Failure 1: Rock drilling speed is reduced (1) Reasons for the failure of the rock drill: first, the working air pressure is low; second, the air leg is not flexible enough, the thrust is insufficient

(1) Before ventilating the air leg rock drill, the handle of the pressure regulating valve should be moved to the "O" position to prevent the air leg from elongating suddenly during the ventilation an

Matters needing attention in the maintenance and maintenance of air leg rock drills (1) Before using the new machine of the air leg rock drill, it is necessary to disassemble and clean the internal p

Gasoline rock drills only need to move the handle as required to complete drilling or crushing operations. Gasoline rock drills are easy to operate, more time-saving and labor-saving, and feature fast

Water well drilling rig is an indispensable tool for well washing and drilling, and this large device is a heavy equipment necessary for drilling operations.

Roof bolter is mainly used in coal mines with rock hardness ≤ f10 for coal mines, rock lanes, anchors, and anchors for supporting and drilling, and can mix and install resin anchors and anchors. For a