DHD340A, DHD350r, DHD380 Carbide Button DTH Bit Down The Hole Hammer
Description:
(1) Made from premium quality nickel-alloy steel 25SiMnCrNi2MoVA for increased durability and wear characteristics, and YK 05 tungsten carbide as same grade as internationally well-known brand
(2) Apply "hot (thermal) -insertion" processing procedure to insert the buttons as same as internationally well-known brand,
(4) Entire CNC processing procedure ensure the quality consistency and reliable.
(5) Military grade requirements of heat-treatment guarantee durability, Specific heat treatment standards and special "stress relief" processes ensure consistent performance.
(6) Designed for maximum performance and hole cleaning ability and high penetration rate.
Our bits are interchangeable with Atlas Copco's COP32 34 44 54 64 84, Ingersoll-Rand 's DHD3.5,DHD3.5HD, DHD 340A , DHD350R, DHD 360, DHD380 QL40, QL50 , QL60, QL80.NUMA100, NUMA120, MISSION60,ect.
Matching the insert to the job requirements is essential in achieving the desired results. Each of the following buttons is ideal for different ground conditions, abrasion levels, PSIs and penetration levels. In general, the larger the number of gauge buttons the better overall performance, especially in hard rock.
| Prodrill DTH Bits Training Focus |
| Hammer size |
1" bit |
2" bit |
3" bit |
4" bit |
5" bit |
6" bit |
8" bit |
10" bit |
12" bit |
15" bit |
20" bit |
24" bit |
| DTH bits Diameter range |
57 64 70 76 (3") |
80 82 90 |
92 95 100 105 110 |
105 110 115 120 125 130 |
130 135 138 140 146 150 152(6") 156 |
152 154 156 159 165 171 178 185 190 203(8") |
200 203 216 219 222 225 229(9") 235 240 254(10") 270 279(11") |
254 270 279 295 305(12") 311 315 330 (13") |
305 311 315 330 343 350 356 368 375 381 (15") |
381 391 413 435 438 445 451 457(18") 464 483(19") 508(20") |
483 508 560(22") 578 610(24") 660(26") |
610 660 724 737 ( 29") 762 (30") 864 (34 ") 914 (36") |
| Specification |
BR1 |
BR2 DHD25 |
IR3.5 COP34 BR3 QL30 COP32 M30 |
DHD340A COP44 SD4 M40 SD4 |
DHD55 DHD350R COP54 M50 SD5 QL50 |
DHD65 M60 SD6 QL60 |
DHD85, DHD380, DHD84, M80, SD80, QL80 |
SD10 NUMA100 |
DHD120 NUMA120 NUMA125 |
DHD330 |
DHD450 |
DHD525 |
| Bit Face |
Flat |
Flat |
Flat |
Flat |
Flat |
Cancave Canvex |
Cancave Canvex |
Cancave Canvex |
Cancave Canvex |
Cancave Canvex |
Cancave Canvex |
Cancave Canvex |
| Carbide button |
Dome/hemispherical, Paraboli/semi-ballistic, Ballistic |
| Gauge buttons |
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8*12, 7*11 |
8*14 |
8*16/18 |
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| Front buttons |
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7*12/13/14 |
8/10*14/15/16 |
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| Buttons Qty |
8 |
10 to 13 |
15 |
15 to 18 |
16 to 18 |
16 to 24 |
18 to 41 |
22 to 41 |
41 to 55 |
45 to 81 |
77to 93 |
75 to 132 |
| Air pressure |
0.7-1.75Mpa |
0.7-1.75Mpa |
1-1.5Mpa |
1-2.5Mpa |
1-2.5Mpa |
1-2.5Mpa |
1-2.5Mpa |
1-2.5Mpa |
1-2.5Mpa |
1-2.5Mpa |
1-2.5Mpa |
1-2.5Mpa |
| Size type |
Normal |
Normal |
Normal |
Normal |
Normal |
Normal |
Normal |
Big size |
Big size |
Big size |
Big size |
Big size |
| Skirt steel |
23CrNi3Mo, 20Cr2Ni4 |
| Production process |
Fully carburized () of special heat treament with stress relief ( ) + full CNC ()for accurate machincal processing for perfect arc of skirt body to assure same consumption of skirt body with YK05 tungsten carbide inserts, which is by cold-inserted techology , no broken and drop in time of drilling |
| R. O.P |
fast |
fast |
fast |
fast |
fast |
fast |
fast |
fast |
fast |
fast |
fast |
fast |
| Hole straightness |
Perfect |
Perfect |
Perfect |
Perfect |
Perfect |
Perfect |
Perfect |
Perfect |
Perfect |
Perfect |
Perfect |
Perfect |
| Hole clean quality |
Good |
Good |
Good |
Good |
Good |
Good |
Good |
Good |
Good |
Good |
Good |
Good |
| Productivity action |
High |
High |
High |
High |
High |
High |
High |
High |
High |
High |
High |
High |
| Drilling life |
Longer |
Longer |
Longer |
Longer |
Longer |
Longer |
Longer |
Longer |
Longer |
Longer |
Longer |
Longer |
| Interchangable |
Ok |
Ok |
Ok |
Ok |
Ok |
Ok |
Ok |
Ok |
Ok |
Ok |
Ok |
|
| Air consumption |
Less |
Less |
Less |
Less |
Less |
Less |
Less |
Less |
Less |
Less |
Less |
|
| Resisitance wear |
High |
High |
High |
High |
High |
High |
High |
High |
High |
High |
High |
|
| Usage |
Quarry |
Quarry |
Quarry |
blasting |
blasting |
blasting |
blasting |
water wells oil gas |
water wells oil gas |
water wells oil gas |
water wells oil gas |
water wells oil gas |
| Rock hardness |
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14-16HRC |
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| Air pressure |
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20KG |
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| Depth meter |
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1.5 M |
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| drilling speed |
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4 minute |
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Audited Supplier 
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