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SBS120 External Meshing Gear Pilot Pump Square Shaft Drive For CAT 320C 320D

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SBS120 External Meshing Gear Pilot Pump Square Shaft Drive For CAT 320C 320D
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Features
Specifications
Part Number: SBS120
Productname: Pilot Pump
Key Words: Pilot Gear Pump, Auxiliary Pilot Pump
Volumetric Efficiency: ≥%92
Inletsize: 1/2 Inch
Mountingtype: Flange Mount
Warranty Period: 12 Months
Flowrate: 10 L/min
Outletsize: 1/4 Inch
Speed: 3000 RPM
Pressure Angle: 30°
Speed Range: 600-3000 R/min
Displacement: 25 Cm³/r
Operatingpressure: 2500 Psi
Highlight:

SBS120 external meshing gear pump

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CAT 320C 320D pilot pump

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square shaft drive pump
Basic Infomation
Place of Origin: China，Hebei
Brand Name: Runhe
Certification: CE、ISO9001
Model Number: SBS120
Payment & Shipping Terms
Packaging Details: Wooden box
Delivery Time: 7-15days
Payment Terms: L/C,D/A,D/P,T/T
Supply Ability: 60,000 pieces/year
Product Description

GEAR PILOT PUMP SBS120 FOR CAT320C CAT320D MEDIUM‑SIZED TRACKED EXCAVATOR

Pilot Pump Introduction


The SBS120 pilot pump, a gear‑type auxiliary hydraulic pump manufactured by Precision Machinery, is primarily used to provide stable low‑pressure pilot control oil pressure for the main hydraulic system of medium‑sized excavators (usually equipped with SBS120 series axial piston main pumps). This ensures precise response of control components such as operating handles and valve groups, enabling smooth start‑up, switching, and proportional control of excavator movements. It also avoids the main pump directly bearing high‑frequency control loads, thereby improving system reliability, response speed, and overall operating comfort. It is widely used in 20‑25 ton crawler excavators such as CAT 320C, CAT 320D, CAT324D, and is typically installed at the rear or side of the main pump, supporting earthmoving, construction, and other engineering scenarios.

This pilot pump series contributes to overall machine safety by providing stable and controlled pressure signals. Consistent output helps prevent sudden or erratic movements that could affect operational safety.

As an experienced hydraulic manufacturer, Hebei Runhe operates with 12+ years of expertise. It supplies hydraulic cylinders, pumps and motors to agriculture, lifting and engineering sectors. It provides non‑standard customization and follows diversified development and lean management.

Pilot Pump Parameters


Model Nominal displacement(mL/r) Pressure(Mpa)
Speed(r/min)


Rated Pull Optimum speed Speed range
SBS120 11 2.6 3.3 2100 500‑3000

 Pilot Pump Services

  • Technical Guidance: Free detailed installation manuals, model selection consultation, online video guidance, and remote fault diagnosis support are provided.
  • Worry-Free After-Sales Service: Enjoy a 12-month warranty on the entire machine, followed by lifetime technical consultation and preferential spare parts supply after the warranty period.
  • Customization Support: Professionally accepting OEM/ODM orders, we can provide personalized designs and exclusive solutions based on your working conditions.
  • Sufficient Inventory: Popular models are always in stock, ensuring prompt delivery for urgent needs and reducing your waiting time.

FAQ

Q: What is the warranty period?

A: We offer a one-year warranty. 


Q: Can this pilot pump directly replace the original?

A: Yes, the high-quality compatible pilot pump has the same installation dimensions and performance parameters as the original, and can be directly replaced without modifying the piping.


Q: I couldn't find my model. Can I still use it?

A: We recommend providing your excavator's specific model number, a photo of the main pump, or the original pump's nameplate information. We can help you confirm compatibility free of charge.

SBS120 External Meshing Gear Pilot Pump Square Shaft Drive For CAT 320C 320D

SBS120 External Meshing Gear Pilot Pump Square Shaft Drive For CAT 320C 320D

Tag:

external gear pump

excavator pilot pump

hydraulic pilot pump

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