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Diameter of hole(mm): 250 Depth of hole(m): 17.5 Angle of hole(Degree): 90

KY-250D
Model-250D Rotary Drilling Machine uses the units of AC frequency-change motor driving, top swing, continuous crowd of speed-reducer-closed chain-gear and rack, high drilling structure, electric-gas-hydraulic control, slag off by gas pressing. It can drill the blast hole with dia 220-250mm and depth 17.5mm on all sorts of mine rock f greater than and equal to 5. It is suitable not only for drilling operation in all big open mine but also for that of big water and electricity engineering, road construction engineering, and military engineering and etc.

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