Engineered to exact Hitachi OEM specifications, the 263G712021 hydraulic main pump delivers critical hydraulic pressure (210+ bar) for ZW220 series wheel loaders. This precision component powers lift/tilt circuits and implements, featuring drop-in replacement compatibility with original part 263G7-12021.
Precision Compatibility:
| Model Series | Specific Variants |
|---|---|
| ZW220-5 | ZW220-5G, ZW220-5K, ZW220-5M (2014-2017) |
| ZW220-6 | ZW220-6G, ZW220-6K, ZW220-6M (2018-2021) |
| ZW220-7 | ZW220-7G, ZW220-7K (2022-Present) |
| Special Configurations | High-Flow (HF) variants |
Critical Failure Prevention Features:
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Cavitation-Resistant Design: Helical gear geometry reduces air entrapment risk
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Abrasion Defense: Hard-chromed shaft (HRC 62) + boron steel gears
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Leak-Proof Sealing: Triple-lip seals rated for 14,500 PSI
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Thermal Management: Stable operation from -30°C to 125°C
Performance Validation Data:
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Flow Rate: 110 L/min @ 2,200 RPM (±3% tolerance)
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Pressure Range: 210 bar continuous / 260 bar peak
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Service Life: 8,000+ hours (ISO 4406:2017 fluid standards)
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Vibration Tolerance: <4.5 mm/s RMS at max load
Core Applications:
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Quarry aggregate handling
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Snow removal operations
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Log loading in forestry
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Для успешного анализа необходимо учитывать различные факторы .