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Double Casing Drilling Tool 
Color: Orange, Red, Black, Yellow, Gold
Brand: SANSUNG
Origine: China
Diameter: 118-216mm
Insert Button Shape: spherical, ballistic
Bit Faces: flat face, concave, convex
Packaging: Ply-wood box
Delivery Time: 20-30days
Sample Order: Yes
OEM Service: Yes
Model: R56,R78,R83,R102
Details

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.
 (mm)

Reamed Dia
 (mm)

Inner Dia
 (mm)

Thread Size
 (mm)

Drill Rod Dia
 (mm)

Drill Bit Dia
 (mm)

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)

Top Hammer double casing system.jpg


Double Casing Drilling Tools (For DTH HAMMER )

DTH double casing system.jpg