HUNG RONG HYDRAULIC TECH. CO., LTD

705-21-31020

BRAND
KOMATSU
PART NO
705-21-31020
MODEL NO
SAL2-36-RF (Rear Port Type)
  • Specification
  • Product Description
  • Product Scenario
  • Product Advantage
Model Displacement
(cm3/rev.)
Max. Pressure
(kg/cm2)
Rated Pressure
(kg/cm2)
Speed
(r.p.m.)
Max. Min.
SAL2-36-RF (Rear Port Type) 36.1 250 210 3000 800

 

Port Type Inlet Outlet
Flange Port Ø32 Ø19

 

Applicable to :

D31E-20, D31A-20, DA31AM-20, D31Q-18, D31PL-20, D31PLL-18, D31PLL-20, D31PL-18, D31P-20, D31P-20T, D31P-20A, D31PG-20A, D31P-18, D31P-18A, D37P-5A, D37PG-5A, D37A-5, D37E-5, D31S-18, D31S-20, D31SM-20, D31Q-20, D31Q-18, DRT037-1B-E, DRT031-2J-E, DRT031-2H, DBM031-2D, DNH031-3L, DNH031-3K-D, DNH031-3M, DNH031-3K-E

  • Part Number: 705-21-31020

 

  • Model: SAL2-36-RF (rear port type)

 

  • Displacement: 36.1 cm³/rev

 

  • Rated Pressure: 210 kg/cm²

 

  • Maximum Operating Pressure: 250 kg/cm²

 

  • Speed Range: 800–3000 r.p.m.

 

  • Port Connections: Flange ports (Ø32 Inlet / Ø19 Outlet)

 

  • Manufacturer: Hung Rong Hydraulic Tech. Co., Ltd.
  • Komatsu Equipment: Engineered for Komatsu bulldozers and crawler tractors, including the D31 and D37 series.

 

  • System Functions: Delivers reliable hydraulic power transmission for precise dozer blade control, ripper operations, and steering systems.

 

  • Work Environments: Built to withstand harsh operating conditions during extended duty cycles in mining, construction sites, and land development projects.

 

  • Applications: Essential power source for contractors needing professional-grade control and durability in specialized earthmoving equipment.
  • Replacement: 100% precision-engineered to meet stringent Komatsu OEM specifications, offering cross-model compatibility with an exact direct fitment.

 

  • Taiwan-Made Quality: Manufactured by Hung Rong Hydraulic Tech. Co., Ltd. in Taiwan, combining deep hydraulic expertise with rigorous quality assurance testing.

 

  • Heavy-Duty Reliability: Sustains a stable 36.1 cm³/rev displacement across a wide speed range (up to 3000 rpm) and high pressures up to 250 kg/cm².

 

  • Easy Installation: The rear port flange configuration ensures seamless integration into existing circuits, significantly reducing installation complexity and maintenance downtime.