SRC054 Down The Hole Hammer Blasting And Sampling Drilling Tools

Blasting And Sampling Drilling Tools SRC054 Reverse Circulation Hammer

Basics of Reverse Circulation Drilling:
(1) RC drilling uses rods with inner and outer tubes, the drill cuttings are returned to surface inside the rods. The drilling mechanism is a pneumatic reciprocating piston known as a hammer driving a tungsten-steel drill bit.
(2) RC drilling utilizes much larger rigs and machinery and depths of up to 500 meters are routinely achieved. RC drilling ideally produces dry rock chips, as large air compressors dry the rock out ahead of the advancing drill bit.
(3) RC drilling is slower and costlier but achieves better penetration than RAB or air core drilling; it is cheaper than diamond coring and is thus preferred for most mineral exploration work.
(4) 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.
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.
 

Items Description:

SRC040 hammer technical data:

Shank can be available:

Our Service:

1.Pre-sale service:
Act as a good adviser and assistant of clients enable them to get rich and generous returns on their investments .
(1)Select equipment model.
(2)Design and manufacture products according to customer‘s needs;

(3)Train technical personnel for clients .

2.Services during the sale:
(1)Pre-check and accept products ahead of delivery .

(2)Help clients to draft solving plans .

3.After-sale services:

Provide considerate services to minimize clients' worries.

(1)Complete After-sales service,professional engineers available to service machinery at home or oversea.

(2)24 hours technical support by e-mail.

(3)Other essential technical services.

Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.

Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests.

Production time:
Generally need 15-25 days

Transportation:
By air, By Express or By sea according to your requests.