Reverse Circulation Drilling Hammer Bit

Short Description:

Reverse circulation is achieved by blowing air down the annulus of the rod, the differential pressure creating air lift of the water and cuttings up the inner tube which is inside each rod. It reaches the deflector box at the top of the drill string then moves through a sample hose which is attached to the top of the cyclone.

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RC hammers and bits are used in hole drilling in mines, hydrology and water well, geothermal well, geothermal air conditioning well, geologic exploration, gravel stratum, etc Especial suitable for complicated formation (Formation loose, difficult to drilling and unstable of hole wall), exhausting for deep hole, environment protection.

The drill cuttings travel around the inside of the cyclone until they fall through an opening at the bottom and are collected in a sample bag. For any drill hole there will be a large number of sample bags, each one marked to record the location and drilling depth that the sample was obtained.

The collected series of sample bag cuttings are later taken for analysis to determine the mineral composition of the drill hole. The analysis results of each individual bag represents the mineral composition at a particular sample point in the drill hole. Geologists can then survey the drilled ground analysis and make decisions about the value of the overall mineral deposit.

TDS RC hammer Model
Hammer Model	Hole Range (mm)	External Diameter (mm)	Weight(without bit) mm	Bit shank	Working Pressure	Connection Thread
RC4108	115-130	108	78	RE410	1.5-3.0 Mpa	REMET 3.1/2"-4" METZKE 3.1/2"
RC5116	120-135	116	85	RE543	1.5-3.0 Mpa	REMET4" METZKE 4"
RC5121	136-133	121	73	RE512	1.5-3.0 Mpa	REMET 4"-4.1/2" METZKE4"-4.1"
RC5126	140-152	126	95	RE5126	1.5-3.0 Mpa	REMET 4.1/2" METZKE 4.1"
RC5130	140-146	130	82	RE513	1.5-3.0 Mpa	REMET 4.1/2" METZKE 4.1"