2 Construction Working and Maintenance of Crushers for Crushing Bulk Materials Content Chapter Title Page No 1 Crushers for Bulk Materials 3 2 Gyratory Crushers 8 3 Jaw Crushers 12 4 Cone Crushers 20 5 Roll Crushers 23 6 Low Speed Sizers 26 7 Horizontal Shaft Impactors 29 8 Ring Granulators 42
Gyratory Crushers Gyratory crushers shown in Figures 4 and 5 have a conical head with an eccentric movement inside an outer concave bowl Slabby rocks tend to slide down the crushing chamber untouched until their width equals the discharge dimension Jaws can be concave to encourage rock falling lower in the crushing chamber preventing
Additionally the Blake jaw crusher is more expensive than other types of jaw crushers Gyratory crusher A gyratory crusher is a type of crusher that uses a mantle to guide the crushing process The mantle is suspended on an eccentrically rotating shaft which causes the mantle to gyrate The gyratory crusher has a higher capacity than a jaw
It is the first stage in the crushing process that can sometimes include secondary tertiary and even quaternary crushing stages depending on the material and the end product requirements Types of Primary Crushers There are several types of primary crushers including Gyratory Crushers Jaw Crushers Hammermills
4 Gyratory Crushers Gyratory crushers feature a conical head and concave surface often lined with manganese steel and break apart material by compression through what is known as eccentric movement Like jaw crushers gyratory crushers are often utilized in primary crushing stations though they may sometimes be used as secondary crushers as
What Are Rock Crushers Rock crushers are used to reduce the size of rocks into gravel or rock dust Crushers can be used to reduce the size or change the form of rocks by breaking them down into smaller pieces The different types of rock crushers are jaw crushers gyratory crushers cone crushers and impact crushers The main types of rock
Metso Outotec s line of Superior Primary Gyratory crushers are designed to meet the demand for high efficiency and high capacity mining installations Superior MKIII is the first high speed Gyratory The new features allow significant CAPEX reduction of a primary crushing stage from the retaining wall to the primary stock pile
Gyratory crushers play a pivotal role in the mining and aggregate sectors efficiently crushing a variety of ores and rocks The choice of the right gyratory crusher and its parts is critical as it significantly influences the performance and profitability of your mining operations At Kenmore we re committed to ensuring you receive the
Energy Efficiency Cone crushers and gyratory crushers while more energy intensive can offer more efficient crushing for hard rock over jaw crushers In summary for very hard rocks primary crushing is effectively handled by jaw and gyratory crushers while secondary and tertiary crushing stages are best served by cone crushers with impact
High performance high reliability hard rock crushing FLS jaw crushers are built for high capacity primary crushing applications and engineered to last The main characteristic of our jaw gyratory crushers is their enlarged feed opening which is located on one side of the crusher only It is normally serrated and together with the upper
Stationary gyratory crushers CG830i Capacity by hour 2 700 6 000 mtph 2 980 6 610 stph Well designed crushing chambers built from strong materials make a fulcrum point that ensures a constant eccentric throw guaranteeing up to 90% of feed opening Sandvik Rock Processing Solutions Sandvik Rock Processing Solutions Sandvik Rock
Parts for cone and gyratory crushers Wear parts THOR technology Spare emergency and capital parts NovaTHOR a next generation compound for fertilizers — each enterprise grinds thousands of tons of rock every day The cost of crushing is more than 60% of the cost of the entire production cycle and the most expensive process here is
Over 1 000 tph select a gyratory crusher Between these capacities you have a choice Source Chris Ottergren; For a hard rock mine application below 540 tonnes/hour a jaw crusher is more economical Above 725 tonnes/hour jaw crushers cannot compete with gyratory crushers at normal settings 6 10 inches Source Lewis Cobourn and Bhappu
Crushing of rock and minerals Crushing is the largest process operation in minerals processing The gyratory crushers are robust crushers with m odern features
Jaw Crushers Ideal for primary crushing of large rocks They are known for their ability to handle large feed sizes and for their reliability Cone Crushers Suitable for secondary and tertiary crushing They are well suited for crushing medium to hard materials Impact Crushers Best for processing softer and less abrasive materials They
Our range of gyratory crushers is designed to meet the demands of any project and can process up to 5000 tons per hour The gyratory crusher has the capacity of crushing large volumes of rock or ore offering an efficient and continuous solution Compared to jaw crushers gyratory crushers offer the following advantages
Gyratory crushers are better for larger materials crushing Gyratory crushers are better at crushing large boulders while cone crushers are better at handling smaller rocks Cone crushers are more affordable Gyratory crushers tend to be more expensive but can crush more material in a single pass
Gyratory crushers are principally used in surface crushing plants The gyratory crusher Figure consists essentially of a long spindle carrying a hard steel conical grinding element the head seated in an eccentric spindle is suspended from a spider and as it rotates normally between 85 and 150 rpm it sweeps out a conical path within the fixed crushing
The Rock Abrasiveness Index RAI introduced in 2002 is often used to categorize abrasiveness This informs a rock s resistance to crushing as well as its wear and tear on the crusher Highly abrasive rocks include granite quartzite and basalt Gyratory crushers and cone crushers are quite similar A gyratory crusher has a higher
2 Gyratory crusher A gyratory crusher is one of the most in demand primary crushers for stone crushing plants It can process rocks metal ores granite and other solid minerals of medium to high hardness Gyratory crushers may be huge and capital intensive but they excel in high capacity operations
Several machines such as jaw gyratory or roll crushers use the physical effect of compression to crush hard and brittle rocks Because of the tremendous expenditures of money and equipment necessary to investigate the comminution of large particles hardly any scientific investigations were carried out so far
