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Drill Rigs and Machinery of Epiroc(三)
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20
2021-07
Nowadays, there are many types of drill rigs in the market, which are mainly divided into surface drill rigs, underground production drill rigs, underground face drill rigs, and rock bolting rigs.
Drill Rigs and Machinery of Epiroc(二)
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12
2021-07
In the mid-1950s, manufacturers began to apply hydraulic technology to the control system of drill rigs. In addition to the impact system and rotation system of drifters, the rotation, feed and walking systems of drill rig were all hydraulically controlled. The system greatly shortens working time and improves production efficiency.
Drill Rigs and Machinery of Epiroc (一)
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26
2021-06
In the late 1940s, the drilling efficiency continued to increase with the rapid development of pneumatic drilling machinery. In order to increase the output power of a drilling machine, it is necessar
Technical characteristics of Atlas Copco's hydraulic drifters
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17
2021-06
(1) double-sided oil return;

(2) slender piston, small impact stress wave, long duration, and long service lives of piston and drilling tool is ;
Models and applications of Atlas Copco’s hydraulic drifters
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11
2021-06
Atlas Copco currently has a total of 17 types of hydraulic drifters, which can be divided according to their applications into 5 categories as shown in Table 2. Among them, the COP 1132 drifter can be
The code guide of Atlas Copco's hydraulic drifters Quoted from the original article by Zhou Zhihong, Ma Fei and Zheng Lixia
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04
2021-06
There are 4 digits in the code of Atlas Copco hydraulic drifters. The first 2 digits indicate the impact power of the drifter, and the last 2 digits indicate the diameter of drill rods. For example, C
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