Tapered drill rod (taper steel rod, taper drill steel), which provides a hexagonal chuck section to provide leverage for the rotation chuck bushing. It usually has a forged collar to maintain
the ...
From October 12 to October 18, our Sanshan’s technicians conducted field tests on the 2.0 version of 76T45,89T45 thread button bit in miaogou iron mine, qinhuangdao, hebei province. The custo...
With the advanced technology from both China and abroad, the production line of the picks is a continuous chain step furnace, composed of a welding furnace, a quenching furnace and a tempering furn...
Here in the United States we used to refer to tunneling by drill-and-blast as “conventional” tunneling, which I guess leaves tunneling by TBM or other mechanized means to be referred to as “Unconve...
Extension rods are made by hollow drill steels; there are two shapes of extension rods, round type and hexagonal type. This hollow hole are usually named flushing hole, used for transmitting water ...
Tapered drill rods have become one of the essential tools in the mining and construction industries. These rods are primarily used to hold and transfer energy from the rock drill to the drill bit, ...