The present invention comprises a slab carrier (A) wherein: tubular supporting bodies (12)(14) are integrally formed projecting forwards on the left and right of an upright wall body (10) securely joined to the front rising-and-falling body (4) of a large forklift truck (2); inserted in the left and right supporting bodies (12)(14) there are left and right operating mounts (16)(18) which are formed with grippers (16a)(18a) on downwardly bent front ends and which can extend and retreat forwards and backwards; positioned below the left and right tubular supporting bodies (12)(14) there are respective drive cylinders (20) which advance and retract rods (20a) connected by a link to linking parts (38) that double as stoppers on the grippers (16a)(18a) of the left and right operating mounts (16)(18); the drive cylinders (20) are protected by means of protective casings (39) functioning as stoppers; the rear edges of the drive cylinders (20) are connected by a link to the upright wall body (10); there are respective bite units (24) on the surfaces of which are formed frictional projections (25), whereby a slab (6) is clamped onto the inside surfaces of projecting parts (22) formed connected to the upright wall body (10) underneath the drive cylinders (20) and the inside surfaces of the grippers (16a)(18a) of the operating mounts (16)(18); and the upright wall body (10) is formed with an open window (26) cut away such that the driver on the large forklift truck can have a good view of the slab (6) in the clamping operating state, and hence slabs can be carried in a highly convenient and safe fashion since the invention maximises the strength for lifting very heavy slabs of several tons or tens of tons stored in the open.
