Kawasaki KC Series Motor | KC38 KC45 KC38C KC45D | Variable Hydraulic Walking Motor | 4254809

Kawasaki KC Series High-Performance Variable Hydraulic Motors

Product Overview: The Kawasaki KC Series (including KC38, KC45, KC38C, and KC45D) represents the pinnacle of swashplate-type variable axial piston motors designed for travel drives and final drive systems. With its advanced displacement control logic, the KC series achieves seamless switching between high speed and high torque under complex load conditions, significantly enhancing the climbing capability and transit speed of construction machinery. This page features the precision configuration KC45DNERNFF07SNNA and part number 4254809. This series is the premier OEM choice for medium excavators, drill rig chassis, and various tracked travel mechanisms.

Key Technical Advantages:

• Dual-Displacement Automatic Switching: Supports 2-speed logic, automatically shifting to minimum displacement (high speed) on flat ground and instantly restoring maximum displacement (high torque) when encountering loads or inclines.

• Compact Integrated Design: Optimized specifically for the internal space of Final Drive gearboxes, achieving high power density within an extremely short axial footprint.

• Superior Mechanical Efficiency: Optimized valve plate designs and piston assemblies significantly reduce internal friction, ensuring long-term service life even under extreme pressure conditions.

• Precise Control Feedback: Available with various control suffixes (e.g., DNERN), supporting hydraulic proportional or electronic control logic for exceptionally smooth operation.

• Target Applications: Hitachi excavator travel drives, Kobelco track drives, automated drilling rig chassis, and various heavy-duty hydrostatic drive systems.

Detailed Models & Parameters:

• Core Series: Kawasaki KC Series Variable Displacement Units.

• Technical Specs Decoding:

  • KC38 / KC38C / KC38CNAR: Size 38, optimized for 10-15 ton machinery.

  • KC45 / KC45D / KC45DNERN: Size 45, delivering increased power output for 20+ ton equipment.

  • KC45DNERNFF07SNNA FF18NNNNNN: Configured with specific valve blocks, FF18 specialized flange sequences, and internal logic settings.

  • OEM Cross-Reference: 4254809 (Widely used across major excavator brands).

• Core Specifications:

  • Displacement Range: 38cc to 45cc classes.

  • Rated Pressure: 34.3 MPa (350 Bar).

  • Peak Pressure: 39.2 MPa (400 Bar).