DL4 production drilling rig is developed for long hole mining.It can drill holes with diameter from 64mm to 89mm and maximum 41m deep.The suitable cross-sections (width x height) is from minimum 3.8m x3.8m to maximum 5.3mx5.3m.

• Rock Drill

With high pressure and low flow hydraulic system.The rock drill delivers high penetration rates in hard rock (<F17)and low drilling steel consumption.With the classic double damping design the service life is long and the cost is low.22kw rock drill is standard,and higher
power 25kw rock drill is optional.

• Advanced Control System

Drill rod angle indicator on the operating panel shows small deviation of the rod positioning.It guarantees the long hole drilling quality.The automatic rod anti-jamming and return system can protect rock drill and drill tools.

• Rod Handling System

Rod handling ystem can extend and remove the rods automatically.The rods handler capacity is 21+1 pcs.The rod handling system relieves operators from heavy lifting work and is therefor an essential feature for maintaining  high productivity.

• Flexible Boom Design

The positioning unit of the boom can do 360°ring drilling and parallel drilling within the width of 3m.