PVD Hydraulic Pump PVD-0B-24P-8G3 For KubotaU25-3 Hydraulic Pump RB511-61112 Excavator Construction Machinery Parts
Price:
Negotiable
MOQ:
1 Pc
Delivery Time:
7-15days
Product Description
PVD Hydraulic Pump PVD-0B-24P-8G3 For KubotaU25-3 Hydraulic Pump RB511-61112 Excavator Construction Machinery Parts
As the core power source for excavator hydraulic circuitry, the main hydraulic pump is driven by the onboard engine to convert mechanical torque into high-pressure hydraulic power. This unit delivers pressurized hydraulic fluid to hydraulic motor assemblies, actuating the full range of operational movements for excavator equipment. Axial variable piston pumps are universally equipped on modern engineering excavators. Mid-size and large excavator machines adopt a unified setup of twin main pumps paired with a rear-mounted pilot gear pump. A dual independent high-pressure oil delivery circuit feeds the main control valve assembly to support coordinated composite operations, with a standard working pressure spectrum of 28MPa to 35MPa. Mounted on the rear section of the chassis, the low-pressure pilot pump operates steadily at 3 to 4MPa with minimal flow output, supplying regulated pilot pressure oil for joystick manipulation and main valve spool actuation. Piston assemblies anchored to the cylinder block and pump housing revolve synchronously with the main spindle, completing continuous oil suction and pressurization cycles. Fine-tuning the swash plate’s oblique angle alters piston travel distance, thereby adjusting the pump’s overall displacement volume. A external servo regulating unit modulates swash plate positioning in response to real-time hydraulic feedback signals. Increasing the swash plate inclination boosts fluid delivery volume and machine operating speed, while reducing the angle curbs fuel consumption and eliminates unexpected engine stall. The valve plate assembly segregates low-pressure oil intake passages from high-pressure discharge channels to achieve precise hydraulic fluid distribution. Three specialized control logics underpin the pump’s stable and reliable performance. Constant power regulation proactively reduces pump displacement under elevated load conditions, safeguarding the engine and optimizing power utilization efficiency. The LS load-sensing system delivers adaptive fluid flow matching on-site working demands and retains low displacement during idle states to cut fuel waste. The HP pressure limiting mechanism truncates pump displacement at peak pressure thresholds, protecting hydraulic pipelines and hydraulic cylinders from burst failure. Common operational defects include internal seepage triggered by piston wear, valve plate fracture or regulator blockage, which leads to sluggish machine response and inadequate power output. A jammed full-displacement regulator results in engine overload, black smoke emission and sudden shutdown during heavy-load construction. Severe internal leakage converts hydraulic pressure loss into thermal energy, inducing abnormal overheating of hydraulic fluid. Hydraulic system air ingestion, insufficient oil volume, and worn bearings or pistons will generate irregular operating noise. Routine maintenance comprises scheduled replacement of hydraulic fluid and filter elements to prevent abrasion of high-precision internal components. Tight sealing of oil suction lines must be maintained to avoid air entry and mechanical vibration, with hydraulic fluid kept at calibrated levels to sustain consistent pump performance.
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Machinery Test Report
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Provided |
Warranty
|
3 Months |
|
Video outgoing-inspection
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Provided | Brand Name |
OEM
|
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Place of Origin
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China | Product Name |
Hydraulic Pump
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Model
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PVD-0B-24P-8G3 | MOQ |
1 Piece
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| Quality |
High-Quality
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Delivery time
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7-15 Days
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|
Standard or Nonstandard
|
Standard
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Application
|
Excavator Machinery
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Size
|
Standard Size
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Packing | Wooden Box |
Company Profile
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Company
Lanzhou Fudong Guangqi Trading Co., Ltd
Location
No. 7 West South Binhe Road, Xigu District, Lanzhou City, Gansu Province, China
Contact Person
Liang