As a professional fertilizer machinery manufacturer, we supply turnkey Ammonium Sulfate Double Roller Extrusion Granulation Plants to meet the growing global demand for converting industrial by-product powders into premium granular fertilizers. Utilizing advanced dry compaction technology, this specialized compound fertilizer line transforms caprolactam grade ammonium sulfate and crystal powder compaction materials into high-density, uniform granules without adding water or binders.

Equipped with a heavy-duty, anti-corrosive Ammonium sulfate granulator, this system provides an ideal solution to add product value, eliminate powder dust, and maximize factory ROI.

• Specialized Anti-Corrosive Design: Features customized high-grade anti-corrosive alloy rollers and stainless-steel contact parts to withstand the abrasive nature of sulfate chemical crystals
• Direct Crystal Powder Compaction: Engineered specifically for caprolactam grade ammonium sulfate, handling fine powder inputs with ease while delivering heavy-duty compaction performance
• No Drying Process Required: Non-drying granulation mechanism works efficiently with raw materials under 5% moisture content, saving massive amounts of coal, gas, and electricity compared to traditional steam granulation
• High One-Time Molding Rate: Double-roller extrusion mechanism ensures a granulation rate of over 90%, directly outputting high-strength finished particles in a single pass

The entire process flow of this crystal powder compaction and compound fertilizer line is scientifically laid out to guarantee continuous, automated, and trouble-free operation:

1. Smart Raw Material Batching: Automated dosing and batching system precisely weighs ammonium sulfate powder and required blending additives according to commercial formula ratios
2. Homogeneous Material Mixing: Industrial vertical or horizontal mixers blend dry raw materials uniformly to improve chemical balance and fertilizer consistency
3. Double-Roller Extrusion Granulation: Core machine forces fine powder through two counter-rotating rollers under high hydraulic pressure, instantly compacting powder into solid flakes and raw granules
4. Particle Drying (Energy-Saving Option): For formulas requiring ultra-low moisture storage, granules go through rotary dryer. Note: For specific dry granulation formulas, this step can be bypassed completely
5. High-Efficiency Particle Cooling: Hot fertilizer particles are cooled in rotary cooling machine to eliminate heat-induced caking
6. Precision Particle Classification & Screening: Heavy-duty rotary screening machine grades particles. Qualified products move forward while oversized and undersized materials are automatically returned for re-granulation
7. Finished Product Coating: Qualified fertilizer granules enter rotary coating drum where anti-caking agent or oil coating is applied to increase brightness, roundness, and shelf-life
8. Automated Weighing & Packaging: Final film-coated particles are automatically weighed, packed into 25kg or 50kg bags, and sealed for distribution or storage