Hagglunds Compact CA Inner Curve Hydraulic Radial Piston Motor. Range: CA50, CA70, CA100, CA140, CA210. heavy-duty application. Hagglunds Compact CA series Inner Curve Hydraulic Radial Piston Motor.standard model : CA50, CA70, CA100, CA140, CA210. Hagglunds compact CA motor was designed for one specific purpose: to power heavy-duty applications with minimum size and weight. Its light and compact ...