Device for transporting a plurality of parts to be treated through an apparatus for wet-chemical treatment, the device comprising: a transporter, comprising at least one runner (39a,b,40a,b) for supporting the transporter for movement along at least one track (5a,b) in a first direction (x), wherein at least part of the transporter is located next to the runners (39a,b,40a,b), seen in a second direction (y) transverse to the first direction (x), and wherein this part extends from a level below the runners (39a,b,40a,b) to a level above the runners (39a,b,40a,b) in a third direction (z) transverse to the first and second directions ( x, y); a container having an interior for accommodating the plurality of parts; and a frame, at least indirectly connecting the container to the transporter to allow the transporter to carry the container at a level below the runners (39a,b,40a,b), wherein the frame comprises a respective frame part (23a,b) at at least one of opposite axial ends of the container with respect to an axis of the container, wherein the container is liquid-pervious between the axial ends to allow liquid to flood the interior when the container is immersed in the liquid, wherein the axis of the container extends in a direction ( x) transverse to the second and third directions ( y, z), characterised by comprising a mechanism (32a,b,33a-d) for guiding movement of at least one of the frame and the container in the third direction (z) relative to the transporter, wherein the mechanism comprises at least one elongate part (32a,b) of the frame and at least one respective bearing (33a-d) for guiding movement of the elongate part of the frame through or next to the transporter. a transporter, comprising at least one runner (39a,b,40a,b) for supporting the transporter for movement along at least one track (5a,b) in a first direction (x), wherein at least part of the transporter is located next to the runners (39a,b,40a,b), seen in a second direction (y) transverse to the first direction (x), and wherein this part extends from a level below the runners (39a,b,40a,b) to a level above the runners (39a,b,40a,b) in a third direction (z) transverse to the first and second directions ( x, y); a container having an interior for accommodating the plurality of parts; and a frame, at least indirectly connecting the container to the transporter to allow the transporter to carry the container at a level below the runners (39a,b,40a,b), wherein the frame comprises a respective frame part (23a,b) at at least one of opposite axial ends of the container with respect to an axis of the container, wherein the container is liquid-pervious between the axial ends to allow liquid to flood the interior when the container is immersed in the liquid, wherein the axis of the container extends in a direction ( x) transverse to the second and third directions ( y, z), characterised by comprising a mechanism (32a,b,33a-d) for guiding movement of at least one of the frame and the container in the third direction (z) relative to the transporter, wherein the mechanism comprises at least one elongate part (32a,b) of the frame and at least one respective bearing (33a-d) for guiding movement of the elongate part of the frame through or next to the transporter.