QL40/45 Quantum Leap Hammer

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.

QL40/45 General Specifications:

	Standard		Quarry
	English	Metric	English	Metric
Standard drill pipe connection (see options)	2-3/8 API reg pin		2-3/8 API reg pin
Outside diameter (inch & mm)	3.7	94	3.9	98
Length w/o bit shoulder to shoulder (inch & mm)	37.3	947	37.3	947
Length with bit extended (inch & mm)	41.8	1,061	41.8	1,061
Length with bit retracted (inch & mm)	40.4	1,026	40.4	1,026
Weight w/o bit (lb & kg)	71	32	81	37
Backhead across flats (inch)	1-3/4 x 2-1/2 AF		1-3/4 x 2-1/2 AF
Minimum bit size (inch & mm)	4.1	105	4.25	110
Maximum bit size (inch & mm)	5.0	127	5.0	127
Bore (inch & mm)	3.0	76	3.0	76
Piston weight (lb & kg)	17	8	17	8
Stroke (inch & mm)	4.0	102	4.0	102
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)	4,000	5,416	4,000	5,416
Shank style	QL40		QL40

 

Air Consumption:

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