Swashplate Variable Axial Piston Pumps .

Swashplate variable displacement axial piston pumps — HD-A4VSO, HD-A10VSO, HD-A11V(L)O series. Sizes 40–1000 ml/rev, nominal pressure 28–35 MPa, peak up to 40 MPa. Through-shaft construction supports tandem mounting of multiple pumps on one drive. Wide controller range: DR/DFR (LS), FR/FHD (power), EP/EO (proportional). Replacement for Rexroth A4VSO / A10VSO / A11VO. Used in press hydraulic power units, machining centres, test rigs, die-casting machines, and in closed-circuit HD-A4VG / HD-A4VG56 systems.