A membrane filtration device, comprising - a plurality of planar membrane filter elements which are combined to form a membrane package and are disposed within the membrane package parallel to and spaced apart from one another, - a wall which encloses the membrane package on all sides, and within which o at least one inlet chamber is formed upstream from the membrane filter elements, which is connected to at least one inlet opening for feeding a fluid to be filtered, and o at least one outlet chamber is formed downstream from the membrane filter elements, which is connected to at least one outlet opening for discharging a filtered fluid portion produced by filtration, an oscillation unit which is connected to the membrane package and the wall to make them oscillate in a direction parallel to the membrane filter elements, and which is connected to a frame which surrounds the membrane package and which is connected to the wall of the membrane package by means of least one spring whose main direction of spring action extends parallel to the plane of the membrane filter, characterized by a plurality of springs, - whose direction of force application extends parallel to the plane of the membrane filter elements, in particular in that the springs extend parallel to the plane of the membrane filter elements, and - which are connected at their one end to the wall of the membrane package and at their other end to the frame, wherein the springs are subdivided into at least one first set and one second set of springs and that all the springs within each set of springs extend parallel to each other and that the direction of the springs in one set extend at an angle and preferably perpendicular to the direction of the springs of another set. - a plurality of planar membrane filter elements which are combined to form a membrane package and are disposed within the membrane package parallel to and spaced apart from one another, - a wall which encloses the membrane package on all sides, and within which o at least one inlet chamber is formed upstream from the membrane filter elements, which is connected to at least one inlet opening for feeding a fluid to be filtered, and o at least one outlet chamber is formed downstream from the membrane filter elements, which is connected to at least one outlet opening for discharging a filtered fluid portion produced by filtration, o at least one inlet chamber is formed upstream from the membrane filter elements, which is connected to at least one inlet opening for feeding a fluid to be filtered, and o at least one outlet chamber is formed downstream from the membrane filter elements, which is connected to at least one outlet opening for discharging a filtered fluid portion produced by filtration, - whose direction of force application extends parallel to the plane of the membrane filter elements, in particular in that the springs extend parallel to the plane of the membrane filter elements, and - which are connected at their one end to the wall of the membrane package and at their other end to the frame, wherein the springs are subdivided into at least one first set and one second set of springs and that all the springs within each set of springs extend parallel to each other and that the direction of the springs in one set extend at an angle and preferably perpendicular to the direction of the springs of another set.