Reinforcement cover block machine description Fully automatic hydraulic cover block machine with mixer, hopper and elevator The machine brings less pollution, especially less noise. It can also save energy. No necessary pallet, the cover blocks can be stacking directly. With changing moulds, it can not only produce various kinds of spacers . Hydraulic machinery is very popular because of the enormous amount of power that can be transferred through small tubes and flexible hoses, and the wide variety of equipment that makes use of this technology.