K3V112DTP Hydraulic Piston Pump
1. Product Overview
K3V112DTP is Kawasaki tandem variable displacement swashplate axial piston pump, widely adopted as the main hydraulic pump for 20-ton class excavators.
This model features a built-in PTO (Power Take-off) port on the pump housing, which distinguishes it from standard K3V112DT. It can install auxiliary pumps or drive additional working devices. Equipped with negative flow control or electronic proportional control regulators, it realizes automatic adjustment of flow and pressure according to load changes.
Both original Kawasaki pumps and high-quality interchange aftermarket replacement pumps are available for equipment maintenance and overhaul.
Model Code Explanation
- K3V: Kawasaki open-circuit axial piston pump series
- 112: Theoretical displacement 112 cc/rev per single pump
- D: Double/tandem pump structure
- T: Tandem arrangement
- P: With PTO power take-off interface
2. Main Technical Parameters
Item Specification
Pump Type Tandem variable displacement swashplate axial piston pump
Single pump displacement 112 cc/rev
Rated Working Pressure 34.3 MPa
Maximum Peak Pressure 39.2 MPa
Maximum Self-priming Speed 2360 rpm
Volumetric Efficiency ≥93% under rated operating condition
Structure Feature With PTO port for auxiliary drive
Control Mode Negative flow control / Electronic proportional control (optional)
Applicable Fluid ISO VG46, VG68 anti-wear hydraulic oil
Operating Temperature -20℃ ~ +90℃
Standard Seals NBR; FKM high-temperature sealing kit optional
3. Working Principle
The engine drives the pump main shaft and cylinder block assembly to rotate. The reciprocating movement of pistons pushes hydraulic oil from suction cavity to pressure cavity.
The swashplate tilt angle can be adjusted by the servo piston inside the regulator. When the external load changes, the regulator automatically changes the pump displacement to match the required flow and pressure.
The reserved PTO output port can transmit power to auxiliary hydraulic components, realizing multi-pump combined drive.
4. Core Advantages
1. Integrated tandem double pump structure, compact layout, convenient installation on excavators.
2. Unique PTO interface, flexible to install pilot pump, gear pump and other auxiliary components.
3. High power density, stable high-pressure output, strong overload resistance.
4. Optimized flow distribution structure, low vibration, low running noise.
5. Multiple control versions (mechanical negative flow / electronic control) to match different excavator original systems.
6. Mature aftermarket interchange solutions, short delivery cycle and competitive cost compared with original pumps.
5. Application Range
This hydraulic main pump is specially designed for 20-ton crawler excavators.
Main applicable machine models:
Sumitomo SH200-5, SH210-5, SH240-5;
Case CX210B, CX210C, CX235C;
Doosan DX225LC-3;
XCMG XE200DL and other compatible domestic and imported excavators.
