RC45 50 Reverse Circulation DTH Hammer Drill Bit And Shroud 

ABOUT US
Changsha Chaojingang (CJG)  Machinery Manufacturing Co., Ltd (Super Diamond) is one of the best manufacturers in China's drilling tool industry. Our company has many senior mechanical design engineers with more than 20 years of design experience in the drilling tool, the production process and technology are at the first-class level in China. Our drill tools adapt the top-quality raw materials, equipped with a complete production chain, and with excellent performance during service life. The design of our hammer and bit is simple and reasonable, with the characteristics of high flat degrees, smooth holes, high rigidity, fast punch speed, low failure rate, stable drilling, high penetration rate. The drilling depth exceeded customer expectations and was well received by customers.

2. High q uality r aw m aterials .
  Our company has reached strategic cooperation with China's No.1 cemented carbide factory, processing the best quality raw materials into the best quality products to global users.

3.High-level production technology and strict quality management .
  Our company has the whole process of drilling tools production line,a nd established a perfect ISO9001 management system, to ensure the precision of the product.

4.Professional s ervice .
  We have professional pre-sales service, which can tailor more efficient drilling products for you according to your air compressor, drill rig and rock conditions.on the premise of ensuring quality, we can provide customers with the best price. We have standardized after-sales service.

THE USE AND THE ADVANTAGES OF THE R.C.DTH HAMMER And Bit

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 of sample takes place.
2.Higher Production
In broken and fractured ground conditions,the R.C. will  often out perform the conventional hammer in terms of penetration 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 of up to 98% are generally achievable.

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