Name: K3V112DT-1LHR-9C32 12T Hydraulic Main Pump SK200 R210 R215 R225 Excavator Construction Machinery Hydraulic Pump 31N6-10051
Brand: Lanzhou Fudong Guangqi Trading Co., Ltd
SKU: K3V112DT-1LHR-9C32 12T
Availability: InStock

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K3V112DT-1LHR-9C32 12T Hydraulic Main Pump SK200 R210 R215 R225 Excavator Construction Machinery Hydraulic Pump 31N6-10051

SK200 excavator hydraulic main pump

R210 construction machinery pump

12T hydraulic pump with warranty

Place of Origin:

China

Model Number:

K3V112DT-1LHR-9C32 12T

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Product Details

Color:

Black

Highlight:

SK200 excavator hydraulic main pump

R210 construction machinery pump

12T hydraulic pump with warranty

Payment & Shipping Terms

Minimum Order Quantity

1 Pc

Packaging Details

Carton

Delivery Time

7-15days

Payment Terms

T/T

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guangqi334@gmail.com

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Product Description

K3V112DT-1LHR-9C32 12T Hydraulic Main Pump SK200 R210 R215 R225 Excavator Construction Machinery Hydraulic Pump

Function

Driven by the excavator engine, the hydraulic main pump is the key component of the hydraulic system. It converts mechanical energy into high-pressure hydraulic energy, and delivers pressurized fluid to various hydraulic motors to drive boom, arm, bucket, travel and swing operations.

Type

Axial variable displacement piston pumps are widely adopted on engineering excavators. Medium and large excavators use combined dual main pumps with a rear pilot gear pump.
The two high-pressure pumps have independent oil supply passages, which feed oil to the main control valve to realize composite actions, with working pressure of 28~35MPa.
The low-pressure pilot pump at the pump tail operates at 3~4MPa with low flow, supplying pilot control oil for operating levers and main valve spools.

Internal Parts

The housing and cylinder block contain multiple piston assemblies that rotate with the main shaft to complete oil suction and pressurization.
The swash plate changes its tilt angle to adjust piston stroke and pump displacement. The external servo regulator drives the swash plate based on hydraulic feedback.
Increased tilt angle raises flow rate and operation speed; reduced tilt angle cuts fuel consumption and avoids engine stall.
The valve plate divides low-pressure inlet and high-pressure outlet to distribute hydraulic oil.

Three Control Modes

Constant power regulation automatically lowers pump displacement under increased load to protect the engine and improve power utilization.
The LS load sensing system provides flow on demand and keeps low displacement during idling to reduce fuel consumption.
The HP pressure limiting function reduces pump displacement at peak pressure to prevent hydraulic pipelines and cylinders from rupture.

Common Failures

Internal leakage caused by worn pistons, damaged valve plates or blocked regulators leads to slow operation and insufficient output power.
Regulator locked at maximum displacement will cause engine overload, black smoke and stall under heavy load.
Excessive internal leakage generates heat from pressure loss and causes hydraulic oil temperature to rise abnormally. Air entrainment, insufficient oil or damaged parts will produce abnormal noise.

Maintenance

Replace hydraulic oil and filters periodically to prevent precision parts from abrasive wear. Keep suction pipelines sealed well to avoid air intake and equipment vibration. Maintain hydraulic fluid at standard level.

Machinery Test Report	Provided	Warranty	3 Months
Video outgoing-inspection	Provided	Brand Name	OEM
Place of Origin	China	Product Name	Hydraulic Pump
Model	K3V112DT-1LHR-9C32 12T	MOQ	1 Piece
Quality	High-Quality	Delivery time	7-15 Days
Standard or Nonstandard	Standard	Application	Excavator Machinery
Size	Standard Size	Color	Black

K3V112DT-1LHR-9C32 12T Hydraulic Main Pump SK200 R210 R215 R225 Excavator Construction Machinery Hydraulic Pump 31N6-10051 0 Company Profile

Tags：

K3V112DT-1LHR-9C32 12T Hydraulic Main Pump SK200 R210 R215 R225 Excavator Construction Machinery Hydraulic Pump 31N6-10051

SK200 excavator hydraulic main pump

R210 construction machinery pump

12T hydraulic pump with warranty

SK200 excavator hydraulic main pump

R210 construction machinery pump

12T hydraulic pump with warranty

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PVD-0B-18B-6AG3-4950A 20400006 Hydraulic Pump for Excavator Small Piston Hydraulic Pump Construction Machinery Parts

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