Operates via a dry process at ambient temperature, requiring zero energy for drying. The material is formed via extrusion at ambient temperature without the need for added moisture or steam heating. This eliminates the capital investment and energy consumption associated with equipment such as dryers, hot-blast stoves, and coolers required in wet processes, significantly reducing the total energy consumption per ton of product while avoiding exhaust gas treatment issues associated with hot-air drying.

Pressure is precisely controllable, ensuring consistent granule quality. The hydraulic system allows for stepless adjustment and closed-loop control of extrusion pressure; once set, the pressure is automatically maintained via an accumulator, remaining unaffected by minor fluctuations in feed rate. This feature ensures high batch-to-batch consistency in quality metrics—such as granule density, strength, and dissolution rate—thereby meeting standardized production requirements.

The system accommodates a wide range of materials and allows for flexible formula switching. By changing roller shells with different pocket shapes and adjusting hydraulic pressure, a single machine can handle various materials and product specifications, enabling rapid production transitions between compound fertilizers, organic-inorganic compound fertilizers, and chemical powders, resulting in high equipment utilization.

It offers outstanding environmental benefits with no “three wastes” (wastewater, waste gas, and solid waste) emissions. The entire process is water-free, generating no wastewater; ambient-temperature operation produces no smoke or dust, and the inclusion of a dust removal system ensures a clean workshop environment, complying with increasingly stringent environmental regulations.