Kawasaki Heavy Industries, Ltd has begun mass production of the K7V320, a large hydraulic pump designed for construction machinery used in mining and infrastructure projects. Production of the new pump began in June 2026, with annual output planned at approximately 2,000 units.
The K7V320 has been developed to deliver high power density, measured as output per unit weight, while maintaining the same external dimensions as Kawasaki’s existing K7V280 model. The company said the new pump responds to growing demand for large construction machinery capable of delivering higher performance and reliable operation in demanding mining and infrastructure applications.
Increasing investment in data centres, driven in part by the expansion of generative artificial intelligence and cloud services, is contributing to demand for electricity, semiconductors and mineral resources. As mining development and infrastructure projects expand to support these sectors, large construction machinery is playing an increasingly important role, creating demand for hydraulic components that can improve operating efficiency and reliability.
The K7V320 features a displacement of 322 cm³, the largest among Kawasaki’s construction machinery pump lineup. The use of materials with high seizure resistance and heat treatment of rotary components, which form the core of the hydraulic pump, supports faster actuator operation and improved machine performance.
The pump also achieves a rated pressure of 37 MPa, the highest in Kawasaki’s construction machinery pump lineup. Enhanced rigidity of the rotary components and other components enables the higher pressure capability, contributing to greater actuator force for large construction equipment.
Reliability has also been addressed through the design of the pump housing and its internal components. A high-rigidity housing, combined with precision control of components at the micrometre level, is designed to minimise deformation and reduce stress during operation. Analytical techniques were also used to reinforce key components, supporting high durability and longer service life.
Hydraulic pumps play a central role in construction machinery by supplying hydraulic fluid to actuators and supporting the operation of the hydraulic system under demanding working conditions. Kawasaki has developed hydraulic pumps in-house since introducing its first swash-plate hydraulic pump in 1968. The company has supplied hydraulic pumps, primarily for hydraulic excavators, to construction machinery manufacturers in Japan and international markets.
Kawasaki said its hydraulic pump technologies combine efficiency and durability to meet the requirements of customers worldwide. The company will continue to apply its expertise in hydraulic equipment to develop products with enhanced functionality and reliability. Through advances such as the K7V320, Kawasaki aims to support the performance of construction machinery used in mining and infrastructure development and contribute to industrial infrastructure serving growth sectors including semiconductors and mineral resources.
