Kefid will participate in the 129th Canton Fair

The 129th China Import and Export Fair(The 129th Canton Fair) will be held in Guangzhou from Apr 15, 2021 to Apr 24, 2021. Kefid will participate in it with our full range of high quality equipment. W...

The factors affecting the working efficiency of stone crushers

The first is the hardness of the crushed stone. The stone crushed by a stone crusher is generally a material with a higher hardness. If the stone is harder, it will be more difficult to crush, and it ...

The equipment for processing weathered rock to sand

Weathered rock is the phenomenon of rock fragmentation, looseness and changes in mineral composition under the action of solar radiation, atmosphere, water and organisms. Generally it divided into unw...

The prospect of the limestone production line

The main component of limestone is calcium carbonate (CaCO3), which can be directly processed into stone and burned into quicklime. Lime includes quicklime and slaked lime. The main component of quick...

Building plaster powder and desulfurization gypsum powder processing equipment

Building gypsum powder production line (natural gypsum) recommended equipment:This type of gypsum powder production line adopts domestic mature process equipment, such as vertical mills, boiling furna...

The construction methods and technological processes of tunnel slag processing sand and gravel aggregates

Processing tunnel slag into sand and gravel aggregate is a relatively reasonable and economically valuable utilization method. In view of the complex processing environment of tunnel slag, today I wil...

The factors for the wear of the roller skin of the roller sand making machine

Hydraulic roller sand making machine is also called hydraulic roller crusher or cobblestone sand making machine. It is to upgrade the old spring roller sand making machine and replace the original spr...

The function of the powder classifier's sprinkler tray and its influence on the efficiency of powder selection

The separation efficiency of the powder classifier refers to the ratio of the amount of fine powder passing through the specified aperture screen in the finished product after the powder selection to ...

The factors that need to be considered when choosing gyratory crusher

1. The main engine and auxiliary equipment and civil engineering of the gyratory crusher have a large investment, but the operating cost is low, so it is suitable for the working conditions of long se...