The machine is attached to ski-slope vehicles and driven by the vehicle’s own hydraulics. The cutter reels are arranged radially and have the halfpipespecific shape. The removed snow is ejected out of the pipe by the impeller via the ejection chute. The finishers fastened to the housing smooth the surface of the snow after cutting. With the built-in measuring device, the driver can monitor the optimal angle at all times and correct it if necessary. The Pipe Monster is used for the preparation of professional half-pipes for international competitions.