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SY215-10 SY205C Excavator Hydraulic Pump V90N130VR 211-05220 21105220 Piston Pump for Construction Machinery Parts

Name: SY215-10 SY205C Excavator Hydraulic Pump V90N130VR 211-05220 21105220 Piston Pump for Construction Machinery Parts
Brand: Lanzhou Fudong Guangqi Trading Co., Ltd
SKU: V90N130VR
Price: Negotiable USD
Availability: InStock

Model Number:	V90N130VR
MOQ:	1 Pc
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Color:

Grey

Packaging Details:

Carton

Highlight:

SY215-10 excavator hydraulic pump

V90N130VR piston pump

construction machinery hydraulic pump

Product Description

SY215-10 SY205C Excavator Hydraulic Pump V90N130VR 211-05220 21105220 Piston Pump for Construction Machinery Parts

Working Role

Hydraulic main pump is the power origin of excavator hydraulic system, powered by engine to generate high-pressure hydraulic oil for boom, arm, bucket, walking and slewing hydraulic components.

Available Models

Most excavators install axial variable piston pumps; medium and large diggers use one-piece dual main pump with tail pilot gear pump. Main pump pressure 28~35MPa, pilot pump 3~4MPa for joystick and valve spool control.

Internal Parts Intro

Multiple pistons inside cylinder block finish oil suction and compression with shaft rotation. Swash plate angle directly controls pump displacement. Side regulator receives hydraulic signal to swing swash plate for flow adjustment. Valve plate separates low-pressure inlet and high-pressure outlet cavity.

Working Control Logic

Constant power shrinks pump displacement under heavy load to avoid flameout; LS control only supplies needed oil to cut idle fuel waste; pressure cut-off drops displacement to minimum to protect hydraulic accessories.

Repair Common Issues

Worn pistons/valve plate inner leakage or stuck regulator results in slow machine speed; regulator stuck on large displacement causes overload and black smoke; severe leakage makes hydraulic oil overheat; air or insufficient oil leads to abnormal pump noise.

Maintenance Suggestion

Replace hydraulic oil and filters regularly, block air from suction pipeline and maintain normal liquid level to reduce pump failure rate.

Machinery Test Report	Provided	Warranty	3 Months
Video outgoing-inspection	Provided	Brand Name	OEM
Place of Origin	China	Product Name	Hydraulic Pump
Model	V90N130VR	MOQ	1 Piece
Quality	High-Quality	Delivery time	7-15 Days
Standard or Nonstandard	Standard	Application	Excavator Machinery
Size	Standard Size	Color	Grey

SY215-10 SY205C Excavator Hydraulic Pump V90N130VR 211-05220 21105220 Piston Pump for Construction Machinery Parts Company Profile

Tags:

Excavator Machinery Parts

Hydraulic Main Control Valve

Diesel Engine Parts

Hydraulic Main Pump

Excavator Swing Motor

Excavator Travel Motor

Swing Motor Gearbox

Excavator Hydraulic Cylinder

Swing Motor Case

Excavator Joystick Handles

Excavator Foot Pedal Valve

Travel Motor Gearbox

Excavator Turbocharger

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