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YD Rock Tunnel microtunnel boring Machine

Features of YD series of rock tunnel machine:
1) Cutter disc is driven by gear block without central shaft support
2) Access to the cutter disc is possible for worker to perform maintenance or change cutter bits.
3) Rocks can be crushed or broken for second time by cone breaking mechanism
4) Large cutting torque and breaking force can run against rock strata up to 50MPa


YD rock tunnel machine is newly developed pipe jacking product which is very different from slurry and EPB types in design and configuration.
YD tunnel machine is made into mixshield and can be used for all soil conditions such as sand soil, gravel etc.


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