803077467 XCMG GR2605 motor grader gear pump

803077467 XCMG GR2605 motor grader gear pump

Part Number: 803077467
Compatible Model: XCMG GR2605 Grader
Product Positioning customized: A power output core for the hydraulic system of the GR2605 grader, converting engine mechanical energy into hydraulic energy to provide high-pressure hydraulic oil for steering, working devices, and other circuits.

Key Technical Parameters

1. Pressure and Flow Performance
Rated Working Pressure: 25MPa
Maximum working pressure: 31.5MPa
Rated Flow Rate: 63L/min (at 1500r/min)
Volume Efficiency: ≥95% (under rated operating conditions)
Operating Speed ​​Range: 600r/min~2500r/min

2. Structure and Dimensions
Structure Type: High-pressure external gear pump (single pump design)
Gear Parameters: Module 4mm, Number of Teeth 14, Tooth Width 28mm
Installation Method: Flange mounting, compatible with original engine power take-off interface
Inlet/Outlet Diameter: Suction port G1 1/2″, Outlet port G1 1/4″
Drive Method: Splined shaft drive (spline specifications according to original factory standards)

3. Material and Weather Resistance
Pump Body Material: High-strength cast iron HT250 (quenched), tensile strength ≥250MPa
Gear material: High-quality alloy structural steel 20CrMnTi (carburized and quenched), hardness HRC58-62
Bearing type: High-pressure needle roller bearing, rated dynamic load ≥80kN
Seals: Imported fluororubber (FKM) sealing components, suitable for working environments from -40℃ to 120℃
Contamination resistance rating: ISO 18/15 (suitable for the cleanliness requirements of hydraulic oil in engineering machinery)

Core functions and applications scenarios

1. Main Functions
* **Power Output:** Converts engine power into hydraulic energy, providing high-pressure hydraulic oil to the steering system, working devices (shovel, ripper, etc.).
* **Stable Oil Supply:** External meshing gear structure design ensures stable flow rate at different speeds with no significant pressure fluctuations.
* **Overload Protection:** Integrated relief valve prevents system overpressure from damaging the pump body and pipelines.
* **Self-priming Capability:** Possess excellent self-priming performance, with a suction vacuum degree ≤0.08MPa, ensuring normal operation under low oil level conditions.

2. Suitable Working Conditions

* **Heavy-duty operations such as highway construction, mine stripping, and airport runway construction.**
* **Power output scenarios requiring high-frequency start-stop and long-term continuous operation.**
* **Harsh working environments with high dust, mud and water erosion, and alternating high and low temperatures.**

Product Advantages

* **Original Factory Compatibility:** Fully matches the power requirements and installation interface of the GR2605 hydraulic system, requiring no modification for direct installation.
* **Powerful Performance:** 31.5MPa maximum working pressure + 63L/min rated flow rate, meeting the power output requirements of heavy-duty working conditions.
* **High Efficiency and Durability:** High-quality alloy gears + High-pressure bearing design, high volumetric efficiency, wear-resistant and impact-resistant, long service life. Stable and reliable: Integrated overload protection, strong self-priming capability, adaptable to continuous operation under complex working conditions. Convenient maintenance: Standardized structural design, simple disassembly and assembly, efficient replacement of wearing parts.

Get a personalized quote now

1. 803268867 Fitting RED15/12LOMDCF
2. 803172037 Fitting EL15LOMDCF
3. 803190789 Flange Fitting GFS33/15LOMDCF
4. 803077467 Gear Pump WP15A1B330L05KA146N
5. 805006413 Bolt M12×35 GB/T5783-2000
6. 805338280 Gasket 12GB/T97.1-2002
7. 803191082 Flange Fitting GFS34/35LOMDCF
8. 380300729 Paper Gasket
9. 803304451 Fitting EW15LOMD71
10. 803164300 Fitting GE15L7/8UNFOMDCF
11 803190999 Fitting GE08L7/16UNFOMDCF
12 803164728 Fitting GE12L7/16UNFOMDCF
13 803424763 Flange Fitting GFS34/22LOMDCFU
14 803077032 Piston Pump FRL074BLS2617
15 803402646 Flange Assembly 5151HK-32
16 805338261 Gasket 12 GB/T93-1987
17 803192422 O-ring 125×2.65 GB/T3452.1-2005

*For other spare parts procurement needs, please contact us!