Overflow VS Grate Discharge Ball or Mill Why Retrofit

The cost of a ball mill conversion from overflow to grate discharge is ‘fairly’ affordable at $65,000 for a 13′ x 15′ mill. This is only for the discharge head, grates and pulp filters (rubber). A comparison in laboratory of Overflow Discharge Ball Mill VS Grate Discharge Ball Mill.




  • Ceramic Ball Mill

    Ball Mill/Grate Ball Mill/Overflow Type Ball Mill/Rubber

    Shanghai MG is a young and dynamic factory exporting Grate Ball Mill,Overflow Type Ball Mill,Rubber Lined Ball Mill to the overseas market for small to medium customers.

  • Ceramic Ball Mill

    Horizontal Grinding Mill Overflow Type Gratedischarge

    The overflow type of Ball Mill is designed to overflow and discharge materials from the trunnion on the outlet side. By combining it with a mechanical classifier or wet-processing cyclone, you are able to extensively use this type for grinding in closed circuit or for special applications such as re-grinding …

  • Ceramic Ball Mill

    Grate Ball MillOverflow Type Ball MillBall Milling

    Mineral Ball Mill. It usually adopts wet type ball mill in the mineral production. The grate and overflow type ball mills are the most universal equipment in the mineral plant. The grate type is usually used in the first segment of the two stages, or place of discharging the rough ore. Porcelain Lined Ball Mill. Peanut shells are byproducts of ...

  • Ceramic Ball Mill

    Grate Type Of Ball Mill | Crusher Mills Cone Crusher Jaw

    Ball Mill/Grate Ball Mill/Overflow Type Ball Mill/Rubber … Shanghai MG is a young and dynamic factory exporting Grate Ball Mill,Overflow Type Ball Mill,Rubber Lined Ball Mill to the overseas market for small to medium customers.

  • Ceramic Ball Mill

    How a Grate Discharge Ball Mill Works

    Here I try to explain how ground slurry is discharged from a grate ball mill (or SAG). How it works is, the slurry flows across the grate as it would a screen panel. On the other side of the grate/screens are veins like a pump impeller. As the mill turns/rotates the slurry is “pumped” out and discharged. Discharge Grates The natural flexibility of rubber has allowed rubber manufacturers to ...

  • Ceramic Ball Mill

    Industrial Ball Mills for Sale

    Small 30″ BALL MILL. The shell is cast in one piece with a flange for bolting to the head. In converting the mill from a 30″x 18″ to a 30″x 36″ unit with double the capacity, it is only necessary to secure a second cast shell (a duplicate of the first) and bolt it to the original section.

  • Ceramic Ball Mill

    AMIT 135: Lesson 7 Ball Mills Circuits Mining Mill

    Ball Mill Design. A survey of Australian processing plants revealed a maximum ball mill diameter of 5.24 meters and length of 8.84 meters (Morrell, 1996). Autogenous mills range up to 12 meters in diameter. The length-to-diameter ratios in the previous table are for normal applications. For primary grinding, the ratio could vary between 1:1and 1.8:1.

  • Ceramic Ball Mill

    Scats production in overflow ball mill Grinding

    Scats production in overflow ball mill (13 replies) Other times, you need to enlarge the ball size diameter ie: using a 75 mm ball instead is 35 mm. Other times, you must control and reduce the feed size (crushing circuit product). Therefore, no, changing to a grate discharge ball mill from overflow would not improve the situation.

  • Ceramic Ball Mill

    Ball Mills

    Grate Discharge Ball Mill: This type of mill usually works with a high circulating load and thus produces very little extreme fines. The specific power consumption is therefore less than for an Overflow Mill. A Grate Discharge Mill will also have 15—25 % higher capacity per volume unit as compared with an Overflow Mill.

  • Ceramic Ball Mill

    Overflow Type Ball Mill

    1. The jack-up device of wet grate ball mill makes maintenance easy. 2. The hydrostatic and hydrodynamic bearings ensure the smooth operation of wet grate ball mill. 3. The low speed transmission of wet grate ball mill contributes to easy overhaul and maintenance. 4. The oil-mist lubrication device guarantees reliable performance of bearings. 5.

  • Ceramic Ball Mill

    AMIT 135: Lesson 7 Ball Mills Circuits Mining Mill

    For overflow ball mills, the charge should not exceed 45% of the mill volume . For grate discharge mills, the charge should occupy about 50% of the mill volume . Bond developed a relationship that can be used to determine the percent charge by volume as a function of the vertical height above the charge, He, and the radius of the mill, R, i.e.,

  • Ceramic Ball Mill

    Rubber Ball Mill Rubber Ball Mill Suppliers and

    Alibaba.com offers 4,848 rubber ball mill products. About 4% of these are toy balls, 3% are other fitness & bodybuilding products, and 1% are other rubber products. A wide variety of rubber ball mill options are available to you, such as skip ball, stress ball, and water ball.

  • Ceramic Ball Mill

    Grate Ball Mill/Grate Type Ball Mill/Grate Ball Milling

    The grate ball mill is roughly composed of the cylinder, cylinder liner,big gear ring, discharging grate,and ore feeding device. Except there is a discharging grate plate installed at the discharging end, all the other is similar with the overflow ball mill.

  • Ceramic Ball Mill

    JoyalBall MillBall Mill For SalesBall Mill Manufacturer

    The Ball mill can be divided into lattice type and overflow type according to different beneficiation methods, and this machine is two lattice-type ball mill. The materials from the feeding fittings enter the first bin of the milling machine via the feeding hollow axis evenly when it works.

  • Ceramic Ball Mill

    Scats production in overflow ball mill Grinding

    Therefore, no, changing to a grate discharge ball mill from overflow would not improve the situation. It would only cause the grates to pull with unground oversized rock chips/scats. I hope others here can complement this answer.

  • Ceramic Ball Mill

    Metso Ball Mills

    Ball mills designed for long life and minimum maintenance Metso overflow ball mill sizes range from 5 ft. x 8 ft. with 75 HP to 30’ x 41’ . and as much as 30,000 HP. Larger ball mills are available with dual pinion or ring motor drives. Our mills incorporate many of the qualities which have made the Marcy name famous since 1913.

  • Ceramic Ball Mill

    Ball mill Wikipedia

    The ball mill can grind various ores and other materials either wet or dry. There are two kinds of ball mill, grate type and overfall type due to different ways of discharging material. Many types of grinding media are suitable for use in a ball mill, each material having its own specific properties and advantages.

  • Ceramic Ball Mill

    New and Used Ball Mills for Sale | Ball Mill Supplier

    Ball Mills. The ball mill grind various ores and other materials either wet or dry. There are two kinds of ball mill, grate type and overfall type due to different ways of discharging material. There are many types of grinding media suitable for use in a ball mill, including ceramic …

  • Ceramic Ball Mill

    GRINDING MILLSBALL MILLSNew Used Mining Mineral

    We can also buy surplus ball mills or sell on a consignment basis. From small Lab and Pilot Batch Mills to large Ball Mills, we source mills to suit your needs manufactured by Denver, Nordberg, Allis Chalmers, Polysius, FLSMidth, Dominion, Hardinge, Metso, and more. A ball mill is a cylindrical device used in grinding (or mixing) materials like ...

  • Ceramic Ball Mill

    Overflow Type Ball Mill

    After a period, the client found the production didn’t reach the standard, and the equipment had a serious consumption, so the client adopted Xinhai wet overflow ball mill. The pulp of Xinhai wet overflow ball mill overflow automatically, without forced discharge, which reduces the equipment wear and energy consumption, the discharging particle size is small, the qualified rate of grind size is improved, at the …

  • Ceramic Ball Mill

    AMIT 135: Lesson 6 Grinding Circuit Mining Mill Operator

    AG/SAG 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. Because of the range of mill sizes available, AG/SAG milling can often be accomplished with fewer lines than in a conventional rod mill/ball mill circuit.

  • Ceramic Ball Mill

    Grate Type Of Ball Mill | Crusher Mills Cone Crusher Jaw

    Ball Mill/Grate Ball Mill/Overflow Type Ball Mill/Rubber …. Shanghai MG is a young and dynamic factory exporting Grate Ball Mill,Overflow Type Ball Mill,Rubber Lined Ball Mill to the overseas market for small to medium customers.

  • Ceramic Ball Mill

    Overflow Type Ball Mill/Overflow Ball Mill/Overflow Type

    As the grinded material get discharged by overflow from the neck, the mill is called overflow type ball mill, a widely used ball mill. The structure of overflow type is basically the same with the grate one, only with no material discharging grate in the cylinder outlet end.