Hi, Welcome to factory !
Chat Online
Zhengzhou China
If you are a rock, sand, gravel, or mineral processingindustry veteran or an avid reader of our blog, you know that there are severaldifferent types and styles of crushingequipment. The exact crushers you needjaw, cone, impact, or gyratorywilldepend on your site, the product youre making, and how much you need toproduce.
Free quote
An individual crushers construction and capabilities alsodictate where in your processing operations it will fit. That is, you may havemultiple types of crushers situated in primary, secondary, and tertiarystations in a circuit format to perform the necessary material reduction work.Each type of crusher brings unique strengths and benefits to the process.
Todays post focuses on compression-style jaw crushers,which are most often employed in the primarystage of a crushing circuit. Its important to know that cone crushers aresometimes used in their place, and well also talk a little bit about when cone crushersmay be preferred over jaw crushers.
Due to their smaller physical size, jaw crushers are alsoideal for tight spaces, such as underground mining and mobile crushingapplications, where some other primary crushing solutions simply do not fit.
Jaw crushers have been around for nearly 200 years at this point and are one of the most historic crusher types. Because of this, jaw crushers have advanced technologically through the years to make them more durable and to improve their movement to reduce choking and increase operational speed. These design tweaks over time have perfected a machine thats simple enough in its working principle that it may never truly become obsolete.
Today, two main jaw crusher configurations are what you willsee from the major equipment manufacturers. They differ based on how the swingjaw moves, though their output is similar.
Double toggle movement jaw crushers like the Blake style named for the inventor of the first successful mechanical jaw crusher, Eli Whitney Blake, have long been the standard used for crushing hard and abrasive rocks, as well as sticky feeds. These jaw crushers have high energy efficiency. The overhead pivot design further reduces wear and tear on crusher faces versus the Blake style.
More compact than double toggle designs, the single toggle movement jaw crusher was at one time unable to accept such large feed sizes, though it can typically run faster. Technological innovations solved the feed size issue, and now these machines are quite popular for how quickly they work. They do experience a bit more wear and tear than the double toggle style crushers, however. Of course, wear parts are widely available and economical, so this fact has not prevented the single toggle design from catching on.
As we touched on above, different jaw crusher designs willoperate slightly differently, but how they work is similar across the board.All jaw crushers reduce large sized rocks, ore, or other material by acompression action. A fixed jaw, mounted in a V-shaped alignment, is thestationary breaking surface, while a movable, swing jaw exerts force on the feedmaterial by pushing it against the stationary plate.
Laboratory Crushers are available with four sizes of jaw openings and various capacities to suit the needs of batch laboratories and all continuous laboratory test plants and pilot test plants. Various construction features on the three types of Laboratory Jaw Crushers ensure their ruggedness and durability for constant usage over long periods of time. All units have main frame cast in one
Jaw crusher work safely and efficiently . Jaw Crusher Work Safely And Efficiently jaw crusher how does it made Jaw crusher C120 drives made from specially developed composite materi- als, which makes the unit The C120 jaw crusher is designed to be safe to operate and. jaw crusher making process - NAMARI Heavy Machinery. jaw crusher making process Benefits of UsingJaw Crusher
Jaw crusher with diesel engineenergy saving efficient jaw crusher with diesel engineenergy saving efficient Jaw crusher with diesel engineenergy saving efficienteconomic moving economic stone mobile crusher us 1000 67000 set new jaw crusher , igh efficient widely using double move jaw crusher.
Single toggle jaw crusher the movable jaw is suspended from the mandrel and swings from side to side when the eccentric axis rotates the connecting rod moves up and down and drives the two thrust plates to move back and forth as well thus pushing the jaw to move left and right to move back and forth realizing crushing and discharging.
Zys highefficiency cone crusher is an efficient and optimized machine based on py series spring cone crusher it is widely used in mining building materials metallurgy and other industries and can carry out medium and fine crushing operations on medium and medium hardness materials such as various metal ores basalt granite limestone.
Laboratory Jaw Crushers are designed for economic size reduction of typical aggregates and common minerals at an output scaled for laboratory testing. Adjustable jaw openings allow close control of output size. High operating rpm promotes efficient size reduction with lower dust generation compared to other crushers and pulverizers.
KPI-JCI and Astec Mobile Screens has made significant changes to its new generation Vanguard Jaw Crusher that are designed to reduce producer maintenance, increase energy and performance and maximize service and maintenance.
The Vanguard Jaw Crusher features replaceable wear parts to protect producers investment in their equipment. Without proper protection, high wear areas of a machine can significantly reduce its lifespan. The Vanguard Jaw Crushers replaceable jaw die seats and replaceable barrel protector plate are two enhancements that decrease producers exposure to costs inflicted by everyday wear and tear of normal use, according to Ron Griess, product manager for KPI-JCI and Astec Mobile Screens.
In addition to replaceable wear parts, the new generation Vanguard Jaw Crusher provides simpler maintenance with its jaw die wedges. In the new design, jaw die retention wedges hold the jaw die in place, providing easy access to the jaw die and efficient removal and replacement. In addition, the new design contains lifting holes on all Vanguard jaw dies so lifting lugs are no longer required to be welded. These advancements yield less downtime between jaw die replacement and other maintenance intervals, Griess said.
Another significant change to the Vanguard Jaw Crusher is the elimination of the manual shim adjustment method to change the crushers closed side setting. Unlike competitors who still use traditional shim plates to adjust the closed side setting, the Vanguard Jaw Crusher utilizes hydraulic cylinders.
This new design employs a hydraulic wedge system, which provides quick and easy discharge settings while enhancing operator safety, Griess said. Allowing this convenience for producers allows them to be more successful in their operations by reducing downtime.
The new design components including increased stroke, toggle angle and flywheel inertia also enable producers to achieve increased performance, Griess said. The five largest Vanguard Jaw Crushers crush with a 1 stroke, which opens up wider and compresses material more, allowing aggregate to get crushed and through the jaw faster. The Vanguard Jaw FT3055 and FT3144 are the only jaw crushers in their class with a 1 stroke.
Additionally, the Vanguard Jaw Crushers aggressive toggle plate angle gives more movement to the bottom of the pitman, resulting in more crushing per stroke. Its flywheel inertia allows the crusher to function while reducing energy input. By using large, dynamically-balanced flywheels, peak horsepower requirements are reduced, yielding greater efficiencies and fewer fuel costs.
With the increased energy and performance, producers can expect the Vanguard Jaw Crusher to deliver up to 25 percent more tons per hour than comparable jaw crushers, Griess said.
Components such as the common flinger collar, stress-relieved base frame and machined saddle work together to increase the lifespan of the machine. The Vanguard Jaw Crusher uses the common flinger collar between the saddle block bearing and the pitman bearing. Using the same collar allows the bearings to be located together, greatly reducing the shaft deflection and therefore the bending stresses due to the rotation of an eccentric shaft.
Because the stresses are reduced, the Vanguard Jaw Crusher is able to use a smaller eccentric shaft than competitors without sacrificing bearing life, Griess said. The smaller eccentric shaft of the Vanguard Jaw Crusher is a superior design over competitive models, which are unable to control shaft deflection, causing them to resort to a bigger shaft and bearings.