1.Excellent hole straightness and high penetration rate. Stable drilling performance in gravel, sand and pebble strata, with lower drilling torque. Small drilling rigs are also capable of drilling large-diameter boreholes.
2.Simple unlocking and relocking operation. No eccentric moving parts inside the borehole, greatly reducing the risk of jamming during follow-up drilling.
3.Supports multi-angle drilling including vertical, inclined and horizontal holes, widely used for anchor holes, solar pile foundation and water well construction.
4.Optimized airflow channel brings efficient cuttings discharge. The air flows upward along the casing, minimizing abrasion and damage to borehole wall.
5.Easy operation, safe and reliable system. Less downtime and fewer wearing parts, effectively lowering overall drilling operation costs.
|
Model
|
Casing Tube O.D(mm)
|
Max.O.D. of Guide Device
|
Casing Shoe I.D.
|
Max.Reaming O.D.
|
Hammer Style
|
|
146
|
Φ146
|
Φ123.5
|
Φ116
|
Φ156
|
4inch
|
|
168
|
Φ168
|
Φ146
|
Φ140
|
Φ184
|
5inch
|
|
178
|
Φ178
|
Φ156
|
Φ150
|
Φ194
|
5inch
|
|
183
|
Φ183
|
Φ160
|
Φ152
|
Φ198
|
5inch
|
|
194
|
Φ194
|
Φ178
|
Φ164
|
Φ208
|
6inch
|
|
219
|
Φ219
|
Φ203
|
Φ192
|
Φ234
|
6-7inch
|
|
245
|
Φ245
|
Φ220
|
Φ205
|
Φ260
|
6-8inch
|
|
273
|
Φ273
|
Φ256
|
Φ233
|
Φ291
|
8inch
|
|
325
|
Φ325
|
Φ297
|
Φ282
|
Φ304
|
8-10inch
|
|
377
|
Φ377
|
Φ351
|
Φ332
|
Φ405
|
10-12inch
|
