You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

####
33 KiB

33 KiB

```
sbm animination of sag mill operationAutogenous mills,semi autogenous mills and ball mills for, Autogenous mills,semi autogenous mills and ball mills for wet grinding A company of Polysius ThyssenKrupp Technologies tk 2 High performance systems for wet grinding applications The comprehensive range of wet grinding,SAG mill Synchronous motor drive with air clutch SAG MILL OPERATIONS IN SOSSEGO MINEpdf scribd SAG mill circulating load with bimodal distribution as a function of ore with smaller Bond Work Index Energy Consumption There is a relationship of SAG motor specific power and mill throughput (see Figure 10) since for the same SAG mill throughput there is a distinct energy consumption00 130 17500 19000 17000 1850 SAGwise™ total process control The key to efficient SAG. The key to efficient SAG mill operation.Maximising your SAG mill's performance Semi Autogenous (SAG) mills represent a major portion of the comminution taking place in the processing plant and are by far the largest consumer of power,making their optimisation paramount. FLSmidth on YouTube cementflsmidth ATOX® raw mill This film demonstrates all aspects of the FLSmidth ATOX® raw mill: how it saves space and energy and why it has been proven to deliver reliable operation for crushing and grinding all, Autogenous and Semi Autogenous Mills 2 AG AG Mills AG AG Mills 3 Metso’s AG SAG mills accomplish the same size reduction work as 2 or 3 stages of crushing and screening The feed size for these mills is limited to the maximum size that can be practically conveyed and introduced into the large mill feed chutes.And the TECHNICAL NOTES 8 GRINDING R.P.King LG A mill power equation for SAG mills.Minerals and Metallurgical Processing.Feb 1990 pp 62.Gross power No load power Net power drawn by the charge (8.13) The net power is calculated from Net power KD2.5L e! c. Watts (8.14) In equation 8.14,D is the diameter inside the mill liners and Le is the effective length of the mill including the. SAGMILLINGCOM : Home Sagmilling is home to a collection of both free and subscription based calculation tools to aid metallurgical process engineers perform comminution calculations Grinding circuit design tools,including for SAG mill ball mill circuits,and geometallurgy energy models are available to subscribers YANACOCHA GOLD SINGLE STAGE SAG MILL DESIGN. 2 OPTIMISATION OF THE SINGLE STAGE SAG MILL CIRCUIT AT THE YANACOCHA GOLD MILL ABSTRACT This paper describes the design,the first three years of operation. 15 Different Types of Milling Machine Operations Images. The plain milling is the most common types of milling machine operations.Plain milling is performed to produce a plain,flat,horizontal surface parallel to the axis of rotation of a plain milling cutter.The operation is also known as slab milling.To perform the operation,the work and the cutter are secured properly on the machine. Applying grindcurves to mill operation and optimisation SAG mill based on simulations conducted by Morrell (Powell et al,2001) for a range of ore hardness,AG SAG operation,open circuit (oc) and closed circuit (cc) operation Autogenous and Semiautogenous mills Metso AG SAG mills can accomplish the same size reduction work as two or stages of crushing and screening,a rod mill,and some or all of the work done by a ball mill All because of the range of mill sizes available,AG SAG milling extends itself to many applications Grinding mills Every mining operation has a unique grinding process.Metso has experience of over 8,000 grinding mills globally,including manufacturing and delivering the largest SAG AG mills in the world.Our experts welcome the opportunity to assist you with circuit and circuit control design as well as start up,operation,an Optimization of mill performance by using SAIMM about the mill operation is vital An innovative tool which can deliver information about in mill dynamics has been developed by Magotteaux It can provide online and accurate measurements of the degree of grinding ball fill and pulp position for timely decision making and, Video Of Sag Mill Operation cz eueu mode of operation of sag mill animation gcpekerala SAG mill operation is more dynamic,This video was made for the SAG Conference,in which a company wanted to show a visual walkthrough of the SAG mill,Get Price And Support Online; sag mill operation procedure Grinding Mill China (PDF) Understanding the effects of liner wear on SAG mill. As of 2010,in the world mining industry,about 200 large mills of full or partial SAG were in operation,including about 100 of them working in the iron ore industry,30 in copper,while others. Mill (grinding) 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%.The largest SAG mill is 42' (12.8m) in diameter,powered by a 28 MW (38,000 HP) motor. A Publication of the Lubrication Engineers Technical, In semi autogenous (SAG) mills and AG (autogenous) mills,both of which are popular in mineral processing,larger rocks are used to crush themselves,if a ball mill or SAG mill is out of operation for one hour at a Chilean Copper Mine,it costs the mine $200,000 or $300,000 USD,respectively Model Predictive Control for SAG Milling in Minerals, Given these challenges,the objectives for acceptable SAG mill operation are: • maintain a stable process at high throughput for power efficiency • grind to a target size specification and distribution for downstream recovery efficiency SAG Mill with Ball Mill on either side Ball Mill Operation Grinding Circuit Startup & Shutdown. Ball Mill and Grinding Circuit Preparation for Start UP The following items must be checked before the equipment in the Grinding Circuit is started.Check the ore slot feeder for obstruction or hang—ups.Check the ball mill belt feeder for undue buildup of material.Check oil level in ball mill lube oil tanks.Also,check grease level in the mill ring gear spray lube drum. OPERATIONAL OPTIMIZATION OF AG SAG SHORT … OPERATIONAL OPTIMIZATION OF AG SAG MILLING CIRCUITS SHORT COURSE Instructor: Sanjeeva Latchireddi,PhD Dr.Sanjeeva Latchireddi is the Director of EE Mill Solutions (Energy Efficient Milling Solutions) and Adjunct Professor with Dept of Metallurgical Eng.University of Utah,Salt Lake City.Sanjeeva has Palm Kernel Expeller For Oil Production In Ethiopia … Palm Kernel Expeller For Oil Production In Ethiopia Palm Oil Of Philippines Grinding Circuit Intellisense.io The Grinding Circuit optimization Application is the first technology to accurately predict critical SAG Mill performance variables.It then correlates this data to give an accurate picture of conditions inside the mill.This allows mines to reduce downtime in operations by reducing scheduled liner wear inspections and unnecessary changes. SAG Mill Optimization using Model Predictive Control exhibits many of these aspects.Maintaining the SAG mill weight at the optimum value is critical for achieving maximum grind rate efficiency and mill production (Powell,M.S.van der Westhuizen,A.P.& Mainza,A.N.2009).However,SAG mill weight is difficult to control as the dynamic response changes as the mill approaches maximum capacity. Mining Industry: What is the difference of ball mill, The impact can be rock on rock such as in an Autogenous Grinding (AG) mill,rock and a small ball charge (~10%),used in Semi Autogenous Grinding (SAG) mills,balls of various sizes in Ball Mills and less commonly these days,steel rods in Rod Mills Ball Mill Simulation and Analysis on Vimeo Apr 26,2018 · Ball Mill Simulation and Analysis.from EDEM PRO.2 years ago.This video shows the inside of a Semi Autogenous Grinding (SAG) mill,a key machine for grinding crushed materials in mining.Optimize your SAG Mill operation. YANACOCHA GOLD SINGLE STAGE SAG MILL DESIGN,… 2 OPTIMISATION OF THE SINGLE STAGE SAG MILL CIRCUIT AT THE YANACOCHA GOLD MILL ABSTRACT This paper describes the design,the first three years of operation and optimization of a large, SAG Mill Operation at Cortez: Evolution of Liner Design. 123 PAPER 9 SAG Mill Operation at Cortez: Evolution of Liner Design from Current to Future Operations Julius Stieger1,Process Superintendent Dave Plummer2,Process Maintenance Planner Sanjeeva Latchireddi3,Chief Process Engineer Raj K.Rajamani4,Professor M Ball Mill Trunnion Bearing Lube System On a 11’ 6” x 22’ 0” Ball Mill,the trunnion bearing lubrication system provides continuous low pressure flood oil for cooling and lubrication of the bearings,and high pressure oil for hydrostatic lift of the feed and discharge trunnions during start up of the mill.System monitors including pressure switches and flow monitors are provid video of sag mill operation eurobondin jaw crusher operation of a sag mill pdf jaw crusher operation of a sag mill pdf description PE series jaw crusher is usually used as primary crusher in quarry production lines,mineral ore crushing plants Difference Between Sag Mill vs Ball Mill · 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 Understanding Size Effects of Semi autogenous Grinding. Pax,R and Cornish,B,2016.Understanding Size Effects of Semi autogenous Grinding (SAG) Mill Operation as a Pathway to Solving Feed Disturbances Case Study using the MMG Century SAG Mill,in Proceedings 13th AusIMM Mill Operators' Conference 2016,pp 321 330 (The Australasian Institute of Mining and Metallurgy: Melbourne). SAG Mill Animation The more details you give on your situation,the better we can help you.Leave your phone number if you would like us to call you. OPTIMIZATION OF THE SAG MILL CIRCUIT AT KINROSS PARACATU. OPTIMIZATION OF THE SAG MILL CIRCUIT AT KINROSS PARACATU BRAZIL.(PTI) have reviewed and optimized th SAGMILLING.COM.:.Home Sagmilling.com is home to a collection of both free and subscription based calculation tools to aid metallurgical process engineers perform comminution calculations.Grinding circuit design tools,including for SAG mill ball mill circuits,and geometallurgy energy models are available to subscribers. SAG Mill Animation Mineral Processing & Metallurgy BUY Laboratory & Small Plant Process Equipment We have all the laboratory and plant equipment you need to test or build operate your plant SAG Mill Operation at Cortez: Evolution of Liner Design, The SAG mill is 26’ diameter x 12’3” EGL and powered by 4,500 HP motor driven by a variable speed LCI drive that can control the mill speed from 36% to 80% of critical speed depending on ore type and operational demands operation of sag mill BINQ Mining operation of sag mill Posted at:January 4,2013[ 48 3802 Ratings] Mill (grinding) Wikipedia,the free encyclopedia It is similar in operation to a SAG mill as described below but does not use steel balls in the mill Also known as ROM or "Run Of Mine" grinding,animation of autogenous mill in south africa Chapter 9 SOSSEGO SAG MILL 10 YEARS OF OPERATION AND OPTIMIZATIONS, Figure 4 Improvements in SAG mill liners Figure 5 illustrates the increase in processed mass for different sets of SAG mill liner and the resulting reduction in the number of failur TECHNICAL NOTES 8 GRINDING R.P.King LG A mill power equation for SAG mills.Minerals and Metallurgical Processing.Feb 1990 pp57 62.Gross power No load power Net power drawn by the charge (8.13) The net power is calculated from Net power KD2.5L e! c. Watts (8.14) In equation 8.14,D is the diameter inside the mill liners and Le is SAG Mill Flythrough on Vimeo Watch video· This video was made for the SAG Conference,in which a company wanted to show a visual walkthrough of the SAG mill,from the beginning of it's processes to, Rod mills,how they function The faster the mill speed,the greater the wear on the rods and liners.So,the general rule of thumb for rod mills is to operate no faster than the speed that will obtain the desired product size.The operation speed of rod mills is generally determined by the Peripheral Speed of the Inside of the mill. Throughput optimisation in milling circuits If the mill feed setpoint is changed,then the actual feed rate needs to stabilise at the new target in a short period of time.The feed rate setpoint can then be tied into a SAG mill power optimisation strategy.SAG mill discharge control is quite involved due to few interactive variables,such as mill discharge sump level,classification. JohnKocon Illustration & Animation Home A 3D animation that takes the viewer on an imagined trip through a Semi Autogenous Grinding (SAG) Mill.This animation was created for display in the company's booth at tradeshows worldwide.Following the 'First Hemi' illustration,Smithsonian commissioned me to create a piece of aviation art,that was made available through Air & Space. Seized Ac Compressor xinhai Seized Ac Compressor Mercedes Benz Compressor,Home A C Compressor Replacement Parts,Toyota a C Compressor,5 Ton A C Compressor,Vintage Air Compressor,Air Conditioner Compressor Unit,AC Compressor Oil,A C Condenser,How A C Compressor Work,Auto Air Conditioning Compressor,New a C Compressor,Inside of A C Compressor,How to Rebuild A C Compressor,York 210 Compressor,A … Grinding Mills 911Metallurgist Grinding in small plants,as in larger installations,has proven to be the most costly of all unit operations from both capital and operating standpoints.Therefore,grinding deserves the most scrutiny of all operations during the design procedure.A recent survey by a major grinding mill manufacturer reveals that more than 80 autogenous or semi autogenous mills having between 100 and 1,000. high capacity sag mill operation effective mineral sag, Source from Shanghai Zenith Minerals on high capacity sag mill operation effective mineral sag mill operation,The shovel is made of high manganese steel which is more durable and the blade can replace,grinding mill is the ideal powder making equipment in electric power industry,the contract to put into operation with less than a. (PDF) Understanding the effects of liner wear on SAG mill. As of 2010,in the world mining industry,about 200 large mills of full or partial SAG were in operation,including about 100 of them working in the iron ore industry,30 … PAI SAG Mill Training · We'll describe the general arrangement of a SAG mill,its principle of operation,and provide detailed descriptions of the major components and the role that each c SAG Ball Mill Optimization KnowledgeScape SAG Ball Mill Optimization,The results in SAG Mill line 2 are even more dramatic,The KnowledgeScape strategy’s ability to maintain smooth and stable operation of the mill was more apparent when contrasted to the DCS control on the “difficult” line The operating principle of the ball mill The operating principle of the ball mill consists of following steps.In a continuously operating ball mill,feed material fed through the central hole one of the caps into the drum and moves therealong,being exposed by grinding media.The material grinding occurs during impact falling grindin MILLING OPERATIONS TYPES OF MILLING MACHINES MILLING OPERATIONS Milling is the process of machining flat,curved,orMilling machines are basically classified as vertical or irregular surfaces by feeding the workpiece against a rotating horizontal.These machines are also classified as knee type,… Operation of SAG Mills,Principle Operation of Semi, Operation of SAG Mills The processing capability of a SAG mill is greatly affected by ore geology and operating variables within the mill The key issues broadly can be classified into two categories: field of breakage and charge motion,and flow through the grate and pulp lifters The field of breakage and charge motion are affected primarily. The operating principle of the ball mill The operating principle of the ball mill consists of following steps.In a continuously operating ball mill,feed material fed through the central hole one of the caps into the drum and moves therealong,being exposed by grinding media.The material grinding occurs during impact falling grinding balls and abrasion the particles between the balls. ball mill working principle · Great Wall ball grinding mill process ball grinding mill working principle 3D our website:www.greatwallcorporation.com ,www.great wall.co our email:sales@gw. CONGA: THE WORLD’S FIRST 42 FOOT DIAMETER 28 MW, SAG mill,40 ft,42 ft,gearless mill drive,GMD,SAG manufacture,reliability THE PROJECT The Conga Project is located in Peru adjacent to Newmont’s existing Yanacocha operations Grinding Mills Grinding in small plants,as in larger installations,has proven to be the most costly of all unit operations from both capital and operating standpoints.Therefore,grinding deserves the most scrutiny of all operations during the design procedure.A recent survey by a major grinding mill manufacturer reveals that more than 80 autogenous or semi autogenous mills having … sag mill rocker block 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%.The largest SAG mill is 42' (12.8m) in diameter,powered by a 28 MW (38,000 HP) motor. SAG Mill Feed The Beast Wiki The SAG Mill is a block added by the EnderIO mod A machine similar to a Pulverizer or a Macerator It is used to process resources to produce dust It accepts energy in the form of Redstone Flux or Minecraft Joule,with an internal buffer of 100,000 RF and consumption of 20 RF per tick BATU HIJAU MILL THROUGHPUT OPTIMIZATION: MILLING, The current SAG Mill operation is still rated 134 MW power at draw however has been operated at higher ball charges up to 18% and with 133 mm diameter grinding media Optimization and Control of a Primary SAG Mill Using Real. Optimization and Control of a Primary SAG Mill Using Real time Grind Measurement C.W Steyn*,K Keet**,W Breytenbach***.The WvalC SAG milling operation applies a similar control schema but with changes to the fuzzy logic.WvalC primary SAG mill grind curves ( USING THE SMC TEST® TO PREDICT COMMINUTION … USING THE SMC TEST® TO PREDICT COMMINUTION CIRCUIT PERFORMANCE INTRODUCTION As the SMC Test ® produces the JK parameter values A and b as well as estimates the JK parameter ta and crusher model energy matrices,the SMC Test ® can be used to conduct AG SAG mill and crus The operating principle of the ball mill Primo Pizza The operating principle of the ball mill consists of following steps.In a continuously operating ball mill,feed material fed through the central hole one of the caps into the drum and moves therealong,being exposed by grinding media.The material grinding occurs during impact falling grinding balls and abrasion the particles between the balls.Then,discharge of ground material performed. Optimization and Control of a Primary SAG Mill Using Real. Optimization and Control of a Primary SAG Mill Using Real time Grind Measurement C.W Steyn*,K Keet**,W Breytenbach***.The WvalC SAG milling operation applies a similar control schema but with changes to the fuzzy logic.WvalC primary SAG mill grind curves (Sep 2010 to Oct 2010) Hulbert (2006) warns that external factors might. Understanding Size Effects of Semi autogenous. AusIMM Pax,R and Cornish,B,2016.Understanding Size Effects of Semi autogenous Grinding (SAG) Mill Operation as a Pathway to Solving Feed Disturbances Case Study using the MMG Century SAG Mill,in Proceedings 13th AusIMM Mill Operators' Conference 2016,pp 321 330 (The Australasian Institute of Mining and Metallurgy: Melbourne). SAG Ball Mill Optimization KnowledgeScape 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.The KnowledgeScape strategy’s ability to maintain smooth and stable operation of the mill was more apparent when contrasted to the DCS control on the “difficult” line. Ball Mill Simulation and Analysis on Vimeo  · This video shows the inside of a Semi Autogenous Grinding (SAG) mill,a key machine for grinding crushed materials in mining.Optimize your SAG Mill operation using EDEM tools for analyzing the motion of rocks and balls,power consumption,wear and ball particle distribution through time. SOSSEGO SAG MILL Sossego mill was Vale’s first plant to operate a semi autogenous mill for processing copper and gold sulfide ore.The mill is located in Brazil.After the circuit commissioning,it was found out that certain variable Ball Mill Simulation and Analysis on Vimeo · This video shows the inside of a Semi Autogenous Grinding (SAG) mill,a key machine for grinding crushed materials in mining.Optimize your SAG Mill operation using EDEM tools for analyzing the … SAG Mill Optimization using Model Predictive Control Maintaining the SAG mill weight at the optimum value is critical for achieving maximum grind rate efficiency and mill production (Powell,MS,van der Westhuizen,AP,& Mainza,AN 2009) Autogenous and Semi Autogenous Mills FLSmidth Single stage SAG Mills are very beneficial in reducing CAPEX for plants with a staged throughput approach.When future tonnage is to be increased,the SAG Mill can feed downstream ball milling to boost capacity.Fuller Traylor SAG AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28,000 kW. Yanacocha Gold Single Stage SAG Mill Design,Operation. · This paper describes the design,the first three years of operation and optimization of a large,single stage SAG mill at Minera Yanacocha?s Gold Mill facility located in northern Peru.The Gold Mill was commissioned in March 2008 with a 32? x 32? EGL,16.5MW single stage SAG mill,to process 5 million tonnes per annum high grade oxide Au Ag ore. what is trouble shooting and remedy for sag mill operation Animination Of Sag Mill Operation totalspacein SAG mill operation is more dynamic,SAG Mill Grinding Circuit Design Previous Next what is trouble shooting and remedy for sag mill operation [More] what is trouble shooting and remedy for sag mill operation List of Milling Machine Operations [Complete Guide] The plain milling is the most common types of milling machine operations.Plain milling is performed to produce a plain,flat,horizontal surface parallel to the axis of rotation of a plain milling cutter.The operation is also known as slab milling.To perform the operation,the work and the cutter are secured properly on the machine. IsaMill Wikipedia The IsaMill is a stirred medium grinding mill,in which the grinding medium and the ore being ground are stirred rather than being subjected to the tumbling action of older high throughput mills (such as ball mills and rod mills).Stirred mills often consist of stirrers mounted on a rotating shaft located along the central axis of the mill. Selection of Comminution Circuits for Improved Efficiency • Single stage crush single stage SAG mills and two stage crush ball mill circuits are typically selected for low throughput plants (<50 t h) where personnel costs are a large component of costs.• SAB circuits are typically selected for plants of 0.5 to 2 Mt a. sag mill design and operation durbanlizardscoza Optimizing your SAG mill operation International Mining Mar 21,2007,Similar to the impeller design affecting pump capacity,the pulp lifter design affects the discharge capacity (or mill throughput) of AG and SAG,Contact US Ball mill sag mill shell Change · The film shows a mill shell change we completed in June July of this year.Old shell was 32' new one is 33'.For more information please visit www.fixedplant. TECHNICAL NOTES 8 GRINDING R P King Mineral Tech 8 3 Centrifugal force outward Fc mp& 2 Dm 2 (81) & is the angular velocity,mp is the mass of any particle (media or charge) in the mill and Dm is the diameter of the mill inside the liners Gravitational force Fg mpg (82) The particle will remain against the wall if these two forces are in balance ie Understanding Size Effects of Semi autogenous Grinding. Understanding Size Effects of Semi autogenous Grinding (SAG) Mill Operation as a Pathway to Solving Feed Disturbances Case Study using the MMG Century SAG Mill,in Proceedings 13th AusIMM Mill Operators' Conference 2016,pp 321 330 (The Australasian Institute. SAG Mill Process Control Underground mines are an example: the hoisting capacity of the mine shaft is the rate limiting step in the process,and the SAG mill must adapt to what the shaft can supply.So yes,there are situations where constant tonnage is appropriate; but most SAG mill operat Autogenous and Semi Autogenous Mills FLSmidth Your operation requires a SAG or AG Mill that is flexible,durable,cost efficient and tailored to your specific needs and use cases.That's why we offer a full product range from 4.3m to 12.2m in diameter with multiple SAG Mill Flythrough on Vimeo · This video was made for the SAG Conference,in which a company wanted to show a visual walkthrough of the SAG mill,from the beginning of it's processes to the end result.3 D rendering of SAG m sag mill trommel for iron ore Sag Mill Trommel For Iron Ore greenrevolution.sag mill trommel for iron ore Grinding Mill China.Trommel Magnet Protects SAG Mill Circuit Protecting.left to back up the trommel magnet and remove any iron that might have dropped onto the conveyed ore after the mill. SAG Mill Optimisation and Increasing Throughput at the Phu. Aug 31,2018 · The operation's comminution circuit,which comprises a semiautogenous (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. SAG Mill Grinding Circuit Design · The film shows a mill shell change we completed in June July of this year.Old shell was 32' new one is 33'.For mo Difference Between Sag Mill vs Ball Mill · 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. SAG Mill Flythrough on Vimeo  · This video was made for the SAG Conference,in which a company wanted to show a visual walkthrough of the SAG mill,from the beginning of it's processes to the end result.3 D rendering of SAG mill wireframes,Boronite,and SAG mill: John Kocon.Color correction,and … 3D Animation Demo & working site of Ball Mill · Offical website:【http: www.bailingmachinery.com 】 Alibaba website:【http: zzbailing.en.alibaba.com <20> SAG Mill Optimization using Model Predictive Control SAG Mill Optimization using Model Predictive Control ANDRITZ AUTOMATION Semi Autogenous Grinding mills can be optimized for maximum ore throughput or maximum grinding energy efficiency.SAG mill,mode Mill (grinding) 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%.The largest SAG mill is 42' (12.8m) in diameter,powered
```