GÜRSAN has been working on mineral processing technology
We have 9 different types of Primary and Secondary type Jaw Crushers from laboratory type with 150 x 100 mm (6”x4”) feed opening to 1400 x 1100 mm (51”x43”)jaw gap. Our Jaw Crushers’ high flywheel speeds, jaw grabbing angles, pitmans’ toggle plates and rear blocks as well as their higher performances based on their special geometry, their durability and user friendly adjustment mechanisms provide their users great and unique operational advantages.
All GURSAN Jaw Crushers have been equipped with hydraulic assistant adjustment mechanism. This system facilitates easy and fast adjustment of discharge setting according to the product curve which you wish to obtain. Adjustment of discharge setting may be done by inserting or removing of adequate number and thickness of adjustment plates to and from the behind of the adjustment block which pushed forward by means of hand pump hydraulic system. This system provides possibility to make adjustment in larger intervals and is much more safe compared to other adjustment mechanisms.
On the other hand stationary and mobile jaws are manufactured from manganese steel so as to be used up and down and furthermore their rear surfaces have been machined in order to prevent them to spoil surfaces on which they will lean and to prevent breakages throughout their service life due to contraction. Prestress
with leaf springs has been given onto clamping studs of key locks fixing the jaws against break loose that may occur due to impacts and surface crushes.
Flywheel hubs of our large jaw crushers K 07 1100 x 900 (43”x35”) and K 08 1400 x 1100 (55”x43”) have been equipped with special tightening system which connects flywheels to eccentric shaft. While this system ensures that the flywheel can hold the shaft safely and tightly in case of excessive stresses occurring at the time of restarting, caused by pieces of rock retained at the mouth of jaw as the result of stopping of the machine because of any reason, it has been facilitating disassembly-reassembly operation which may become necessary for both maintenance and transportation.
Crusher’s shafts have been manufactured from forged steel and provided with spherical oscillating roller bearing. Roller bearings are of grease lubricated, which have been protected with labyrinth felts against external effects. As optional unit, crushers have been equipped with automatic lubrication system. Diameters of outer bearing and inner bearing are equal with one another, and for facilitating assembly and disassembly operation of outer bearings are of taper type with hole, which are fitted on the shaft with taper sleeve; inner bearings however can be easily dismantled by means of hydraulic disassembly system through hydraulic canal in the shaft.
“Pitman” has been manufactured from cast steel and designed to resist against stressed loads even under the severest conditions. Toggle plates (safety plates) of machines have been manufactured pig cast iron against materials fed and pieces of iron which might slip unintentionally and their geometry has been so designed as to break easily under overload with out causing damage by such pieces of iron onto other components of the machine. Houses of the toggle plates are of non-lubricating type and so designed that they could be easily replaced.