Slurry pressure balance (SPB) tunnel boring machine XDN500

High reliability:Hydraulic overload protection system is reliable and safer,and the water proof is good. Great geology adaptability:Revolution can be adjusted without grade and different cutting wheels are designed for different ground conditions.So it makes great adaptability. High rock breaking efficiency:The special design of large eccentric cone crusher can raise the working efficiency with secondary crushing which also makes rock pieces easier to discharge. Good construction operability:Jacking speed and slurry flow can be continuously adjusted that makes it easier to achieve a balance of jacking speed and delivery of slurry flow.