The Mesabi Vibrating Screen has long been a favorite for pit, quarry and mine operations that demand extra strength, extreme ruggedness and stubborn resistance to wear. First developed for use on Minnesota's renowned Mesabi Iron Range, it has undergone constant improvement to meet the growing need for heavier, sturdier, more efficient and higher-capacity scalping and screening units. The positive, full-circle throw produces the same vibration in all parts of the screen.
All screens can develop vibration which is transmitted to the supporting structure.
To isolate this vibration, a secondary suspension system based on optimum mechanical spring absorption of screen vibration was developed. In addition, it reduces the strain on screen frames and pans - lets you operate with less maintenance and fewer changes of prematurely worn screen plate or mesh. The heavy bottom spring carries the weight of the screen and its downgoing thrust, while the smaller top spring absorbs the upgoing thrust. Built extra heavy to give rigid support for the bearings and screen pan, the Mesabi's main frame will carry both the screen and its heavy load of materials without a sign of sag or twist. The basic frame consists of heavy channels reinforced with wide-flange cross beams.