Complaint
Product parameters | |||||
| ITEM | OD | ID | Height | Teeth NO. | corebarrel |
| 75# | 75 | 54.5 | 95 | 4/9 | 73 |
| 94# | 94 | 74 | 120 | 6 | 89 |
| 113# | 113 | 89 | 120 | 8 | 108 |
| 133# | 133 | 109 | 130 | 10 | 127 |
| 153# | 153 | 129 | 145 | 12 | 146 |
| 171# | 171 | 147 | 145 | 14 | 168 |
| 200# | 200 | 174 | 150 | 16 | 194 |
| 219# | 219 | 193 | 150 | 18 | 219 |
| 245# | 245 | 219 | 200 | 20 | 425 |
| 275# | 275 | 249 | 200 | 22 | 273 |
| 325# | 325 | 299 | 200 | 24 | 325 |
| Rock grouping and recommended use of the bit table | ||||
| Grade | name | Represents | Drilling speed | Suggested drill bit |
| 1 | Loose soil | redeposited loess,lateritite,Soft sandy soil free of gravel and breccia,diatomite | 15/H | Pineapple bit,slice,plain film,Scraper coreless bit |
| 2 | Loose soil | loess,red clay,cumulosol,Sand soil,Kaolin class | 8/H | Pineapple bit,denticle,slice,Triangle,Bread |
| 3 | Soft rock | Strongly weathered shale,Slate,schist,Slightly cemented sand layer | 6/H | Scraper coreless bit,Concave three wings,slice,Breadslice |
| 4 | A little soft rock | Slate,arenaceous shale,carbonaceous shale,argillaceous marl,calcareous shale | 5/H | scraper,Recessed coreless bit,slice,Bread,Breadslice,Triangle,Electroplated diamond |
| 5 | A little hard rock | Rubble and gravel layer collapse layer,Slate,limestone,Marble,schist | 3/H | Concave three wings,Bread,A helmet piece,Electroplated diamond |
| 6-7 | Medium hardness | Slate,schist,Silicified limestone,Calcite | 2/H | Bread,A helmet piece,Electroplated diamond,Hot pressed diamond,Innovative no.7 fast bit |
| 6-7 | Medium hardness | Slate,schist,Silicified limestone,Calcite | 2/H | Bread,A helmet piece,Electroplated diamond,Hot pressed diamond,Innovative no.7 fast bit |
| 8-9 | Hard layer | Basalt,Quartz anshan porphyry,Fai green rock | 1.2/H | A helmet piece,Low-alcohol electroplating,Low thermal,Innovative no.7 fast bit |
| 10-11 | Super Hard rock | Granite,granodiorite,gneiss,rhyolite,aposandstone | 0.8/H | Low-alcohol electroplating,Low thermal,Innovative no.7 fast bit |
| 12 | Super Hard rock | aposandstone,jasperite,hornberg,corundolite | 0.3/H | Low-alcohol electroplating,Low thermal,Innovative no.7 fast bit |
Main product
Application
Borehole drilling, Civil Infrastructure, civil engineering, and infrastructure, for rock core drilling, Soil Testing and sampling, geophysical survey companies, Pile foundation drilling, bridge drilling, wind power generation, large-mouth engineering drilling, oil field, metallurgy, mining, geological mineral exploration, water conservancy and hydropower construction, coal mine, mine tunnel drilling, grouting reinforcement engineering, highway, subway, high-speed rail, concrete core sampling, etc, Coring exploration, drilling.
Workshop
Why we achive today′s achievements is because we are supported and assisted by a highly experienced team of designers and engineers that enable us to complete all the assigned projects successfully as per the specified requirement from our clients. Speedmade Industries Co., Ltd will continue committing to provide low cost Rock Drills, Drilling tools, well drilling rigs, high efficiency drilling tools, energy saving and environmental product for domestic and international clients.
-WHY CHOOSE US-
--The first-class engineers of tricone bits and PDC bitsDIY customization: please provide your rock formation information or detailed size drawings.
Free samples: some samples can be provided free of charge.
Payment:T/T L/C,D/A,D/P,Western Union,MoneyGram.
| Packaging |
| Wood Box Fumigation Tray if necessary Other special package can be applied according to customer's need |
| Delivery |
| Prepared to deliver within 1 week, if in stock Depends on order quantity, when out of stock Transportation:By sea or air |
