Zero-breakage-rate hoister

The invention discloses a zero-breakage-rate hoister which comprises a base, a first motor, a cargo limiting mechanism, a second motor and a sliding plate. Self-locking rollers are fixed to the left side and the right side of the lower end face of the base, a dustproof cover covers the outer side of a winch, a steel wire rope is wound around the winch, and the steel wire rope penetrates through a rope penetrating hole to be connected with connecting rings; and the connecting rings are fixed to the left side and the right side of the upper end face of an object placing plate, the cargo limiting mechanism is fixed to the lower end face of the object placing plate and penetrates through the object placing plate, the sliding plate is slidably connected between sliding ways, the sliding ways are fixed to the front end face of a supporting plate, a second hydraulic cylinder is fixed to the rear end face of the sliding plate, and the rear side of the second hydraulic cylinder is connected with a push plate through a