GÜRSAN has been working on mineral processing technology
In hard and abrasive material processing applications, roller bearing system of K950 cone crusher makes it superior not only from impact crushers but also from other cone crushers with bronze hydrostatic bearing. Its roller bearings, which work with low friction, enable a higher portion of electric motor power to be transformed into crushing energy. Thanks to low friction roller bearings, the machine not only generates lower heat but also needs smaller lubrication unit, less lubricating oil and smaller cooling unit. Since K950 does not have upper bearings its inlet is completely open and this enables problem-free operation and homogenous feeding into crushing chamber in coarse feeding applications.
Hydraulic pistons around body of the machine provide protection against metal parts that may be in feed material. These pistons, which pull upper body to lower body, senses the excess load when metal enters in the machine and release upper body until metal part pass through the machine. Stroke value of these pistons for releasing parts does not change and it does not depend on settings of the machine. The same pistons enable cleaning of the material collected in the machine by lifting upper body in case of electric failure during operation. When needed, additional cleaning area can be obtained by opening hydraulic setting.
High technology bearing system of K950 enables it to operate at high RPM. This high RPM combined with aggressive eccentric stroke and wide angle crushing chamber ensure optimum capacity and cubic shape of the product. High crushing reduction is obtained especially in secondary applications.
Each section of the crusher has been designed and manufactured by aiming long service life and easy operation. Main bearing shell is equipped with two stage sealing system against dust. Labyrinth seal system is used in primary stage and rubber seal system is used in the secondary stage. Main body is welded by our certified welders and subjected to stress removal process. Head and eccentric is manufactured from special alloy steel cast that can withstand high crushing loads and metal parts in the material. Upper and lower main shaft is manufactured from chrome molybdenum alloy forged steel. Again pinion and main gear are manufactured from special alloy forged steel and their surfaces are hardened with induction and they are ground. Mantle is designed in a way that can hide balancing weights on eccentric and provide protection against the abrasion caused by flow of crushed material.