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HPR35 Mini rotary drilling rig offers low clearance and lightweight construction as its core advantages, making it ideal for confined working environments and complex site access requirements.
HPR45 mini rotary drilling rig has a maximum drilling depth of 16 metres, with a drilling diameter range of 325 to 1000 millimetres. The machine weighs 12,000 kilograms.
The HM-14 full-hydraulic multifunctional ground improvement equipment is designed for small-section tunnels and coal mine roadways.
The single roler bit is composed of a single cone and a lug matched by a bearing.According to different strata and construction requirements, different cutting struclures can be selected; wear resistant carbide are welded and cemented carbide inserts are inserted on the back of the lug. La foreuse rotative entraîne l'arbre en rotation et exerce une pression positive afin que le trépan rotatif puisse percuter, rouler et cisailler la roche. Le pilier central est ensuite brisé par l'oscillation de l'arbre et le pilier brisé est extrait pour former un trou.

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