Based on our previous product KG925 borehole drilling machine, we developed this KGH4 medium pressure eco-friendly crawler drilling rig. The new product comes with a dry type dust collector, and the drill bit diameter ranges from 80mm to 115mm. This crawler drill rig can drill blastholes (such as pre-splitting blasting hole) and anchor cable holes in horizontal, vertical and inclined directions. The attractive features of this blasthole driller like stable performance, wide application, high cost-effectiveness, makes our KGH4 medium pressure eco-friendly crawler drilling rig an ideal choice for medium and small mines.