CAT 323GC Hydraulic Main Pump 531-9886 531-9885
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Model: 323GC | Part name: hydraulic Pump |
Brand: SWAFLY | Place of Origin: China |
Condition: Original Genuine & Oem New | Warranty: 12 months |
MOQ: 1 pcs | Production Capacity: 500pcs /Month |
Standard or Nonstandard: Standard | Payment Term: L/C,T/T, Western Union, Tradeassurance |
Delivery Time: 1-3 days (depend on order) | Means of Transport: By Sea, Air or DHL/FEDEX/TNT/EMS |
Guarantee: We will check the parts and send detail pictures to buyer to confirm before shipping. |
The CAT 323GC Hydraulic Main Pump models 531-9886 and 531-9885 are critical components of the excavator's hydraulic system,
designed to deliver optimal performance, efficiency, and durability.
1. Advanced Hydraulic Design
The 323GC utilizes a positive flow control (PFC) pump system,
which automatically adjusts pump flow based on valve priority demands.
This minimizes energy loss and optimizes fuel efficiency.
The pump integrates with electrohydraulic valves and Smart Mode,
allowing automatic adjustments to engine and hydraulic power based on digging conditions.
This ensures balanced power delivery and precise control for tasks like trenching or lifting.
2. Key Technical Features
Flow and Pressure Regulation: The pump dynamically prioritizes hydraulic flow to match operator commands,
reducing cycle times in light-to-medium load operations.
Energy Efficiency: By reducing energy losses through optimized flow control,
the pump contributes to the 323GC’s 10% lower fuel consumption compared to older models like the 320D2.
Durability: Designed for extended service intervals,
the hydraulic system uses high-quality filters (e.g., 3,000-hour hydraulic oil filter life) and contamination-resistant components to ensure longevity in harsh environments.
3. Compatibility and Maintenance
The pumps are compatible with Cat® work tools and auxiliary hydraulics, supporting attachments like hammers or grapples.
Maintenance is simplified with ground-level access to service points,
including hydraulic oil checks and filter replacements, minimizing downtime.
4. Integration with Operator Systems
The hydraulic system interfaces with the Cat® Operator ID and touchscreen monitor,
enabling personalized power mode settings (e.g., Smart Mode) and real-time diagnostics.
Auto Hammer Stop functionality protects hydraulic tools by automatically shutting down after 30 seconds of continuous use,
preventing overheating and wear.
5. Environmental Adaptability
The pumps operate efficiently in extreme conditions,
including altitudes up to 3,000 meters and ambient temperatures ranging from -18°C to 52°C without derating.
For specific part details (e.g., pressure ratings, flow rates),
consult Caterpillar’s official technical documentation or contact a Cat® dealer for precise specifications.
Note: While the exact models 531-9886/531-9885 are not explicitly detailed in the search results,
the above analysis aligns with the 323GC’s hydraulic system architecture described in



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