The main purpose of this system is to lube this lubrication points by using minimum amount of lube without air pressure. WS-E pump can feed 12 different lubrication point of a chain. On multi line systems it is possible to feed a large number of points. The main advantage of this system is to lube each lubrication point with a small amount of lube ( 0,01 cm³ - 0,025cm³) without air pressure and lubrication interval.