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Product Description
SC50N-QL DTH hammer is a kind of DTH hammer with the tubeless (no footvalve) drill bits. It achieved high penetration during drilling due to the optimized components. It is proven by testing and using in many job sites for varies rock conditions. It is used for varies applications, including mining, exploration, water well, geothermal, construction drilling and civil engineering, especially for mining.
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 | SC50N-QL |
Bit shank | QL50 no footvalve |
Top sub thread | API 2 3/8" REG / API 3 1/2" REG |
Length (less bit) | 1090mm (42.91 in) |
External diameter | 125mm (4.93 in) |
Weight (less bit) | 67kg (148lbs) |
Impact rate at 17 bar | 29HZ |
Hole range | 135mm-152mm (5.3 in -6 in) |
Working pressure | 10-25 bar (145 - 363 PSI) |
Speed recommended | 30-60 rpm |
Pull force recommended | 9 KN |
Dia | Button configuration | Bit design | Weight | Part number | ||
Metric | Inch | Gauge button | Front button | |||
140mm | 5 1/2" | Ф18mm*7 | Ф14mm*3,Ф15mm*4 | Convex face | 15.1 | SC50N-QL-140CV |
140mm | 5 1/2" | Ф16mm*8 | Ф14mm*8 | Flat face | 15.3 | SC50N-QL-140FF |
146mm | 5 3/4" | Ф18mm*8 | Ф15mm*8 | Flat face | 15.9 | SC50N-QL-146FF |
146mm | 5 3/4" | Ф18mm*8 | Ф15mm*4,Ф14mm*3 | Concave face | 15.8 | SC50N-QL-146CC |
152mm | 6" | Ф18mm*8 | Ф15mm*8 | Flat face | 16.4 | SC50N-QL-152FF |
152mm | 6" | Ф18mm*8 | Ф16mm*4,Ф14mm*4 | Concave face | 16.2 | SC50N-QL-152CC |
