型号为PH-250×400的回转式破碎机,是中南工业大学根据其已授权的变啮角回转式破碎机专利研究设计,由益阳铁路机械厂试制的一种新型高效节能破碎机,可破碎抗压强度300MPa以下的坚硬、中硬矿岩和其它物料,破碎比可达13。它和相同规格的颚式破碎机相比,生产能力提高一倍以上,能耗降低60％以 Model PH-250 × 400 rotary crusher, is the South Central University of Technology, according to its authorized variable-angle rotary crusher patent research design, trial by the Yiyang Railway Machinery Factory trial of a new energy-efficient crusher can be broken Compressive strength of 300MPa following the hard, medium hard rock and other materials, broken up to 13. Compared with the jaw crusher of the same specification, it can more than double the production capacity and reduce the energy consumption by 60%