There is disclosed herein a kind of source suspension concentrating cells being suitable for from cell and/or the cell harvester tools of the washing cell, which includes: shell, is used to accommodate the mechanical organ including at least one fluid pump, at least one valve And process kit, it is removably inserted in shell, the external member includes the generally flat frame of the fluid path or support with multiple sealings, fluid path is arranged in general planar and the fluid in path is made not contact the mechanical organ, wherein in fluid path at least partly include flexible pipe, the outer surface of flexible pipe can be manipulated by fluid pump or each fluid pump, to provide fluid stream in one or more in the paths, and/or manipulated by valve or each valve, with the fluid stream in one or more of constrained path. In embodiment, external member further includes fluid processing storage and filter, is suitable for separating cell with the fluid in the path. Also disclose the transfer device for the fluid processing storage that moves and weigh.