbon Mixer/Horizontal Twin Ribbon Blender
Measurement accuracy：±0.2%
Supply voltage：380V，50HZ
Working air source：0.4-0.6Mpa
Operating temperature：-25℃—40℃
Weighing speed：10-12bag/minute
Weighing range：20-50kg

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production detail

Product introduction：

Line Highlights & Advantages

Dual-Mode Bulk & Small-Bag Feeding
- Flexible Feeding: Forklift-loaded bulk bags or manual/small-bag feeding via conveyor—reduces manual labor and fatigue.
- Pit-Free Design: No ground pit required—ideal for plant retrofits or tight spaces; faster installation and commissioning.
Dual-Layer Six-Bin Batching
- 304 SS Hoppers: Corrosion-resistant, wear-proof, easy to clean; dual-row six-bin layout saves 30% floor space and handles multiple formulas.
- Loss-in-Weight Precision: Each bin has a high-precision weighing sensor (±0.2%), enabling rapid formula switching.
High-Efficiency Screening
- Linear Rotary Screener: Continuously removes fine powder and impurities; customizable screen mesh for varying granule sizes.
- Fully Enclosed & Dust-Free: Sealed design minimizes dust, meeting environmental regulations.
Servo High-Speed Packaging
- Auto Feed & Weigh: Servo control ensures accurate dosing; packing error ≤±2%.
- Multi-Channel High Speed: 10–12 bags/min (25 kg each); automatic sealing follows manual bag placement.
Smart PLC Control
- Centralized Touchscreen: Intuitive interface shows formula settings, speeds, and alarms at a glance.
- Auto Fault Alarm & Diagnostics: Real-time monitoring triggers automatic shutdown and guidance for quick troubleshooting.
Modular Design & Cost-Effective
- Quick Installation: Pre-engineered modules shorten assembly and commissioning time.
- Easy Maintenance: Wear parts centralized for fast replacement without halting the entire line.
Energy-Saving & Eco-Friendly
- Enclosed Conveying & Screening: Reduces dust emissions and improves air quality.
- Efficient Motors & Controls: Optimized servo systems cut energy use by ~15%.
Factory Direct & Full Support
- Direct Sales: No middlemen—competitive pricing.
- Technical Training & Service: On-site installation, commissioning, and operator training.
- Lifelong After-Sales: Free technical advice and spare parts supply ensure long-term stable operation

Product parameter：

capacity	20 tons/h
Packaging scope	25-50KG
Types of raw materials	3-12
Working power supply	AC 380V ±10% Or customized according to customers
Air source pressure	0.4-0.8mpa
Suitable for temperature	30℃ -- +40℃
relative humidity	85%R.H
accuracy	± 0.2%

Process flow chart

phosphate fertilizer production process

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NPK fertilizer batching system.jpg

automotic fertilizer batching.jpg

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