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K5V140DT / K5V140DTP Hydraulic Pumps
K5V140DT / K5V140DTP are 140 mL/rev variable axial piston pumps from Kawasaki's K5V series, developed as an advanced iteration of the K3V lineup. Designed for open-circuit hydraulic systems in medium-to-large construction machinery, they improve efficiency, power density, and control precision while maintaining high reliability. Rated pressure is 34.3 MPa, maximum pressure 39.2 MPa, making them ideal for 25–30 t equipment under high-pressure, heavy-load conditions.
Key Features
1.Compact, High-Power Design
Upgraded semi-log swashplate and optimized plunger-valve structure achieve higher power density without increasing displacement. K5V140DTP employs a dual-pump series layout with a shared drive shaft, eliminating the need for an external power distributor. This enhances transmission efficiency, reduces weight, and saves installation space, supporting compact hydraulic system layouts in large machinery.
2.Energy Efficient with Strong Self-Priming
Advanced spherical valve plate and hydraulic balance design ensure smooth cylinder rotation and low friction. High volumetric and mechanical efficiency is maintained even at low pressure and speed, minimizing heat generation and energy loss. Maximum self-priming speed reaches 2,160 min⁻¹, delivering robust suction and reducing cavitation risks for stable oil supply in demanding conditions.
3.Durable and Reliable
Large-capacity heavy-duty main bearings combined with a plunger return mechanism that compensates for slipper wear extend service life and reduce wear on critical friction components. Leveraging Kawasaki's proven mobile hydraulic design and validation, these pumps operate reliably under rated 34.3 MPa and peak 39.2 MPa pressures, offering strong impact resistance and high system durability.
4.Low Noise Operation
Optimized pressure transition zones on the valve plate, reinforced housing, and damping features reduce pressure fluctuations and mechanical vibrations. Noise levels are lower than equivalent K3V pumps, enhancing operator comfort and reducing environmental disturbance.
5.Versatile and Precise Control
Supports mechanical, hydraulic, and electrical control inputs, with capabilities for constant-power, pressure-limiting, and load-sensing control logic. Flow and pressure adjustments are fast and accurate, enabling precise execution of complex multi-function tasks.
6.Flexible Integration and Easy Replacement
Multiple flange, shaft, and control interface options are available, including series layouts with PTO ports. Installation dimensions are highly compatible with the classic K3V112DTP, allowing direct upgrades without modifying the host machine, minimizing retrofitting costs.
Core Advantages
| Model | K5V140DT |
|
Advantage |
Description |
|
Upgraded Efficiency |
Enhanced design improves flow response and overall efficiency, reducing fuel consumption and lowering operational costs over time. |
|
Broad Operating Range |
Rated 34.3 MPa, maximum 39.2 MPa; suitable for medium-to-large machinery under high-pressure, heavy-load, and variable-load conditions, providing strong stability and overload tolerance. |
|
Direct Replacement |
Fully compatible with K3V112DTP mounting dimensions, enabling straightforward pump upgrades without redesigning the base or piping, shortening retrofit time and costs. |
|
Low Maintenance |
Mature, widely produced series with global spare parts availability; strong contamination resistance; routine maintenance requires only oil cleanliness checks and filter replacements. |
|
Superior Operational Control |
High-precision, responsive control enhances smoothness of actuators, coordination of multi-function operations, and overall machine performance. |
Applications
Primarily suited for 25–30 t hydraulic excavators, K5V140DT/DTP can also be applied to crawler drills, large loaders, truck-mounted cranes, concrete pumps, crushers, and other medium-to-large mobile hydraulic equipment. Compatible with open-circuit systems, they provide reliable power and precise control for machines performing multi-function operations under high-load, variable conditions, making them a leading choice for main hydraulic system upgrades in medium-to-large construction machinery.
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