Professional China 3 Inch Down The Hole Hammer - Large diameter DTH drilling tools – Spark
Professional China 3 Inch Down The Hole Hammer - Large diameter DTH drilling tools – Spark Detail:
Advantages
1.Using DTH hammer drilling is a good way to drill through cave formation and avoid stuck problem.
2.When encountering caves, drill bit inclines to the cave. You can add a stabilizer to ensure the hole straightness.
Large diameter DTH hammer
We can supply large diameter DTH hammers and bits with different shanks:
12”: DHD112, SD12, NUMA120, NUMA125
14”: NUMA125
18”: NUMA180
24”: NUMA240
12” NUMA120 HAMMER
|
PRODUCT NAME |
NUMA120 HAMMER |
|
BIT SHANK |
NUMA120 WITH FOOT VALVE |
|
CONNECTION THREAD |
API 6 5/8 REG |
|
MAX. WORKING PRESSURE |
30 BAR |
|
AIR CONSUMPTION |
70m³/min (18BAR) |
|
RECOMMEND ROTATION SPEED |
15-40 r/min |
|
OUTER DIAMETER |
275MM |
|
REC HOLE SIZE |
305-350MM |
|
LENGTH WITHOUT BIT |
1698.5MM |
|
WEIGHT |
550KG |
|
ITEM DESCRIPTION |
|
| NO | PART LIST |
| 1 | TOP SUB (can insert carbides) |
| 2 | TOP SUB RING |
| 3 | CHECK VALVE |
| 4 | SPRING |
| 5 | SHOCK RING |
| 6 | CHECK VALVE GUIDE |
| 7 | AIR DISTRIBUTOR GUIDE |
| 8 | PRESSURE BEARING RING |
| 9 | AIR DISTRIBUTOR TUBE |
| 10 | PISTON |
| 11 | OUTER CYLINDER |
| 12 | BUSH DRIVE SUB |
| 13 | O RING |
| 14 | BIT RETAINING RING |
| 15 | STEEL RING |
| 16 | CHUCK SLEEVE |
24” NUMA240 HAMMER
|
PRODUCT NAME |
NUMA240 HAMMER |
|
BIT SHANK |
NUMA240 WITH FOOT VALVE |
|
CONNECTION THREAD |
HEX |
|
MAX. WORKING PRESSURE |
30 BAR |
|
AIR CONSUMPTION |
130m³/min (18BAR) |
|
RECOMMEND ROTATION SPEED |
15-25 r/min |
|
OUTER DIAMETER |
525MM |
|
REC HOLE SIZE |
500-1000MM |
|
LENGTH WITHOUT BIT |
2543.5MM |
|
WEIGHT |
2598KG |
|
ITEM DESCRIPTION |
|
| NO | PART LIST |
| 1 | TOP SUB (can insert carbides) |
| 2 | TOP SUB RING |
| 3 | STEEL RING |
| 4 | CHECK VALVE |
| 5 | SPRING |
| 6 | SHOCK RING |
| 7 | CHECK VALVE GUIDE |
| 8 | O RING |
| 9 | AIR DISTRIBUTOR GUIDE |
| 10 | PRESSURE BEARING RING |
| 11 | O RING |
| 12 | AIR DISTRIBUTOR TUBE |
| 13 | PISTON |
| 14 | OUTER CYLINDER |
| 15 | BIT RETAINING RING |
| 16 | STEEL RING |
| 17 | CHUCK SLEEVE |
Large diameter DTH bit
The large diameter bits are mainly used in three applications: embedded prefabrication pile, long spiral pile and large diameter end bearing pile.
The bit face mainly used concave face. The advantage of these face can ensure the straightness of the hole.
Specification
| Bit shank | DHD112, SD12, NUMA120 |
| Recommend hole size | 305-350mm (standard) |
| Max. hole size | 580mm (oversized) |
| Bit face | convex, drop center |
| Material | alloy steel |
| Button type | spherical, ballistic, semi-ballistic |
| Button grade | YK05, KD10 |
| Button installation method | cold pressing |
| Bit shank | Numa180 |
| Recommend hole size | 500-650mm (standard) |
| Max. hole size | 770mm (oversized) |
| Bit face | convex, drop center |
| Material | alloy steel |
| Button type | spherical, ballistic, semi-ballistic |
| Button grade | YK05, KD10 |
| Button installation method | cold pressing |
| Bit shank | Numa240 |
| Recommend hole size | 650-800mm (standard) |
| Max. hole size | 1000mm (oversized) |
| Bit face | convex, drop center |
| Material | alloy steel |
| Button type | spherical, ballistic, semi-ballistic |
| Button grade | YK05, KD10 |
| Button installation method | cold pressing |
Product detail pictures:
Related Product Guide:
Our pursuit and company goal is to Always satisfy our customer requirements. We continue to develop and design superior quality products for both our old and new customers and achieve a win-win prospect for our clients as well as us for Professional China 3 Inch Down The Hole Hammer - Large diameter DTH drilling tools – Spark , The product will supply to all over the world, such as: Muscat, Mombasa, Bahrain, We follow superior mechanism to process these goods that ensure optimum durability and reliability of the goods. We follow latest effective washing and straightening processes that enable us to supply unmatched quality of items for our clients. We continually strive for perfection and all our efforts are directed towards attaining complete client satisfaction.
By Emily from India - 2018.06.12 16:22
Hope that the company could stick to the enterprise spirit of Quality, Efficiency, Innovation and Integrity, it will be better and better in the future.
By Christine from Hungary - 2017.11.01 17:04
