Komatsu Hydraulic Excavators Production process

How Komatsu makes the largest, most powerful hydraulic excavators in the world
Komatsu is a Japanese multinational corporation that manufactures construction, mining, forestry equipment, as well as diesel engines. The corporation was named after the city of Komatsu, Ishikawa Prefecture.

Komatsu has manufacturing operations for production ecavators in Japan, Asia, Americas and Europe.
Komatsu Japan ltd. manufactures excavators at plants in Osaka, Rokko Plant and Kanazawa Plant (there are production a super-large hydraulic mining excavators).
The Osaka Plant is known as the ‘mother factory’ for Komatsu construction machinery. In this biggest plant primarily produces medium- to large-size hydraulic excavators.
The Osaka Plant has two assembly shops, in which the assembly line for medium-size hydraulic excavators.

The Rokko Plant in Kobe City is assembles super-large hydraulic excavators by taking advantage of its proximity to Kobe Port to keep transport costs low.
In addition to the production of construction equipment, the Osaka Plant produces such key components as final drive units and generator motors for hybrid excavators and supplies them to main body assembly sites overseas.
0:00 about Komansu
0:12 foundry plant
0:47 welding shop
1:09 welding of track frame
1:37 welding process of boom and arm
2:02 body frame welding
2:30 body frame assembly process
3:05 assembly line of track frame
3:11 lower roller installation
3:38 cab built process
4:00 main assembly line
4:38 the hydraulic shop
5:20 engine assembling and installing
5:43 the rotary platform assembly process
6:04 shoes installation
6:16 Auto-reversing track frame mounting
6:22 Counterweight installation
7:08 boom and arm
7:30 Inspection, testing and quality assurance

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