There must be some tough-hardness rocks in stone production lines that we have to confront, and there are some reasons being listed in the followings:
Firstly, some higher-standard engineering projects require that the sandstone aggregate must be owning some compression strength such as the surface of the high-speed roads, airport runway, concrete and so on.
Secondly, the best materials supplying range is only having the rocks, and the transportation cost possibly will cost much more than that of the crushed rocks if the customers want to transport some soft-rocks materials from the remote places.
Thirdly, there must be a lot of slags that cannot be used if some high-speed roads or railways are requiring the mountain channels, and those slags or some tough-rocks can be used in the building construction to be the aggregate.
Frankly speaking, the so-called hardness rocks are not so terrible, and the more terrible thing is that we don't know how to choose the reasonable cone crusher and how to configure one successful stone production line. Most of the crusher manufacturers will introduce the cone crusher while the materials of the customers are the rocks, and little of those enterprises will not do so because they don't supply them, but cone crusher indeed is the key equipment of overcoming the difficulty in the crushing process, and the wear-resistant level of its wearing parts can be higher 5-10 times than that of impact crusher or vertical shaft impact crusher.
Cone crusher has different varieties such as the spirals, the hydraulic, which is pointing to the security device that preventing from the foreign body to block the smooth operation, and that is the reason why cone crusher can be widely used in the hardness rocks processing, and this machine also has become one of the most important procedures in stone production lines.
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