| Certification: | ISO 9001:2000, SGS |
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| Standard: | GB |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | Forging |
| Material: | Carbon Steel |
| Model: | Mddhd44-110 |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier Rock drilling tools manufacturer produces a various range of DTH hammer bits with DHD shanks type for a wide range of hole sizes, which have been designed to match all conceivable applications for water well industries, mining and construction.
Shank types: DHD3.5, DHD340A, DHD350R, DHD360, DHD380.
| 1-2 inch Middle air pressure DTH bits | |||||
| Model | Bit Dia.(mm) | NO. X Button Dia. | NO.Air Holes(PCS) | Weight(KG) | |
| Gauge | Front | ||||
| MDHD25-76 | 76 | 6*Φ13 | 5*Φ10 | 2 | 3.6 |
| MDHD25-82 | 82 | 6*Φ14 | 4*Φ11 | 2 | 4.0 |
| MDHD25-90 | 90 | 8*Φ12 | 5*Φ12 | 2 | 4.2 |
| 3 inch hight air pressure DTH bits | |||||
| MDDHD32-85 | 85 | 6*Φ13 | 4*Φ12 | 2 | 4.2 |
| MDDHD32-90 | 90 | 6*Φ14 | 4*Φ12 | 2 | 4.5 |
| MDDHD32-95 | 95 | 6*Φ14 | 4*Φ13 | 2 | 4.7 |
| MDDHD32-100 | 100 | 6*Φ14 | 5*Φ12 | 2 | 5.0 |
| MDDHD32-105 | 105 | 6*Φ14 | 5*Φ13 | 2 | 5.3 |
| MDDHD34-85 | 85 | 6*Φ13 | 4*Φ12 | 2 | 4.2 |
| MDDHD34-90 | 90 | 6*Φ14 | 4*Φ12 | 2 | 4.5 |
| MDDHD34-95 | 95 | 6*Φ14 | 4*Φ13 | 2 | 4.8 |
| MDDHD34-100 | 100 | 6*Φ14 | 5*Φ12 | 2 | 5.0 |
| MDDHD34-105 | 105 | 6*Φ14 | 5*Φ13 | 2 | 5.5 |
| MDDHD44-105 | 105 | 6*Φ14 | 5*Φ13 | 2 | 8.5 |
| MDDHD44-110 | 110 | 7*Φ14 | 6*Φ13 | 2 | 8.8 |
| MDDHD44-115 | 115 | 7*Φ14 | 6*Φ13 | 2 | 9.0 |
| MDDHD44-120 | 120 | 8*Φ14 | 7*Φ13 | 2 | 9.8 |
| MDDHD44-127 | 127 | 8*Φ14 | 7*Φ13 | 2 | 11.0 |
| 5 inch high air pressure DTH bits | |||||
| MDDHD54-135 | 135 | 7*Φ18 | 6*Φ14 | 2 | 15.0 |
| MDDHD54-140 | 140 | 7*Φ18 | 7*Φ14 | 2 | 16.0 |
| MDDHD54-146 | 146 | 7*Φ18 | 7*Φ14 | 2 | 17.0 |
| MDDHD54-152 | 152 | 8*Φ18 | 8*Φ14 | 2 | 17.5 |
| MDDHD54-165 | 165 | 8*Φ18 | 8*Φ16 | 2 | 18.5 |
| 6 inch high air pressure DTH bits | |||||
| MDDHD64-152 | 152 | 8*Φ18 | 7*Φ16 | 2 | 22.0 |
| MDDHD64-165 | 165 | 8*Φ18 | 8*Φ16 | 2 | 26.0 |
| MDDHD64-171 | 171 | 8*Φ18 | 8*Φ16 | 2 | 27.0 |
| MDDHD64-190 | 190 | 9*Φ18 | 9*Φ16 | 3 | 28.5 |
| MDDHD64-203 | 203 | 9*Φ18 | 11*Φ16 | 3 | 29.5 |
| 8 inch high air pressure DTH bits | |||||
| MDDHD84-203 | 203 | 10*Φ18 | 10*Φ16 | 2 | 40.0 |
| MDDHD84-216 | 216 | 10*Φ18 | 12*Φ16 | 2 | 49.0 |
| MDDHD84-241 | 241 | 12*Φ18 | 18*Φ16 | 2 | 64.0 |
| MDDHD84-254 | 254 | 12*Φ18 | 21*Φ16 | 3 | 71.0 |
| MDDHD84-305 | 305 | 12*Φ18 | 29*Φ16 | 4 | 95.0 |
| 10 inch high air pressure DTH bits | |||||
| MDDHD10-254 | 254 | 12*Φ18 | 20*Φ16 | 3 | 108.0 |
| MDDHD10-305 | 305 | 12*Φ18 | 36*Φ16 | 4 | 125.0 |
| MDDHD10-311 | 311 | 12*Φ18 | 36*Φ16 | 4 | 130.0 |
| MDDHD10-318 | 318 | 12*Φ18 | 38*Φ16 | 4 | 142.0 |
| MDDHD10-330 | 330 | 16*Φ18 | 42*Φ16 | 4 | 155.0 |
| 12 inch high air pressure DTH bits | |||||
| MDHD1120-305 | 305 | 12*Φ18 | 36*Φ16 | 4 | 152.0 |
| MDHD1120-311 | 311 | 12*Φ18 | 36*Φ16 | 4 | 157.0 |
| MDHD1120-330 | 330 | 16*Φ18 | 42*Φ16 | 4 | 165.0 |
| MDHD1120-356 | 356 | 16*Φ19 | 48*Φ16 | 4 | 178.0 |
| MDHD1120-381 | 381 | 16*Φ19 | 48*Φ18 | 4 | 198.0 |
| Big size bits using in Waterwells, Oil, Gas and Construction Drilling. | |||||
| MDHD275-311 | 311 | 15*Φ18 | 36*Φ16 | 3 | 205.0 |
| MDHD275-334 | 334 | 18*Φ19 | 44*Φ18 | 3 | 216.0 |
| MDHD275-356 | 356 | 18*Φ19 | 48*Φ18 | 3 | 225.0 |
| MDHD275-368 | 368 | 20*Φ19 | 50*Φ18 | 4 | 230.0 |
| MDHD275-381 | 381 | 20*Φ19 | 54*Φ19 | 4 | 236.0 |
| MDHD330-381 | 381 | 20*Φ19 | 54*Φ18 | 4 | 297.0 |
| MDHD330-406 | 406 | 20*Φ19 | 58*Φ18 | 4 | 311.0 |
| MDHD330-431 | 431 | 20*Φ19 | 64*Φ18 | 4 | 324.0 |
| MDHD330-445 | 445 | 24*Φ20 | 72*Φ18 | 4 | 334.0 |
| MDHD330-470 | 470 | 24*Φ20 | 80*Φ18 | 4 | 347.0 |
| MDHD475-495 | 495 | 24*Φ20 | 88*Φ18 | 4 | 710.0 |
| MDHD475-525 | 525 | 24*Φ20 | 100*Φ18 | 4 | 760.0 |
| MDHD475-580 | 580 | 24*Φ20 | 116*Φ18 | 4 | 855.0 |
| MDHD475-660 | 660 | 28*Φ20 | 140*Φ19 | 4 | 950.0 |
| MDHD475-680 | 680 | 28*Φ20 | 144*Φ19 | 4 | 968.0 |
| MDHD525-711 | 711 | 28*Φ20 | 154*Φ19 | 4 | 1455.0 |
| MDHD525-762 | 762 | 32*Φ20 | 172*Φ19 | 4 | 1539.0 |
| MDHD525-780 | 780 | 32*Φ20 | 180*Φ19 | 4 | 1564.0 |
| MDHD525-825 | 825 | 36*Φ20 | 216*Φ19 | 4 | 1625.0 |
| MDHD525-998 | 998 | 40*Φ20 | 348*Φ19 | 4 | 1980.0 |
It is widely used in earth and stone engineering mining Wells drilling construction projects drilling Wells edge pillar support.
Wuhan Kingdrilling Diamond CO., LTD, one of the most professional private manufacturer specialized in researching and producing Overburden casing drilling system, DTH hammer, DTH drill bits, Core bits, Thread bits, Taper bits, Shank adapter, Drilling rods, Coal mining picks and related rock drilling tools.
Relying on the university resources and talent advantages in High-tech region, combining with multiple laboratories in universities, we have more power focused on developing the newest products system.
Our DTH drilling tools are produced with advanced technology from Britain. The company is equipped with advanced production facilities including electron-hydraulic forging hammer, multipurpose furnace heat treatment production line, high performance CNC machines, from raw materials prepared, forging, heat treatment, mechanical processing, a completed manufacturing system is finished in the factory. Strict quality control standards make sure stable quality.
Whatever in construction, engineering, piling, water well drilling, tunneling, mining, quarrying or horizontal drilling industry, KINGDRILLING will do the best to satisfy your demands. "Kingdrilling, Keep On Striving", we'll always be in this line to serve our customers the most reliable products and the best support.
1.Pre-sale service:
If demand, assist clients to get rich and generous returns on their investments.Select DTH tools model.Design and manufacture down the hole products according to client's requirement.
2.Services during the sale:
Assist clients to draft solving plans.
Pre-check and accept Rock drill products ahead of delivery .
3.After-sale services:
Our sales team will response for your question within 24 hours (Holidays Excluded)
Technical Support will be available in any time.
Free replacement can be provided once the failure confirmed caused by our product quality.
Packed by Carton or Wooden cases.
Delivery:
Transprotation: By air, By Express or By sea / By train , according to your requests.
1. How to order the products?
A: Please send the inquiry with detail item description or with Model number.
2. How about the common packing?
A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.
3. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.
4. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any misunderstanding or any links from our website for a better understanding.
5. How to control quality?
A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.
6. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.
7. Shipping way:
A: Sample order: we suggest Courier express delivery such as DHL/UPS/TNT/FEDEX or by air
Bulk order: by air or by sea we suggest.
8. Competitive price:
A:KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor!
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