30-800 Tons/hr Production Capacity Covered. CE Africa (Pty) Ltd Mobile Jaw Crusher Series have strong adaptability which are suitable for processing various raw materials from soft rock to hard rock, such as limestone, bassalt, iron, ore, slag and other materials. The maximum feed size is 450 mm – 1000 mm.

DEFINITION. The primary crusher selection is the key to the success of any mining operation that involves the reduction in size of the ore. The crushing plant can be provided with almost any type of primary rock crusher. The rock/ore determines the type of crusher. The plant capacity determines the size of the crusher.

The fines from the grizzly and the crusher discharge pass by gravity and/or conveyor to a Combination Scrubber and Trommel. Here, further scrubbing and washing takes place to separate the ore into two fractions, usually plus and minus ½ inch. The coarse washed fraction is further reduced in a Secondary Cone Crusher without difficulty.

The secondary crusher reduces the size of the ore particles to 0.5-2 cm in diameter. This stage is important in the crushing process as it allows for the separation of the iron ore from the waste ...

The type of secondary crusher will vary according to the characteristics of the ore. Usually a cone type crusher is recommended for this secondary crushing, although in many cases a jaw crusher can be used as the secondary crusher, setting up the jaws closer than in the primary crushing operation.

A gyratory crusher is a primary crusher used in the mining and ore processing industry. It is characterized by its large feed opening, which is designed to accept and process very large quantities of material. ... A cone crusher is a type of secondary crusher that is used to reduce large rocks into smaller pieces by …

A crusher is a machine designed to reduce the size of Run of Mine (ROM) large rocks to smaller rocks, gravel, sand, or rock dust; this is essential for efficient transport of the ore via conveyors etc. Crushing is the first of …

Types of crushers. Crushers are classified into three types based upon the stage of crushing they accomplish. These are (i) primary crusher, (ii) secondary crusher, and (iii) tertiary crusher. The primary …

Secondary coal crusher: Used when the coal coming from the supplier is large enough to be handled by a single crusher. The primary crusher converts the feed size to one that is acceptable to the secondary crusher. ... In some industries, for example, iron ore or coal, where a specific product size is required (iron ore –30 + 6 mm), ...

The function of the primary crusher is to break down the larger rocks and stones into manageable sizes, while the function of the secondary crusher is to further refine these sizes into the desired product. The secondary crusher operates by compressing the material between two surfaces, similar to the primary crusher.

1. The capacity of a crusher is how much it can crush in a certain amount of time, often talked about in tons per hour. Secondary crushers can handle from 50 to 300 tons per hour, depending on the type and how you use it. It's important to pick a crusher that can handle the amount of work without being too slow or costing too much.

After the mine has blasted the ore, the first reason why we crush rock is really to be able to transport it onto the next same. ... Secondary: Cone/HPGR. 6″-18″ (150-450mm) 1 1/4″-5″ (40-130mm) Tertiary/Quaternary. Cone/HPGR: ... The Crusher throw is defined as the distance in the direction of compression the moving crushing surfaces ...

DOVE Jaw Crushers are ideal rock crusher machines, highly efficient and economical for handling Primary and Secondary stone crushing applications of various ores and bulk materials with compressive strength below 320 MPa.DOVE Crushers are supplied in Stationary complex plant configuration, or in Portable and Mobile configuration.. …

Whether it is primary, secondary or tertiary crushing, dump fed or metered, our sturdy, versatile Sizers have been expertly designed to handle many different materials and throughput capacities. Not only are Sizers insensitive to soft, wet and sticky material, but they can also process hard, abrasive rock either separately or combined. Discover ...

6.2.3 Roll crusher circuit design. Roll crushers are generally not used as primary crushers for hard ores. Even for softer ores, such as chalcocite and chalcopyrite, they have been used as secondary crushers. Choke feeding is not advisable as it tends to produce particles of irregular size. Both open and closed circuit crushing is employed.

Cone crusher is used in mining, road & rail construction. It is mainly used as a secondary grinder because it is designed to grind hard or medium ore such as iron ore, pebble, limestone, granite and basalt. It is also used as a compression machine to reduce steel material size. Final size is determined by the narrowest gap at the bottom.

Secondary crushers typically include (but are not limited to) Cone Crushers, Horizontal Shaft Impactors, Hammermills and Roll Crushers. Occasionally, a Jaw Crushermay be applied as a secondary crusher. Cone Crushers Cone Crushersare compression-type crushers, which reduce …

The purpose of the primary crusher is to reduce the ROM ore to a size amenable for feeding the secondary crusher or the SAG mill grinding circuit. The ratio of reduction through a primary crusher can be up to …

While jaw and gyratory crushers compete for primary crushing, gyratory and cone crushers share the secondary field. How to Feed a Crusher. ... Colorado Springs, treating Cripple Creek and other ores, a 5½-ft. cone crusher is fed with ore of 3½ to 4 in. maximum size which has passed over a vibrating screen having 0.18- by 0.9-in ...

The primary crusher is mainly divided into gyratory crusher, jaw crusher, hammer crusher, etc. In addition to its own buildings and equipment, the primary crushing station also needs supporting facilities, such as upper ore bin, lower ore bin, conveyor gallery, oversize component gallery air raise, dedusting chamber, measurement …

A high-quality hammer crusher can keep final material passing a twenty mesh, fifty to sixty percent passing a fifty-mesh screen. Crusher hammers are high chrome content. The hammer …

® TC Series Cone Crushers. The ® TC Series cone crusher is the latest iteration of the live-shaft cone crusher. This design has been proven to perform in heavy-duty secondary and tertiary crushing applications being tough, reliable, simple to operate and easy to maintain. They are also effective for pebble crushing applications.

Learn about the different types of secondary crushers, including impact crushers, cone crushers, roll crushers, and jaw crushers, and their functions, …

Cone Crushers are compression-type crushers that are typically found in secondary crushing stages but can be used as the primary crusher in certain …

Similar to a jaw crusher, the gyratory crusher pulverizers the stones by placing them between two manganese steel plates and going straight down. It does not rotate, rather it is powered by electricity. Gyratory crushers are used in mine or ore processing plants and they can be used for primary or secondary crushing.

The new HAZEMAG concept combines the knowledge gained from over 70 years of crusher design and manufacture, with the practical experience and operational needs of plant operators. The HSI series of secondary impactors have been designed for economic crushing and, depending on how the equipment is configured, are capable of processing …

It also has a narrower feed opening and a longer parallel section at the discharge, and delivers a product of ca. 0.3–2.0 cm. Contemporary secondary (Figure 6.9(c)) and tertiary (Figure 6.9(d)) cone crusher designs have evolved and geometry varies depending on the ore type, feed rate, and feed and product particle size.

Again the ore will come from a Primary crusher and be scalped. The coarse material will be crushed by the secondary crusher. The fines will be taken out of the circuit. Once the secondary has finished with the ore it will be reclassified by a second set of screens with the oversize going to the tertiary crusher.

In most applications, the secondary crusher has a primary target of maximizing the reduction ratio and reducing the top size and F80 for the downstream equipment. …

In the mining industry, secondary crushers are used to reduce the size of ore extracted from the primary crusher. In the construction industry, secondary crushers are used to produce concrete and asphalt. Factors to consider when selecting a secondary crusher. When selecting a secondary crusher, there are several factors that need to …