# rod and ball mills

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

The ratio of barrel length to diameter of the ball mill is small, and in most cases the ratio is only slightly greater than 1. In addition, according to the China Fote Machinery the barrel speed of the rod mill is lower than the operating speed of the ball mill of the same specifiion, so that the medium inside the machine is in a dropoff state.

Get price### Ball Mills an overview ScienceDirect Topics

Ball mills are commonly used for crushing and grinding the materials into an extremely fine form. The ball mill contains a hollow cylindrical shell that rotates about its axis. This cylinder is filled with balls that are made of stainless steel or rubber to the material contained in it.

Get price### Industrial Ball Mills: Steel Ball Mills and Lined Ball

Ball Mills Steel Ball Mills & Lined Ball Mills. Particle size reduction of materials in a ball mill with the presence of metallic balls or other media dates back to the late 1800''s. The basic construction of a ball mill is a cylindrical container with journals at its axis.

Get price### MSC Industrial Supply Metalworking tools and MRO Supplies

MSC Industrial Supply Co. MSC Industrial Supply, Inc. is a leading North American distributor of metalworking and maintenance, repair and operations (MRO) products and services. With over 75 years of experience, MSC is dedied to helping customers drive greater productivity, profitability and growth.

Get price### GRINDING MILLSROD MILLSNew & Used Mining & Mineral

NEW AND USED ROD MILLS FOR SALE. Nelson Machinery supplies used and refurbished Rod Mills worldwide manufactured by Allis Chalmers, , and more. A rotating drum causes friction and attrition between steel rods and ore particles. The rods used in the mill, usually a highcarbon steel, can vary in both the length and the diameter.

Get price### Bond Work Index Tests Grinding Solutions Ltd

Bond Work Index Tests. Grinding Solutions offers a range of Bond Work Index Testing from crushability and abrasion to ball and rod mills. For more information on the tests please see below: Bond Low Energy Impact Test. The Bond LowEnergy Impact test can be used to determine the Crusher Work index (CWi), also known as the Impact Work Index.

Get price### Ball Mill Design/Power Calculation LinkedIn

The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are material to be ground, characteristics, Bond Work Index, bulk density, specific

Get price### 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. and balls

Get price### Rod Mills Savona Equipment

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.

Get price### Dual RodBall Mill : Columbia International, A World

Columbia International : Dual RodBall Mill Chemical Reactors Ball Mills for Fine Grinding Furnaces Drying Ovens Centrifuges Stirrer & Mixers Metal Ware Vacuum Equipments Automation & Controllers Hoods and Glove Boxes Microscopes Evaporation & Distillation Spray Dryers Pressing Machine and Dies Voltage Transformers Liquid Nitrogen Tanks Filtration Ultrasoniors Freeze Dryer Heating

Get price### TECHNICAL NOTES 8 GRINDING R. P. King

type. These mills exist in a variety of types rod, ball, pebble autogenous and semiautogenous. The grinding action is induced by relative motion between the particles of media the rods, balls or pebbles. This motion can be characterized as collision with breakage induced primarily by impact or

Get price### Ball Mill RETSCH powerful grinding and homogenization

Ball mills are among the most variable and effective tools when it comes to size reduction of hard, brittle or fibrous materials. The variety of grinding modes, usable volumes and available grinding tool materials make ball mills the perfect match for a vast range of appliions.

Get price### Ball and Rod Mill » Scott

Ball & Rod Mills are designed for simple long term operation The standard drive unit accepts a variety of different barrel sizes listed below. 200 x 200 Ball mill 200 x 250 Rod mill (Pictured) 250 x 250 Ball mill 250 x 300 Rod mill 300 x 300 Ball mill 300 x 360 Rod mill

Get price### Orway Mineral Consultants Canada Ltd. Mississauga, ON

47th ©Annual Canadian Mineral Processors Operators Conference, Ottawa, Ontario, January 2022, 2015 INTRODUCTION Conventional low throughput grinding options, consisting of multistage crushing followed by rod and ball mills, have almost become obsolete

Get price### 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.

Get price### Ball vs Rod vs Roll Mills Gold Refining Forum.com

Jun 11, 2019 · 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. In some cases, they can be used interchangable, but not with a mix of balls and rods. Both ball and rod mills can be operated either wet or dry, and in a batch or a continuiously mode.

Get price### MSC Industrial Supply Metalworking tools and MRO Supplies

MSC Industrial Supply Co. MSC Industrial Supply, Inc. is a leading North American distributor of metalworking and maintenance, repair and operations (MRO) products and services. With over 75 years of experience, MSC is dedied to helping customers drive greater productivity, profitability and growth.

Get price### Patterson Industries Ball & Pebble Mills

Our Ball, Tube and Rod Mills are designed for open or closed circuit grinding under the most severe and exacting conditions. PATTERSON offers a variety of Steel or Ceramic Jar Mills and Mill Jars ranging from 0.12 USG to 6.6 USG for laboratory, research and development use. Batch Type Ball and Pebble Mill production units range in size from 15

Get price### LARGE DIAMETER SAG MILLS NEED LARGE DIAMETER BALL MILLS

LARGE DIAMETER SAG MILLS NEED LARGE DIAMETER BALL MILLS – WHAT ARE THE ISSUES? ROWLAND C.A. Jnr. 1972., Grinding Calculations Related to the Appliion of Large Rod and Ball Mills

Get price### Rod Mills Savona Equipment

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.

Get price### 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

Get price### Ball and Rod Mill » Scott

Ball & Rod Mills are designed for simple long term operation The standard drive unit accepts a variety of different barrel sizes listed below. 200 x 200 Ball mill 200 x 250 Rod mill (Pictured) 250 x 250 Ball mill 250 x 300 Rod mill 300 x 300 Ball mill 300 x 360 Rod mill. Enquire.

Get price### Difference Between Sag Mill vs Ball Mill mech4study

Oct 12, 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.

Get price### Bond Work Index Tests Grinding Solutions Ltd

Bond Work Index Tests. Grinding Solutions offers a range of Bond Work Index Testing from crushability and abrasion to ball and rod mills. For more information on the tests please see below: Bond Low Energy Impact Test. The Bond LowEnergy Impact test can be used to determine the Crusher Work index (CWi), also known as the Impact Work Index.

Get price### Rod/Ball Mill Eriez Lab Equipment

Ball/Rod mill Literature . The Ball/Rod mills are meant for producing fine particle size reduction through attrition and compressive forces at the grain size level. They are the most effective laboratory mills for batchwise, rapid grinding of mediumhard to very hard samples down to finest particle sizes.

Get price### Rod mills, how they function Mine Engineer.Com

Rod mills operate at lower speed than ball mills since the rods are rolled and not cascaded. For an equivalent grind, a rod mill uses less steel than a ball mill because of the lower speed and better contact between the media and ore. The rod charge must be maintained in good working condition, and broken and worn rods must be removed.

Get price### Grinding Ball Mills for sale, Rod Mills, Pebble Mills, SAG

We offer the most reliable choice for all kinds of Ball Mills, Rod Mills, Pebble Mills, SAG Mills, Mine Hoists, Crushers, Synchronous Motors, DC Motors, Flotation, Mixers, Pumps, Diesel Generators, Natural Gas Generators and all the Mining Equipment you require.

Get price### Ball and Rod Mill » Scott

Ball & Rod Mills are designed for simple long term operation The standard drive unit accepts a variety of different barrel sizes listed below. 200 x 200 Ball mill 200 x 250 Rod mill (Pictured) 250 x 250 Ball mill 250 x 300 Rod mill 300 x 300 Ball mill 300 x 360 Rod mill. Enquire.

Get price### Ball and Rod Mills Xtek, Inc.

There are not many more critical pieces of equipment in the ore and mineral processing field than ball and rod mills.Early in the process they are designed to withstand the constant banging and bumping of the ball charges and the solid material.

Get price### Rod Tube And Ball Mills Parison FTMLIE Heavy Machinery

We have rod tube and ball mills parison,Pug Mills Pulverizers Rod Tube Mills Three Roll Mills » More Used Grinding Equipment Ball Rod SAG Mills Shop our wide selection of UnUsed and Used Grinding Equipment including Ball Mills SAG mills Rod Mills Vertical Mills No matter what you are mining or » More A Treatise on the internal mechanics of balltube and rod

Get price### Grinding mills spare parts

Grinding mills spare parts. Your mill is at the heart of your production process. When a part fails, you need to make the right decision to get your plant up and running. provides grinding mill parts for equipment previously sold under a variety of trade names and has OEM parts to fit seamlessly with your existing mill and process.

Get price### Used Ballmills For Sale

Buy used Ballmills from A.M. King Industries. We can help guide you to the best solution for your equipment needs.

Get price### Ball Mill RETSCH powerful grinding and homogenization

Ball mills are among the most variable and effective tools when it comes to size reduction of hard, brittle or fibrous materials. The variety of grinding modes, usable volumes and available grinding tool materials make ball mills the perfect match for a vast range of appliions.

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

The product size distribution is narrower than a ball mill but significantly coarser. Most are overflow discharge type. Lengthtodiameter= 1.4 to 2.3. Mill length = 7 meters. Rod MillBall Mill Circuits Diagrams of mill circuits [image: (13582)]

Get price### 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.

Get price### LAB/PILOT PLANT EQUIPMENT – MILLS Category Titan

LAB/PILOT PLANT EQUIPMENT • LAB/PILOT PLANT EQUIPMENT MILLS. Ball, Rod, and SAG Lab Mills. Specifiions Sizes 12″ and 16″ diam., up to 48″ long Mild steel construction Flanged heads Cut tooth spurtype ring and pinion

Get price