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HPR35A 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.
Engineered for foundation construction, the HPR38-20 is a compact, high-performance mini drilling rig built to excel in confined, low-clearance environments—from under bridges and power lines to indoor construction sites, with zero access barriers.
HPR45-16 mini rotary drilling rig has a maximum drilling depth of 16 metres, with a drilling diameter range of 300 to 1000 millimetres. The machine weighs 12,000 kilograms.
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. L'impianto di perforazione rotante fa ruotare l'albero ed esercita una pressione positiva in modo che la punta rotante possa colpire, rotolare e tagliare la roccia. La roccia viene frantumata per formare una zona ad anello di frantumazione, quindi il pilastro centrale viene rotto dall'oscillazione dell'albero e il pilastro rotto viene estratto per formare un foro.

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