Water jet cutting device (10) for flat or block-shaped, preferably pliable, body (16), in particular technical textiles or animal skins, comprising a water jet cutting device (11) for cutting the body (16) by cutting out workpieces or molds from the body, as well as a movable Support surface (12) for the body (16), wherein the movable support surface (12) in a conveying plane (E) at least partially in the effective range of the water jet cutting device (11) is movable and wherein the support surface (12) in cutting direction water passages (45) , characterized in that the support surface (12) is formed as part of a circulating conveyor belt (17), with a support bar (28, 29) for supporting the support surface (12) of the conveyor belt (17) in the region of the water jet cutting device (11) is arranged below the conveying plane (E).
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