| After-sales Service: | Provide |
|---|---|
| Warranty: | 1 Year |
| Certification: | CE, ISO 9001:2000, ISO 9001:2008 |
| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
|
|---|---|
| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier DTH hammer drill bits for DTH drilling projects.
DTH ( Down The Hole) hammer bits are widely used for open-pit mining, quarry, hydropower engineering, well drilling and excavation side column support, etc.
| Model | Bit diameter mm |
No. Air holes | Weight kg |
HD25 |
76 | 2 | 3.6 |
| 82 | 2 | 4 | |
| 90 | 2 | 4.2 | |
HD35 (3”) |
85 | 2 | 4.2 |
| 90 | 2 | 4.5 | |
| 95 | 2 | 4.8 | |
| 100 | 2 | 5 | |
| 105 | 2 | 5.5 | |
HD45 (4”) |
105 | 2 | 8.5 |
| 110 | 2 | 8.8 | |
| 115 | 2 | 9 | |
| 120 | 2 | 9.8 | |
| 127 | 2 | 11 | |
HD55 (5”) |
135 | 2 | 15 |
| 140 | 2 | 16 | |
| 146 | 2 | 17 | |
| 152 | 2 | 17.5 | |
| 165 | 2 | 18.5 | |
HD65(6”) |
152 | 2 | 22 |
| 165 | 2 | 26 | |
| 171 | 2 | 27 | |
| 190 | 3 | 28.5 | |
| 203 | 3 | 29.5 | |
HD85(8”) |
203 | 2 | 40 |
| 216 | 2 | 49 | |
| 241 | 2 | 64 | |
| 254 | 3 | 71 | |
| 305 | 4 | 95 | |
SD10 (10”) |
254 | 3 | 108 |
| 305 | 4 | 125 | |
| 311 | 4 | 130 | |
| 318 | 142 | ||
| 330 | 4 | 155 | |
SD12(12”) |
305 | 4 | 156 |
| 311 | 4 | 168 | |
| 330 | 4 | 180 | |
| 356 | 4 | 191 | |
| 381 | 4 | 200 |
Delivery Time :10-15days
1,24/7 service by chat online and phone.
2,Lifelong and free technical support.
3,Service overseas: if you need, we can dispatch an engineer to your door.
Henan Rancheng Machinery Co.,LTD is one professional supplier drilling rigs in China ,we
are dedicated in designing and manufacture water well drilling rigs ,rotary drilling rig ,anchor drilling rig ,DTH drilling rig ,solar pile driver,mud pump ,air compressor and drilling tools etc,we have advanced technology ,Modern equipment, first-class team and rich experience ,our products passed ISO9001 ,CE etc certificated ,they are exported to around 200 countries and areas in the world ,get very good feedbacks from our clients.
We pursue the principle of "Customer First, Integrity First", we are sincerely expecting to cooperate with you!!!
1.Why choose us ?
Rancheng Machinery is a very professional drilling rig supplier in China. We have rich experience in this industry for 11 years.Now our products are serving around the world.we have High Quality, Competitive Price, and Fast Shipment.
2.Do you offer any custom designs?
Yes,we have our own trade factory. We provide services to top range partners.Produce a superior product for you by your designs.
3,How to make sure the quality we sent to you is same with what we said?
We are the Golded supplier on Alibaba, order through the alibaba trade assurance, will ganrantee the safe of your money and the quality of the goods.
4.How To Order ?
Step 1, please tell us what model and quantity you need;
Step 2, then we will make a PI for you to confirm the order details;
Step 3, when we confirmed everything, can arrange the payment;
Step 4, finally we deliver the goods within the stipulated time.
5. When will make delivery ?
About 10-15 work days after receipt of the payment.
6.After-sales Service
1 year warranty for all kinds of products;
If you find any defective accessories first time, we will give you the new parts for free to replace in the next order, as an experienced manufacturer, you can rest assured of the quality and after-sales service.
7,whether we can visit your factory
Yes ,you are warmly welcome to visit us .
Suppliers with verified business licenses
Audited Supplier 
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