On October 20, 2025, a client from Bolivia contacted YUSHUNXIN through our website. He planned to invest USD 350,000 to build an NPK Line di pruduzzione fertilizante with an annual output of about 300,000 tons. After calculation, the target capacity reached around 10 tons per hour. The main raw materials included urea, diammonium phosphate (DAP), and potassium chloride (KCl). After detailed communication about raw materials, capacità, and local environmental requirements, YUSHUNXIN designed a 10 T/H NPK fertilizer solution that balances stable output, product quality, and environmental compliance.
Can you provide us the 10 TPH NPK fertilizer production line at $350,000?
To meet the Bolivian client’s target of a 10 TPH NPK fertilizer granulation production line within a $350,000 budget, YUSHUNXIN designed a complete and cost-controlled solution based on urea, diammonium phosphate (DAP), chlorur di potasio (KCl), è oligoelementi.
Urea Crusher ($4,600–$5,600)
Primu, a urea crusher reduces urea and DAP granules into fine powder. After crushing, the particle size reaches ≤1 mm, with no large particles remaining. This step improves material dispersion, enhances mixing uniformity, and ensures accurate NPK ratios.
Automatic Batching System ($4,000–$5,500)
Dopu, the automatic batching scale precisely weighs urea, DAP, KCl, and micro-nutrients. It supports simultaneous batching of 3–10 raw materials, with a weighing accuracy of up to ±0.5%. In più, the raw material shortage alarm helps prevent formulation errors during continuous operation.
Double-Shaft Horizontal Mixer ($3,500–$4,500)
The double-shaft horizontal mixer blends all raw materials evenly before granulation. The mixing uniformity reaches ≥95%, with no dead zones. It handles both dry and wet powders and allows the later addition of liquid additives, such as anti-caking agents or microbial agents.
Granulatore a tamburo rotante ($30,000–$35,000)
The mixed materials then enter the SXZGZ-2028 granulatore a tamburo rotante. This machine forms strong and uniform NPK fertilizer granules for large-scale commercial production. Its granulation rate exceeds 98%, and operators can adjust particle size by changing drum speed and inclination.
Drying and Cooling Unit (about $80,000)
To improve granule strength and control moisture, we recommended a 1.2 × 2 m drying and cooling machine. This unit stabilizes fertilizer quality and supports continuous 10-ton-per-hour output.
Rotary Drum Screening Machine ($8,000–$9,000)
After drying, the SXZG-1560D rotary drum screener separates qualified granules from oversized and fine particles. Its multi-layer screen design enables simultaneous classification. Oversized granules return to the crusher, while fine powder feeds back into the granulator, forming a closed-loop system.
Double-Bucket Packaging Machine ($10,000–$12,000)
- Infine, a double-bucket packing scale and belt conveyors complete automatic weighing and packaging, preparing finished NPK fertilizer for storage and distribution.
- A 2 × 2 m buffer silo balances material flow between processes and ensures smooth, uninterrupted operation.
This 10 TPH NPK fertilizer production line fully meets the Bolivian customer’s capacity, raw material, and budget requirements while delivering stable performance and high-quality fertilizer output.
How to Achieve Colorful and High-Strength NPK Fertilizer Granules (≥12 N)?
The customer in Bolivia also required multi-color NPK fertilizer granules with a crushing strength of at least 12 N, targeting the premium fertilizer market.
Pellet rounding machine
pellet rounding machine
To meet this requirement, we recommended adding a pellet rounding machine after the drum granulation stage. This equipment reshapes irregular particles into rounder and more uniform granules, significantly improving sphericity and surface smoothness. As a result, the granules show consistent size and better visual appearance.
Drum coating machine
Drum coating machine
In più, we equipped the 300,000 TPY NPK fertilizer production line with a fertilizer coating machine. The coating system evenly applies color agents and functional additives onto the granule surface. It not only produces colorful NPK fertilizer products, but also increases granule hardness, reduces dust during handling, and improves storage and transportation performance.
After on-site testing, the finished NPK fertilizer granules achieved a crushing strength of ≥12 N, fully meeting the client’s from Bolivia quality standards.
How We Helped the Client in Bolivia Control Dust and Wastewater Emissions?
The customer from Bolivia also faced strict local regulations on dust control and wastewater discharge. To ensure full compliance, YUSHUNXIN integrated an efficient environmental protection system into the 300,000 tons/year NPK fertilizer granulation plant.
For dust management, we installed a pulse bag dust collector at key dust-generating points, such as crushing, mischjendu, and screening sections. This system captures fine fertilizer particles in real time and keeps dust concentration well below local emission limits. It also improves the workshop environment and protects workers’ health.
For wastewater control, we designed a closed-loop wastewater recycling system. All cleaning water and process wastewater flow back into a collection tank for reuse in granulation and mixing. so, this design achieves near-zero wastewater discharge and reduces fresh water consumption.
With these systems, lu 300,000 TPY NPK fertilizer plant meets environmental standards while maintaining stable, continuous production.
