Pin rod mill is suitable for grinding solid-liquid suspension materials with high viscosity. 1. High efficiency and operability; 2. Applicable viscosity: below 20000cps; 3. Mass production of solid-liquid suspension materials; 4.  Double mechanical seal with cooling, good sealing, no leakage; 5. The chamber and pins are made of high wear-resistant alloy steel, no rust; 6. No discoloration and pollution of grinding materials; 7. The shell, end face and main shaft are cooled, the cooling effect is good, and the material temperature can be controlled within 45 ℃ (with 10 ℃ chilled water); 8. Separation screen: it is made of special high wear-resistant material, and the screen gap can be adjusted according to different sizes of grinding beads; And there is a protection device to prevent beads from sticking; 9. Grinding medium: 0.3-3mm, zirconia beads, good wear resistance; 10. Working efficiency: fineness less than 5um (grinding twice); 11. CE and ISO 9001:2000 certification;