Ball mills are employed in either primary or secondary grinding applications In primary applications they receive their feed from crushers and in secondary applications they receive their feed from rod mills AG mills or SAG mills Sign in to download fullsize image Figure 811
Secondary Grinding – Ball Mills In secondary ball milling abrasive and corrosive conditions predominate The smaller balls 2½” 65 mm typically used in secondary milling environments effectively reduce the impact component of wear to the point where grinding media must be primarily designed to reduce abrasive and corrosive wear
If finer grinding is wanted two or three stage grinding is advisable as for instant primary rod mill with 75100 mm 3″4″ rods secondary ball mill with 2540 mm1″1½” balls and possibly tertiary ball mill with 20 mm ¾” balls or cylpebs
Oct 12 2017 · Ball mill is a fine grinder A horizontal or vertical rotating cylinder which is filled partially with the balls of ceramics small rocks and balls made from stainless steel The ball charge of a SAG mill is about 29 to 30 By friction and influence of tumbling balls inside rotating cylinder grinds the raw material to the required fineness
Jun 19 2014 · The ball mill is extremely efficient for secondary grinding after crushing The ball mill can grind all kinds of ores and other hard materials Additionally both primary and secondary grinding with a ball mill can be applied in a variety of industries Reliable And Easy For Operation
Ball Mill Liners We are regularly supplying rubber liners up to 26 ft diameter ball mills Secondary and Tertiary Ball Mills In many cases rubber components are best suited for specific areas in AG and SAG mills Learn more PolyWIP Pulp Lifters PolyWIP lifter inserts increase the life of premature worn steel pulp lifters
With more than 100 years of experience in ball mill technology Metso’s ball mills are designed for long life and minimum maintenance They grind ores and other materials typically to 35 mesh or finer in a variety of applications both in open or closed circuits Reliability and expertise
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The ball mill is a key piece of equipment for grinding crushed materials and it is widely used in production lines for powders such as cement silicates refractory material fertilizer glass ceramics etc as well as for ore dressing of both ferrous and nonferrous metals
Ball end mills are used for drilling shallow holes slotting a channel where a flat bottom is not required or most commonly used to produce multidimensional contours in molds or dies The design of ball end mills forms a hemispherical cutting action identical to the diameter of the tool Because of the shapes required in these products it’s common that multi axis machining
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