Good quality ballast are clean and graded crushed stone aggregates with hard, dense, angular particle structure providing sharp corners and cubical fragments with a minimum of flat and elongated pieces . The sleepers lie on top of the ballast, most commonly used type of sleepers is reinforced concrete and is not structurally connected to the ballast, are smooth at the top, but have a very rough surface at the bottom where they come in contact with the ballast . The rough surface makes it possible for the ballast . interact together in restraining the external forces. Ballasts are broken pieces of hard rock having a range of 25mm - 60mm size, over which the railway tracks are laid.
Stone quarry use ballast crusher and ballast crushing plant to get ballast. Different type of crusher has different application. Ballast crushing and screening plant consists of jaw crusher, standard cone crusher, short head cone crusher, impact crusher, VSI crusher, mobile jaw crusher, portable cone crusher and mobile impact crusher. Besides, vibrating screen is used as sieving equipment, vibrating feeder as feeding equipment, belt conveyor as transferring equipment.
SBM is a ballast crushing machine manufacturer in China, and provide all kinds of gravel crushers and ore crushers for sale with best price, such as marble crusher, bauxite crusher, Iron ore crusher, copper crusher and ballast crushing and screening plant. We also suppy all kinds of grinding machines that are used for grinding stones or mine ore into powder. Now our crushers and grinding mills have exported to many countries, such as India, Indonesia, Philipines, Vietnam, USA, South Africa, Egypt etc. We can also design a complete crushing plant according to special requirements of customers and character of stones or ores.
Ballast crushing and screening plant is consist of jaw crusher, impact crusher, cone crusher, VSI stone crusher, vibrating screen, and belt conveyers.In order to get the eligible stones for highway and railway, quarry usually use the complete ballast crushing plant. In ballast crushing plant, stones firstly enter into Jaw crusher for primary crushing, then through belt conveyor evenly enter into impact crusher or cone crusher for fine crushing. Finally, through vsi crusher stones mainly are cubic in shape. Vibrating screen is used as screening machine to screen out the different size of ballast. The ballast that are unqualified returns to the crushing plant for crushing again.