PUMP SERIES

Jiangsu Hongda High Pressure Oil Pump Manufacturing Co., Ltd. 25MCY14-1B

Hongda 25MCY14-1B is a fixed-displacement axial-piston oil pump with 25 mL/rev displacement and 31.5 MPa nominal pressure. The catalog lists theoretical delivery of 25 L/min at 1,000 r/min or 37.5 L/min at 1,500 r/min.

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Jiangsu Hongda High Pressure Oil Pump Manufacturing Co., Ltd. 25MCY14-1B — manufacturer product photograph
Official 25MCY pump photograph; specifications refer to the 25MCY14-1B row.

Published specifications

Manufacturer catalog data
Displacement25 mL/rev
Nominal pressure31.5 MPa
Theoretical delivery at 1,000 r/min25 L/min
Theoretical delivery at 1,500 r/min37.5 L/min
Published oil gradeN32–46 hydraulic oil
Normal oil temperature10–65°C
Return-filter guidance15–20 µm
FamilyFixed-displacement axial-piston hydraulic pumps
Pumped mediumHydraulic oil meeting the selected pump requirements
InstallationConfirm supported drive and case-drain arrangement

Product details

The rotating cylinder block uses valve-plate distribution, with hydrostatic balancing described at the slipper-to-swashplate and cylinder-block-to-valve-plate interfaces. The MCY configuration has a fixed swashplate setting; the adjustable SCY arrangement discussed elsewhere on the page is a separate variant.

Theoretical delivery follows displacement and speed and is not a guaranteed measured output at every pressure and oil temperature. Actual delivery and required drive power depend on the selected operating point and losses. Nominal pressure must be reviewed with duty cycle, circuit protection and the approved drive speed.

The published guidance specifies N32–46 hydraulic oil, normal oil temperature of 10–65°C and a 15–20 µm return filter. It also calls for a direct case-drain return to the tank. Confirm shaft loading and coupling support: a belt or gear drive should not impose unsupported external loads on the pump shaft.

SELECTION NOTES

Specify the operating duty

Provide required delivery, working and peak pressure, duty cycle, drive speed, oil grade and operating temperature. Confirm motor sizing, coupling loads, filtration and an unrestricted case-drain arrangement.

Published limits may describe different configurations within a series. Confirm that the required operating conditions are valid together.