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Product Description
SC120-SD DTH hammers are improved in many projects and widely used for varies applications, including overburden casing drilling and water well drilling.
1、Valveless air distribution ensures smooth working.
2、 Piston design and harden wear part ensure strong wear-resistance
3、 Minimize the energy loss, high penetration, lower air and oil consumption.
4、 Fewer internal parts minimize the maintain and replace the part requirements.
Model | SC120-SD |
Bit shank | SD12 |
Top sub thread | API 6 5/8" REG |
Length (less bit) | 1680mm (66.1 in) |
External diameter | 275mm (10.8 in) |
Weight (less bit) | 526kg (1161lbs) |
Impact rate at 17 bar | 18HZ |
Hole range | 305mm-445mm (12 in -17.5 in) |
Working pressure | 10-25 bar (145 - 363 PSI) |
Speed recommended | 15-35 rpm |
Pull force recommended | 28 KN |
Dia | Button configuration | Bit design | Weight | Part number | ||
Metric | Inch | Guage button | Front button | |||
305mm | 12" | Ф18mm*27 | Ф18mm*15, Ф16mm*11 | Concave face | 182 | SC120-SD-305CC |
315mm | 12 3/8" | Ф18mm*27 | Ф18mm*15, Ф16mm*12 | Concave face | 206 | SC120-SD-315CC |
325mm | 12 3/4" | Ф18mm*27 | Ф18mm*15, Ф16mm*15 | Concave face | 209 | SC120-SD-325CC |
350mm | 13 3/4" | Ф18mm*27 | Ф18mm*24, Ф16mm*12 | Concave face | 228 | SC120-SD-350CC |
