What is a crawler down-the-hole drill machine?

The crawler down-the-hole drill machine is currently a large-scale rock drilling equipment in general use. The down-the-hole drill rigs are actually rotary percussion drill equipment. The impactor is directly submerged into the bottom of the hole to drill the rock.

Can Comacchio Geo rigs be used for rotary drilling?

Comacchio GEO line rigs can adapt to virtually any rotary drilling application, as well as rotary percussion drilling techniques, in all geological formations. Moreover, our GEO rigs can be configured for Sonic drilling for ground investigations in challenging ground conditions. Typically, our geotechnical site investigation equipment is used to:

Do you need a crawler for a drilling rig?

You will need to choose a crawler if it needs to move at a low speed over unlevel areas or on very loose ground. The stability of the drilling rig depends on the surface area of the tracks. As such, the wider the tracks, the more stable the drilling rig will be.

What is a down-the-hole drill rig?

The rock drilling principle of a down-the-hole drill machine is the same as a heavy-duty rock drill rig. The difference is that the impact mechanism of the down-the-hole drill – is a down-the-hole impactor. It is installed at the front end of the drill rod, and at the bottom of the manhole.

Who makes the best DTH drilling rigs?

As one of the most professional DTH drilling rig manufacturers. YG Machinery has developed and produced a series of down-the-hole drilling rigs of different models. And almost all have become hot-selling models. In addition, our down-the-hole drilling rigs are sold to many countries and regions in the world.

What is a rotary drill rig used for?

The larger units in the range can also be used to perform rotary drilling (with either direct or reverse mud circulation) and DTH drilling for water well construction projects and ground source heat pump systems (geothermal drilling).