Kawasaki K3V Series Pump | K3V112DT, K3V180DT, K3V112DP | Excavator Main Hydraulic Pump

Kawasaki K3V Series Main Hydraulic Pump for Excavators

Product Overview: The Kawasaki K3V series is the world’s most widely adopted main pump solution for medium to large hydraulic excavators. Utilizing a highly mature axial piston design, this series features industry-standard displacements: 112cc (K3V112) and 180cc (K3V180). Featured models, such as the K3V112DT (Tandem Pump) and K3V112DP (with Through-Drive), deliver exceptional power output under a continuous pressure of 34.3 MPa. Renowned for its superior power-to-weight ratio and flexible control modulations (Positive/Negative Flow Control), the K3V series ensures smooth multi-function synchronization and maximum breakout force.

Key Technical Advantages:

• Heavy-Duty Reliability & Longevity: Rated for a continuous operating pressure of 34.3 MPa (343 Bar) with peak capabilities up to 39.2 MPa. Reinforced spherical bushings and piston designs guarantee an extended service life under grueling field conditions.

• High-Response Precision Control:

  • DT/DP Configurations: Tandem pumps enable synchronized power allocation between travel motors and front-end attachments.

  • Versatile Control Logic: Supports Total Power Control, Constant Power Control, and Load Sensing to significantly reduce fuel consumption.

• Superior Volumetric Efficiency: Optimized valve plate and cylinder block pairing minimize internal leakage, maintaining stable flow output even in high-temperature and high-pressure environments.

• Integrated Compact Design:

  • NJ9/N62 Suffixes: Represent customized regulator and housing configurations tailored for specific excavator brands (e.g., Hitachi or Hyundai), ensuring perfect “plug-and-play” replacement.

• Global Supportability: As the industry standard, parts interchangeability is extremely high, making global maintenance and spare parts procurement simple and cost-effective.

Detailed Models & Parameters:

• Core Series: Kawasaki K3V Series.

• Representative Models: K3V112DP-119R-9S09-D, K3V180DT-1RAR-9NJ9, K3V112DT-1DFR-9N62.

• Displacements: 112 cm³/rev (x2), 180 cm³/rev (x2).

• Pressure Ratings: Rated at 34.3 MPa (4975 PSI); Peak cycles up to 39.2 MPa (5685 PSI).

• Application: 20 to 40-ton class hydraulic excavators.