| Certification: | ISO 9001:2000 |
|---|---|
| Standard: | GB, GOST |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | Casting |
| Material: | Alloy Steel |
| Reamed Diameter: | 125-225mm |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier
We are a leading manufacturer of rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, top hammer button bits, coupling, cross bits, drill rods located in Xiamen, Fujian, China.
DTH and Top Hammer type Double casing drilling tools
Applicationrange
Suitable for geothermal drill for grouting, sampling, water well drill, foundation drill etc.
Workingprinciples
Double head rotary percussive casing system utilizes a rotary head to drive the outer casing equipped with a tungsten carbide crown and a hydraulic drifter (top hammer) to drive the inner drill string equipped with a percussive drill bit. This is an excellent method for drilling straight holes in varying ground conditions. The water and compressed air can be both provided as power.
|
Outer Dia. |
Reamed Dia |
Inner Dia |
Thread Size |
Drill Rod Dia |
Drill Bit Dia |
Thread |
|
118 |
125 |
88 |
104.5 |
76 |
83 |
R56 |
|
133 |
140 |
108 |
122 |
76 |
102 |
R56 |
|
146 |
152 |
120 |
134 |
89 |
116 |
R78 |
|
168 |
172 |
133 |
146.5 |
114 |
128 |
R83 |
|
216 |
225 |
178 |
203 |
114 |
165 |
R102 |
Quality warranty
Our products are made of high quality steel and all spares parts are inspected strictly before shipping.
Production time
within 15-25 days after receiving the advance payment or full payment
Transportation
according to your requests.
Package
The material of packing is ply-wooden cases and pallet to avoid the damage in transportation.
Double Casing Drilling Tools (For TOP HAMMER)
Double Casing Drilling Tools (For DTH HAMMER )
Suppliers with verified business licenses
Audited Supplier 
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