Concrete skip of cylindrical-conical-shape, straight outlet with hose coupling, welded-on approved chain or bale arm. Commands for opening and closing the discharge valves and for the external vibrator are given by means of a radio control system with a range of100 m. The opening mechanism is operated via an hydraulic cylinder, an hydraulic unit and a battery with charger. The concrete skip is built in conformance with official labour safety regulations. Safety requirements, such as automatic closing of the valve in the event of malfunctions or range violations, are met.