Cement Energy and Environment

enhanced safety practices. They come in kits with installation instructions; alternatively, Metso can provide the customer with a field service team for support or for the complete upgrade installation. "Metso understands the tough nature of the current mining market for our customers, so we made it our goal to design a new generation of crusher upgrades that would enable them to generate more ROI without the need for expensive capital investments," said Jaakko Huhtapelto, sales development director for Metso's spare parts business. The available upgrade kits for Symons/Nordberg cone crushers and Superior gyratory crushers are as follows: • Symons cone crushers - Advanced bowl adjustment control Hydraulic motor bowl adjustment system Hydraulic tramp release and clearing system • Nordberg HP800 and MP cone crushers Jack screw locking nut Top mount clamp cylinder Heavy duty head MP1250 retrofit kit Head maintenance stand • Superior gyratory crushers Super spider Arched spider Shimmed spider bushing Hydraulic shell separators Dual balance cylinder Metso said installing the upgrades can improve productivity through increased product rate capability, easier setting adjustments, better crusher reliability and reduced bridging from over– sized materials. Maintenance can be reduced through the improved lifetime of components. more reliable crushing and easier maintenance procedures. Safety can be enhanced through better maintenance practices, reduced stoppages from bridging , and the usage of automatic or remote settings. Also available from Metso are new maintenance platforms that enhance worker safety when changing wear parts in jaw crushers. The maintenance platforms , for all C Series jaw crushers, include hand rails, a sturdy work platform and a control mechanism that enables precise placement at the desired height of the jaw opening. The aluminum platforms are light enough for one person to move; depending on model size, they weigh between 12 kg and 23 kg. "With a small investment, Metso's new maintenance platform offers a huge improvement in safety when making jaw changes. When the platform is installed correctly into the opening, it holds the jaw in place so that it cannot drop, even if the jaw's upper mounting hardware is loosened or even removed . The platform is lightweight and it is easy to handle and adjust to fit the desired level in the crusher cavity, " said llkka Somera, product manager of Metso's jaw crusher line. Product Lines Cover the Crushing Spectrum Sandvik's latest crusher models include the CH860 cone, designed for high-capacity secondary crush ing, and the CH865 cone for high– reduction tertiary and pebble applications; both feature higher crushing forces relative to mantle diameter and a 500-kW motor. According to the company, both new crushers combine a range of advanced automation features for a more secure and productive process. "We scaled down our larger Sandvik CH890 and Sandvik CH895 mining cone crushers to create two mid-range models," said Andreas Christoffersson , product line manager for cone crushers at Sandvik Mining. "Depending on the application, the CH860 and Sandvik CH865 outperform competing equipment in the midrange segment by as much as 30% and deliver a twofold increase in performance range." FLSmidth offers a comprehensive line of cone crushers, starting at the smaller end of the capacity spectrum with the Raptor 200, which features a low-profile design suitable for mounting on a portable chassis, inverted tramp release cylinders that keep hydraulics cleaner than conventional designs, and a single accumulator for less maintenance. At the other end of the Raptor line is the Raptor 2000, a candidate for "world's largest" and configured with model-specific features such as spiral bevel gearing, double– acting tramp release and clearing cylinder, easy access to critical load-carrying bearings, design elements that include substantial eccentric throw 45