The 3 rollers H-3R rolling machine operate hydraulically.The simultaneously and concentricity of three forces at 120 o assure stability of the work piece during the rolling and as a consequence the maximum geometrical precision of the work piece.The elimination of the support blade consents a better finishing of the piece and execution of perticularly delicate profiles.The machine is suitable for rolling pipes,lapping work,threading with a high class precision and for mass production of scaffolding pipe jacks screw etc.