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How to judge the grade of rock hardness

2021-07-29

1. f=20, The hardest, or ultra hard. i.e., the densest, toughest quartzite, basalt and various other particularly hard rocks. 2. f=15, Very hard. Very hard granite, quartz porphyry, siliceous schist, relatively hard quartzite, the hardest sandstone and limestone. 3. f=10, Hard. Firm Dense granite, ...
A quantitative indicator of the solidity of the ore.

2021-07-29

A quantitative indicator of the solidity of the ore. People have realized in longterm practice that some rocks are not easy to break, and some are difficult to break. Rocks that are difficult to break are generally difficult to drill, and difficult to blast, so they're hardness is relatively large, ...
DTH Hammer and Bit Model No and its brand Roschen

2021-07-29

- Atlas Copco : COP32, COP34, COP44, COP54, COP64 COP84 - Bulroc : BR1, BR2, BR3, HYPER31, HYPER41 .. . - Halco : DOM10O, MACH20, MACH303, DART350, MACH44, DOMINATOR400, MACH50, MACH60 ... = Ingersoll Rand : lR3.5, DHD34O, DHD350, DHD360, DHD38O, QL4, QL5, QL60 ... - Mincon : MINCON 3.5, MINCON 4, ...
DTH (down the hole) Button Bits

2021-07-29

Down-the-hole (DTH) bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a splined drive for rotating the bit in the ground. Drill bits are available in different sizes and different ...
What should be paid attention to when using down-the-hole drills

2021-07-29

Using the down-the-hole (DTH) drill bit correctly, to ensure the rock drilling speed and service life of the bit, you should pay attention to the following points: 1. According to the rock condition (hardness, abrasiveness) and drilling rig type (high wind pressure, low wind pressure), choose the ...

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How to judge the grade of rock hardness

A quantitative indicator of the solidity of the ore.

DTH Hammer and Bit Model No and its brand Roschen

DTH (down the hole) Button Bits

What should be paid attention to when using down-the-hole drills

Down The Hole Drilling

Drill Rod

Tricone Drill Bit

Diamond Core Drill Bits

Down The Hole Hammer