Excavator Parts 14625695 K3V180DT-180R-1E12-V EC350E EC380E Hydraulic Pump
Price:
Negotiable
MOQ:
1 Pc
Delivery Time:
7-15days
Product Description
Excavator Parts 14625695 K3V180DT-180R-1E12-V EC350E EC380E Hydraulic Pump
Function
Serving as the core power component of excavator hydraulics, the main hydraulic pump is driven by the engine. It converts mechanical energy into high-pressure hydraulic energy, and conveys pressurized fluid to each hydraulic motor to drive boom, stick, bucket, travel and swing operations.
Type
Axial variable piston pumps are widely used on construction excavators. Medium and large excavators adopt integrated double main pumps with a rear-mounted pilot gear pump.
The twin high-pressure pumps adopt individual oil supply paths, feeding the main control valve for combined movements, with operating pressure of 28~35MPa.
The low-pressure pilot pump installed at the pump tail operates at 3~4MPa with low flow, offering pilot pressure for control levers and main valve spools.
The twin high-pressure pumps adopt individual oil supply paths, feeding the main control valve for combined movements, with operating pressure of 28~35MPa.
The low-pressure pilot pump installed at the pump tail operates at 3~4MPa with low flow, offering pilot pressure for control levers and main valve spools.
Internal Parts
The housing and cylinder block hold multiple piston assemblies. They rotate along with the main shaft to complete oil suction and pressurization.
The swash plate’s tilt angle determines piston stroke and overall pump displacement.
The external servo regulator actuates the swash plate per hydraulic feedback. Larger tilt means higher displacement and faster operation; smaller tilt saves fuel and prevents engine stall.
The valve plate isolates low-pressure inlet and high-pressure outlet for proper fluid distribution.
The swash plate’s tilt angle determines piston stroke and overall pump displacement.
The external servo regulator actuates the swash plate per hydraulic feedback. Larger tilt means higher displacement and faster operation; smaller tilt saves fuel and prevents engine stall.
The valve plate isolates low-pressure inlet and high-pressure outlet for proper fluid distribution.
Three Control Modes
Constant power control automatically reduces displacement under rising load to protect the engine and utilize power fully.
The LS load sensing system provides flow according to actual needs and keeps low displacement at idle to cut fuel cost.
The HP pressure limit function reduces pump displacement at maximum pressure to protect hydraulic lines and cylinders from rupture.
The LS load sensing system provides flow according to actual needs and keeps low displacement at idle to cut fuel cost.
The HP pressure limit function reduces pump displacement at maximum pressure to protect hydraulic lines and cylinders from rupture.
Common Failures
Internal leakage from worn pistons, faulty valve plates or blocked regulators causes sluggish movement and insufficient power.
When the regulator is locked at maximum displacement, the engine will overload, produce black smoke and stall under heavy loads.
Excessive internal leakage converts pressure loss into heat, leading to abnormal hydraulic oil temperature rise.
Air mixed in oil, insufficient fluid or damaged bearings and pistons will cause strange running noise.
When the regulator is locked at maximum displacement, the engine will overload, produce black smoke and stall under heavy loads.
Excessive internal leakage converts pressure loss into heat, leading to abnormal hydraulic oil temperature rise.
Air mixed in oil, insufficient fluid or damaged bearings and pistons will cause strange running noise.
Maintenance
Perform regular replacement of hydraulic oil and filters to protect precision parts from abrasive wear. Make sure suction pipes are tightly sealed to avoid air intake and unit vibration. Maintain hydraulic oil at standard level to prevent pump faults.
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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
|
China | Product Name |
Hydraulic Pump
|
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Model
|
K3V180DT-180R-1E12-V | 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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Color | Black |
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