Reverse Circulation Drilling Tools:
DTH (Down-The-Hole) Percussive Drilling can be supplied by "Zuanshan" where seabed strata is sufficiently strong that standard rotary drilling becomes sub-economic due to slow production rates.
"Zuanshan" is making Reverse Circulation Hammers (RC Hammers) for deep exploration drilling and stope ore grade control.
DTH hammer bits are used with standard reverse circulation drill strings deployed on standard pile top drilling units.
RC DTH Drill Bits/RC Drill Bit/RC Bits/RC DTH Bit, RC Hammer, RC DTH Hammer, RC Drill Pipe.
RC drilling hammer Size: 4, 5, 6 inch
RC drilling hole Diameter: 114-190mm
Shank: HRC range
RC Hammer backhead thread available:
1). Remet series: 3 1/2 Remet; 4 Remet; 4 1/2 Remet;
2). Metzke series: 3 1/2 Metzke; 4 Metzke; 4 1/2 Metzke.
Other thread and sizes can be upon to customer's requirements.
