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2021 Changsha international construction equipment exhibitionCongratulationsTop ten biggest gold mines in the worldFORE POLING System for tunnel DrillingHappy New Year-2020Happy Mid-Autumn Day!Project-Foundation 18inch DTH hammer&600mm bitTeamwhole Launches The New JS Series DTH HammerCisneros Gold Mine, AntioquiaBauma exhibition,Shanghai,2018

FORE POLING System for tunnel Drilling

Date: 2020-01-30
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FOREPOLING RING BITS AND CASINGS are designed for drilling injection casings for tunnel construction in weak ground conditions. Ring bit systems are designed for both top and DTH hammers. 

Generally, pipes with outer diameter of 76-140 mm and wall thickness of 6-10 mm are installed using standard tunneling equipment.





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