| Certification: | ISO 9001:2000, SGS |
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| Standard: | GB |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | Forging |
| Material: | Carbon Steel |
| Model: | Mdhd525-998 |
| Samples: |
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| Customization: |
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Audited Supplier KINGDRILLING hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a spline drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes. Our variety of Down the Hole (DTH) bits is manufactured using high quality materials to provide you with a fine balance between penetration capability and bit life.
Featuring a simple structure and convenient operation, our DTH Drill Bit is suitable for both experienced professionals and beginners. Its user-friendly design allows for easy installation and hassle-free operation, saving you time and effort on the job site.
One of the standout features of the DTH Drill Bit is its high drilling wear life and drilling efficiency. Engineered to deliver maximum productivity, this drill bit allows for faster and more efficient drilling, contributing to increased work efficiency and reduced downtime.
| 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 |
How to choose the suitable head face of the DTH drill bit?
a. Concave:
Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.
b. Convex:
Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.
c. Flat:
Suitable for special hard formation stratum, especially for fracture, crack spacing and complex formation drilling effect is very good, has the good perpendicularity of the borehole.
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:
Act as a good adviser and assistant of clients enable them to get rich and generous returns on their investments .
1.Select equipment model;
2.Design and manufacture products according to client's special requirement ;
3.Train technical personnel for clients .
1.Pre-check and accept products ahead of delivery .
2. Help clients to draft solving plans .
Provide considerate services to minimize clients' worries.
1.Complete After-sales service,professional engineers available to service machinery at home or oversea.
2. 24 hours technical support by e-mail.
3.Other essential technological service.
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. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.
3. 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.
4. Competitive price:
A: KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor.
5. What is the Application?
Mining, Quarrying, Tunneling, Construction, Geological Exploration, Water-well Drilling, Oilfield & Gas Industries.
6. Product feature
Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer, and harness process is managed by multipurpose furnace heat treatment.
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