the size of a jaw crusher is designated by the rectangular or square opening at the top of the jaws .for instance, a 22 x 30 jaw crusher has an opening of 22' by 30', a 46 x 46 jaw crusher has a opening of 46' square.
mobile jaw plate and stationary jaw plate. when the stuff is very hard, the max feed size should less than 2/3 of the opening width. start up when the machine and transmission part is normal.
replace the new eccentric shaft, adjust the working load or replace the suitable crusher; replace the new eccentric shaft, do not use the brackets and bracket pads that do not meet the design standards; replace the new eccentric shaft and use the properly heat-treated eccentric shaft. movable jaw plate is broken. cause analysis:
a jaw crushers flywheel, toggle plates, pitman, eccentric shaft, and driving motor generate the crushing action and provide the energy needed to break the material. there are some different styles of jaw crushers, the most common being the overhead eccentric jaw shown above or a double toggle jaw.
rock is dropped between two high manganese steel jaw plates, one is fixed jaw plate, one is movable jaw plate. movable jaw plate moves up and down via eccentric shaft, and then crush the rock between the two jaw plates into smaller size.
jaw crusher. the jaw crusher is suitable for coarse or medium crushing operations of various ores and rocks with a compressive strength which is no more than 320 mpa.
jaw crusher - str type. kleemann offers a range of jaw crushers for different feed and grain sizes and performance capacity. the single toggle jaw crusher of the str type has openings up to 1600 x 2100 mm in size. the maximum feed capacity is up to 1500 t/h.
as a rule, jaw crushers have a 6:1 or 8:1 ratio for crushing material. still using the 32 x 54 jaw crusher example, the top size of the feed entering the crushing chamber has to follow the f80 rule that 80% of the top size feed material is smaller than the gape opening.
double toggle jaw crusher, type 2121, size 2121/10-08. the mode of operation jaw crushers are equipped with one fixed and one moveable crushing jaw moving jaw , both of which eccentric shaft serve as compensation for heavy loads. a flywheel is provided in the form of a pul-ley.
the first shaft is a pivoting shaft on the top of the crusher, while the other is an eccentric shaft that drives both toggle plates. the chewing movement, which causes compression at both material intake and discharge, gives the single toggle jaw better capacity, compared to a double toggle jaw of similar size.
jaw crushers are often designated by the size of the top opening where material enters. the openings tend to be either rectangular or square and are referenced in inches. for example, a 3244 or 32×44 jaw crusher has a 32 by 44 opening. 32 being the gap at the top between the jaw dies and 44 being the width between the side plates.
the differences between jaw crusher and other secondary crusher. firstly, they differ in the working principle. for jaw crusher, the driving power of the generator leads to the movement of the swing jaw and of the eccentric shaft and then the materials are crushed. while the working principle of cone crusher is laminated crushing.