Drilling Mining Blasting Ql30 Ql40 Ql50 Ql60 Ql80 Dth Hammers

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Smaller blast holes are generally drilled using tophammer, and larger holes generally use rotary machines.In other applications, like foundation drilling, dth hammers can be used with single bit in hole sizes up to 750 mm 30.With multiple hammer units cd cluster drills drill holes up to 70 or 1778 mm.

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