Why are pneumatic drilling rigs the most efficient?

Why are pneumatic drilling rigs the most efficient?

The biggest difference between pneumatic drilling rigs and ordinary drilling rigs is the drilling method.

Ordinary drilling rigs usually use rotary drilling, that is, relying on the rotation of the power head to drive the drill pipe and drill bit, which is a form of grinding, while pneumatic drilling rigs are generally equipped with air compressors, down-the-hole drill bits and impactors.

The impactor is independent and dives into the bottom of the hole. No matter how deep the hole is, the drill bit is directly installed on the impactor without passing the punching skills through the drill pipe, thus reducing the loss of punching skills.