# ball mill vs rod mill

### Ball Mills vs Rod Mills

Because of this, the rod mill can effectively reduce 1″ feed size to 10 mesh or finer in open circuit The voids (or interstitial space) within a rod load are approximately half those in a ball mill grinding load Rods in place weigh approximately 400 pounds per cu ft

### Ball Mills Mineral Processing & Metallurgy

Feb 13, 2017· BallRod Mills, based on 4″ liners and capacity varying as 26 power of mill diameter, on the 5′ size give 20 per cent increased capacity; on the 4′ size, 25 per cent; and on the 3′ size, 28 per cent This fact should be carefully kept in mind when determining the capacity of a Steel Head BallRod Mill,

### Ball Mill vs Rod Mill | How To Choose Ball Mill or Rod

Ball Mills vs Rod Mills 1 Shape and Structure The ratio of cylinder length to diameter of rod mill is generally 1520, and the inner surface of liner plate on end cover is vertical plane In most cases, the ratio of the length to the diameter of the ball mill is only slightly greater than 1

### AMIT 135: Lesson 8 Rod Mills – Mining Mill Operator Training

Introduction### Buy Used Ball Mills Grinding Mills, Crushers & Process

May 02, 2020 · Buy Used Ball Mills Grinding Mills, Crushers & ProcessUNUSED WESTPRO 6' X 10' Ball Mill with 200 HP MotorBuy Unused Westpro 6' X 10' Ball Mill With 200 Hp Motor from AM King Industries RequestUNUSED minevik 22' x 38' (6706mm x 11582mm) Ball Mill, 10,000 kW (13405 HP) Twin PinioBuy Unused minevik 22' X 38' (6706mm X 11582mm) Ball Mill 10 000 Kw (13405 Hp) Twin Pini3 Units UNUSED FLSMIDTH 26’ x 43' Dual Pinion Ball Mill with 2 ABB 9,000 kW (12,069 HPBuy 3 Units Unused Flsmidth 26’ X 43' Dual Pinion Ball Mill With 2 Abb 9 000 Kw (12 069 Hp在 amking 上查看完整列表### The Difference Between the Ball Mill and Rod Mill Essay

Apr 02, 2012· Ball mills and rod mills are both excellent mining machines for grinding ores into fine powders and particles However, many customers are confused when they choosing equipments for grinding due to their similar appearance This paragraph is a brief explanation to the difference of ball mill and rod mill below The calling name of ball mill and rod mill comes from the different grinding

### Ball Mill VS Rod Mill Xinhai

Rod mill are used widely in plant and are compared by us This text will analyze the two equipment in some aspect The grinding theory Though used different medium (steel ball and steel rod are contained in ball mill and rod mill), the working theory of ball mill and rod mill are similar

### Which one is the best, ball mill or rod mill?

In the ball mill, commonly used have the lattice ball mill and overflow ball mill (named from different drainage structure), and the rod mill does not use the grid plate drainore, only overflow type and opening type two kinds, the diameter of the hollow shaft at the drainage and end is generally larger than the same specification ball mill

### How Ball Mills Work (Engineering and Mining)

Jun 20, 2019· For both wet and dry ball mills, the ball mill is charged to approximately 33% with balls (range 3045%) Pulp (crushed ore and water) fills another 15% of the drum’s volume so that the total

### Comparison between Rod Mill and Ball Mill ore processing

Rod mill is a type of grinding mill whose grinding media is steel bar, while ball mill is steel ball 1 Rod mill are usually applied to grinding the wsn ore and rare metal in the reselection or magneticoredressing plant in order to avoid the damage caused by the over crushing 2 In the two stage grinding process, if it requires grinding the ore from 206mm to 13mm in the first stage, rod

### What is the difference between the ball mill and rod mill

Dec 18, 2019· At present, the most widely used grinding equipment in the dressing plant is ball mill and rod mill As far as the working principle is concerned, both ball mill and rod millare the same The grinding medium (steel ball or steel rod) installed in

### What are the differences between ball mill and rod mill

Nov 23, 2019· Recommendation of ball mill and rod mill Ball mill and rod mill are suitable for different materials 1 Selection by material's hardness Ball mill has a strong adaptation of material, and it is suitable for grinding hard materials, such as slag, iron ore, copper ore, etc Rod mill is suitable for grinding brittle material, such as rare metals

### Mill (grinding) Wikipedia

Rod mills are less common than ball mills for grinding minerals The rods used in the mill, usually a highcarbon steel, can vary in both the length and the diameter However, the smaller the rods, the larger is the total surface area and hence, the greater the grinding efficiency

### Grinding Mills and Their Types – IspatGuru

Ball mills Ball mill (Fig 1) is same kind of mill as rod mill, except that it is filled with balls instead of rods Because of balls have greater ratio of surface area than rods they are more suitable for fine grinding Balls are also lighter, so the kinetic energy of a single dropping ball is smaller than a rod

### 7 Differences Between Ball Mill and Rod Mill Xinhai

3 Grinding medium of ball mill and rod mill The rod mill usually adopts the steel bar with a diameter of 50100mm as the grinding medium, while the ball mill often uses steel ball as the grinding medium The difference on grinding medium is the main difference between the ball mill and rod mill

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

From the volume, the ball mill divide into industrial ball mill and laboratory use the small ball mill, sample grinding test In addition, these mills also play an important role in cold welding, alloy production, and thermal power plant power production SAG mill vs Ball mill Crushing ratio

### Difference Between Sag Mill vs Ball Mill mech4study

Oct 12, 2017· Today we will learn about difference between sag mill vs ball mill A mill is a machine by which solid or hard materials are broken into smaller pieces by means of grinding, crushing or cutting This commutation is an essential part of many processes Various kinds of mills are there with which different material processing takes place

### Rod Mill an overview | ScienceDirect Topics

Rod mills have an industrial yield that is less than that of a ball mill, which explains the fact that balls have a much larger grinding surface than rods The power needed to operate a rod mill could exceed 30% of the power used in a ball mill When they are worn, rods must not stretch but break in rather small pieces, so that they can exit

### Ball vs Rod vs Roll Mills Gold Refining Forum

Jun 11, 2019· In the order you have listed; a ball mill can fine grind down to <400 mesh if needed, a rod mill will efficiently grind to 150/200 mesh range, and a roll mill can do a +/ 100 mesh The ball and rod mills are similar in appearence, as a large rotating lined cylindrical tube filled with either metal balls or long rods used as the grinding medium

### How to choose ball mill and rod mill? Bailing Machinery

Rod mill Ball mill 2 Species analysis (different mining methods) In the ball mill, there are commonly used lattice ball mills and overflow ball mills (named from different mine department structures), The rod mill does not use the grid plate to discharge ore There are only two types of overflow type and open type

### Ball and Rod Mill PK Mining

Rod mills are grinding machine which employ high carbon steel or special steel rods of nearly the same length as that of the drum, in place of steel balls in ball mills Rod mill products are generally coarser than those produced in a ball mill, and rod mills are well suited to handle coarser feed and to control the top size of the product

### How to choose ball mill and rod mill? Bailing Machinery

Rod mill Ball mill 2 Species analysis (different mining methods) In the ball mill, there are commonly used lattice ball mills and overflow ball mills (named from different mine department structures), The rod mill does not use the grid plate to discharge ore There are only two types of overflow type and open type

### Ball and Rod Mill PK Mining

Rod mills are grinding machine which employ high carbon steel or special steel rods of nearly the same length as that of the drum, in place of steel balls in ball mills Rod mill products are generally coarser than those produced in a ball mill, and rod mills are well suited to handle coarser feed and to control the top size of the product

### What is Ball Mill | How Many Types of Ball Mills | M&C

(1) Types on the Basis of Cylinder 1 Short Cylinder Ball Mill: The ball mill with the cylinder length (L) less than 2 times of the cylinder diameter, ie the ball mill with L ≤ 2D is short cylinder ball mill, which is usually of single bin structure, mainly used for rough grinding or primary grinding operation, and can realize the wide use of 23 ball mills in series

### Rod Mill | Definition of Rod Mill by MerriamWebster

Rod mill definition is a mill that produces rods of steel or other metal

### the Difference of Rod Mill and Ball Mill ore processing

Rod mill and ball mill may be only one word difference in the name, but in fact, there was a striking internal differences Rod mill , as the name suggests, is to rely on rod bars for the material grinding,and wet overflow is a generally used material wayRod mill is generally used as a grinding equipment in the artificial stone sand

### Ball Mill Vs Rod Mill detoxsynergycz

Difference between ball mill rod mill Difference between sag mill vs ball mill mech4study oct 12, 2017 today we will learn about difference between sag mill vs ball mill a mill is a machine by which solid or hard materials are broken into smaller

### What’s the difference of Ball mill, SAG mill, AG mill?

Attrition mill is a type of grinding mill by kinds of media to crush lump to powderlike substances 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

### AMIT 135: Lesson 6 Grinding Circuit – Mining Mill Operator

The 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

### Lab Ball Mills

Lab Sand Mill Lab Rod Mill Lab Ball Mill Lab Glove Box / Operation Box Centrifuge Series Vibrating Screen Series CONTACT Tel: 0086731 Fax: 0086731 Laboratory Horizontal Planetary Ball Mill Mini Vertical Planetary Ball Mill 22

### Technical Performance and Application of Ball Mill and Rod

Rod mill Unlike the ball mill, the grinding medium in the rod mill is a steel rod, so the working characteristics are significantly different from those of the ball mill Since the steel balls are in point contact, the steel rods are in line contact

### Bond Work Index Tests Grinding Solutions Ltd

Grinding Solutions can carry out Bond Rod Mill Work Index tests to determine the energy requirements for milling ore in a rod mill The test requires a minimum of 20kg of 125mm material Closing screen sizes typically range from 475mm to 212µm

### Pharmaceutical Technology: PRACTICAL I : BALL MILLING

Dec 24, 2013· A ball mill is an example of a comminution method which produces size reduction by both impact and attrition of particles Ball mills consist of a hollow cylinder mounted such that it can be rotated on its horizontal longitudinal axis Cylinder diameters can be greater than 3 m, although much smaller sizes are used pharmaceutically

### Flow of materials in rod mills as compared to ball mills

As mentioned above, the difference in the material flow behavior between the ball mill and the rod mill partially explains the well known difference in the product particle size distribution of ball mills and rod mills In the case of ball mills, the axial dispersion is higher and the mean residence time is shorter than those in rod mills In

### What it is the optimun speed for a ball mill

Oct 19, 2006· What it is the optimun speed for a ball mill ? posted in Pyrotechnics: I have done a ball mill , recenly finished , but the motor has too rpms , is too fast for use in a ball mill (the pvc cylinder that i use , left of the shafts) With the motor i will use a 40 mm pulley , because i have a 50 mm driven pulley, in one of my two shafts In the other side of my shafts there are