Hydraulic water well truck rock drill impact reciprocating piston in the high-frequency, high-speed conditions, the seal is not good, not only will cause a sharp drop in impact energy, will lead

manufacturing quality is difficult to guarantee: high-frequency impact of hydraulic rock drill is achieved through the internal oil distribution valve to change into the oil before and after the

manufacturing quality is difficult to guarantee: high-frequency impact of hydraulic rock drill is achieved through the internal oil distribution valve to change into the oil before and after the

The by underground industrial test, Reference YYG50 hydraulic rock drill design is reasonable, compared with the existingdomestic boring machine, its small size, moderate weight and other characterist

The lightweight hydraulic drilling rigs rock drill, rock drill rig machines are widely used construction machinery for mining, construction, engineering, construction and other fields. Although the

In fact, not only is required for different rock drill three screw tightening torque, even if it is the same rock drill three long screw tightening torque required will also vary with the time ch

the sealing effect with the size of the gap, pressure difference between the mating surfaces of the length, diameter, size and boring machine processing quality factors, in order to achieve the d

the sealing effect with the size of the gap, pressure difference between the mating surfaces of the length, diameter, size and boring machine processing quality factors, in order to achieve the d

crawler drilling rig Good reliability, easy operation, easy maintenance. Skills. 1, pneumatic rock drill use require drilling machine inlet of dry compressed air, drilling rig clean water softener is