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Metso Outotec cuts cost and size with SUPERIOR MKIII 6275UG primary gyratory crusher

Metso Outotec has launched a new extension to its primary gyratory crusher range that could find a home in open-pit and underground mines where space constraints are an issue.

The SUPERIOR™ MKIII 6275UG can be used in different types of applications and provides large capacity with significant savings in capital expenditure and operating costs, the company says.

Jim Bathie, VP Mining Crushers at Metso Outotec, said: “We are very excited about the SUPERIOR MKIII 6275UG. As a direct response to the market demand, we’ve designed a more compact primary gyratory crusher reducing capital expenditure that is applicable to both underground and above ground applications for the mining industry.

“We think that we have achieved our goal and upheld the superior standards we are known for.”

The crusher was born out of a need for a high capacity underground primary crusher that did not require a primary feeder, scalper, and the associated infrastructure therein, the company said. Minimising the need for high cost stationary grids to control topsize underground was a requisite, and the large topsize acceptance was met with the UG design, it claimed.

Additional requirements for an underground crusher were the ability to transport the components down shafts with spacial restrictions, assemble the crusher with minimal need for welding and hot works, and the ability to feed the crusher from 360° around the feed opening – “these were all met with the 6275UG MKIII”, the company said.

The 6275UG crusher’s feed opening is 15% larger than similar crushers, while also reaching up to 30% more capacity than comparable crushers, according to the company. The up to 10% reduction in station height translates into capital cost reductions of as much as 20%, Metso Outotec claims.

Some additional key design targets for this new crusher were less downtime and easy maintenance. With the MKIII UG, downtime can be reduced by up to 70% thanks to concave replacements with another Metso Outotec proprietary innovation, the Rotable Topshell.

The SUPERIOR MKIII 6275UG is designed to be part of a SmartStation, where productivity and availability are optimised with sophisticated automation in each phase of the process, the company says.

Incoming material analysis can be carried out automatically with VisioTruck™, and Metso Outotec Metrics provide analytical dashboards and condition monitoring to ensure optimal crusher performance. A consistent vault level is ensured with automatic crusher adjustments, while VisioRock™ and control system are used for wear compensation.