PE Series Jaw Crusher is one of the most common crushing equipment. It is mainly applied in crushing the material with the compressive strength under 320Mpa. PE Series Jaw Crusher is usually used in the field of mining, metallurgy, road & railway construction, water conservancy, chemical industry and so on. The Jaw Crusher of medium and large size designed and manufactured by our company have reached the advanced level with the features of high crushing ratio, high capacity, uniformed product size, simple structure, reliable operation, easy maintenance and low operation.
PE/PEX Series Jaw Crusher is of single toggle type, and used widely in mine, metallurgy, construction, road, railway, hydro-electric, and chemistry. It is suitable for the primary or secondary crush of large rock with compressive resistance no more than 320MPa. PE is used for primary crushing, and PEX is used for secondary and fine crushing.
Main components of jaw crusher is consist of main frame, eccentric shaft, driving wheel, fly wheel, side protecting plate, toggle, toggle seat, gap adjustment rod, reset spring, fixed jaw plate and movable jaw plate. Toggle plays role of protection.
Powered by electrical motor, movable jaw is set in reciprocate movement at predetermined track through the transmission system of driving wheel, Vee-belt, and eccentric roll-driving shaft. The material is crushed in the cavity composed by fixed jaw plate, movable plate, and side protecting plate, and discharged the end product from the bottom discharge opening.
This series jaw crusher adopts curve-movement compression way to crush the material. Electric motor drives belt and belt wheel to set the movable plate in moving up and down through eccentric shaft. When the movable jaw rises, the angle formed by toggle and movable plate will be wider, and the jaw plate will be pushed approaching the fixed plate. In this way, the materials are crushed through compressing, grinding, and abrading. When the movable plate descends, the angle formed by toggle and movable plate will became narrower. Pulled by rod and spring, the movable plate will move apart from toggle, so the crushed materials can be discharged from the bottom of the crushing cavity. Consecutive movement of motor drives the movable plate in circular crushing and discharge to realize large-quantity production.
The size requirement of the primary rock crusher is a function of grizzly openings, ore chute configuration, required throughput, ore moisture, and other factors. Usually, primary crushers are sized by the ability to accept the largest expected ore fragment. Jaw crushers are usually preferred as primary crushers in small installations due to the inherent mechanical simplicity and ease of operation of these machines. Additionally, jaw crushers wearing parts are relatively uncomplicated castings and tend to cost less per unit weight of metal than more complicated gyratory crusher castings. The primary crusher must be designed so that adequate surge capacity is present beneath the crusher. An ore stockpile after primary crushing is desirable but is not always possible to include in a compact design.
Many times the single heaviest equipment item in the entire plant is the primary crusher mainframe. The ability to transport the crusher main frame sometimes limits crusher size, particularly in remote locations having limited accessibility.
In a smaller installation, the crushing plant should be designed with the minimum number of required equipment items. Usually, a crushing plant that can process 1000s of metric tons per operating day will consist of a single primary crusher, a single screen, a single secondary cone crusher, and associated conveyor belts. The discharge from both primary and secondary crushers is directed to the screen. Screen oversize serves as feed to the secondary crusher while screen undersize is the finished product. For throughputs of 500 to 1,000 metric tons per operating day (usually 2 shifts), a closed circuit tertiary cone crusher is usually added to the crushing circuit outlined above. This approach, with the addition of a duplicate screen associated with the tertiary cone crusher, has proven to be effective even on ores having relatively high moisture contents. Provided screen decks are correctly selected, the moist fine material in the incoming ore tends to be removed in the screening stages and therefore does not enter into subsequent crushing units.
All crusher cavities and major ore transfer points should be equipped with a jib-type crane or hydraulic rock tongs to facilitate the removal of chokes. In addition, secondary crushers must be protected from tramp iron by suspended magnets or magnetic head pulleys. The location of these magnets should be such that recycling of magnetic material back into the system is not possible.
Crushing plants for the tonnages indicated may be considered to be standardized. It is not prudent to spend money researching crusher abrasion indices or determining operating kilowatt consumptions for the required particle size reduction in a proposed small crushing plant. Crushing installations usually are operated to produce the required mill tonnage at a specified size distribution under conditions of varying ore hardness by the variation of the number of operating hours per day. It is normal practice to generously size a small crushing plant so that the daily design crushing tonnage can be produced in one, or at most two, operating shifts per working day.
Shanghai Zenith crusher official website, is professional in providing crusher, jaw crusher, cone crusher, impact crusher, and other series and models of crushers. They are widely used in mining, construction, stone crushing, metal ore crushing, solid waste disposal, as well as highway construction, water conservancy, refractories, sand processing and other fields.
Shanghai Zenith Company is the most professional manufacturer of crushers, all crushers are designed, manufactured, assembled and tested in accordance with ISO9001: 2000 international quality system certification standards, sales network covering more than 130 countries and regions. Welcome to contact us online about crusher's prices, models, drawings, working principle and technical parameters and other information.
From Zenith first generation jaw crusher to the latest one, Zenith has been insisting on developing the best jaw crusher that able to help customers get much more profit. According to an in-depth study
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