Quick answer:
The John Deere 9RX 640 tractor hydraulic pump flow is 110 GPM, and hydraulic system pressure is 2,900 psi.
Hydraulic pump flow110 GPM
Implement flow56 GPM
Total hydraulic flow55 GPM
Hydraulic pressure2,900 psi
Hydraulic system typeclosed-center
John Deere 9RX 640 Hydraulic Flow Details
| Hydraulic pump flow | 110 GPM |
|---|---|
| Implement hydraulic flow | 56 GPM |
| Total hydraulic flow | 55 GPM |
| Hydraulic system pressure | 2,900 psi |
| Hydraulic system type | closed-center |
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
Implement hydraulic flow comparison
Total hydraulic flow comparison
Hydraulic pressure comparison
John Deere 9RX 640 Extra Hydraulic Notes
| Hydraulic flow note | With about 56 GPM implement flow, the John Deere 9RX 640 sits in the very high-flow hydraulic range and is best suited to large hydraulic implements and high-demand farm equipment where SCV flow matters. |
|---|---|
| Hydraulic pressure note | The John Deere 9RX 640’s hydraulic pressure is listed at 2,900 psi, which is strong tractor hydraulic pressure; flow still decides attachment speed while pressure affects force. |
| Rear remotes / SCV note |
|
| Hydraulic system type note | System type matters on the John Deere 9RX 640: closed-center affects how hydraulic flow and pressure are delivered to valves and implements. |
Official information note
Mistakes do happen. Hydraulic flow, pump flow, implement flow, pressure, rear remote / SCV setup and fluid capacity can change by year, market, transmission, pump option, loader package and hydraulic package. Please check the operator manual and official deere.com website for official information.







