Wholesale Discount Sd Shank Bit - Large diameter DTH drilling tools – Spark
Wholesale Discount Sd Shank Bit - 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 intention is usually to satisfy our buyers by offering golden provider, great rate and good quality for Wholesale Discount Sd Shank Bit - Large diameter DTH drilling tools – Spark , The product will supply to all over the world, such as: Orlando, Benin, Jamaica, We believe in establishing healthy customer relationships and positive interaction for business. Close cooperation with our customers has helped us to create strong supply chains and reap benefits. Our products have gained us widespread acceptance and the satisfaction of our worldwide valued clients.
By Betty from Czech Republic - 2017.09.16 13:44
It is not easy to find such a professional and responsible provider in today's time. Hope that we can maintain long-term cooperation.
By Claire from Germany - 2017.05.02 18:28
