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C.A.T Main Hydraulic Pump Assembly 551-1122 5511122 Hydraulic System Part
Product Specifications
Part Name
Main Hydraulic Pump
Part Number
551-1122 5511122
Brand
C.A.T (100% Original Guaranteed)
Place Of Origin
Multiple Origins
Quality Standard
Genuine Standard
Condition
100% Brand New
MOQ
1 Piece
Packaging
Original CaT Sealed Packaging with Authenticity Label
Product Features
Electro-Hydraulic Dual-Swashplate Variable & Load-Sensing Power Matching: Features tandem/parallel variable-displacement axial piston pumps integrated with high-precision electro-hydraulic proportional valves. It dynamically adjusts the swashplate angle in milliseconds based on operator input and real-time load resistance, delivering flow-on-demand to optimize hydraulic horsepower efficiency and cut fuel consumption.
Ultra-High Operating Peak Pressure & Heavy-Duty Tribological Pair: Encased in a heavy-duty cast-steel housing rated for high working pressures up to 35–38 MPa (350+ bar). Internal components including cylinder blocks, pistons, and valve plates feature advanced nitriding and wear-resistant coatings, ensuring high volumetric efficiency and anti-cavitation durability under harsh mining conditions.
Modular Dual-Pump Flow Merging & System-Level Integration: Integrated with flow-merging valve manifolds and electronic pressure sensor ports directly on the pump head, allowing automatic dual-pump flow consolidation during high-load lifting or rapid compound operations. Designed with standard SAE high-pressure flanges and splined shafts for streamlined engine-bay integration and simplified maintenance.
Friendly Reminder: Please ensure this part number matches your machine model and serial number. We strongly recommend checking with the official parts catalog or providing your machine serial number before purchase to avoid ordering the wrong part.
Contact Information
Contact Person
Sylvia (International Sales Specialist)
Anna
Whatsapp/WeChat
+86 19120194795
+86 13229460031
Email
sale01@uniwaypart.com
-
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Agent,Trading Company
Year Established:
2006
Total Annual:
¥35,000,000-¥60,000,000
Employee Number:
30~50
Ecer Certification:
Verified Supplier
UNIWAY Machinery Co., Limited has 20 years of experience in international trade and service within the excavator parts industry. We deeply integrate supply chains from internationally renowned brands such as Isuzu, Hitachi and Sany, and our own brand UNIWAY, committed to deliveri...
UNIWAY Machinery Co., Limited has 20 years of experience in international trade and service within the excavator parts industry. We deeply integrate supply chains from internationally renowned brands such as Isuzu, Hitachi and Sany, and our own brand UNIWAY, committed to deliveri...