SYDFE1-2X/045R-PPA12N00-0000-C0X0XXX

The SYDFE1-2X/045R-PPA12N00-0000-C0X0XXX is manufactured by Bosch Rexroth within the SYD Hydraulic Control Systems series. It is intended to modulate pump output in hydraulic automation where variable displacement is required. The displacement is 45 cm³, defining the volume of fluid delivered per revolution at maximum setting. Clockwise rotation aligns the pump with drive arrangements that follow standard right-hand rotation conventions. A cylindrical shaft with a 25 mm key provides a direct mechanical interface to the prime mover and resists torsional loads during start-up. The unit uses mineral oil in the HL or HLP classes so users can select widely available fluids. A mass of 26 kg influences mounting hardware choice and permits manual handling during service. Maximum operating pressure is 280 bar, setting the upper limit for system relief valves and component sizing. There is no through-drive, so additional pumps cannot be connected in series on the same shaft and a separate drive arrangement is required when auxiliary circuits are present.

In service the shaft accepts up to 1500 N of axial force, allowing moderate belt or gear thrust without excessive bearing wear. When the pump spins at 1500 rpm with maximum displacement, flow reaches 68 l/min, giving designers a reference point for low-speed duty cycles. At nominal speed the same displacement yields 117 l/min, which supports higher demand circuits without changing hardware. Power consumption rises to 32 kW at 1500 rpm and 280 bar, a figure used to size electric motors or diesel engines for partial load operation, while full nominal speed at the same pressure requires 55 kW. Torque output climbs to 200 Nm at 280 bar, providing the mechanical moment that must be transmitted through the keyed shaft. The pump can run up to 3100 rpm when displacement is reduced, but it is limited to 2600 rpm at full displacement to protect efficiency. A minimum speed of 250 rpm defines the lowest controllable operating point before slip and pressure loss become critical.