Home / specs of sag mill balls

### Gold Fields Granny Smith Grinding Circuit: A Metallurgist ...

and 120 mm and the SAG mill slowed down and charged with a 7% (by volume, v/v) load of 125 mm balls. The smaller diameter CAVEX 400 cyclones produced an overflow P80 size of 90 µm to 120 µm. The

### Equipment Specification Sheet: SAG Mill

Equipment Specification Sheet: SAG Mill Specific Gravity 3.6 tonnes/m3 Ball Mill Work Index 11.1 metric @ P 80 88 µm Primary Grind P 80 43 µm Production Rate 181.2 tonnes/hour Rod Mill Work Index 8.6 metric Ball Mill Work Index 12.2 metric Feed to SAG Mill 80% passing 150 mm Product from SAG Mill 80% passing 1000 µm SAG Mill Pinion Power 1155 kW

Get Price### china sag mill liner - Foreign Trade Online

Multotec SAG Mill Liners rubber composite lining components with the Hardox or casting inserts providing impact and wear resistance. Sag Mill Liner in Chengde City, Chengde Chengde Rongmao Cast Steel Co.,Ltd - Exporter and Manufacturer of Sag Mill Liner in Chengde City, Chengde, Hebei, China. Get deals on Sag Mill Li... ball mill liner for sag ...

Get Price### 36'' X 20.5'' , Sag Mill, 20000 Hp, Unused Ball, Pebble ...

SAG Mill, 36'' diameter X 20.5 long (11m X 6.2m). Manufactured by in 2007, Unused and never installed. Complete with ABB 15,000 KW (20,115 HP), 10,000 V, 50 Hz gearless drive, control room, and transformers. Nominal rating of 1625 tons per hour (13 MTPA). Components are in original crates and inspected and maintained yearly.

Get Price### sag mill ball charge

• SAG Mill Steel Charge Estimation tool provides an estimate of the percent steel in the charge of your SAG mill based on the power draw and the total charge volume. • Ball impact energy chart to determine the impact energy of balls as a function of mill diameters.

Get Price### The operating principle of the ball mill

In filling mill by grinding balls on 40 – 50% and non-smooth liner, the outer layers slip is virtually absent, but the sliding of the inner layers one on another observed in various modes of operation mill. In a monolayer filling mill by grinding media, they rotate around their axis parallel to the drum axis of rotation.

Get Price### GRINDING MILLS-SAG MILLS-New & Used Mining & Mineral ...

SAG mills are essentially autogenous mills, but utilize grinding balls in addition to large rocks to aid in grinding. A SAG mill is generally used as a primary or first stage grinding solution. SAG mills are used at gold, copper and platinum mines with applications also .

Get Price### Used Process-plants For Sale

Components of 2900 TPD Copper Zinc Plant, including SAG Mill, (3) Ball Mills, Larox Pressure Filter, Various Flotation, Feeders, Pumps, etc.

Get Price### China Forged Grinding Balls manufacturer, Sag Mill Balls ...

Forged Grinding Steel Balls 20mm-40mm for Regrinding in The Ball Mill Forged Steel Balls 125mm for SAG Mill Ultra Hardness Grinding Steel Rods for Metal Mines, Silca Sand, Chemical Industries

Get Price### SAG/Ball Mill Optimization | KnowledgeScape

Even though production was dramatically improved, the product size of the secondary ball milling was reduced and recovery increased. The results in SAG-Mill line 2 are even more dramatic. Because of segregation on the coarse feed stockpile, SAG-mill 2 receives a higher percentage of coarse material.

Get Price### How to Make a Ball Mill: 12 Steps (with Pictures) - wikiHow

Mar 29, 2019· How to Make a Ball Mill. Ball mills are a special instrument used to break up hard solids into a fine powder. They are similar to rock tumblers in that the instrument is a rotating container filled with heavy balls to grind the substance...

Get Price### Increasing Productivity Without Capital Expenditure

The SAG mill charge estimator combines the SAG mill mass balance, Morrel‟s C model for power draw, and a nonlinear liner wear function as to calculate the power and weight, the total charge/volume, the ball/charge, and the shoulder/toe angles for the mill. The SAG mass balance is based upon Epstein‟s

Get Price### A Method to Determine the Ball Filling, in Miduk Copper ...

After SAG mill, a trommel screen produces two over and under size materials which the oversize part is circulated into SAG mill and undersize reports to hydrocyclone for further process. Ball filling identify was implemented in this work using mill`s load sampling and ball abrasion test.

Get Price### Energy Saving Ball mill,Ball grinder,Ball grinding mill ...

Ball mill grinding machine is a kind of horizontal drum-type grinding mill with external gear and double bins. Materials goes evenly through quill shaft in feeding device into the first bin, which has ladder lining or ripple lining with steel balls in different specifications.Steel balls are taken to a certain height by centrifugal force from drum rotation and then fall.

Get Price### Used Mining Equipment | SAG Mills

SAG MILL 6.1 m DIA X 6.56 m L (F/F) (20 FT DIA X 21.51 FT L) x 3500 kW Drive (New Build Machine) SAG MILL 6.1 m DIA X 6.56 m L (F/F) (20 FT DIA X 21.51 FT L) x 3500 kW Drive (New Build Machine) 3500...

Get Price### Allis Chalmers 13'' x 21'' ball mill, 2000 HP - Machinery ...

Ball Mill, 13'' Diameter X 21'' Long, Manufactured By Allis Chalmers (Svedala), Rubber-Lined Mill, With Siemens-Allis 2,000 Hp, 4000 Volt, 200 Rpm Synchronous Motor, Eaton Airflex Clutch. Includes Trommel Discharge, Ball Mill Rejects Conveyor, Lube System, Etc. Offered Complete With Controls.

Get Price### SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING .

The diameter of the trommel for the 34-foot mill is 13.5 feet and the screen surface length is almost 13 feet. This gives us about 550 square feet of screen area, for roughly 30,000 tons a day or 1,300 tons an hour. These trommels were the first of their size for the tonnage handled.

Get Price### A Method of C alculating Autogenous/ Semi-Autogenous ...

mills with the rod mill and ball mill laboratory work indices. Note, in Figure. 1, that the rod mill product slope is less than 0.5 due to an extra amount of nes present being ﬁ ﬁ ner than 650 μm. These ﬁ nes proceed to the ball mill improving the ball mill efﬁ ciency. Also, the plotted rod mill P80 value, as shown in Figure 1, is 2900 μm.

Get Price### CASE STUDY: PROMINENT HILL - Outotec

SAG mill. However, following inspection, the scope of works was extended to include replacement of all the shell plates, along with the discharge end outer grates. The Ø24'' ball mill also required feed end outer and inner plates, as well as shell and discharge plates, to be replaced. PROCESS. A team of 56 specialised personnel

Get Price### Sag Mill Grinding Ball on sales - Quality Sag Mill ...

Forged cast ball mill steel balls high chrome cylpebs low chrome cylpebs Sag Mill Grinding Ball For Ball Mill Chemical Elements( Below is common used type all over the world,if you have any other different ...

Get Price### sag mill ball charing feeder utah

SAG is an acronym for Semi-Autogenous Grinding. SAG mills are autogenous mills but 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%. The largest SAG mill is 42'' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor.

Get Price### SAG Mill - Mining engineering - Eng-Tips

Jun 01, 2005· I work at a copper mine that has a SAG mill with 5" balls. When we go in the mill for liner inspections, you can feel balls exploding underneath your feet. Last year my boss got cut in the ear by one. I always thought that the balls exploded due to the internal stress generated by the outside cooling (and shrinking) faster than the inside.

Get Price### Modelling SAG milling power and specific energy ...

Scw = solid concentration by weight fraction in the SAG mill feed; Jb = balls charge (bulk fraction of the SAG mill volume); N/Nc = fraction of the SAG mill critical speed; Pc = SAG mill power consumption (kW); % 6 00 +1 00 = % of the fresh feed in the size range 152 +25 mm.

Get Price### Tube Mill Internals, Shell Liners for Cement Mills

To see how AIAE/VEGA Industries'' liners could improve your efficiency and for a free copy of the product specifications and applications, please contact your regional representative. For information on other cost-saving products from AIAE/VEGA Industries'' please return to our Cement Industries page.

Get Price### Autogenous and Semi-Autogenous Mills - ScienceDirect

The SAG mill had a 6–8% ball charge and the power consumption was 8 kWh/t, which agreed well with the expected value. 9.6. Problems. 9.1. In an SAG mill the dimensions of the mill were 9.75 m × 3.5 m and the specific gravities of the mineral and that of the balls charged were 4.1 and 7.9, respectively.

Get Price### Milling Machine: What is a Autogenous Mill? - Quora

Answer Wiki. A SAG mill uses the same properties as an AG mill but with the addition of steel balls can handle more homogenous ore hardness and achieve the desired grind size faster, allowing more throughput, and hence a lower ore feed grade in the circumstance that grinding is .

Get Price### How To Convert A Sag Mill To A Ball Mill

How To Convert A Sag Mill To A Ball Mill. How to Convert a SAG Mill to a Ball Mill A ball mill and a semiautogenous grinding SAG mill are similar in that both are industrial machines for grinding up a substance unto uniform piec Both use a rotating drum with steel balls to break Get Price

Get Price### Mill Operators'' Conference 2018

semi-autogenous (SAG) mill and two ball mills, each with 13 megawatts (MW) of installed power, was expected to be SAG mill limited when treating competent basement rock. Ausenco Services Pty Ltd (Ausenco), was engaged to help optimise and enhance the productivity of the Phu Kham comminution circuit over an eight-month period.

Get Price### Ball Mill - an overview | ScienceDirect Topics

Ball Mills. The ball mill accepts the SAG or AG mill product. Ball mills give a controlled final grind and produce flotation feed of a uniform size. Ball mills tumble iron or steel balls with the ore. The balls are initially 5–10 cm diameter but gradually wear away as grinding of the ore proceeds.

### SAG mill ball charge determination and its influence on ...

SAG mill ball charge determination and its influence on mill drive requirements Abstract: In semi-autogenous grinding (SAG), the grinding mill inventory, (i.e. volume of total charge, volume of ball charge, etc.) is important in determining the optimum operating condition for maximum production (tph), minimum specific energy (kwh/t) or lowest ...

Get Price### ball mill diaphragm sag mill difference | Solution for ore ...

The ball mill consists of standard modules that can be configured for capacity, plant layout and end-product specifications. Ball mill – Patent # 6752338 – PatentGenius A pilot plant scale SAG mill suitable for use in design of a commercial scale SAG mill.

Get Price### Sag Mill Liner Bolts | Products & Suppliers | Engineering360

Find Sag Mill Liner Bolts related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of Sag Mill Liner Bolts information.

### STARTLING EFFECT OF BALL SCATS REMOVAL ON SAG .

= 0.5) mill, typical of the majority of SAG mills in the South African gold mining industry. These are locally known as run-of-mine, RoM, mills. The mill is operated at 90% of critical speed and with a volumetric load of 40%. Unlike the majority of RoM mills, it is in closed circuit with a

Get Price