Small Rock Grinder Machine Price
Major rock types processed by the stone crushing and grinding application include limestone, granite, dolomite, traprock, sandstone, quartz, and quartzite. Minor types include calcareous marl, marble, shell, and slate. Major mineral types processed by the pulverized minerals industry, a subset of the crushed stone processing industry, include calcium carbonate, talc, and barite.
A wide range of mills has been developed for particular applications. Some types of mills can be used to grind a large variety of materials whereas others are used for certain specific grinding requirements. SBM is global supplier and manufacturer of rock crushing and grinding equipment. We developed complete series of stone and rock grinding plant for sale, such as ball mill, high pressure mill, hammer mill, roller mill, ultrafine mill, trapezium mill, raymond mill etc.
The grinding plant capacity ranges from 80tph-1200tph, which can be applied in small scale, medium scale and large scale powder production applications. If you want to know small rock grinder machine price or any other information, please feel free to contact us.
Ball Mill for Rock Grinding
Ball mills are similar in concept to the rod mill but are charged with steel balls in place of the rods. The mill consists of a cylindrical drum, sometimes tapered at one end, and usually has a charge of steel balls (up to 40% by volume) ranging in size up to 125mm for larger mills. Product size can be as small as 0.005mm, but product size is dependant upon the time the charge spends in the grinding zone and therefore the reduction rate is a function of the throughput.
The lining material is of great importance as there is a significant amount of wear taking place due to the action of the steel balls. The speed of rotation is optimum at about 75% of critical speed.
Roller Mill for Rock Grinding
There are two distinct type of roller mill. The first is a series of rollers which rotate around a central axis within a drum. The reduction takes place between the rollers and the drum. The second is where there are a series of fixed rollers and a rotating table. The milling takes place between the rollers and the table.
This type of mill is used for dry grinding only and accepts onlyrelatively soft minerals. Small machines can have a throughput of only a few tens of kg per hour whereas larger machines are capable of handling up to 40 or 50 tons per hour and occasionally more. Feed size varies according to the machine. The machines are often fitted with screens for closed-circuit grinding.