Particle size distribution (PSD) requirements vary significantly across different applications: lithium-ion battery anode materials typically require a D50 of 4–20 μm with a narrow distribution; coating raw materials generally demand particles below 200 mesh (~75 μm), as excessive fineness can compromise gloss; coal water slurry requires particles under 1 mm, since over-grinding may reduce combustion efficiency.

      Traditional classified mechanical mills typically produce a broad PSD with slow adjustment response. Parameters such as grinding disc speed, classifier wheel speed, feed rate, and airflow all influence the PSD, requiring lengthy validation periods after any adjustment. Additionally, batch-to-batch variations in material hardness, moisture content, and feed size often lead to particle size fluctuations. According to publicly available industry data, the actual operating D50 fluctuation range can reach ±3–5 μm, potentially increasing uncertainty during customer acceptance testing.

      Jet mills generally yield a narrower PSD than classified mechanical mills (thanks to the precision cutting of the classifier wheel), but their adjustable particle size range is limited. Energy consumption rises sharply as particle size decreases; industry data indicates that comprehensive energy consumption at D50=4 μm is approximately 2–3 times higher than at D50=10 μm. For flexible production scenarios requiring a wide particle size range (e.g., D50=4–20 μm), jet mills are relatively less cost-effective.

      The Lingzhi Rotary Tooth Ultrafine Grinder enables controllable PSD adjustment by tuning parameters such as rotational speed, screen specifications, and rotary tooth clearance. Taking petroleum coke grinding as an example, under [XX] operating conditions, testing conducted by [Internal Testing / Name of Third-Party Testing Agency] demonstrated a stable D50 of approximately 8 μm, with <4 μm ultrafine powder content below 2% and >20 μm coarse particle content below 5%, resulting in a concentrated particle size distribution. The batch-to-batch D50 fluctuation range is approximately ±1 μm, demonstrating superior stability compared to both traditional classified mechanical mills and jet mills (based on comparative test data under identical materials and operating conditions). This characteristic helps widen the process window, improve batch consistency, and better meet customer particle size acceptance requirements.