Magnetic levitation device and pump unit

A magnetic levitation device for the contactless magnetic levitation of a rotor which has a disk-shaped or ring-shaped magnetically active core, the magnetic levitation device comprising:

• a stator extending in an axial direction and having a cup-shaped recess arranged at an axial end of the stator and into which the rotor is configured to be inserted, the stator having a plurality of coil cores, each coil cord of the plurality of coil cords having a connecting leg and a pole piece, the connecting leg for each of the coil cords of the plurality of coil cords extending from a first end to a second end, the first end abutting a back iron,
• for each of the coil cords of the plurality of coil cords, the pole piece having a second contact surface abutting the second end of the connecting leg, the pole piece extending from the second contact surface in a radial direction to an end face, the radial direction being perpendicular to the axial direction,
• the end faces for the pole piece for the plurality of coil cords arranged around the cup-shaped recess and a concentrated winding arranged on the connecting leg for each of the coil cords of the plurality of coil cords, for each of the coil cords of the plurality of coil cords the concentrated winding surrounding the connecting leg, and extending obliquely with respect to the axial direction, such that the second end of the connecting leg is at a smaller distance from the cup-shaped recess in the radial direction than the first end.