【FAQ】How can the strength, uniformity, and nutrient content of the finished granules be consistently ensured to meet standards?

Consistent product quality relies on the precise coordination of every stage in the process, rather than on any single piece of equipment. We guarantee final quality through a "three-level control" system: Upstream control of mixing uniformity: We utilize horizontal fertilizer mixers and specialized BB (bulk blend) fertilizer mixers, integrated with high-precision dynamic metering systems, to ensure the mixing ratio error for organic/inorganic raw materials and trace elements remains below 1%. For NPK production, we employ a specially designed twin-screw mixing process to extend mixing time and eliminate material segregation. Dynamic adjustment during granulation: Our rotary drum granulators and disc granulators are equipped with variable-frequency drives (VFDs), allowing for real-time adjustments to rotation speed and inclination angles to accommodate fluctuations in raw material moisture and viscosity. For extrusion granulation, we utilize hydraulic pressure stabilization technology in our roller press granulators to maintain constant extrusion pressure, keeping granule strength fluctuations within a ±5% range. Intelligent closed-loop screening and material recycling: The fertilizer screening machine employs a multi-layer vibrating screen to automatically separate oversized and undersized granules; these are then conveyed back to the granulator via a return belt, creating a closed-loop cycle.