Stinger is used to limit pipeline bending radius to prevent pipeline from overloading and breakage. It consists of lifting winch, stinger structure, roller system, inner and outer nested connecting rod, measurement and monitoring system etc. Inner and outer nested connecting rod is mounted between two sections of stinger to achieve step-by-step adjustment of stinger curvature.

        Main technical specifications：

        Pipe diameter：4～60 in

        Maximum vertical load：1000 kN

        Maximum lateral load：300 kN

        Vertical load sensor：2×600 kN

        Horizontal load sensor：2×200 kN

        Angle sensor：0～90°

        Water depth sensor：100 m

        Tension sensor：30 000 kN