Triple Slope Series Debuts In Australasia

Metso?s Nordberg TS series screens were first launched at Bauma in 1999. Since then, the TS screen has continued to offer a unique design, which makes it the most popular high capacity screen available in the construction industry.

All major aggregates companies throughout Europe and the Americas have adopted the TS series screens, which have become the standard for new plants built worldwide.

?Their entry into the Australasian market has been long awaited,? says Greg Albert, vice president, Vibrating Product Lines, Metso Mining & Construction Technology.

The TS series screen carries numerous industry innovations. It is the only ?banana? screen utilised in aggregate production. The curved decks each consist of three slopes of different inclinations. ?Metso developed this approach to compliment its high capacity crushers and as the market has developed so have the screens,? Greg Albert explained.

The TS series screen is an elliptical throw machine, with the material speed higher at the feed end, circular in the middle and slowed down at the discharge end (hence triple slope). Modular vibrators (MV) are located above the centre of gravity in a specific position to generate a variable elliptical motion. The material automatically speeds up at feed end and slows down at discharge end. This produces accurate specification aggregates and high capacities when compared with conventional screens.

Metso has proven that TS screens will produce from 30 per cent up to 60 per cent higher capacity than a conventional inclined screen. Five sizes of TS series screens are available in two or three deck configurations, from 7.5m2 to 25m2. There are various  unique liner and media options, along with static or vibrating dust enclosures and washing systems. These, along with the MV modular cartridge with automatic grease lubricated vibrators, bring screening into the 21st century.

There are approximately 500 TS series screens operating worldwide today. In Norway, for instance, Metso supplied a complete fine crushing and screening system to Norsk Stein?s Jelsa quarry. This plant expansion included eight TS series screens, four gyratory crushers, a stacker conveyor, and a significant amount of other conveyors.

The Jelsa plant is Scandinavia?s biggest quarry. In 2007, it produced nearly five million tonnes of aggregates. Norsk Stein exports the material throughout Europe via sea freight. The total available reserves in the quarry are estimated at around 350 million tonnes.
After completing the expansion, the targeted production for fine products will be more than 850 tonnes per hour (tph). This is in addition to an existing plant production of 650 tph and total production exceeding 10 million tonnes per year, all with 98 per cent efficiency.
To produce such an extreme amount of high quality aggregate, Norsk Stein wanted high capacity elliptical vibrating screens. The natural choice was to include heavy duty TS series screens, which were adjusted by Metso?s engineering department to meet the site-specific requirements. Norsk Stein required over-protected and staggered deck frames, additional stiffeners, reinforced spring brackets and direct cardan shaft drives.

The eight screens were assembled to schedule in three months on-site at Metso?s factory in M?con, France. Test runs, including a series of dynamic vibrating analyses, were performed on each machine before it left the factory. Results were highly satisfactory.

Metso is excited about launching the TS series range of products into the Australian market, as well as manufacturing these at its facility in Newcastle, Australia. ?The Newcastle facility will have the ability to fully test all vibrating equipment, statically and dynamically, to ensure no issues when units are installed,? explained Greg Albert.

The lower cost per tonne, ease of maintenance, life cycle services programmes and longevity of these machines will be appreciated in Australasia, said Graham Lockwood, Metso?s general manager of vibrating products for Australia and  New Zealand.

?Australian and New Zealand construction and aggregate customers want more from their screening machines than just a low price,? Graham said. ?When you add in that they complement all other Metso crushing and mobile machines, the market here is heading for a screening revolution.?

He suggested the advantages of this machine in new plants was obvious. ?And in existing plants that need upgrading there really is no other comparable machine on the market. We firmly believe the TS will become the new industry benchmark in this region.?

Metso will be offering these machines with its innovative and competitively priced Screen Watch condition monitoring system to train operators and service personnel in predictive maintenance. This will avoid costly downtime of machinery. Add in the unique Metso MV vibrator exchange programme and an operator has the option to take the entire headache out of their screening operation.

The exchange programme allows the operator to trade their used vibrator for a credit towards a new or factory refurbished unit. ?A correctly functioning vibrator is critical in maintaining screen performance. The modular vibrator design enables quick, easy and cost-effective upgrades to ensure optimal screen performance is maintained,? said Alan Garvin, vice president of the ANZ construction division of Metso Mining & Construction Technology. ?Many of Australia?s plants are old and nearing the end of their effectiveness. This is an ideal time for the ANZ aggregate market to look towards more modern, whilst well proven, screening technologies.?

With Trellex screening media, Metso can ensure all screens are producing at their cost-effective best. Metso covers every screening need quickly, conveniently and successfully.

Source: Metso

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