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QL50/55 Quantum Leap Hammer

 

QL50-55

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.

 

 

 

QL50/55 General Specifications:

 

AWDS logo
Standard
Quarry
English
Metric
English
Metric
Standard drill pipe connection (see options)
3-1/2 API reg pin
3-1/2 API reg pin
Outside diameter (inch & mm)
4.6
117
4.9
124
Length w/o bit shoulder to shoulder (inch & mm)
42.0
1,067
42.0
1,067
Length with bit extended (inch & mm)
46.3
1,176
46.3
1,176
Length with bit retracted (inch & mm)
45.3
1,149
45.3
1,149
Weight w/o bit (lb & kg)
132
60
162
74
Backhead across flats (inch)
2 x 3-1/2 AF
2 x 3-1/2 AF
Minimum bit size (inch & mm)
5.1
130
5.5
140
Maximum bit size (inch & mm)
6.0
152
6.0
152
Bore (inch & mm)
3.7
95
3.7
95
Piston weight (lb & kg)
31
14
31
14
Stroke (inch & mm)
3.75
95
3.75
95
Maximum pressure differential (psig & bar)
350
25
350
25
Maximum choke diameter (inch & mm)
0.38
9.6
0.38
9.6
Make-up torque (ft-lb. & N-m)
5,000
6,770
5,000
6,770
Shank style
QL50
QL50

 

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Air Consumption:

 

 
QL50/55
100 psi/6,9 bar (scfm & l/s)
202
95
blows per minute
1,116
150 psi/10,3 bar (scfm & l/s)
310
146
blows per minute
1,266
200 psi/13,8 bar (scfm & l/s)
422
199
blows per minute
1,401
250 psi/17,2 bar (scfm & l/s)
538
254
blows per minute
1,521
300 psi/20,7 bar (scfm & l/s)
658
310
blows per minute
1,626
350 psi/24,1 bar (scfm & l/s)
783
369
blows per minute
1,716
400 psi/27,6 bar (scfm & l/s)
911
430
blows per minute
1,791
435 psi/30,0 bar (scfm & l/s)
1,004
474
blows per minute
1,835
Above specifications/ratings are based on initial factory setting.