The 1st ever built rod mill (2 m in diameter by 4 m long) was to be installed at a mine where a coarser feed was required for shaking tables. Crushing rolls and rod mills were eventually used commonly to prepare feed to shaking tables. Later, rod mills of 2.9 m in diameter by 3.9 m long replaced most roll crushers.

Live ChatThe mill lengths are more or less guided by the length of rods. The maximum rod length conveniently used is about 6.6 m. The lengths of the rods are about 100150 mm shorter than the inside mill length. Data from Rowland [1] indicate that the lengthtodiameter ratio of mills ranges from 1.2 to 2.3.

Live ChatRod mills are very similar to ball mills, except they use long rods for grinding media. The rods grind the ore by tumbling within the the mill, similar to the grinding balls in a ball mill. To prevent the conditions leading to rod charge tangling, the length to diameter ratio is maintained at 1.4 to 1.6.

Live ChatThe mill product can either be finished size ready for processing, or an intermediate size ready for final grinding in a rod mill, ball mill or pebble mill. AG/SAG mills can accomplish the same size reduction work as two or three stages of crushing and screening, a rod mill, and some or all of the work of a ball mill.

Live ChatWhen a classifier is working in closed circuit with a ball or rod mill, it is usually possible to arrange their relative positions so that the discharge of the mill flows to the feed trough of the classifier while the oversize that is raked up the slope falls by gravity into the feed box of the mill

Live ChatWet Energysaving Rod Mill Xinhai. Suit to coarse grinding process, large capacity. Wet energysaving rod mill is often used to the coarse grinding of first opening grinding stage, the product particle size is 31mm, the capacity is larger than the same standard ball mill

Live ChatField installations show an average of less than 1 # per ton of sand ground as rod consumption, and from 0.08# to 0.10# per ton of sand ground as the steel liner wear. The overall cost of mill operation, exclusive of amortization, is generally less than 30c per ton (year 1958).

Live ChatThe standard units are of steel construction. Capacity depends on specific gravity of the material and range of size taken from each compartment. The 4x 4 has a capacity from 5 to 10 tons per compartment in 24 hours. The 8x 8 has a capacity from 20 to 50 tons per compartment in 24 hours.

Live ChatThe Rod Mill is the same as the Ball Mill in the construction and available to both of wet and dry processing. Unlike the Ball Mill, however, the Rod Mill uses rods instead of balls as the grinding medium. As a result, its uses are different from those with the Ball Mill.

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