GME +GLOBAL MINING MACHINE

Coal Ball Crusher

Crusher - Wikipedia

Coal Ball Crusher coal grinding mill,coal ball mill,energy saving coal mill2015 1 23 · coal mill is widely used in building material, chemical industry, etc. there are two ways of grinding the dry process and the wet process. it can be divided into tabular type and flowing type according to different forms of discharging material.

Lubrication System Of A Coal Ball Mill

May 28, 2013· stirred vertical ball mill – Coal Crusher,Coal Mill,Coal … INVENTORY# 6C-210 1 ? Pair of METPROTECH Stirred Vertical Ball Mills 400/2000, S/N …

Ball Mill For Coal Crusher Essay - 575 Words - AVSAB Online

Dec 12, 2016· coal pulverizer for power plant - India. and other products.coal pulverizer for power plant is mainly used in crushing equipment,jaw pulverizer coal mill in power pulverizer in mill plant for ...

Coal Crusher Suppliers - alibaba.com

coal crushing ball mill archfb.be. Pulverizer Wikipedia. A pulverizer or grinder is a mechanical device for the grinding of many different types of materials For example, a pulverizer mill is used to pulverize coal for combustion in the, The ball and tube mills are low-speed machines that grind the coal with steel balls, Similar to the vertical roller mill, it also uses tires to crush coal

Coal Crusher | Mobile Crusher Philippines

grinding ball grinding ring for coal mill - sudiptacaterers. Equipments include crusher, ball mill, grinding mill, complete quarry plant bowl extension ring of coal mill 763xrp, Crusher Price Bowl mill has.Optimum Operation and Maintenance of EL Pulverizers - Innovative .classifier, classifier cone, grinding rings, balls, cabbage cutter . maintenance is required to maintain optimum raw coal ...

balls used in coal crushing - essentialgap.co.za

Coal is introduced through two hollow trunnions on each side of the tube. As the tube rotates, the balls tumble onto the coal,crushing and pulverizing it. Impact Mills Grinding Action is carried out by aseries of hinged or fixed hammers revolving in an Improving Coal Pulverizer Performance and Reliability Coal Conveyer Coal Crusher Raw Coal Bunker

ROC - Roadheader and crusher - sesta.org.in

Boiler name: ball mining crusher. ... Abutment — In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid ...

Pulverizer - Wikipedia

Crusher, pulveriser, grinder or mill for the laboratory to pilot plant sample processing. ... for every application and every specific need: Planetary Ball Mills, Ball Mills, Cutting and Beater Mills, Rotor Mills, Jaw Crushers, Roll Crushers, Cone Crushers, Disk Mills and Mortar Grinders. ... Crushers, Pulverizers, Grinders High Energy ...

ball mill crusher manufacturers for coal - magazene.nl

Coal Mill,Coal Ball Mill,Coal Mill equipment,Coal Grinder … Coal mill also called coal pulverzier or coal grinder is that grinding mill used in coal mining industry and thermal power plant, such as ball mill,vertical coal mill.

Pulverizer Ball Mill How It Works | Crusher Mills, Cone ...

noise level measurment for coal ball mill XSM is a leading global manufacturer of crushing and milling equipment (noise level measurment for coal ball mill),XSM also supply individual (noise level measurment for coal ball mill...) crushers and mills as well as spare parts of them.

Coal Ball Crusher - zanati.co.za

Pulverizing Ball Mill Failures - Machinery Lubrication. Ball mills, or pulverizers, are critical to the operation of any coal-fired boiler. ... Install a side-loop circulating system with air …

Pulverizer in mill plant for crushing coal - YouTube

They are much cleaner to handle than charcoal or coal, and produce less local air pollution. Wood Chipper and Crusher. This wood chipper and crusher is a integrated machine combining wood chipper and wood crusher together. It is suitable for crushing big diameter wood log at high capacity.

ball mill for coal crushing - foundryalloys.in

Coal Crushing Plant used in South Africa,coal crusher for sale . DSMA jaw crusher, impact crusher for coal crushing have been widely used in the coal industry and mining industry, for its high and unique quality.ball and tube coal pulverizing. ball tube mill. ball tube mills are either pressurized or suction type. in the pressurized type, the hot primary air is used for ...

Crushers, Pulverizers & Mills - Gilson Co.

Williams Crusher leads the industry in coal pulverizer manufacturing, offering the industry's most advanced direct fired coal and pet coke crushing system. Whether you're looking for a direct fired pulverizer, low-capacity coal size reduction solutions, or something in …

Coal Crusher Balls And Rings - nnguniclub.co.za

Coal ball crusher youtube. sep 10, 2012 type ball mill coal mill grinding ball 1 . Get Price And Support Online; ball crushers with conentrater coal russian. 10 Insane Russian mines - Mineral Processing & Extractive MetallurgyAug 2, 2015 The Sukhoi Log mine is one of …

Improving Coal Pulverizer Performance and Reliability

Apr 12, 2019· This is a complete coal briquette line, consist of storage silo, conveyor belt,coal crusher, additive bin, 2 sets of double shaft mixer, conveyor belt, ball briquette press machine,

rotary ball mill motors maintenance coal russian

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.

Briquette Machines_Mining machinery in TMYES.COM

Boiler name: ball mining crusher. ... Abutment — In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid ...

charcoal briquette machine,coal ball equipment

ball mill for coal crushing. Home » ball mill for coal crushing. stone crusher in nigeria,limestone crushing plant. Service Assurance. Our service commitment is not a slogan but a firm action. To this end, we have established enormous, systematic, and standardized service assurance system to ensure timely and proper handling of each service item.

Laboratory Crushers, Pulverizers, Grinders | Laval Lab

Dec 12, 2016· coal pulverizer for power plant - India. and other products.coal pulverizer for power plant is mainly used in crushing equipment,jaw pulverizer coal mill in power pulverizer in mill plant for ...

ball mill for crushing coal - relaxacademy.nl

Category Archives: Coal Crusher ... the manufacturer of medium speed coal mill To meet stakeholders' expectations, COMPANY great emphasis on the continuous up gradation of products and related technologies and development of new products so as to remain competitive & future ready. ... The specification of medium speed coal ball mill ...

ball mining crusher - housing-arableague.org

The ball and tube mills are low-speed machines that grind the coal with steel balls in a rotating horizontal cylinder. Due to its shape, it is called a tube mill and due to use of grinding balls for crushing, it is called a ball mill, or both terms as a ball tube mill. These mills are …

Coal Ball Crushers - cz-eu.eu

iron balls for crushing coal aatma.co.in. iron balls for crushing coal crusher plant,crushing plant . iron balls for crushing coal a ball mill uses steel balls and balls for crushing coal mining ball. iron mill balls for crushing coal rrcser.in. iron ore processing mill youtube. jul 26, 2016 for an overview mining operations in the ball mill ...

biomass briquette machine-Xingyang Hongyun Wood Working ...

ball mill for coal crusher feldspar crusher sales ball mill for coal crusher. ball mill for coal crusher excellent mining crushing machinery products or production line design, the company is committed to ball mills ball grinder ball mill machine cement ball ball mill can be divided into tabular type ball mill and flowing type ball mill.

noise level measurment for coal ball mill– Rock Crusher ...

Coal Crushing Plant used in South Africa,coal crusher for sale . DSMA jaw crusher, impact crusher for coal crushing have been widely used in the coal industry and mining industry, for its high and unique quality.ball and tube coal pulverizing. ball tube mill. ball tube mills are either pressurized or suction type. in the pressurized type, the hot primary air is used for ...

Pulverizer in mill plant for crushing coal - YouTube

how coal mill pulverizer works –Crusher Mill China . … pictures pulverizer power plant ball mill Description : Pulverizer – Wikipedia, … How Do Ball Mill Coal Pulverizers Work – Crusher USA » how to increase coal ball mill output » how does ball mill work » how do ball mill coal pulverizers work » what coal mill, vertical roller ...

ball mining crusher - housing-arableague.org

Charcoal ball pressure machine means we use briquette machine who has two big rollers to press fine charcoal powder into small ball shape briquettes. Charcoal Crusher Charcoal crusher machine is widely used for grinding for charcoal .

Coal Crushers | Coal Pulverizers & Mills | Williams Crusher

Crushing rolls might, logically, include roll crushers of the sledging type, the name, by popular usage, is restricted to the double-roll machine (with either smooth or corrugated shells) which crushes entirely by pressure between the surfaces of the roll faces. The sledging type of either single or double-roll arrangement is usually differentiated by such titles as "roll crusher" or ...

balls used in coal crushing - essentialgap.co.za

Coal Crusher Suppliers Directory - Choose Quality Verified Coal Crusher Suppliers and Manufacturers, Wholesale Coal Crusher Sellers and Exporters at Alibaba.com. ... (Crusher,Ball Mill,Rotary Dryer,Rotary Kiln,Flotation Machine,Magnetic Separator,Ore Beneficiation Line,Sand Making Equipment,LECA Production Line,Cement Production Line,Quick Lime ...

Client's site of Charcoal Briquette Making Production Line ...

coal ball mill pdf; coal mining ball mill coal mining invest guide malaysia; perfect knowledge in coal industry coal pulverizer ball mill; coal ball mill crusher for sale africa; portable crusher coal indonesia what is ball mill in grinding gold ore; ball mill to grind stone dust china australia brown coal screening; tube and ball mill coal ...

Coal Pulverizer Mill UK - crusherapplication.com

Coal mill pulverizer. Coal ball mill: As a consequence of the rugged simplicity of the style, the ball mill features a outstanding availability record. This is due to a fundamental fact within the design of any size reduction equipment, such as crushers and grinding mill, where low speed benefits in reduced put on prices per ton of material ...

Iron Balls For Crushing Coal - electricalcontrols.in

Coal Ball Crushers cz-eu.eu. Coal Ball Crusher padmahotel ball mill crushing coal grinding mill china industry plants coal mill is the equipment that is used to crush the . Read More. Get Price And Support Online; ball coal mill description jordan crusher|Tunnelling .

Roll Crusher - Metallurgist & Mineral Processing Engineer

ball mill for coal crusher equipment - emaxis.pl. Ball mill - Wikipedia. The ball mill is a key piece of equipment for grinding crushed materials, and it is widely used in production lines for powders such as cement, silicates, refractory material, fertilizer, glass ceramics, etc. as well as for ore dressing of both ferrous and non-ferrous metals.

Coal Rotary Crusher, Coal Mill,Cement Mill,Cement Mills ...

kaolin crusher supplier in angola mahamaham2016. used coal jaw crusher manufacturer in angola Pe250*400 Grinding Mill Suppliers kaolin jaw crusher exporter in nigeria Chat Now Kaolin Jaw Crusher Price In Angola Stone(Ore) Crusher mobile lizenithne ball mill suppliers angola for sale south africa,gold ore crusher.fine sand.kaolin cone crusher provider in angola.used iro ore .

Coal Ball Crusher - funcfood.eu

Coal is introduced through two hollow trunnions on each side of the tube. As the tube rotates, the balls tumble onto the coal,crushing and pulverizing it. Impact Mills Grinding Action is carried out by aseries of hinged or fixed hammers revolving in an Improving Coal Pulverizer Performance and Reliability Coal Conveyer Coal Crusher Raw Coal Bunker

Improving Coal Pulverizer Performance and Reliability

Crushers include offers jaw crushers, hammermills, cone crushers and roll crusher options, each with multiple models, and designed for performance on harder materials such as ores, minerals, coal and rock. Pulverizers efficiently reduce aggregate, mineral or coal sample particle sizes using grinding plates, hammermills, or centrifugal impact.

Coal Grinder | Crusher Mills, Cone Crusher, Jaw Crushers

ball mill / horizontal / for coal grinding / for limestone Make a request ball mill, In some cases, rod mill can perform crushing instead of short head cone crusher When processing soft or low-hardness ore,, The ball mill splits the sample because of the hits against the balls It moves along an arc of a semi-circle due to the dragging .

Crusher - Wikipedia

Coal Ball Crusher coal grinding mill,coal ball mill,energy saving coal mill2015 1 23 · coal mill is widely used in building material, chemical industry, etc. there are two ways of grinding the dry process and the wet process. it can be divided into tabular type and flowing type according to different forms of discharging material.

Lubrication System Of A Coal Ball Mill

May 28, 2013· stirred vertical ball mill – Coal Crusher,Coal Mill,Coal … INVENTORY# 6C-210 1 ? Pair of METPROTECH Stirred Vertical Ball Mills 400/2000, S/N …

Ball Mill For Coal Crusher Essay - 575 Words - AVSAB Online

Dec 12, 2016· coal pulverizer for power plant - India. and other products.coal pulverizer for power plant is mainly used in crushing equipment,jaw pulverizer coal mill in power pulverizer in mill plant for ...

Coal Crusher Suppliers - alibaba.com

coal crushing ball mill archfb.be. Pulverizer Wikipedia. A pulverizer or grinder is a mechanical device for the grinding of many different types of materials For example, a pulverizer mill is used to pulverize coal for combustion in the, The ball and tube mills are low-speed machines that grind the coal with steel balls, Similar to the vertical roller mill, it also uses tires to crush coal

Coal Crusher | Mobile Crusher Philippines

grinding ball grinding ring for coal mill - sudiptacaterers. Equipments include crusher, ball mill, grinding mill, complete quarry plant bowl extension ring of coal mill 763xrp, Crusher Price Bowl mill has.Optimum Operation and Maintenance of EL Pulverizers - Innovative .classifier, classifier cone, grinding rings, balls, cabbage cutter . maintenance is required to maintain optimum raw coal ...

balls used in coal crushing - essentialgap.co.za

Coal is introduced through two hollow trunnions on each side of the tube. As the tube rotates, the balls tumble onto the coal,crushing and pulverizing it. Impact Mills Grinding Action is carried out by aseries of hinged or fixed hammers revolving in an Improving Coal Pulverizer Performance and Reliability Coal Conveyer Coal Crusher Raw Coal Bunker

ROC - Roadheader and crusher - sesta.org.in

Boiler name: ball mining crusher. ... Abutment — In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid ...

Pulverizer - Wikipedia

Crusher, pulveriser, grinder or mill for the laboratory to pilot plant sample processing. ... for every application and every specific need: Planetary Ball Mills, Ball Mills, Cutting and Beater Mills, Rotor Mills, Jaw Crushers, Roll Crushers, Cone Crushers, Disk Mills and Mortar Grinders. ... Crushers, Pulverizers, Grinders High Energy ...

ball mill crusher manufacturers for coal - magazene.nl

Coal Mill,Coal Ball Mill,Coal Mill equipment,Coal Grinder … Coal mill also called coal pulverzier or coal grinder is that grinding mill used in coal mining industry and thermal power plant, such as ball mill,vertical coal mill.

Pulverizer Ball Mill How It Works | Crusher Mills, Cone ...

noise level measurment for coal ball mill XSM is a leading global manufacturer of crushing and milling equipment (noise level measurment for coal ball mill),XSM also supply individual (noise level measurment for coal ball mill...) crushers and mills as well as spare parts of them.

Coal Ball Crusher - zanati.co.za

Pulverizing Ball Mill Failures - Machinery Lubrication. Ball mills, or pulverizers, are critical to the operation of any coal-fired boiler. ... Install a side-loop circulating system with air …

Pulverizer in mill plant for crushing coal - YouTube

They are much cleaner to handle than charcoal or coal, and produce less local air pollution. Wood Chipper and Crusher. This wood chipper and crusher is a integrated machine combining wood chipper and wood crusher together. It is suitable for crushing big diameter wood log at high capacity.

ball mill for coal crushing - foundryalloys.in

Coal Crushing Plant used in South Africa,coal crusher for sale . DSMA jaw crusher, impact crusher for coal crushing have been widely used in the coal industry and mining industry, for its high and unique quality.ball and tube coal pulverizing. ball tube mill. ball tube mills are either pressurized or suction type. in the pressurized type, the hot primary air is used for ...

Crushers, Pulverizers & Mills - Gilson Co.

Williams Crusher leads the industry in coal pulverizer manufacturing, offering the industry's most advanced direct fired coal and pet coke crushing system. Whether you're looking for a direct fired pulverizer, low-capacity coal size reduction solutions, or something in …

Coal Crusher Balls And Rings - nnguniclub.co.za

Coal ball crusher youtube. sep 10, 2012 type ball mill coal mill grinding ball 1 . Get Price And Support Online; ball crushers with conentrater coal russian. 10 Insane Russian mines - Mineral Processing & Extractive MetallurgyAug 2, 2015 The Sukhoi Log mine is one of …

Improving Coal Pulverizer Performance and Reliability

Apr 12, 2019· This is a complete coal briquette line, consist of storage silo, conveyor belt,coal crusher, additive bin, 2 sets of double shaft mixer, conveyor belt, ball briquette press machine,

rotary ball mill motors maintenance coal russian

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.

Briquette Machines_Mining machinery in TMYES.COM

Boiler name: ball mining crusher. ... Abutment — In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid ...

charcoal briquette machine,coal ball equipment

ball mill for coal crushing. Home » ball mill for coal crushing. stone crusher in nigeria,limestone crushing plant. Service Assurance. Our service commitment is not a slogan but a firm action. To this end, we have established enormous, systematic, and standardized service assurance system to ensure timely and proper handling of each service item.

Laboratory Crushers, Pulverizers, Grinders | Laval Lab

Dec 12, 2016· coal pulverizer for power plant - India. and other products.coal pulverizer for power plant is mainly used in crushing equipment,jaw pulverizer coal mill in power pulverizer in mill plant for ...

ball mill for crushing coal - relaxacademy.nl

Category Archives: Coal Crusher ... the manufacturer of medium speed coal mill To meet stakeholders' expectations, COMPANY great emphasis on the continuous up gradation of products and related technologies and development of new products so as to remain competitive & future ready. ... The specification of medium speed coal ball mill ...

ball mining crusher - housing-arableague.org

The ball and tube mills are low-speed machines that grind the coal with steel balls in a rotating horizontal cylinder. Due to its shape, it is called a tube mill and due to use of grinding balls for crushing, it is called a ball mill, or both terms as a ball tube mill. These mills are …

Coal Ball Crushers - cz-eu.eu

iron balls for crushing coal aatma.co.in. iron balls for crushing coal crusher plant,crushing plant . iron balls for crushing coal a ball mill uses steel balls and balls for crushing coal mining ball. iron mill balls for crushing coal rrcser.in. iron ore processing mill youtube. jul 26, 2016 for an overview mining operations in the ball mill ...

biomass briquette machine-Xingyang Hongyun Wood Working ...

ball mill for coal crusher feldspar crusher sales ball mill for coal crusher. ball mill for coal crusher excellent mining crushing machinery products or production line design, the company is committed to ball mills ball grinder ball mill machine cement ball ball mill can be divided into tabular type ball mill and flowing type ball mill.

noise level measurment for coal ball mill– Rock Crusher ...

Coal Crushing Plant used in South Africa,coal crusher for sale . DSMA jaw crusher, impact crusher for coal crushing have been widely used in the coal industry and mining industry, for its high and unique quality.ball and tube coal pulverizing. ball tube mill. ball tube mills are either pressurized or suction type. in the pressurized type, the hot primary air is used for ...

Pulverizer in mill plant for crushing coal - YouTube

how coal mill pulverizer works –Crusher Mill China . … pictures pulverizer power plant ball mill Description : Pulverizer – Wikipedia, … How Do Ball Mill Coal Pulverizers Work – Crusher USA » how to increase coal ball mill output » how does ball mill work » how do ball mill coal pulverizers work » what coal mill, vertical roller ...

ball mining crusher - housing-arableague.org

Charcoal ball pressure machine means we use briquette machine who has two big rollers to press fine charcoal powder into small ball shape briquettes. Charcoal Crusher Charcoal crusher machine is widely used for grinding for charcoal .

Coal Crushers | Coal Pulverizers & Mills | Williams Crusher

Crushing rolls might, logically, include roll crushers of the sledging type, the name, by popular usage, is restricted to the double-roll machine (with either smooth or corrugated shells) which crushes entirely by pressure between the surfaces of the roll faces. The sledging type of either single or double-roll arrangement is usually differentiated by such titles as "roll crusher" or ...

balls used in coal crushing - essentialgap.co.za

Coal Crusher Suppliers Directory - Choose Quality Verified Coal Crusher Suppliers and Manufacturers, Wholesale Coal Crusher Sellers and Exporters at Alibaba.com. ... (Crusher,Ball Mill,Rotary Dryer,Rotary Kiln,Flotation Machine,Magnetic Separator,Ore Beneficiation Line,Sand Making Equipment,LECA Production Line,Cement Production Line,Quick Lime ...

Client's site of Charcoal Briquette Making Production Line ...

coal ball mill pdf; coal mining ball mill coal mining invest guide malaysia; perfect knowledge in coal industry coal pulverizer ball mill; coal ball mill crusher for sale africa; portable crusher coal indonesia what is ball mill in grinding gold ore; ball mill to grind stone dust china australia brown coal screening; tube and ball mill coal ...

Coal Pulverizer Mill UK - crusherapplication.com

Coal mill pulverizer. Coal ball mill: As a consequence of the rugged simplicity of the style, the ball mill features a outstanding availability record. This is due to a fundamental fact within the design of any size reduction equipment, such as crushers and grinding mill, where low speed benefits in reduced put on prices per ton of material ...

Iron Balls For Crushing Coal - electricalcontrols.in

Coal Ball Crushers cz-eu.eu. Coal Ball Crusher padmahotel ball mill crushing coal grinding mill china industry plants coal mill is the equipment that is used to crush the . Read More. Get Price And Support Online; ball coal mill description jordan crusher|Tunnelling .

Roll Crusher - Metallurgist & Mineral Processing Engineer

ball mill for coal crusher equipment - emaxis.pl. Ball mill - Wikipedia. The ball mill is a key piece of equipment for grinding crushed materials, and it is widely used in production lines for powders such as cement, silicates, refractory material, fertilizer, glass ceramics, etc. as well as for ore dressing of both ferrous and non-ferrous metals.

Coal Rotary Crusher, Coal Mill,Cement Mill,Cement Mills ...

kaolin crusher supplier in angola mahamaham2016. used coal jaw crusher manufacturer in angola Pe250*400 Grinding Mill Suppliers kaolin jaw crusher exporter in nigeria Chat Now Kaolin Jaw Crusher Price In Angola Stone(Ore) Crusher mobile lizenithne ball mill suppliers angola for sale south africa,gold ore crusher.fine sand.kaolin cone crusher provider in angola.used iro ore .

Coal Ball Crusher - funcfood.eu

Coal is introduced through two hollow trunnions on each side of the tube. As the tube rotates, the balls tumble onto the coal,crushing and pulverizing it. Impact Mills Grinding Action is carried out by aseries of hinged or fixed hammers revolving in an Improving Coal Pulverizer Performance and Reliability Coal Conveyer Coal Crusher Raw Coal Bunker

Improving Coal Pulverizer Performance and Reliability

Crushers include offers jaw crushers, hammermills, cone crushers and roll crusher options, each with multiple models, and designed for performance on harder materials such as ores, minerals, coal and rock. Pulverizers efficiently reduce aggregate, mineral or coal sample particle sizes using grinding plates, hammermills, or centrifugal impact.

Coal Grinder | Crusher Mills, Cone Crusher, Jaw Crushers

ball mill / horizontal / for coal grinding / for limestone Make a request ball mill, In some cases, rod mill can perform crushing instead of short head cone crusher When processing soft or low-hardness ore,, The ball mill splits the sample because of the hits against the balls It moves along an arc of a semi-circle due to the dragging .