MECHANICAL ENGINEERING HERITAGE NO.48
Hydraulic Excavator UH03
The Model UH03 is a pure domestic hydraulic excavator produced for the first time in Japan and was developed by Hitachi, Ltd. (currently Hitachi Construction Machinery Co., Ltd.). Before that, the single-pump type produced through technical cooperation with European countries had been the mainstream. Hitachi developed a two-pump, two-valve system unique to Japan, which enabled combined actions of lifting and turning a boom, thereby drastically improving the workability.
The system was adopted subsequently by many manufacturers. In this sense, the machine is a heritage that can be situated at the origin of the development of today’s hydraulic excavators.
On exhibition (Reservation required)
Tsuchiura Works, Hitachi Construction Machinery
- Hours open:
- 9:00–16:00
- Admission fee:
- Free
- Days closed:
- Saturdays, Sundays, public holidays, year-end/New Yearʼs, Bon holidays or other plantʼs holidays
- Address:
- 650 Kandatsu-machi, Tsuchiura-shi, Ibaraki 315-0013
- Tel:
- +81-29-832-7150
- URL:
- http://www.hitachi-kenki.co.jp/
- Access:
- 15 mins. on foot from Kandatsu Sta., JR Joban Line