EBZ230 Cantilevered Roadheader in Hard-rock Application

Name: Work Video:
Duration: 3 min 30 s
Description: Roadheader in medium hardness and soft rock than the tunneling speed while heading fast,but rock hardness is high,not only to single into is not high and the material cost increase,but also reduce the using life and through the loose blasting reoccupy determing cutting cut effectively solved the problem in hard rock excavation.
Yongling Zhang
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