In the crushing market, there are have many types crushers and all have different strengths, but also has various drawbacks, and the crushed material is also somewhat different. Usually, crusher device types to determine the selection and specification of the physical properties of the ore processed. Such as hardness, density, viscosity, including clay content, moisture content, the maximum particle size of the ore, etc.. The handling capacity, broken product size and device configuration and other factors. The choice of crushing equipment must meet the crushed product size, design capacity and adapting to the largest ore nuggets, generally not more than the crusher to the mine mouth width of 0.8 to 0.85 times; medium and fine crushing machine is not greater than 0.85 to 0.9 times.

For very strong or quite sturdy, meticulous, tough quartzite, basalt, granitic rocks, quartz porphyry, sandstone, limestone, iron ore, quartz veins, conglomerate, magnesium ore, marble, dolomite, yellow iron ore, siliceous shale, sandstone and some shale cause high hardness ore crushing capacity will need to choose a strong crushing equipment (jaw crusher), as with other ways of grinding hammer crusher, will be the machine was severely worn.

Some medium hardness ore, such as clay rocks, not solid limestone, sandstone, marl density, etc., you can use this type of ore jaw crusher, hammer crusher, roll crusher can also be used,  hammer crusher for crushing has very wide range of options.

The compressive strength of weak minerals, such as weak shale, chalk, rock salt, gypsum, anthracite, ordinary marl, crushed sandstone, cemented conglomerate, stony soil, crushed shale, etc. are not necessary with a jaw crusher for crushing, the choice of hammer crusher, roll crusher, impact crusher, cone crusher, compound crusher can be.

In terms of the water content of the ore, humidity is too large ore is inappropriate to rely on with grate grate plate orifice plate materials hammer crusher, such as the clay mixture. Not it is appropriate for brittle ore grinding style crusher, grinding or products will be much too small, such ore crusher is appropriate.

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