River pebbles with a diameter of no more than 630 mm are sent to the NK75J jaw crusher mobile station for preliminary crushing by a forklift. After that, after careful screening by the feeder, small and medium-sized materials slide smoothly onto the main belt conveyor through the special grate hopper, merge with the materials processed…

It is well known before the use of counterattack crusher for crushing first to determine the device itself can work normally, simple first, is to be performed before the operation check of various kinds. For example to examine the protective device is in good condition, to timely eliminate unsafe factors. Moreover also check the crushing…