Basic Info.
Certification
ISO 9001:2000, SGS
Surface Treatment
Spray-Paint
Manufacturing Process
Forging
Bit Shank
HD85(DHD380r, Cop84)
Transport Package
Wooden Case
Product Description
254mm COP84 HD85 DHD380R High Air Pressure Bits for Ground Hole DrillingProduct Description
Down the hole(DTH) tools manufacturer KINGDRILLING supply DTH Drill Bits are available in a wide range of sizes and with a number of custom design features for optimum performance in a rock formation, which are designed to match all conceivable applications for water well industries, mining and construction.
Function of Down The Hole Drill Bits
Down The Hole drill bits play a crucial role in the drilling process by effectively breaking and removing rock material to create boreholes of varying depths and diameters. The function of DTH drill bits can be summarized as follows:
Rock Breaking: The primary function of a DTH drill bit is to break and fracture rock formations encountered during drilling. The high-velocity impact energy generated by the Down The Hole hammer is transferred to the drill bit, causing the tungsten carbide inserts to exert pressure on the rock surface, leading to its fragmentation.
Cutting and Clearance: As the DTH drill bit rotates and advances into the rock, the tungsten carbide inserts on the bit face cut into the material, creating rock chips and cuttings. Simultaneously, the flushing action of water or air through the nozzles helps clear these cuttings from the borehole, preventing bit clogging and maintaining drilling efficiency.
Hole Formation: Through a combination of impact force, rotation, and flushing, DTH drill bits facilitate the creation of precise and well-defined boreholes in various rock formations. The design features of the bit ensure optimal contact with the rock surface, allowing for controlled drilling and hole formation.
Technical Date
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 | 02 | 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 |
Kindly Note: We can also design and manufacture the different diameter, holes number, carbide button shape and face shape according to the customers' requirement.
How to choose the suitable head face of the DTH drill bit?
1. Concave:
Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.
2. Convex:
Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.
3. 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. Product Application
Geothermal well drilling, Water well drilling, Coal mining drilling, Construction, Quarry, Rock Drilling, Exploration drilling, Oil well drilling.
Company Profile
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.
Our Advantages
- High quality: We are the partners with a lot of big factories in China. We can provide the best quality products to you.
- Competitive price: Competitive price because of direct factory price.
- Fast delivery time: It usually takes 20 days for production.only 3 or 5 days if we have stock of your request size.
- Best quality control: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.
- Problems solve ability: This ability comes from rich experiences of drill bits industry and reliable sales..
- OEM,ODM service: Your own request about product will be served well.
- Best after service: We will go to your place to check and solve the problems if you need.
After Sales Service
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 .
2.Services during the sale:
1.Pre-check and accept products ahead of delivery .
2. Help clients to draft solving plans .
3.After-sale services:
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.
Packaging & Shipping
Packed by Carton or Wooden cases.
Delivery:
- Goods in stock can be delivered within 5 days.
- DTH Bits production time is about 15 days.
- DTH Hammer product time is about 30 days.
Transprotation: By air, By Express or By sea / By train , according to your requests.
FAQ
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 3 or 5 days if we have stock on your request size.
3. Shipping way
Sample order: We suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: We suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for each order before shipping out.
5. After Services:
1. Our sales team will response for your question within 24 hours (Holidays Excluded)
2. Technical Support will be available in any timeMore products:
Address:
NO.4101,Building 1,Gezhouba Plaza,Jianghan district,Wuhan 430021, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Construction & Decoration, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Tools & Hardware
Management System Certification:
ISO 9001
Company Introduction:
Wuhan Kingdrilling Diamond Co., Ltd is one of the most professional manufacturer in DTH tools for water well drilling, geothermal drilling, mining drilling, bore hole drilling and so on. The main products include casing drilling system, DTH hammer, DTH drill bits, Button Bits, Thread Bits, taper Bits, Tricone bit, Road Milling Tools, Coal Picks, Drill Pipes, Chisel Bits, Cross Bits etc. Customization is also acceptable to meet your requirements.
Our factory produce DTH tools with advanced technology from Britain, a completed manufacturing system has been formed in plant. The company is equipped with advanced production facilities including electron-hydraulic forging hammer, multipurpose furnace heat treatment production line, high performance imported numerical control machines, all processes from raw materials prepared, heat treatment, metal processing are completed in the factory. Strict quality control standards make sure stable quality.
Whatever in construction, mining, oil, natural gas, quarry or horizontal drilling industry. KINGDRILLING always do their best to meet your demands. Our commitment gives customers the peace of mind, and we will always be in this line to serve our customers the most reliable products and the best support.