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Product Details
Symmetric Overburden Dirlling Equipment
Min.Order Quantity: 1 Piece/Pieces
Supply Ability: 100000 Piece/Pieces per Month
Port: Tianjin port/Shanghai port/Guangzhou port Shenzhen/Qingdao
Payment Terms: L/C,T/T,Western Union,MoneyGram,Paypal
Introduction
We are a professional and experienced integrated drill enterprise which engages in the design, research,development, manufacturing and marketing of different kinds of product in superior quality, competitive price and perfect service for more than 20 years
Product Description
More detail, welcome to send Inquiry or Email: [email protected]
| Features | Hardening treatment of the part's surface With longer operating life and excellent anti-wear properties Strucural optimization Strengthen the structural strength,easy to operate,reliable performan Superior performance Smooth with high efficiency |
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| Technical Data | ||||||
| Outer Dia(A) mm | Inner Dia(B) mm | Reamed Dia(C) mm | Inner Dia.of Casing Shoe(D)mm | Max Outer Dia.of Normal Bit(F)mm | Hammer Type(E) | Drill Pipe mm |
| 108 | 93-99 | 118 | 86 | 77 | FRTDHD3.5 QL30 | 76 |
| 114 | 102-104 | 127 | 91 | 82 | FRTDHD3.5 QL30 | 76 |
| 127 | 115-117 | 136 | 101 | 92 | FRTDHD3.5 QL30 | 76 |
| 140 | 124-128 | 152 | 117 | 105 | FRTCOP44 QL40 | 76 |
| 146 | 130-134 | 154 | 117 | 105 | FRTCOP44 QL40 | 76 |
| 168 | 148-156 | 185 | 140 | 125 | FRTCOP54 QL50 | 76/89 |
| 178 | 158-166 | 195 | 150 | 140 | FRTCOP54 QL50 | 76/89 |
| 183 | 163-171 | 193 | 154 | 144 | FRTCOP54 QL50 | 89/114 |
| 194 | 174-182 | 211 | 166 | 150 | FRTCOP64 QL60 | 89/114 |
| 219 | 199-207 | 237 | 193 | 165 | FRTCOP64 QL60 | 89/114 |
| 245 | 225-233 | 260 | 210 | 190 | FRTCOP84 QL80 | 114 |
| 273 | 253-257 | 308 | 241 | 220 | FRTCOP84 QL80 | 114/127 |
| 325 | 305-309 | 348 | 281 | 255 | SD10 NUMA100 | 127 |
| 406 | 382-388 | 440 | 364 | 340 | SD10 NUMA100 | 140 |
| Order Guide:Outer Dia.(A)+Inner Dia.(B)+Reamed Dia(C)+Inner Dia.of Casing Shoe(D)mm+Hammer Type(E) | ||||||
| It is suitable for drilling water wells,short mircopiles,medium mini-type grouting hole of building,dam and harbour project | |
 | 1,Ring bit and casing shoe assembly is welded to casing prior to drilling.Lock the assembly into pilot bit with hammer.The pilot bit's upper shoulder engages the shoulder of the casing shoe |
 | 2,Hammer's percussive energy is transferred through the pilot and ring bits,crushing rock.Part of impact energy advances casing |
 | 3,On completion of drilling and casing,the drill string with pilot bit is retrieved by a slight reverse rotation to unlock the bayonet coupling.The ring bit stays in the hole,and can be recovered only if the casing is retrieved. |
 | 4,Drilling continues to the desired depth in the bedrock using a conventional drilling |
More detail, welcome to send Inquiry or Email: [email protected]
| We can design and manufacture according to customer's requirements of the Bit Dia.,No.of air holes,carbide button shape and the face shape | |
| Our Bit Face Shape Selection | |
| Double Gauge Face——This kind of face shape is suitable for fast penetration rates in medium to hard rock formation.Designed for high air pressures and good resistance to steel wash step gauge bit.dth hammer drill bit / low air pressure tungsten carbide dth drill button bits | |
| Convex Face—For high penetration rates in soft to medium-hard with low to medium air pressures.It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons,but poor hole deviation control. | |
| Concave Face---The all-round application bit face specially for medium hard and homogenerous rock formations.Good hole deviation control and good flushing capacity. | |
| Flat Face---This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures.Good penetration rates an resistance to steel wash. | |
Drop Center---For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures.Maximum hole deviation control.dth hammer drill bit / low air pressure tungsten carbide dth drill button bits | |
| Our Carbide Button Shape Selection | |
Spherical/Domed/Round Button are usually used as gauge buttons of DTH Bits, suitable for very abrasive and very hard formations. | |
Parabollic/Semi-Ballistic Button are usually used as gauge buttons and front buttons of DTH Bits,suitable for medium abrasive and hard formations. | |
Ballistic Button are usually used as front buttons of DTH Bits, suitable for medium abrasive and medium hard formations. They also can be used as gauge buttons if the rock is soft. | |
Conical/Cone/Sharp Button are usually used as front buttons of DTH Bits for soft formations where fast penetration rates are possible and button breakage is minimal. |
The information you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Within 10 days supplied from stock
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 every order before shipping out.
5. After Sale Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
Frequently asked questions:
1. How to order the products?
Send the inquiry with detail item description or with Model number.
2. How about the common packing?
If there is no packing demand, we will take it as sea-way packing.
3. Can I expect a quality products?
Yes. All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.
4. How to check the product are the exact one you want?
If possible, please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
Our dth drill bits advantages:
1.High quality.
2.Competitive price:Cheap price because of direct factory price.
3.Problems solve ability:This ability comes from rich experiences of drill bits industry.
4.Fast delivery time:usually it takes 25 days for production.only 2 or 3 days if we have stock of your request size.
5.Best quality control:We have our own experienced QC team,there will be strict inspection and testing for every order before shipping out.
6.OEM,ODM service:your own request about product will be served well.
7.Best after service:We will go to your place to check and solve the problems if there
More detail, welcome to send Inquiry or Email: [email protected]