### What is the difference between a SAG mill and ball mill?

SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. [6] [7] The largest SAG mill is 42′ (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor. [8]

More### Autogenous and Semi-Autogenous Mills FLSmidth

Rely on our proven track record of SAG and AG Mill superiority. Since the early 1980s, we have been designing and manufacturing Semi-Autogenous (SAG) and Autogenous (AG) Grinding Mills under the Fuller-Traylor brand. Semi-autogenous grinding uses a minimal ball charge in the range of 6-15% while autogenous grinding uses ore only.

More### Difference Between Sag Mill vs Ball Mill - mech4study

12-10-2017 SAG mill make use of steel balls included with some large and hard rocks for grinding. These mills utilize the balls in making the large fragments of materials broken into pieces. The ball charge of a SAG mill is about 9% to 20%.This process takes place inside the large rotating drum of SAG mill which is filled with balls partially.

More### What's the Difference Between SAG Mill and Ball Mill ...

26-11-2019 The biggest characteristic of the sag mill is that the crushing ratio is large. The particle size of the materials to be ground is 300 ~ 400mm, sometimes even larger, and the minimum particle size of the materials to be discharged can reach 0.1 mm. The calculation shows that the crushing ratio can reach 3000 ~ 4000, while the ball mill’s ...

More### SAG Mill Grinding Circuit Design - 911metallurgist

06-06-2016 AG mills (or SAG mills with low ball charges) are often used in single-stage grinding applications. Based on their higher throughput and coarser grind relative to AG mills, it is more common for SAG mills to he used as the primary stage of grinding, followed by a second stage of milling. AG/SAG circuits producing a fine grind (particularly ...

More### GRINDING MILLS – BALL Mills, SAG Mills, AG ... - Harcliff

GRINDING MILLS – BALL Mills, SAG Mills, AG Mills ROD Mills. We refurbish, design and manufacture an extensive range of high-quality mills and mill components to exacting standards, offering you a turnkey service that’s backed by two decades of engineering expertise. BROCHURE. Finite Element Analysis (FEA) Ball Charge Trajectory Modelling ...

More### SAG Mills and Ball Mills - YouTube

2 parallel SAG Mills each feeding 2 parallel Ball Mills (4 total). Around 50,000 TPD total grinding circuit capacity.

More### SAG Mill - Mining engineering - Eng-Tips

01-06-2005 Anyway, SAG mills can be calculated as inefficient, except they do not require a large grinding load like ball and rod mills. Capital and operating costs have to be compared, system vs. system in order to assist with the selection. The feed suitability vis-a-vis the grind method is critical.

More### ARE SAG MILLS LOSING MARKET CONFIDENCE?

Axb values less than 30. A single SABC line was selected for the grinding circuit, with the SAG mill motor rated at 13.4 MW and two ball mills each powered by a 7 MW motor. The plant ramp-up period started in 2006 and in 2009 the design throughput was yet to be achieved. The reported contributing factors were reported as:

More### Grinding Circuit Overload - Grinding Classification ...

My company using ball mill as the second stage of grinding usually experiences high mill mass. we are therefore forced to grind out in order to reduce the mill mass. We also experience excessive overflow of materials/feed entering the ball mill from the feed launder. What could be the causes o

More### ONLINE SAG MILL PULSE MEASUREMENT AND OPTIMIZATION

ONLINE SAG MILL PULSE MEASUREMENT AND OPTIMIZATION SEMI ... An instrumented grinding ball, which is capable of surviving a few hours and transmitting the impacts it experiences, ... Figure 3.1 Force-time analysis for a steel ball of diameter 1.6 inch impacting from a

More### China B2 Material Dia. 1"-6" Bolas/Balls De Acero

Forged Steel Ball, Grinding Ball, Grinding Media manufacturer / supplier in China, offering B2 Material Dia. 1"-6" Bolas/Balls De Acero Forjadas PARA Molinos, 20-160mm Forged Grinding Steel Ball for Mining Ball Mill with Low Wear Rate, 80mm Grinding Steel Ball for Ball Mill

More### Sag mill ball price, 2021 sag mill ball price ...

sag mill ball price - Select 2021 high quality sag mill ball price products in best price from certified Chinese Ball Wheel Caster manufacturers, Grinding Media Steel Ball suppliers, wholesalers and factory on Made-in-China

More### ONLINE SAG MILL PULSE MEASUREMENT AND OPTIMIZATION

ONLINE SAG MILL PULSE MEASUREMENT AND OPTIMIZATION FINAL REPORT Reporting period starting date June 24, ... instrumented grinding ball offers the ability to qualitatively observe and optimize the ... FIGURE 6.3 COMPARISON OF FORCE PROFILES WHEN A 1.6-INCH BALL WAS DROPPED FROM 7-INCH HEIGHT ON THE UFLC AND THE LOAD CELL PACKAGE ...

More### Model:El Soldado SS SAG - SAGMILLING.COM

The El Soldado SAG mill operates in open circuit where pebbles are rejected to a different grinding line (of crushers with single-stage ball milling). The calibration parameters are different than Amelunxen, 2014: a 7% lower value for the coefficient (5.494 versus 5.9 in Amelunxen), and a slightly different exponent (0.563 versus 0.55 in Amelunxen).

More### Benchmarking: Bond - Boddington - SAGMILLING.COM

Ball mill model: Use the Nordberg wet overflow ball mill model; Quantity 4; Mill dimensions, diameter 26 ft, EGL 44 ft; motor mechanical efficiency 0.97; motor efficiency to DCS 0.96; Assume 6 inch liner thickness, 7.80 t/m 3 ball density.; To achieve 14 MW at DCS, assume speed is 73% of critical and load is 23 % v/v (mills are fixed speed, unable to find speed in literature; load is low, but ...

More### Model:Amelunxen SGI - SAGMILLING.COM

Of interest is this single-stage SAG mill uses SGI to predict grinding down to about 200 µm with no need for a ball mill work index. The Single Stage SAG model in SAGMILLING.COM uses Amelunxen's form of the equations as it is not normal to reject pebbles the way it is done at El Soldado.

More### Sell Top Size Ball for SAG Mill Processing(id:13140668) -

Sell Top Size Ball for SAG Mill Processing(id:13140668), China manufacturer, supplier, exporter, Shandong Huamin Steel Ball Company. Source for big diameter ball, grinding ball, top size ball here.

More### (PDF) Optimisation of the Sossego SAG mill Mauricio ...

Targeted SAG Mill Feed Size Distribution Product P80, mm 0.044 Specific regrinding energy, kWh/t 15.7 (Sequeirinho); 11.9 (Sossego) Grinding media Steel balls 1 Ore characteristics Bond Ball Mill WI, kWh/t 16.0 JK DWT (A*b) 33 Bond Abrasion Index 0.48 1.

More### Benchmarking: Bond - Esperanza - SAGMILLING.COM

Benchmarking: Bond/Barratt SAG Mill Specific Energy Consumption - Esperanza. Villanueva, F. and Soto, L., SEC and the impact on a mills selection for DMC project.Proceedings of the XXVII International Mineral Processing Congress, October 2014, Santiago, Chile.

More### China B2 Material Dia. 1"-6" Bolas/Balls De Acero

Forged Steel Ball, Grinding Ball, Grinding Media manufacturer / supplier in China, offering B2 Material Dia. 1"-6" Bolas/Balls De Acero Forjadas PARA Molinos, 20-160mm Forged Grinding Steel Ball for Mining Ball Mill with Low Wear Rate, 80mm Grinding Steel Ball for Ball Mill

More### China Forged Steel Grinding Ball for Mining - China Ball ...

Grind, Ball Mill, Mining, Cement Plant, Sag Mill: Processing Type: Forging, Rolling, Casting: Size: 20mm-150mm: Color: ... 60Mn Material Dia. 1"-6" Bolas/Balls De Acero Forjadas PARA Molinos US $650-680 / Ton. 10mm-200mm Forging Grinding Steel Ball for Ball Mills ...

More### Model:El Soldado SS SAG - SAGMILLING.COM

The El Soldado SAG mill operates in open circuit where pebbles are rejected to a different grinding line (of crushers with single-stage ball milling). The calibration parameters are different than Amelunxen, 2014: a 7% lower value for the coefficient (5.494 versus 5.9 in Amelunxen), and a slightly different exponent (0.563 versus 0.55 in Amelunxen).

More### Benchmarking: Morrell Mih - Tropicana -

ball mill drawing about 14 MW (assumed DCS, works out to 13.0 MW at mill shell) E ball = 16.77 kWh/t at shell (18.2 kWh/t at DCS) Modelling. Use the Morrell SMC HPGR and ball mill circuit model with the HPGR-BM flowsheet.

More### (PDF) Optimisation of the Sossego SAG mill Mauricio ...

Targeted SAG Mill Feed Size Distribution Product P80, mm 0.044 Specific regrinding energy, kWh/t 15.7 (Sequeirinho); 11.9 (Sossego) Grinding media Steel balls 1 Ore characteristics Bond Ball Mill WI, kWh/t 16.0 JK DWT (A*b) 33 Bond Abrasion Index 0.48 1.

More### Sell Top Size Ball for SAG Mill Processing(id:13140668) -

Sell Top Size Ball for SAG Mill Processing(id:13140668), China manufacturer, supplier, exporter, Shandong Huamin Steel Ball Company. Source for big diameter ball, grinding ball, top size ball here.

More### Major Mines Projects Gibraltar Mine

SAG mill discharge is screened with the oversize returning via conveyor belt to the feed of the mill. Undersize material, consisting of 0.5 inch minus, is then pumped to a distributor where six 13.5 foot diameter, 2500 Hp ball mills are operated in closed circuit with hydrocyclones to produce a minus 350 micron product used to feed the flotation circuit.

More### Benchmarking: Bond - Esperanza - SAGMILLING.COM

Benchmarking: Bond/Barratt SAG Mill Specific Energy Consumption - Esperanza. Villanueva, F. and Soto, L., SEC and the impact on a mills selection for DMC project.Proceedings of the XXVII International Mineral Processing Congress, October 2014, Santiago, Chile.

More### EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL

Considering that worn balls in an industrial mill charge constitute about 15 to 40 percent and that the highest difference in breakage rate observed being nine percent for purely one shape charge; it is very doubtful whether it is worthwhile in attempting to develop techniques for removing worn balls from the mill.

More### Steel Ball – DAEKWANG

We offer value for our customers through our quality grinding ball products, professional service and dependable delivery. We have been supplying high chrome grinding balls, forged grinding balls, grinding rods, cylpebs and ball mill wear parts to serve the cement, mineral processing, power plant, chemical and other industries.

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