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The production quality testing of organic fertilizer disc granulators should focus on three core dimensions: granulation performance, equipment operational stability, and finished product indicators, ensuring that the produced organic fertilizer granules meet the requirements for application and storage.

First is the granulation performance test, which is a core indicator. After 30 minutes of full-load operation, randomly select three 1kg samples of finished granules and test three key parameters:  First, the granulation rate, which must be ≥85%, calculated after removing powder and large lumps; second, the uniformity of granule size, using standard sieves, requiring that granules of the target size (usually 2-4mm) account for ≥90%, and if the size deviation is too large, the disc inclination or rotation speed needs to be adjusted; third, the granule strength, tested using a pressure testing machine, requiring a single granule compressive strength of ≥10N to prevent pulverization during storage and transportation.

Secondly, the operational stability test of the bio disk organic fertilizer machine. Under full-load conditions for 2 hours of continuous operation, observe that the main shaft speed deviation is controlled within ±1%, the bearing temperature rise does not exceed 35℃, and there are no obvious abnormal noises or jamming; check that the disc liner is wear-resistant and free of material adhesion, and that the discharge port is smooth and unobstructed; simultaneously test the equipment’s sealing performance to ensure that no dust escapes during operation, meeting environmental protection requirements.

Finally, a material adaptability review is conducted using different moisture content levels (25%-35%) of mature organic raw materials. The bio organic fertilizer equipment should be able to granulate stably, and the residual rate in the cylinder after shutdown should be ≤1.5%, avoiding the impact of fluctuations in raw material characteristics on production efficiency.