Feed chain unit for moving products forward over a conveying path on a support surface, comprising - an endless feed chain revolving in a revolving plane extending in the longitudinal direction and having catchers spaced thereon at longitudinal intervals, for moving the products forward over the conveyor line, - two support units (14a, b) arranged on both sides of the catchers with respect to the longitudinal direction, each comprising an endless, circulating support part (15a, b), in particular support belt (15a, b), which together form the support surface, - wherein the single-part or multi-part catchers are each at least partially easily detachably fastened to the feed chain so that they can be dismounted from the supply chain and mounted thereon, in particular without dismounting the support surface, - a controller for controlling the movements of at least all moving parts of the feed chain unit, wherein - the catchers protrude radially beyond the chain run, - the upper strand of the support parts (15a, b) is arranged in each case above the upper strand (2.1) of the feed chain in such a way that the catchers extend upwards through the slot between the support parts (15a, b), characterized in that - the lower strand of the support parts (15a, b) is also arranged in each case above the upper strand (2.1) of the feed chain in such a way that the catchers extend upwards through the slot between the support parts (15a, b), - both of the endless, circulating support parts (15a, b) are embodied to be adjustable in their mutual transverse spacing transversely to the circulation plane between an operating position and a cleaning position. - an endless feed chain revolving in a revolving plane extending in the longitudinal direction and having catchers spaced thereon at longitudinal intervals, for moving the products forward over the conveyor line, - two support units (14a, b) arranged on both sides of the catchers with respect to the longitudinal direction, each comprising an endless, circulating support part (15a, b), in particular support belt (15a, b), which together form the support surface, - wherein the single-part or multi-part catchers are each at least partially easily detachably fastened to the feed chain so that they can be dismounted from the supply chain and mounted thereon, in particular without dismounting the support surface, - a controller for controlling the movements of at least all moving parts of the feed chain unit, wherein - the catchers protrude radially beyond the chain run, - the upper strand of the support parts (15a, b) is arranged in each case above the upper strand (2.1) of the feed chain in such a way that the catchers extend upwards through the slot between the support parts (15a, b), characterized in that - the lower strand of the support parts (15a, b) is also arranged in each case above the upper strand (2.1) of the feed chain in such a way that the catchers extend upwards through the slot between the support parts (15a, b), - both of the endless, circulating support parts (15a, b) are embodied to be adjustable in their mutual transverse spacing transversely to the circulation plane between an operating position and a cleaning position.