Kawasaki Begins Mass Production of K7V320, One of the World’s Highest-Power-Density Hydraulic Pumps for Construction Machinery — Combining high power density with enhanced durability to support the reliable operation of large construction machinery —
Jul. 29, 2026
Tokyo, July 29, 2026 — Kawasaki Heavy Industries, Ltd. announced that it began mass production of the K7V320 in June 2026. The K7V320 is a large hydraulic pump for construction machinery used in mining and infrastructure projects and offers one of the world’s highest power densities, measured as output per unit weight. Annual production of approximately 2,000 units is planned.
In recent years, the spread of generative AI and expanding use of cloud services have driven increased investment in data centers worldwide, boosting demand for the electricity, semiconductors and mineral resources required for their construction and operation. Consequently, mining development and infrastructure projects are increasingly relying on large construction machinery, further increasing demand for key components that support greater operational efficiency and reliable operation.
In response to these market needs, the K7V320 delivers significantly improved performance while retaining the same external dimensions as the current K7V280 model, helping enhance the functionality and ensure the reliable operation of large construction machinery. In addition, analytical techniques were used to reinforce key components, enabling the pump to deliver high durability.
Key Features
1) Faster, more powerful operation for large construction machinery
| • | The use of materials with high seizure resistance and the application of heat treatment to the rotary components—the core parts of the hydraulic pump—enable a displacement of 322 cm3, the largest in Kawasaki’s construction machinery pump lineup, thereby allowing faster actuator operation. |
| • | The enhanced rigidity of the rotary components and other components enables a rated pressure of 37 MPa, the highest in Kawasaki’s construction machinery pump lineup, contributing to increased actuator force. |
2) More reliable operation of large construction machinery
| • | The adoption of a high-rigidity housing and precision control of components at the micrometer level minimize deformation and reduce stress, thereby extending the pump’s service life. |
Hydraulic pumps supply hydraulic fluid to the actuators in construction machinery and serve as the heart of the hydraulic system, helping ensure reliable operation under demanding conditions. Since developing its first swash-plate hydraulic pump in-house in 1968, Kawasaki has supplied pumps—primarily for hydraulic excavators—to construction machinery manufacturers in Japan and around the world. Kawasaki’s hydraulic pumps offer world-class efficiency and high durability, meeting the demanding requirements of customers worldwide.
Kawasaki will continue to draw on its extensive expertise and advanced technologies in hydraulic equipment to further enhance product value. By enhancing the functionality and reliability of construction machinery, the Company aims to contribute to a more prosperous society by supporting the industrial infrastructure underpinning growth sectors such as semiconductors and mineral resources.
| Specifications | |
|---|---|
| Displacement [cm3] | 322 |
| Rated pressure [MPa] | 37 |
| Peak pressure [MPa] | 42 |
| Maximum self-priming speed [min-1] | 1,700 [2,000]*1 |
*1 With impeller
Reference Links
K7V Series
Kawasaki Super Green Product
https://global.kawasaki.com/en/industrial_equipment/hydraulic/pumps/k7v.html
Product Introduction: Hydraulic Pumps for Construction Machinery and Industrial Vehicles
https://global.kawasaki.com/en/industrial_equipment/hydraulic/pumps/
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