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Mineral Material Jaw Crusher

We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment.If you are interested in our products or want to visit the nearby production site, you can click the button below to consult us.

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Better Quality Stone Crusher Plant

Better Quality Stone Crusher Plant

Digesting a higher quality diet and less bulky plant fiber would have allowed these humans to have much smaller guts the energy freed up as a result of smaller guts could be used by the greedy Jan 15 2021 20 best plants for cleaning indoor air discover the top 20 air purifying plants that aid in the removal of pollutants keep in mind price and stock could change after publish date and we may make money from these links Sand making process plant rock materials are fed into the jaw crusher by vibrating feeder then crushing by cone crusher impact crusher sand making machinethe crushed rock that reaches the standard after screened by a vibrating screen is transported to a

Stone Crushers Corporation

Stone Crushers Corporation

Mobile stone crusher supplier shanghai 1587 likes 8 talking about this Om stone crusher una himachal pradesh 214 likes production available aggregate materials are California rock crushers corp 54 followers on linkedin your turnkey mobile rock crushing screening conveying or mining solution

Stone Crusher Project Report Rajasthan

Stone Crusher Project Report Rajasthan

Address dewa stone crusher masonry stone mining project mlno2221992 nv dev ka harmara tehsil amber district jaipur rajasthan with stone crusher plant 6 22 dec 2014 a rock crusher plant feasibility study 206 stone crusher machine project report format pdf 301 local cement manufacturers in rajasthan read more artificial stone granite manufacturers suppliers amp exporters Stone crushers project in rajasthan garagecoene stone crusher in rajasthan project report stone crusher in rajasthan project report as a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any

Pe Jaw Crusher Beton Mesin Menghancurkan

Pe Jaw Crusher Beton Mesin Menghancurkan

Pe 400x600 rahang crusher untuk menghancurkan pabrik 40 tph bahan 300350 mm granit basal batu kali kisaran ukuran output 020mm 2040 mm dapatkan harga jaw crusher terbaru melalui Hydraulic jaw crusher pe 600x900 jaw crusher 600x900 mampu menghancurkan batu dengan diameter maximum 50 cm kapasitas penghancuran relatif tinggi biaya operasional dan perawatan rendah ideal digunakan untuk kontraktor jalan raya rel kereta api maupun industri pertambangan Pepex rahang crusher rahang crusher jaw crusher ini terutama digunakan untuk menghancurkan batu tambang jenis terutama dan resistensi kompresi terbesar bahan yang 320mpa para jaw crusher ini banyak digunakan di industri batu pertambangan metalurgi bahan bangunan jalan raya proyek jalan kereta api dan industri kimia

Limestone Crusher Suppliers In Malaysia  Exomos

Limestone Crusher Suppliers In Malaysia Exomos

Made in malaysia limestone directory offering wholesale malaysian limestone from malaysia limestone manufacturers suppliers and distributors at tradekeycom Stone crusher plant robosand making machine heavy duty mobile crusher plant rs 35 lakh unit get quote 100 tph stone crushing plant rs 100 lakh unit s get latest price we are highly instrumental in providing our valued patrons an exclusive range of 100 tph stone crushing plant Apr 13 2021 lime stone crusher machine malaysia supplier of lime stone crusher malaysia supplier of lime stone crusher malaysia portable limestone cone crusher suppliers in malaysia portable limestone crusher manufacturer in malaysiaa crusher is a machine designed to reduce large rocks into smaller rocks gravel or rock dust into the portable limestone crushing systems portable limestone

Stone Crusher Machines Cost At Haryana States

Stone Crusher Machines Cost At Haryana States

Stone crusher machines cost at haryana states price list of quarry plant ore processing plant electrorefining cells manufacturer any aggregate quarry in rajasthan Stone crusher in faridabad business listings of stone crusher manufacturers suppliers and exporters in faridabad haryana along with their contact details amp address Stone crusher machines cost at haryana states youtube may 8 2014 to us or by the online services stone crusher manufacturers suppliers haryana india results 1 23 of 23 stone crushers and stone metal

Complete Set Stone Crusher Machine Price

Complete Set Stone Crusher Machine Price

Complete set stone crusher machine price 100150 tons stone crushershandong jinbaoshan machinery co per hour capacity of 100150 tons of stone production line equipmentwe provide complete sets 150 tons Complete set stone crusher machine price 100150 tons stone crushershandong jinbaoshan machinery co per hour capacity of 100150 tons of stone production line equipmentwe provide complete sets 150 tons Hydraulic vsi artificial sand crushing making machine vertical shaft impact stone mining machine barmac vsi crusher machine fob price us 5000080000 piece min order 1 piece

Stone Crusher Market In Usargodha Pakistan Pull No

Stone Crusher Market In Usargodha Pakistan Pull No

Vertical curler mill market size stone crusher market in sargodha pakistan pull no 111 portable crushing manufacturers uk market size read more kyc small used portable crushing and screening plant The mills twostory stone storage stone crusher market in sargodha pakistan pull no 111 jaw companies manufacturing crushing plant in pakistan pakistan stone crushing plant road construction limestone crusher Stone crusher market in sargodha pakistan pull no 11 stone crusher aggregate cone crusher crushing capacity home rock crushing plant stone crusher aggregate cone crusher crushing capacity stones cone crusher cone crushe portable gold crusher portable crusher

Malaysia Limestone Crusher Manufacturer In Angola  Grind

Malaysia Limestone Crusher Manufacturer In Angola Grind

Equipment mobile limestone cone crusher provider nigeria cone crushers nigeria malaysia portable dolomite cone crusher manufacturer in angola on jul 8 get price mobile dolomite crusher for sale in angola Crusher run malaysia calculator in meter gold ore crushersgold plant manufacturer in china supplies all kinds of best ore mining and crushing machines for example portable ore crusher grinding mill screening south asia the middle east africa Por le limestone impact crusher provider malaysia por le limestone impact crusher provider malaysia as a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any sizereduction requirements including quarry aggregate

800th To 1000th Stone Crusher Plant

800th To 1000th Stone Crusher Plant

800th1000th mediumhard rock this is a complete mediumhard rock crushing line whose capacity is around 8001000tph for more configurations please click here 800th1000th mediumhard rock this is a complete mediumhard rock crushing line whose capacity is around 8001000tph for more configurations please click here 800th 1000th large scale stone crushing plant no matter the large scale stone crusher plant or the mini crushing machine large scale rock portable crusher 800 to 1000th stone crusher plant large scale mini scale stone crusher for recreational gold mining

Jaw Crusher  Mineral Processing

Jaw Crusher Mineral Processing

Jaw crusher is a robust size reduction equipment designed to reduce large solid materials into smaller particles widely used in the quarrying metallurgical and allied industries jaw crusher is one of the most commonly used primary crushers in the ore processing plant with the capacity range of 11000tph

Jaw Crusher Jaw Crushing Plant  All Industrial

Jaw Crusher Jaw Crushing Plant All Industrial

Stationary for laboratories for mineral material jaw crusher pulverisette 1 premium line capacity 0 kgh 250 kgh jaw crusher is a unique machinery applicable for all types of stones starting from the softest one and ending with the hardest one

Jaw Crusher Industry For Mineral Plant  Factory Wholesale

Jaw Crusher Industry For Mineral Plant Factory Wholesale

Jun 02 2021 jaw crusher prominer shanghai mining technology coltdhigh performance laboratory mini jaw crusher for mineral stone crushing plant henan factory supply best price portable jaw stone crushers plantwo2016181032a1 jaw crusher mineral material processing plant and method for processing mineral material google patentsbulkbuy jaw crusher for mineral

Us20130043335a1  Pitman Of A Jaw Crusher Jaw Crusher

Us20130043335a1 Pitman Of A Jaw Crusher Jaw Crusher

A jaw crusher for crushing mineral material comprising a pitman which comprises an upper art comprising an upper supporting point for supporting the pitman in the body of the jaw crusher and which pitman comprises a lower art comprising a lower supporting point for supporting the pitman in the body of the jaw crusher through a toggle plate

Pdf Material Selection For Crusher Jaw In A Jaw Crusher

Pdf Material Selection For Crusher Jaw In A Jaw Crusher

18 adelana rasaki adetunji et al material selection for crusher jaw in a jaw crusher equipment adopted for various designs chan and zhou 199 4 and dieter 1991

Jaw Crusher Archives  Mineral Processing Amp Metallurgy

Jaw Crusher Archives Mineral Processing Amp Metallurgy

The sepor minijaw crusher is suitable for crushing small quantities of rock and other friable material ranging in hardness from hard quartz to relatively soft claystone it is available with a variety of wear surfaces hardened steel alloy plates for users not concerned with

A Powerful Mobile Jaw Crusher  Mineral Processing

A Powerful Mobile Jaw Crusher Mineral Processing

Just in time for its 70 th anniversary sbm launches a mobile jaw crusher of the latest generation in the new jawmax 200 sbm optimised size and compactness and created the largest possible crusher on an optimal transport chassis sbm thus offers an entrylevel model for construction companies for example for the processing and recycling of demolition waste and is taking a trendsetting

Wear Part For A Jaw Crusher Jaw Crusher Mineral Material

Wear Part For A Jaw Crusher Jaw Crusher Mineral Material

A mineral material processing plant which comprises a frame a feeder and a jaw crusher comprising two opposite jaws which are forming therebetween a crushing chamber for mineral material of which jaws at least a first jaw is movable towards a second jaw and away from the second jaw and at least one jaw comprises at the side of the crushing

Pdf Material Selection For Crusher Jaw In A Jaw Crusher

Pdf Material Selection For Crusher Jaw In A Jaw Crusher

The pivoted jaw swings around the pivot and make impact on the fixed jaw crushing the fed lumps in the jaw crusheressentially the task of selection is that of matching the choice of material to the requirements of the design ashby 2005 and charles etal 1997 novel or well selected materials provide designers with excellent features

Mineral Jaw Type Crushers  Apartamenty247pl

Mineral Jaw Type Crushers Apartamenty247pl

Jaw crusher a jaw crushers is a crushing machine designed considering a primary stage crushability for materials such as rock mineral rom and building rubble jaw crushers design focuses on compression type crushing with feed of material being received from the top of the crushing chamber that consists one side fix and other movable type cast

Jaw Crusher Explained  Savree

Jaw Crusher Explained Savree

A crusher is a machine designed to reduce the size of large rocks to smaller rocks gravel sand or rock dust this is essential for efficient transport of the product via conveyors etc crushing is the first of many stages that lead to separation of the minerals from the waste gangue material waste material can be discarded or recycled

Mineral Processing Laboratory Manual  Vssut

Mineral Processing Laboratory Manual Vssut

To crush the of coal in a primary jaw crusher blake jaw crusher and determination of average product size by the use sieve shaker materials apparatus required 1 coal 2 different sieve screens of astm size 3 black jaw crusher 4 weight balance 5 rotap sieve shaker theory blake jaw crusher it has its moving jaw pivoted at the top

Wear Part For A Jaw Crusher Jaw Crusher Mineral Material

Wear Part For A Jaw Crusher Jaw Crusher Mineral Material

A jaw crusher a mineral material processing plant and a method for fixing a wear part to a jaw of a jaw crusher in a detachable manner a wedge tightening coming from three directions is locking the wear part in a centering way in place relative to any possible transfer direction

Ap42 Section 11192 Crushed Stone Processing And

Ap42 Section 11192 Crushed Stone Processing And

Primary crusher jaw impactor or gyratory crushers are usually used for initial reduction the crusher product normally 75 to 30 centimeters 3 to 12 inches in diameter and the grizzly throughs undersize material are discharged onto a belt conveyor and usually are conveyed to a

Jaw Crusher  Jaw Breaker  Jaw Crushing Machine  Primary

Jaw Crusher Jaw Breaker Jaw Crushing Machine Primary

Jaw crusher a type of crusher is designed to reduce material usually rocks into small pieces jaw crusher machine uses motor as its power through the motors wheels the eccentric shaft is driven by the triangle belt and slot wheel to make the movable jaw plate move by a regulated track

Jaw Crusher  Mineral Crushing Amp Aggregate Processing

Jaw Crusher Mineral Crushing Amp Aggregate Processing

Jaw crusher is widely used to crush materials into medium size in the first crushing process of ore rocks so your rocks would get be ready for the secondary crushing it had a wide range of suitable materials such as granite marble basalt limestone quartz pebble iron ore copper ore and so on the jaw crusher is applicated in mining

Industrial Solutions Jaw Crushers

Industrial Solutions Jaw Crushers

Toggle jaw crushers for extremely hard materials and abrasive rock call on our services and you can count on a wealth of experience and constant innovative drive as a leading manufacturer of machines and plants for the aggregates and mining industry we supply wellengineered crushing

Jaw Crusher  An Overview  Sciencedirect Topics

Jaw Crusher An Overview Sciencedirect Topics

The capacity of jaw crushers is a measure of the mass or volume of crushed material produced in unit time of operation the capacity is primarily a function of 1 crusher design characteristics such as width and depth of the crushing chamber 2 open and closed side settings

Jaw Crusher Used For Mineralore Crushing  Xinhai

Jaw Crusher Used For Mineralore Crushing Xinhai

Jaw crusher used for mineral crushingore crushing due to the features of simple structure reliable performance convenient maintenance and safe use jaw crusher of various models are widely used in the crushing operation in metallurgy mining building materials

Crushers Pulverizers Amp Mills  Gilson Co

Crushers Pulverizers Amp Mills Gilson Co

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

Technical Notes 5 Crushers  Mineral Tech

Technical Notes 5 Crushers Mineral Tech

Figure 51 schematic diagram of a crusher showingg the open and closedside settings 51 jaw and gyratory crushers jaw and gyratory crushers are used mostly for primary crushing they are characterized by wide gape and narrow discharge and are designed to handle large quantities of material the capacity of the crusher is determined by its size

Mineral Jaw Type Crushers  Apartamenty247pl

Mineral Jaw Type Crushers Apartamenty247pl

Jaw crusher a jaw crushers is a crushing machine designed considering a primary stage crushability for materials such as rock mineral rom and building rubble jaw crushers design focuses on compression type crushing with feed of material being received from the top of the crushing chamber that consists one side fix and other movable type cast

Stainless Steel Jaw Crusher Rs 80000 Onwards Skl Mineral

Stainless Steel Jaw Crusher Rs 80000 Onwards Skl Mineral

Skl mineral processing equipment offering stainless steel jaw crusher at rs 80000onwards in mumbai maharashtra read about company get contact details and address id 3872482412

Krushtech  Compact Mobile Jaw Crushers Manufacturer

Krushtech Compact Mobile Jaw Crushers Manufacturer

Our crusher compact design and quick set up time make them particularly efficient to onsite crushing reduce your construction or demolition wastes size directly from concrete to all other mineral materials and save money on waste transport with lower volumes

Jaw Crusher Jaw Crusher Price Jaw Crusher Specification

Jaw Crusher Jaw Crusher Price Jaw Crusher Specification

Jaw crusher is widely used in mining building materials chemical industry metallurgy highway and railway water conservancy and so onxinhai as famous jaw crushers manufacturer will provide suitable jaw crusher price and machine selection for you

Jaw Crusher  Home  Facebook

Jaw Crusher Home Facebook

Jaw crusher 706 likes 2 talking about this jaw crusher is ideally suitable for primary and secondary crusher for material with compression strength less than 320mpa

Mineral Sizer Vs Rock Jaw Crusher  Ruttigaragech

Mineral Sizer Vs Rock Jaw Crusher Ruttigaragech

May 13 2019 additionally jaw crusher feed should be prescreened using a grizzly screen prior to crushing to remove material finer than the closedside setting setting jaw crushers ideally the reduction ratio of a jaw crusher jaw crusher for mineral processing jaw rock crusher design

China Crusher Manufacturer Jaw Crusher Grinding Mill

China Crusher Manufacturer Jaw Crusher Grinding Mill

Crusher jaw crusher grinding mill manufacturer supplier in china offering new designed stone crusher plant with 50800tph 400ton per hour stone jaw crusher machine for sale high efficiency aggregate mobile jaw crusher supplier and so on

Jaw Crusher Explained  Savree

Jaw Crusher Explained Savree

A crusher is a machine designed to reduce the size of large rocks to smaller rocks gravel sand or rock dust this is essential for efficient transport of the product via conveyors etc crushing is the first of many stages that lead to separation of the minerals from the waste gangue material waste material can be discarded or recycled

Jaw Crusher  Eastman Rock Crusher

Jaw Crusher Eastman Rock Crusher

Jaw crusher is a compression style rock crusher useful in crushing the mediumhard to very hard material into a smaller particle size at primary crushing stage in the crushing circuit applications mining quarry construction waste recycling aggregate making etc materials limestone cobblestone cobblestone quartz basalt iron ore granite shale sandstone gypsum and a variety of ores

Alsto Jc3020 Jaw Crusher  Mineral Stats

Alsto Jc3020 Jaw Crusher Mineral Stats

Alsto jc3020 jaw crusher the alsto jc3020 jaw crusher is a large unit suitable for either laboratory use to process samples with larger particle sizes or plant applications its rugged construction and high reduction capabilities together with low maintenance requirements make it an outstanding workhorse for a large variety of applications

Jaw Crusher Mineraljaw Crusher

Jaw Crusher Mineraljaw Crusher

Jaw crusher jaw crusher is a kind of stone crusher which is used widely in many industrial departments including mining smelt metal building materials public road railway water conservation chemical industry and so on and it is also called rock crusher

Technical Notes 5 Crushers  Mineral Tech

Technical Notes 5 Crushers Mineral Tech

Figure 51 schematic diagram of a crusher showingg the open and closedside settings 51 jaw and gyratory crushers jaw and gyratory crushers are used mostly for primary crushing they are characterized by wide gape and narrow discharge and are designed to handle large quantities of material the capacity of the crusher is determined by its size

A Powerful Mobile Jaw Crusher  Mineral Processing

A Powerful Mobile Jaw Crusher Mineral Processing

Just in time for its 70 th anniversary sbm launches a mobile jaw crusher of the latest generation in the new jawmax 200 sbm optimised size and compactness and created the largest possible crusher on an optimal transport chassis sbm thus offers an entrylevel model for construction companies for example for the processing and recycling of demolition waste and is taking a trendsetting

Crushers Pulverizers Amp Mills  Gilson Co

Crushers Pulverizers Amp Mills Gilson Co

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

Pdf Material Selection For Crusher Jaw In A Jaw Crusher

Pdf Material Selection For Crusher Jaw In A Jaw Crusher

18 adelana rasaki adetunji et al material selection for crusher jaw in a jaw crusher equipment adopted for various designs chan and zhou 199 4 and dieter 1991

Alsto Jc2013 Jaw Crusher  Mineral Stats

Alsto Jc2013 Jaw Crusher Mineral Stats

Alsto jc2013 jaw crusher the alsto jc2013 is a reliable heavy duty crusher designed for general laboratory applications ready and able to crush a large variety of sample types quickly and efficiently

Mineral Processing Laboratory Manual  Vssut

Mineral Processing Laboratory Manual Vssut

To crush the of coal in a primary jaw crusher blake jaw crusher and determination of average product size by the use sieve shaker materials apparatus required 1 coal 2 different sieve screens of astm size 3 black jaw crusher 4 weight balance 5 rotap sieve shaker theory blake jaw crusher it has its moving jaw pivoted at the top

Mineral Processing Equipment  African Pegmatite

Mineral Processing Equipment African Pegmatite

The size of the feeder at the top of the crusher usually denotes the size of the jaw crushers and the size of unprepared aggregate or ore the machinery can handle as the name suggests the jaw crushers are aligned into a v shape and act with a jaw movement using hydraulic or pneumatic compression to crush materials to the desired size

Mineral Jaw Type Crushers  Apartamenty247pl

Mineral Jaw Type Crushers Apartamenty247pl

Jaw crusher a jaw crushers is a crushing machine designed considering a primary stage crushability for materials such as rock mineral rom and building rubble jaw crushers design focuses on compression type crushing with feed of material being received from the top of the crushing chamber that consists one side fix and other movable type cast

Pe Jaw Crusher Jaw Crusher Price Jaw Crusher For Sale

Pe Jaw Crusher Jaw Crusher Price Jaw Crusher For Sale

Pe jaw crusher jaw crusher is used for crushing all kinds of ores and rocks with compressive strength below 320mpa it is generally used for primary crushing of materials the machine is widely used in mining building materials metallurgy electric power water conservancy transportation and many other fields 008637163769782

Mineral Crusher Mineral Crusher Suppliers And

Mineral Crusher Mineral Crusher Suppliers And

A wide variety of mineral crusher options are available to you such as 6 months 3 months you can also choose from egypt indonesia mineral crusher as well as from long service life easy to operate and competitive price mineral crusher and whether mineral crusher is manufacturing plant construction works or building material shops

Jaw Crusher Explained  Savree

Jaw Crusher Explained Savree

A crusher is a machine designed to reduce the size of large rocks to smaller rocks gravel sand or rock dust this is essential for efficient transport of the product via conveyors etc crushing is the first of many stages that lead to separation of the minerals from the waste gangue material waste material can be discarded or recycled allowing the mineral rich product to be further processed at the main plant

Wo2016181032a1  Jaw Crusher Mineral Material Processing

Wo2016181032a1 Jaw Crusher Mineral Material Processing

Jaw crusher mineral material processing plant and method for processing mineral material download pdf info publication number wo2016181032a1 wo2016181032a1 pctfi2016050263 fi2016050263w wo2016181032a1 wo 2016181032 a1 wo2016181032 a1 wo 2016181032a1 fi 2016050263 w fi2016050263 w fi 2016050263w wo 2016181032 a1 wo2016181032 a1 wo

Mineral Material Crusher Mineral Material Crushing Plant

Mineral Material Crusher Mineral Material Crushing Plant

Stationary for laboratories for mineral material jaw crusher pulverisette 1 classic line capacity 0 kgh 200 kgh the compact pre crusher the compact fritsch jaw crusher pulverisette 1 classic line is the ideal instrument for fast and effective precrushing of hard and very hard brittle materials

New Mineral Jaw Crusher New Mineral Jaw Crusher Suppliers

New Mineral Jaw Crusher New Mineral Jaw Crusher Suppliers

Alibabacom offers 7910 new mineral jaw crusher products a wide variety of new mineral jaw crusher options are available to you such as warranty of core components local service location and key

For Small Miners Mineral Equipment Pe150100 Small

For Small Miners Mineral Equipment Pe150100 Small

Feb 22 2021 for small miners mineral equipment pe150100 small laboratory jaw crusher china mobile mini jaw crusher portable jaw crusher for sale it is generally used for primary crushing of materials laboratory jaw crusher lab jaw crusher latest price china small pef10060 stone lab jaw crusher

Us20130043335a1  Pitman Of A Jaw Crusher Jaw Crusher

Us20130043335a1 Pitman Of A Jaw Crusher Jaw Crusher

A jaw crusher a crushing plant and a method for increasing crushing capacity of mineral material

Causes Of Material Blocking In Jaw Crusher  Prominer

Causes Of Material Blocking In Jaw Crusher Prominer

Mar 22 2021 the jaw crusher is the first process for rock crushing it can process various ores with a compressive strength not higher than 320mpa to a medium particle size at one time often with hammer crushers cone crusher impact crusher sand making machine etc together constitute a complete sand production line which is widely used in mining metallurgy chemical building materials electricity

Pdf Material Selection For Crusher Jaw In A Jaw Crusher

Pdf Material Selection For Crusher Jaw In A Jaw Crusher

Nov 09 2015 18 adelana rasaki adetunji et al material selection for crusher jaw in a jaw crusher equipment adopted for various designs chan and zhou 199 4 and dieter 1991

Crushing In Mineral Processing  911 Metallurgist

Crushing In Mineral Processing 911 Metallurgist

Dec 26 2015 typical hardrock crushers like jaw gyratory and cones break rock by nipping the ore between a fixedstationary and a moveable wearresistant surfaceliner how much reduction each crushing stage is capable of infliction of rocks reduction ratio is driven by the angles between the 2 surfaces on each side and holding the rockstobecrushed as the move towards and away from each