Kawasaki K3V112 Series Pump | K3V112DT, K3V112DP | Excavator Main Hydraulic Pump

Kawasaki K3V112 Series Main Hydraulic Pump for Excavators

Product Overview: The Kawasaki K3V112 series is the gold standard of hydraulic power for the global excavator industry. As a 112 cm³/rev tandem axial piston pump, it is specifically engineered for the high-intensity duty cycles of 20 to 25-ton hydraulic excavators. Utilizing either DT (Tandem) or DP (With through-drive) configurations, this series integrates two independent pumping units within a single housing, delivering a rated operating pressure of 34.3 MPa. Featured models like the K3V112DT-1DFR and K3V112DP-9NR9 are renowned for their superior power-to-weight ratio, precise flow modulation, and exceptional stability during multi-function synchronization.

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, pistons, and cylinder block pairing ensure an extended service life under grueling field conditions.

• High-Response Precision Regulators:

  • 1DFR / 1RER Control: Supports Total Power Control, Negative Flow Control (NFC), and Pressure Cut-off. It dynamically adjusts flow based on load demand to significantly reduce fuel consumption.

• Tandem/Parallel Architecture (DT/DP): Two 112cc units operate in tandem via a connecting shaft, enabling synchronized power allocation for travel motors and front-end attachments.

• Optimized for Specific OEMs:

  • 9N62 / 9NR9 / 9C39 Suffixes: Represent customized regulator curves and port configurations tailored for major excavator brands (e.g., Hitachi, Daewoo, Hyundai), ensuring perfect “plug-and-play” compatibility.

• Superior Volumetric Efficiency: Optimized internal sealing technology minimizes internal leakage even in high-heat and high-pressure environments, ensuring maximum breakout force and rapid cycle times.

Detailed Models & Parameters:

• Core Series: Kawasaki K3V112 Series.

• Representative Models: K3V112DT-1DFR-9N62, K3V112DP-119R-9NR9-D, K3V112DT-1RER-9C39.

• Displacement: 112 cm³/rev per pump (Total 224 cm³/rev).

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

• Application: 20 to 25-ton class hydraulic excavators.

• Control Type: Constant Power Control, Negative Flow Control.