Promising pneumatic punchers for borehole drilling

Journal Article · Tue Mar 15 00:00:00 EST 2005 · Journal of Mining Science (English Translation)

DOI:https://doi.org/10.1007/s10913-005-0078-0· OSTI ID:20712152

Lipin, A A ^[1]

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1. Russian Academy of Sciences, Novosibirsk (Russian Federation). Institute of Mining, Siberian Branch

The state of borehole drilling by downhole pneumatic punchers and their potential use in open and underground mining as well as in exploration for reliable sampling are analyzed. Performance specification is presented for the new-generation pneumatic punchers equipped with a pin tool, effectively operating at a compressed-air pressure of 0.5-0.7 MPa, and with an additional extended exhaust from the power stroke chamber during working cycle.

• OSTI ID: 20712152
• Journal Information: Journal of Mining Science (English Translation), Vol. 41, Issue 2; ISSN 1062-7391
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
WELL DRILLING
PNEUMATICS
UNDERGROUND MINING
SURFACE MINING
COMPRESSED AIR