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Air leg rock drill is a kind of high efficiency drilling machinery. It is widely used in rock tunneling and various drilling operations to drill blasting holes, is an important tool in stone works suc

The drill bit plays an important role in the drilling process of the water well drilling rig, the quality of a drill bit directly affects the drilling efficiency and hole quality of the well, so we ne

Air leg rock drill is one of the modern rock drill tools, it is easy to operate. The silencer attached to the gas leg drill can change the exhaust direction at will, reduce the noise and improve the w

1. Main reasons for lower drilling speed of air leg rock drill: The main reasons for the reduction of drilling speed are low pressure in the working environment, poor lubrication of the machine, insu

Pneumatic roof bolter machine is the bolt support equipment for roadway used in coal mine. It has outstanding advantages in improving support effect, reducing cost, accelerating roadway formation spee

A screw air compressor is a device used to compress gas. Screw compressor - is a rotary positive displacement compressor, in which the two rotors with spiral gear mesh with each other, so that the vol