In 2011, the market scale of core drill in China grew by 14.
And the trend has been concerned by some of Chinese industrial players which are intensifying their input in the R&D of full-hydraulic deep-hole core drill products.
Another Sweden-based company, Sandvik, is not only a high-tech transnational company, but one of the three leading core drill producers in the world.
Lianyungang Huanghai Machinery is the only listed Chinese company in China core drill industry, with the major products including full-hydraulic power core drills and spindle-type core drills.
2 inch diameter) diamond core drill
and directional diamond core holes will be drilled toward the mineral targets defined by the in-hole geophysics; and that it is expected to cost less than half of standard drilling approaches.
The geographic location of the core drill
program was selected to coincide with the area of the kaolin deposit most likely to be subjected to initial development.
Coremaster core drills
cut freely at high speeds and are able to straighten a cored hole in one pass, eliminating a finish pass.
Since ordinary rotary core drills
would have turned these soft sediments into soup, the crew used a technique called hydraulic piston coring, which collects fragile sediments virtually intact.