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QL120 Quantum Leap Hammer

 

QL120

Atlas Copco Rock Drilling Tools -
Secoroc Down the Hole Equipment

Strong Performance and Affordability

 

Our Quantum Leap product line is available for those seeking a good balance between strong performance and cost. This product line was the drilling industry's first hybrid combination of valve and valveless air cycle down-hole drills. Setting many industry benchmarks, the Quantum Leap line continues to offer good value.

 


QL120 General Specifications:

 

AWDS logo
Standard
Slim
English
Metric
English
Metric
Standard drill pipe connection (see options)
6-5/8 API reg pin
6-5/8 API reg pin
Outside diameter (inch & mm)
11.2
285
10.75
273
Length w/o bit shoulder to shoulder (inch & mm)
72.3
1,837
72.3
1,837
Length with bit extended (inch & mm)
82.0
2,083
82.0
2,083
Length with bit retracted (inch & mm)
80.0
2,032
80.0
2,032
Weight w/o bit (lb & kg)
1,430
650
1,257
571
Backhead across flats (inch)
4 x 1 AF
4 x 1 AF
Minimum bit size (inch & mm)
12.25
311
12.25
311
Maximum bit size (inch & mm)
22.0
559
22.0
559
Bore (inch & mm)
9.25
235
9.25
235
Piston weight (lb & kg)
350
159
350
159
Stroke (inch & mm)
5.0
127
5.0
127
Maximum pressure differential (psig & bar)
250
17
250
17
Maximum choke diameter (inch & mm)
0.75
19.0
0.75
19.0
Make-up torque (ft-lb. & N-m)
12,000
16,248
12,000
16,248
Shank style
QL120
QL120

 

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Air Consumption:

 

 
Standard
100 psi/6,9 bar (scfm & l/s)
804
379
blows per minute
585
150 psi/10,3 bar (scfm & l/s)
1,248
589
blows per minute
695
200 psi/13,8 bar (scfm & l/s)
1,680
792
blows per minute
805
250 psi/17,2 bar (scfm & l/s)
2,100
990
blows per minute
915
300 psi/20,7 bar (scfm & l/s)
2,508
1,183
blows per minute
1,025
350 psi/24,1 bar (scfm & l/s)
2,904
1,370
blows per minute
1,135
Above specifications/ratings are based on initial factory setting.