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Contact SupplierOur Boring Machine (EBZ240) has economic cutting hardness ≤ 85 MPa and the maximum cutting hardness ≤ 100 MPa (in joint development of sedimentary rock layers). Boring Machine that NHI China offer is accurately configured and appreciated for its reliable performance. Boring Machine features a design with sandvik760S grade carbide cutter hard rock. It easily adapts to the semi-rock and all rock tunnel boring. Boring Machine is known for its function of constant power, pressure cut off and load-sensitive control.