Hydraulic drilling machine is used for marble mine intersection hole drilling equipment. The large aperture drill used in marble mines with diamond wire saw in the early days is usually the hydraulic drill used for the diamond wire saw. This kind of hydraulic drill adopts the core destruction drill bit, uses the motor to drive the drill pipe rotation, hydraulic cylinder to promote the drill pipe feed mode.
Hydraulic drilling machine can drill horizontal and vertical holes, its common boreholes are 90mm ~ 140mm in diameter, with a maximum bore diameter of 550mm and the drilling depths of 20m~40m.
Hydraulic drilling machine has the characteristics of good straightness of drilling, high precision, low noise when drilling, no dust pollution, drilling large diameter drilling and so on; But its weight is relatively large, compared with the large aperture pneumatic or hydraulic drill, its drilling speed is slow, in the marble ore body drilling 90mm diameter hole drilling speed is about 1~1.5m/h, if the drilling diameter is 120~150mm, its drilling speed is less than 1m/h.
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