8 Year Exporter Extension Rod - R.C DTH Hammer – Kat

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I .Introduction ofR.C. Drilling R.C. drilling, referred to as “Centre Sample Recovery”or “Dual Wall Drilling”, employs a Dual Wall Pipe where the drilling medium, normally high pressure air, is passed between the outer and inner tubes down to the face o# the drilling bit where it is returned up the centre tube along with the sample cut by the drill bit. Ⅱ . The use and the advantages of the R.C. DTH Hammer: 1)No Contamination The R.C. System collects sample through the...


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We normally think and practice corresponding towards the change of circumstance, and grow up. We aim at the achievement of a richer mind and body plus the living for Hex H28, Ql60 Dth Hammer, Shank Adapter For Rock Drill, We are not satisfied with the present achievements but we are trying best to innovate to meet buyer's more personalized needs. No matter where you are from, we are here to wait for your kind request, and welcom to visit our factory. Choose us, you can meet your reliable supplier.
8 Year Exporter Extension Rod - R.C DTH Hammer – Kat Detail:

I .Introduction ofR.C. Drilling

R.C. drilling, referred to as “Centre Sample Recovery”or “Dual Wall Drilling”, employs a Dual Wall Pipe where the drilling medium, normally high pressure air, is passed between the outer and inner tubes down to the face o# the drilling bit where it is returned up the centre tube along with the sample cut by the drill bit.

Ⅱ . The use and the advantages of the R.C. DTH Hammer:

1)No Contamination

The R.C. System collects sample through the recovery holes in the face of the drill bit immediately as the cuttings or sample is formed. The drilled sample does not have to travel the length of the hammer where contamination and loss ofsample takes place.

2) Higher Production

In broken and fractured ground conditions, the R.C. will often out perform the conventional hammer in terms ofpenetratiion rates.

3) Dry Sample

Even in certain water bearing stratas it is still possible to collect a dry sample because the cuttings (sample) are collected as they are formed through the face of the drill bit.

4) Higher Sample Recovery

Because the sample is collected through the face of the drill bit there is no loss of sample when drilling through broken or fractured ground. And since the bit matched to the chuck size, there is very little bypass of sample and recovery rates o, up to 98% are generally achievable.


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8 Year Exporter Extension Rod - R.C DTH Hammer – Kat detail pictures

8 Year Exporter Extension Rod - R.C DTH Hammer – Kat detail pictures


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  • Reasonable price, good attitude of consultation, finally we achieve a win-win situation,a happy cooperation!
    5 Stars By Jamie from Lebanon - 2015.09.16 11:31
    This is a very professional and honest Chinese supplier, from now on we fell in love with the Chinese manufacturing.
    5 Stars By Jill from Haiti - 2015.05.22 12:13

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