More and more innovative technologies were applied to products with a heavy focus on hydraulic shovels. Using mechatronics for engine control was one of the examples of Japan's advanced electronics technology that surpassed the world standards.
Komatsu started marketing its original Wheel loaders, WA series, when the partnership with International Harvester ended in February 1982. In addition to its powerful productivity, the series offered durability, livability, good visibility, and very light handling. WA300, WA 350, WA400, and WA450 were available all at the same time.
Both excavating and pulling power are the strongest among Wheel loaders of this class. It has a large dumping clearance and reach, and WA450 could load into a 20-ton Dump truck. Its power line used a Komatsu's original component that had provided excellent durability and reliability. All of the four wheels were fitted with the sealed wet processed disc brake, which enabled reliable security on soft surfaces and in the water pools.
The WA series returned Komatsu to market leader once again.
It was 1949 when the first wheel loader was manufactured in Japan, however, it was not until mid 1960's when Komatsu entered the wheel loader market aligning with International Harvester. From JH series in the beginning, to the 500 series, to Komatsu's original WA series, our wheel loaders have met the needs of construction sites by scaling up, coping with the environment and adopting advanced technology such as mechatronics and IT.