Rigidity of a rectangular frame of the scene in the harshest environments. May even exert a strong force [Tensile strength: 60 ~ 89kgf] Specification Digging Depth 66~82ft Vertical wall Radious 26~31ft Working Radious 35~43ft Dumping Height 2~32ft Permision Vertical Angle ¡¾10 Working Pressure 3,625psi Working Pull Force 6,614~24,250lb Max Pull Force 11,023~37,479lb Weight 8,378~20,944lb Push / Pull Speed 30~15sec Clamshell Bucket 1.05~2.62yd3 Equipment Grade 20~25 Ton Grade