5 Inch Reverse Circulation RC Hammer , Geological Exploration Dth Drilling System

RC hammer:the exhaust air,and cuttings are discharge through the center return hole of the RC hammer,and the exhaust air is not discharged into the ground,It creates excellent up-hole velocity,which ensure cuttings are quickly removed from the bit face providing an extremely clean hole and excellent life time on the bit.

1.Main specifications:

TH1162RC--- RE543

TH1214RC--- RE040

TH1261RC--- RE052

TH1305RC--- RE054

TH1307RC--- RE140

2. Application range: Geological exploration, ore mining.

3.Design Principles: To arrive at target depth exactly and improve the productive efficiency with low cost, durable using.

4.Outstanding advantages: High impact frequency, fast penetration rate, low air consumption, high crush function, low cost,precise rock sample.

5.Main specifications and parameters:
Hammer Bit range.mm Cylinder O.D Working pressure
TH1162 121-133 116mm 250-500
TH1214 127-137 121mm 250-500
TH1261 133-143 126mm 250-500
TH1305 137-146 130mm 250-500
TH1307 137-146 130mm 250-500

Bit Face Shape Selection:

1. Drop Center Bit

For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.

2. Concave Face

The all-around application bit face specifically for medium hard and homogeneous rock formations.

Good hole deviation control and good flushing capacity.

3. Convex Face

For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce theload and wear on the gauge buttons, but poor hole deviation control.

4. Flat Face Bit

This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

Carbide Button Shape Selection:

1. Semi-Ballistic Buttons

2. Ballistic Button

3. Spherical Button

4. Two-step Button

Our Advantages:

We have advanced production equipment & talented researchers & technicians & rich experiences in R & D and production.
We using the best quality raw materials.
We adopting advanced production technology & strict testing procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.

Steel:

first class special alloy steel with high strength, heat resistance and wearable

Carbide
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.

1.Steel Carbide
2.12 years experience
3.Can match to the original bit shank
4.Atlas quality