the counter-current planetary mixer is same with mixing the high sublimate concrete.it is the best choice for building blocks and prefabricated parts.jn mixer can reach 85% of the maximum mix quality after only 15 seconds of mixing ,and after further 15 seconds 95% of this figure is reached.for the short mixing time,it can finish maximum mixing cycle in an hour and can ensure the quality and performance of concrete,compared to other mixing technologies,jn can save 8% cement at the same stretch intensity.