Bulk Blending BB Fertilizer Production Line Case Study: 10-15 T/H PLC-Controlled Plant in Brazil

Project Overview

This case study explains how a South American (Brazil) agricultural input distributor commissioned a modular BB (bulk blending) fertilizer production line with a rated output of 10–15 T/H to serve sugarcane, soybean and maize growers. The client previously bought finished compound fertilizer from importers, which created high logistics costs, long lead times and very little control over N-P-K ratios. After comparing several suppliers, the client chose our PLC-controlled bulk blending plant because it can mix single fertilizers (urea, DAP, MAP, MOP, ammonium sulfate and others) into tailored formulas without any chemical reaction or granulation step.

Why a Bulk Blending (BB) Line?

• Formula flexibility — nutrient concentration above 50%, with trace elements, pesticides and herbicides easily incorporated.
• Low operating cost — no drying, no granulation and no chemical reaction, saving energy and raw-material loss.
• Small footprint — a compact batching–mixing–packaging layout cuts land and civil-works investment.
• Fast market response — farmers receive blends matched to soil-test results and specific crop requirements.

Project Scope & Configuration

Production Process

1. PLC computer control system
2. Automatic proportional batching of raw materials (pit-style accumulative weighing)
3. Slope scraper / belt lifting of materials
4. BB fertilizer mixer blending into a homogeneous blend
5. Transfer to weighing-machine storage silos
6. Quantitative packaging (10–50 kg/bag)
7. Conveying and sewing
8. Finished-product palletizing and storage

Equipment Included

Technical Highlights

• Pit-style batching with accumulative weighing for fast, accurate raw-material handling.
• High-precision weighing controllers give a stable packaging tolerance of roughly ±0.5%.
• Sealed, cyclical dust-control design protects the working environment and operators.
• Modular skid layout allows capacity to be expanded later from 10–15 T/H up to 50 T/H.
• Uniform granule preservation — the blend keeps the original particle size of each material.

Results & Customer Feedback

After commissioning, the line reached a stable output of 12–14 T/H in single-shift operation and can scale with a second shift during the planting season. Blending uniformity exceeded 95%, and because the process needs no granulation or drying, the client cut energy and raw-material costs while responding to farmers' custom orders within days instead of weeks. “We now build the formula the customer asks for, the same week,” the plant manager reported. Only two operators are needed for normal running thanks to the centralized PLC cabinet.

Conclusion

This BB bulk blending project shows how a compact, PLC-controlled fertilizer blending line can help distributors replace imported finished fertilizer with local, on-demand NPK production — lowering cost, shortening lead time and unlocking flexible formulas for every crop. The same 1–50 T/H platform is easily adapted to other regions, capacities and raw materials.