Tag Archives: Poly-Met

Metso places rubber, poly-met wear parts facilities under review

Equipment maintenance, Mineral processing, Mining consumables, Mining equipment, Mining services, , ,

Metso, as part of its Minerals Consumables business area review of manufacturing capabilities in the EMEA region, says it is starting “personnel negotiations” to review the implications at rubber and poly-met wear part production units in Ersmark and Trelleborg, Sweden.

The negotiations concern the potential closure of the factory in Ersmark and the restructuring of the manufacturing operation in Trelleborg, according to the company, and could affect manufacturing related functions and some 150 positions.

Metso confirmed other operations in Sweden are not in the scope of these negotiations.

The Ersmark and Trelleborg units produce rubber and poly-met wear parts used in the mining industry. Today, Metso is a leading player in the rubber and poly-met mill lining business, with a strong service network in all the main mining markets, it said. In addition to Ersmark and Trelleborg, Metso operates nine factories manufacturing synthetic solutions globally.

Sami Takaluoma, President, Minerals Consumables business area, said: “Our target is to utilise the full potential of the most efficient manufacturing methods and optimise sourcing opportunities and logistics. By developing our supply capabilities at the regional and global levels, we are actively responding to changes in the competitive environment, as well as improving our flexibility in fulfilling customers’ needs.”

Norilsk Nickel chooses Metso Megaliner for Talnakh concentrator

Base metals, Comminution of minerals, Equipment maintenance, Mine operation news, Mineral processing, Mining equipment, Mining maintenance, Mining safety, Mining services, , , , , , , , ,

Norilsk Nickel has recently switched out the chrome and molybdenum alloy lining of a SAG mill at its Talnakh concentrator in Russia as the company looked to increase the life of these all-important wear parts.

Sever Minerals and Norilsknikelremont (a subsidiary of Norilsk) were contracted to complete the mill relining project, using liners supplied by Metso’s global team, which also used the OEM’s Megaliner™ concept.

The new lining is more durable, weighs less and ended up being safer to install than previous the previous lining, according to Norilsk.

A Norilsk spokesperson told IM that the mill lining was replaced with two elements, the Metso Poly-Met; a rubber-steel combination installed on the front-facing part of the mill; and the Metso Megaliner, which has large shell or head liners used to protect the drum.

The spokesperson added: “The cladding manufacturers guarantee that the mill can work for 5,600 hours uninterrupted (that is about eight months non-stop). The previous version required the SAG mill to be stopped for replacement every six months.”

By developing the technology, adopting better project management and using the specialised equipment, Norilsk said it was able to reduce the time taken to replace the mill lining by three days.

The Megaliner is, according to Metso, a new, innovative mill liner concept, dramatically improving worker safety and maximising mill availability. Each shell or head liner covers a large area, has few attachment components and an attachment system which gives a safer working environment for the installation crew, it said.

The weight of the mill lining also came down with the switch from pure metal to a metal-rubber compound, Norilsk said.

“The new mill liner weighs close to 130 t, which is 120 t less than the old mill liner. The average weight of one mill liner element is 1.8 t (elements have different configurations and respective mass),” the spokesperson said.

This reduced weight came with other benefits.

“Due to the lower weight of the capstan, the new mill liner is more wear resistant and better technologically-equipped to cope with an increased number of planned tasks,” the spokesperson explained.