A stone crusher is a machine designed to handle large rock blocks, including crushing large stones into smaller stones. the stone crusher is usually used in mining, gravel aggregate fields and quarries to solve the failure to enter the opening of the crusher. the crusher is composed of four main components: hydraulic crushing hammer (for rock crushing), boom (bucket), hydraulic oil station (power source) and controller (operating system). There are two main types of gravel breakers, mobile electric hydraulic breakers and fixed electric hydraulic breakers, which are usually installed on the base or rotary frame bracket.