Xi'an Huizhong Mechanical Equipment Co., Ltd.
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China T38 76mm T45 89mm hard rock drilling bits rods for quarry ,mining drilling
US imports of high-quality steel and carbide manufacturing of China's best, all the threads we produce hot button drill bit technology.
2 Materials and produce process details of Rock Drilling Bits
Material - we use 45CrNiMoVA production of tungsten carbide and YK05 our cone drill bit , these two materials are world-renowned drill production materials .
Our advanced technology --- the tapered drill wheel adopts thermal technology , which is the most advanced technology for the production of tapered round drills .
When cemented carbide or reduced permeability shows signs of damage , button drills should be re-grinded
Fixed abrasive program usually brings good work habits .
For example , after checking the borehole , a plurality of holes drilled at the end of a shift or reground . Premature grinding is not necessarily uneconomic , because of less demand for grinding carbide . The best reground , it will not be damaged and reduced productivity .
Correct grinding greatly increases the service life of the drill bit . But equally important , it also improves the performance of the entire drilling operation , especially straightness of the hole .
3 A comprehensive range of various button bits shown as below
| Thread sizes | R25 , R28 , SSR28 , SSR35 , R38 , T38 , T45 , T51 ...... |
| Head diameters | 33mm ~ 152mm |
| Face designs | flat face , drop center , uni-face |
