Modern Quarrying January-February 2015

AROUND THE INDUSTRY PLANT and EQUIPMENT SOL TIONS

Telsmith jaw crushers prove their worth

An R8-million export order for two Osborn Telsmith 36 x 48 single toggle jaw crush- ers and an apron feeder, to be employed at Petra Diamonds’ Williamson mine in Tanzania, has been awarded to Osborn. This is the latest in a series of orders that the Johannesburg-based manufac- turer has received from Petra Diamonds. Osborn’s Chris Slade elaborates: “Osborn already has jaw crushers and apron feed- ers in this application at Petra operations in South Africa, and these have proved themselves over the years. Osborn has also previously supplied an apron feeder to Williamson mine in Tanzania’s Shinyanga Province. This latest order reflects our client’s confidence in our products’ quality and performance.” The scope of Osborn’s contract included manufacturing and supply- ing Williamson’s new jaw crushers, as well as supervising their installation and commissioning. The single toggle crushers are

designed for a high capacity through- put due to the elliptical movement of the swing jaw, which also assists in the discharge of the crushed material. “As the single toggle crusher will achieve far higher capacities than the double toggle design, they are often used as a primary crusher,” Slade explains. The Osborn Telsmith single toggle jaw crushers offer a production capacity up to 1 000 t/hour and boast rock compressive strength up to 500 MPa. They feature a patented hydraulic beam locking system

The apron feeder for Petra Diamonds’ Williamson mine in Tanzania.

and excellent nip angle, with reversible jaw dies for maximum wear. www.osborn.co.za

Nordberg GP7 – efficiency at its best Metso continues to expand its range of high-capacity crushers by launching the Nordberg GP7, its largest Nordberg GP sec- ondary crusher to date.

This ensures high crushing perfor- mance with even the hardest feed and helps maintain operational costs. In addi- tion, safety features have been enhanced. The steep cavity and easily changeable stroke ensures high performance when using a power rating as high as 55 kW. www.metso.com

The new 58 t crusher features the most ideal combination of feed opening, cavity design and capacity, which Metso claims, is the best in the market.

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