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DHD12 Classic Hammer

 

DHD12

Atlas Copco Rock Drilling Tools -
Secoroc Down the Hole Equipment

Time-Tested Design

 

Our DHD Classic product line is available for drilling contractors, owner-operators, and large corporations who are specifically looking for the lowest priced drill. This time-tested design is practically bullet proof -- it has been in continuous, successful use in the industry for over 30 years.

 


DHD12 General Specifications:

 

AWDS logo
Standard
Deep Hole
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)
10.88
276
10.88
276
Length w/o bit shoulder to shoulder (inch & mm)
71.3
1,811
71.3
1,811
Length with bit extended (inch & mm)
80.6
2,047
80.6
2,047
Length with bit retracted (inch & mm)
78.6
1,996
78.6
1,996
Weight w/o bit (lb & kg)
1,318
599
1,286
585
Backhead across flats (inch)
4 x 1-5/16 AF
4 x 1-5/16 AF
Minimum bit size (inch & mm)
11.9
302
11.9
302
Maximum bit size (inch & mm)
18.5
470
18.5
470
Bore (inch & mm)
8.5
216
8.5
216
Piston weight (lb & kg)
250
114
250
114
Stroke (inch & mm)
4.0
102
4.0
102
Maximum pressure differential (psig & bar)
250
17
250
17
Maximum choke diameter (inch & mm)
0.88
22.3
0.88
22.3
Make-up torque (ft-lb. & N-m)
12,000
16,248
12,000
16,248
Shank style
DHD112
DHD112

 

Request info

 

AWDS logo
"Slim"
English
Metric
Standard drill pipe connection (see options)
4-1/2 API reg pin
Outside diameter (inch & mm)
10.0
254
Length w/o bit shoulder to shoulder (inch & mm)
71.3
1,811
Length with bit extended (inch & mm)
80.6
2,047
Length with bit retracted (inch & mm)
78.6
1,996
Weight w/o bit (lb & kg)
562
1,237
Backhead across flats (inch)
4 x 1-5/16 AF
Minimum bit size (inch & mm)
11.0
279
Maximum bit size (inch & mm)
18.5
470
Bore (inch & mm)
8.5
216
Piston weight (lb & kg)
250
114
Stroke (inch & mm)
4.5
114
Maximum pressure differential (psig & bar)
250
17
Maximum choke diameter (inch & mm)
0.88
22.3
Make-up torque (ft-lb. & N-m)
12,000
16,248
Shank style
DHD112

 

Air Consumption:

 

 
Standard
"Slim" & Deep Hole
100 psi/6,9 bar (scfm & l/s)
570
269
738
348
blows per minute
915
915
150 psi/10,3 bar (scfm & l/s)
1,029
485
1,288
608
blows per minute
1,068
1,068
200 psi/13,8 bar (scfm & l/s)
1,529
721
1,813
855
blows per minute
1,220
1,220
250 psi/17,2 bar (scfm & l/s)
2,070
976
2,313
1,091
blows per minute
1,373
1,373
300 psi/20,7 bar (scfm & l/s)
2,651
1,250
2,788
1,315
blows per minute
1,525
1,525
350 psi/24,1 bar (scfm & l/s)
3,272
1,543
3,238
1,527
blows per minute
1,678
1,678
Above specifications/ratings are based on initial factory setting.