SPLINE SHAFT of SICOMA Mixer HIYA MECH 3 years ago SCAJ-020(E)-166 SCAJ-020(E)-164 SPLINE SHAFT AND JOINT OF SICOMA TWIN SHAFT CONCRETE MIXER Function: connecting the spindle and the gearbox transmission transitional and Protection. Applies to SDMIX and SICOMA mixer MAO, MSO series concrete mixer.