2.Special steel, Multi phase stirring
Blades use a "The corrected logarithmic spiral curve" for multi-phase 3D stirring, with fast feed/discharge, good concrete homogeneity, minimal accumulation, and <0.5% residual. Cold-pressed from a special mold, they're made of the same wear-resistant material as the cylinder, ensuring synchronous wear and a lifespan over 150,000m³. Patent number: ZL200820069338.2