Subway Project

Below pictures was took at the construction site of No.2 line of Shengyang subway. At begining the construction company equiped the TBM with cutting teeth and the machinery moved forward about 1200m. The cutter head was ruined because the cutting teeth equiped with small carbide tip.


Subway Project

RZ redesigned the cutting teeth of the cutter head, revised the from cutter bits and bucket, changed the rippers, and changed the new teeth holder. The machinery move forward for another 1200m, it turn out 90% of the cutting teeth in good conditions.


Subway Project


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