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 drif_ter (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.
